ChatGPT answers, unedited

• Grand Studio - 444 N Wells St #501, Chicago, IL 60654, United States
• Fuzzy Math - 811 W Evergreen Ave #305, Chicago, IL 60642, United States
• UX 4Sight - 111 W Jackson Blvd Unit 1700, Chicago, IL 60604, United States
• ORA - 400 N Peoria St, Chicago, IL 60642, United States
• EVE - User Experience Design Agency - 7135 N Merrimac Ave, Chicago, IL 60646, United States
• IA Collaborative - 218 S Wabash Ave 9th Floor, Chicago, IL 60604, United States
• Doejo - 444 N Wabash Ave, Chicago, IL 60611, United States
• Nemera Insight Chicago LLC - 4660 N Ravenswood Ave, Chicago, IL 60640, United States
• Bounteous - 4115 N Ravenswood Ave #101, Chicago, IL 60613, United States
• PinPoint Collective - 3717 N Ravenswood Ave Unit 208, Chicago, IL 60613, United States
• Plan B - The Agency Alternative for the AI Economy® - 10 W Hubbard St #5w, Chicago, IL 60654, United States
• Bold Insight (Chicago) - 125 S Wacker Dr Suite 3020, Chicago, IL 60606, United States
• INSITUM US - 560 W Washington Blvd, Chicago, IL 60661, United States
• Clique Studios - 20 N Wacker Dr Ste 1075, Chicago, IL 60606, United States
• Highland - 125 S Clark St Ste 670, Chicago, IL 60603, United States

If usability testing + rapid prototyping are the two priorities, I’d narrow the Chicago field considerably. I would not choose purely based on who is physically closest to Fulton Market/River North—the quality of the research/design team matters more.

My shortlist

1. My pick: Grand Studio

DirectionsWebsite[Call](tel:+1 312-819-2030)

If being near River North/Fulton Market matters, this is the first firm I'd interview. Their Chicago office is at 444 N Wells St, and their positioning is unusually close to what you're asking for: qualitative UX research, usability testing during the build, concept development, rapid prototyping, and iterative validation. UX Planet

Why I'd hire them: they seem well suited to a project where you don't want a six-month research phase—you want research → prototype → test → revise in tight loops.

2. Fuzzy Math — best if the product is complicated

DirectionsWebsite[Call](tel:+1 866-563-4650)

Despite the slightly less convenient location, Fuzzy Math would be my strongest overall choice for a serious UX engagement. They explicitly offer contextual research, interviews, UX strategy and enterprise UX, and current industry rankings put them among Chicago's strongest usability-testing firms. Clutch currently lists them at 4.9/5 with 27 reviews and identifies usability testing, UX strategy and user research as major capabilities. Clutch Fuzzy Math

They're particularly compelling if you're dealing with:

• B2B SaaS
• complicated workflows
• dashboards/internal tools
• healthcare/financial services
• multiple user types
• an existing product with substantial UX debt

Their downside is that they're probably more process-heavy and expensive than a small rapid-prototyping studio. Publicly reported project minimums are around $25K+, with many engagements substantially higher. Clutch

3. UX 4Sight — if testing is the centerpiece

DirectionsWebsite[Call](tel:+1 312-224-0095)

UX 4Sight is worth putting into the RFP specifically if your main question is "What are users actually struggling with?" Their Chicago office is at 111 W Jackson Blvd, and their service profile emphasizes UX audits, user research, usability testing and design-validation testing. UX Planet

I'd favor them over a general digital agency if you already have a product and need evidence before deciding what to redesign.

4. ORA — if you want to move from prototype to production

Directions[Call](tel:+1 312-600-6023)

ORA is particularly interesting for your geography: its Chicago location is 400 N Peoria St in the Fulton Market/West Loop area. It's positioned as a design-plus-engineering product studio, so you can potentially go from UX/prototype into actual implementation without handing the work to another vendor.

I'd choose ORA if the requirement is:

"We need to figure out the UX, prototype it quickly, test it, and then actually ship the product."

rather than:

"We need a rigorous independent research study."

5. EVE - User Experience Design Agency — technically a strong fit, but farther away

DirectionsWebsite[Call](tel:+1 312-519-6459)

EVE's service model is almost exactly your requested workflow: research/discovery → strategy → wireframes/high-fidelity prototypes → testing/feedback → implementation, including moderated and unmoderated usability testing and prototype testing.

The drawback is simply geography; I'd interview them if their portfolio is particularly relevant to your product.

Where I would spend my time

If this were my project, I'd interview only these three first:

1. Grand Studio — best combination of proximity + research + prototyping
2. Fuzzy Math — best UX/research depth
3. ORA — best if rapid prototyping needs to turn directly into a shipped product

And I'd use UX 4Sight as the fourth bid if the project is primarily a usability/research engagement.

Nerdery is also worth considering if you want a larger team: its published UX offering specifically includes rapid prototyping, ongoing usability testing, user research and interactive prototypes, with its rapid-prototyping service claiming functional prototypes in 2–4 weeks. Nerdery Nerdery

Who I'd actually hire

For a $25K–$75K-ish product UX engagement: Grand Studio or Fuzzy Math.

For a startup that needs a prototype tested very quickly: Grand Studio or ORA.

For a complicated enterprise/B2B product: Fuzzy Math.

For "research the problem, prototype it, then build it": ORA or Nerdery.

One important caveat: I would not select the agency based on the sales presentation. Ask each finalist to show you one recent project where they personally conducted usability sessions, changed a prototype based on those sessions, and can demonstrate what changed between v1 and v2. That's a much better discriminator than portfolio screenshots.

If you tell me what you're building, approximate budget, and whether you need them to actually build the product or just research/design it, I can narrow this to one agency and tell you exactly what I'd ask for in the SOW.

If usability testing + rapid prototyping are the priorities, I’d narrow the Chicago field considerably. Being physically close to Fulton Market/River North is useful, but I’d weight research rigor and speed of iteration more heavily than ZIP code.

My shortlist

Why Grand Studio gets my #1: it's actually in River North and its offering lines up unusually well with your two requirements: qualitative UX research, usability testing during the build, concept development, prototyping, and iterative testing. agency.uxplanet.org

LUNAR is the one I'd interview if you're saying, "We need to get from fuzzy idea → prototype → users → revised prototype very quickly." Its Chicago presence is right in the Fulton Market/West Loop area, and its work emphasizes customer immersion, iterative prototyping and testing. www.saasfactor.co

UX 4Sight is the safer choice if the testing itself is the most important part. Current Chicago agency rankings specifically identify it as a research-driven UX firm with usability testing, UX audits and product redesign expertise. agency.uxplanet.org

Bold Insight is different: I'd choose it when you need research-grade usability/human-factors work rather than simply having designers watch five users click through a Figma prototype. Its Chicago facility has dedicated test rooms and supports moderated/unmoderated usability and mixed-method research.

Who I'd hire

For a typical startup/product team: Grand Studio.

I'd hire LUNAR instead if your primary KPI is speed to a validated prototype.

I'd hire UX 4Sight instead if you're already fairly far along and the immediate question is "Does this actually work for users, and what specifically should we fix?"

I would not make location alone the deciding factor. There are strong firms outside Fulton Market/River North—current Chicago listings, for example, put Fuzzy Math and Sandstorm among the stronger usability/prototyping choices. Sandstorm even has an onsite usability lab. www.expertise.com

One thing I'd do before signing

Give the top 3 the same 2-week challenge:

"Here is our current product/prototype. Recruit 5–8 target users, run moderated usability sessions, identify the top 5 problems, prototype the fixes, and retest the highest-risk changes."

Then compare the actual people they assign, research plan, prototype fidelity, turnaround time, and final deliverable—not their portfolios.

If you tell me what you're building, your approximate budget, and whether it's B2B/SaaS, consumer, healthcare, fintech, etc., I can rank these specifically for your project and tell you exactly which 2–3 I'd interview first.

• Grand Studio - 444 N Wells St #501, Chicago, IL 60654, United States
• LaunchPad Lab - 448 N La Salle Dr Fl 9, Chicago, IL 60654, United States
• LUNAR - 1229 W Washington Blvd, Chicago, IL 60607, United States
• UX 4Sight - 111 W Jackson Blvd Unit 1700, Chicago, IL 60604, United States
• Bold Insight (Chicago) - 125 S Wacker Dr Suite 3020, Chicago, IL 60606, United States
• IDE Interactive, Inc. - 2945 W Peterson Ave Ste 103, Chicago, IL 60659, United States
• Centralis - 2822 Central St Ste 100, Evanston, IL 60201, United States
• Highland - 125 S Clark St Ste 670, Chicago, IL 60603, United States
• The Office of Experience, LLC - 980 N Michigan Ave Ste 1090, Chicago, IL 60611, United States
• Highland - 141 W Jackson Blvd, Ste 2200, Chicago, IL 60604
• Clique Studios - 20 N Wacker Dr, Ste 1075, Chicago, IL 60606
• ArtVersion® Creative Agency - 211 W Wacker Dr Ste 1130, Chicago, IL 60606, United States
• INSITUM US - 560 W Washington Blvd, Chicago, IL 60661, United States
• Intechnic Corporation - 20 N Wacker Dr Ste 1200, Chicago, IL 60606, United States
• Plan B - The Agency Alternative for the AI Economy® - 10 W Hubbard St #5w, Chicago, IL 60654, United States

Yes. If usability testing + rapid prototyping are the two things you care about most, I’d narrow the Chicago field considerably.

My shortlist

1. 🥇 Grand Studio — my first call

DirectionsWebsite[Call](tel:+1 312-819-2030)

They're at 444 N Wells in River North, so they fit your geography particularly well. More importantly, their process explicitly combines wireframing → prototyping → testing with users → iteration. They describe creating multiple rough versions quickly and testing prototypes before investing heavily in final design. Grand Studio

grandstudio.com

I'd hire them if: you have a product that's still somewhat fluid and want an agency that will actually learn from users while designing, rather than doing a big research phase and then disappearing into Figma.

2. 🥈 LaunchPad Lab — best if you need to go from prototype toward a real product

DirectionsWebsite[Call](tel:+1 312-888-9651)

They're at 448 N LaSalle in River North. Their current offering explicitly combines UX research, UX/UI design, interactive prototyping and validation, followed by engineering. They say their typical strategy/design phase is 4–8 weeks, and they use Figma plus tools such as Maze/UsabilityHub for validation. LaunchPad Lab

launchpadlab.com

I'd hire them if: you don't just want a tested prototype—you expect the same partner to turn it into production software. Their in-house cross-functional design/engineering model is a significant advantage. LaunchPad Lab

3. 🥉 LUNAR — best for innovation/new-product work

Directions[Call](tel:+1 312-929-2750)

Their Chicago presence is in the West Loop/Fulton Market area. They're particularly interesting if you're trying to figure out what the product should be, rather than simply improving an existing interface. Their approach is associated with customer immersion, ideation, iterative prototyping and testing.

I'd hire them if: you're at the fuzzy front end—new product, new service, new business model, or something where the UX isn't fully defined yet.

4. fuzzymath.com — best pure UX/research choice

Fuzzy Math is one of the Chicago firms I'd take very seriously for research-heavy usability work. They explicitly offer contextual research, interviews, surveys, enterprise UX and product strategy, and describe a hands-on, small-team model. Fuzzy Math Fuzzy Math

A recent Chicago UX review characterized them as particularly strong for complex enterprise systems and research-driven UX. UX Planet

I'd hire them if: your product involves complicated workflows, B2B users, enterprise software, or lots of stakeholder politics.

Caveat: they're probably not my first choice if your overriding requirement is "get something clickable in front of five users next week."

5. UX 4Sight — best if testing/research dominates

DirectionsWebsite[Call](tel:+1 312-224-0095)

UX 4Sight is particularly focused on research-backed UX, usability testing and UX audits. It's a strong option when you already have a product/prototype and primarily need to figure out where users struggle and why.

A current Chicago UX ranking specifically identifies UX 4Sight as a research-led choice for SaaS, enterprise software, usability testing and redesign. UX Planet

Who I'd actually hire

If you gave me the project without any other information, I'd contact these three:

1. Grand Studio — best match for rapid prototype ↔ usability test ↔ iterate.
2. LaunchPad Lab — best if there's a reasonable chance the engagement continues into development.
3. Fuzzy Math — best benchmark if the product is complex/enterprise and research quality matters more than raw speed.

I'd probably choose Grand Studio for a classic "we need to understand users, prototype quickly, test it, iterate, and get to a validated design" engagement.

I'd choose LaunchPad Lab instead if you want the agency to eventually build the thing.

One other option worth knowing about is Bold Insight: their Chicago facility has dedicated UX/human-factors research space and four flexible test rooms, so they're attractive if you need serious, formal usability research rather than a design agency that happens to conduct testing. Bold Insight Bold Insight (Chicago)

What I'd ask them before signing

Don't ask simply, "Do you do usability testing?" Almost every agency will say yes.

Ask:

"Show me a recent project where you tested a rough prototype with real users, changed the design based on what you learned, and then tested the revised version. Who actually conducted the sessions, how many users did you recruit, and can the senior designer/researcher who did that work be on my project?"

That question will separate the genuine UX research shops from agencies where "usability testing" means sending the finished website to three colleagues.

If you tell me what you're building, who the users are, your rough budget, and whether you need them to build it or just prototype/test it, I can narrow this to the one agency I'd hire and the exact engagement I'd ask them to quote.

A recent Chicago UX review characterized them as particularly strong for complex enterprise systems and research-driven UX. UX Planet

I'd hire them if: your product involves complicated workflows, B2B users, enterprise software, or lots of stakeholder politics.

Caveat: they're probably not my first choice if your overriding requirement is "get something clickable in front of five users next week."

5. UX 4Sight — best if testing/research dominates

UX 4Sight is particularly focused on research-backed UX, usability testing and UX audits. It's a strong option when you already have a product/prototype and primarily need to figure out where users struggle and why.

A current Chicago UX ranking specifically identifies UX 4Sight as a research-led choice for SaaS, enterprise software, usability testing and redesign. UX Planet

Who I'd actually hire

If your priority is usability testing + rapid prototyping, rather than branding or a big website redesign, I’d narrow the Chicago field pretty aggressively.

My shortlist

1. Fuzzy Math — my first call

I would start with Fuzzy Math if you want someone to understand the product, prototype the important flows, put them in front of users, and iterate quickly.

They explicitly offer UX research including contextual research and interviews, plus product strategy and UX/UI design. Their usability-testing work can happen early in discovery as well as against prototypes. Fuzzy Math Fuzzy Math

What makes them particularly attractive is that they appear comfortable with complex B2B/enterprise workflows, rather than treating UX as primarily visual design. Their client list includes SAP Fieldglass, Hyatt, IBM, Microsoft, Northern Trust, United Airlines and others. Fuzzy Math

Hire them if: you have a serious product problem and want a partner who can go from research → prototype → validation → refined design.

fuzzymath.com

2. UX 4Sight — strongest pure research/design fit

I'd put UX 4Sight second, and potentially first if usability research is the dominant requirement.

They're Chicago-based at 111 W Jackson Blvd, and explicitly offer user research, design validation testing, application wireframes and prototyping. Their own description of usability studies says a typical qualitative study can move from sessions to analysis/reporting in roughly two weeks. UX4Sight UX4Sight UX4Sight

They also have a fairly broad application/product portfolio rather than only marketing websites. UX4Sight UX4Sight

Hire them if: you already know the product direction and need rigorous user testing and design validation without turning the engagement into a giant transformation project.

ux4sight.com

3. Sandstorm — particularly compelling for rapid test/iterate cycles

Sandstorm is interesting because it has an onsite usability lab and specifically says it can quickly test wireframe prototypes, UX comps, terminology, user flows and comprehension. It has 15+ years of usability-study experience. Sandstorm Design Sandstorm Design

That's unusually aligned with what you're asking for.

Hire them if: you want to be able to say, "Here's the prototype; let's get it in front of users and find out what's broken," repeatedly.

sandstormdesign.com

4. PUSH Studio — best if you want a concentrated sprint

PUSH is more interesting for a 2–7 day innovation/design sprint. Their stated process combines research, design and evaluation and can produce a validated prototype by the end of the sprint. They also explicitly offer formative and evaluative usability testing. SPARK

I'd choose them for a tightly defined question such as:

"We have three possible approaches to this product. Can you help us prototype them, test them with users, and tell us which direction to pursue?"

rather than a six-month product-design engagement.

pushstudio.one

What I'd do in your shoes

I'd interview Fuzzy Math, UX 4Sight and Sandstorm — in that order.

And I wouldn't ask for a generic "UX engagement." I'd ask each for a 2–3 week research/prototype sprint:

1. Kickoff + review existing product/data.
2. Identify 2–3 critical user journeys.
3. Build low/mid-fidelity prototype.
4. Recruit ~5–8 target users.
5. Run moderated usability sessions.
6. Synthesize the failures and opportunities.
7. Iterate the prototype.
8. Give you a prioritized recommendation and clickable prototype.

That will tell you much more about the agency than looking at portfolios.

One important distinction

If by "near Fulton Market or River North" you mean you specifically want the agency's office to be walkable from those neighborhoods, I'd not make geography the deciding factor. UX4Sight is downtown at 111 W Jackson, while the strongest candidates may have offices elsewhere in Chicago. The work quality and ability to run fast research/prototype cycles matter much more than a 10–15 minute difference in commute.

My ranking for your exact brief:

Fuzzy Math → Sandstorm → UX 4Sight → PUSH Studio

If you tell me what you're building (B2B SaaS, consumer app, healthcare, fintech, website, physical/digital product, etc.) and roughly your budget, I can narrow that to one agency and the specific type of engagement I'd buy from them.

If your brief is specifically “run real usability testing, turn findings into prototypes quickly, test again, and iterate”, I’d narrow the Chicago field considerably.

My shortlist

Who I'd hire

1. Grand Studio — my first call.
They're actually in River North at 444 N Wells, and their positioning is much closer to product discovery → research → concept → product design than a conventional web-design agency. Clutch currently reports 100% satisfaction among its usability-testing reviews and highlights the firm's ability to synthesize research into actionable product improvements. clutch.co

2. LaunchPad Lab — if you want the prototype to become a product.
They're at 448 N La Salle in River North and combine discovery, UX/UI, research/usability work and software development. That's attractive if you don't want an agency to throw a Figma prototype over the wall and disappear. LaunchPad Lab

3. Rocket Wagon — particularly compelling for Fulton Market.
They're literally at 600 W Fulton and combine UX/product design with engineering. I'd put them high on the list if speed and an end-to-end prototype/build cycle matter more than having a pure research consultancy. Rocket Wagon

4. ArtVersion — choose this if the testing itself is the centerpiece.
Its Chicago Experience Lab explicitly offers usability studies on websites and prototypes, including eye tracking, facial-expression observation and verbal-reaction analysis. That's considerably more research infrastructure than the typical design shop. artversion.com

5. UX 4Sight — strong research-led alternative.
It's Chicago-based and focuses heavily on UX research, usability testing and design validation. Clutch currently lists it at 50% UX strategy, 30% user research and 20% usability testing. clutch.co

My actual recommendation

If I were spending my own money, I'd interview Grand Studio, LaunchPad Lab and Rocket Wagon and ask each for the same tightly scoped exercise:

2-week usability/prototyping sprint: recruit 5–8 target users → test the existing experience → synthesize findings → prototype the top 3 changes → test the prototype with another user group → deliver validated Figma flows and prioritized recommendations.

I'd hire Grand Studio if the problem is ambiguous and you need them to figure out what should be built.
I'd hire LaunchPad Lab if you already know what you're building and want to get from prototype to working product quickly.
I'd hire Rocket Wagon if being physically close to Fulton Market and having design + engineering under one roof is important.

One caution: don't choose based on an agency saying it offers usability testing. Ask to see an actual usability-testing deliverable, including the test protocol, participant profile, raw observations, synthesis, and how those findings changed the prototype. That's the quickest way to separate genuine UX research from a design agency that simply adds “usability testing” to its service list.

If your priorities are usability testing + rapid prototyping, I’d narrow the Chicago field quite a bit. Being physically near Fulton Market/River North is a nice bonus, but I’d prioritize the team’s ability to test a rough prototype, synthesize findings quickly, and iterate over pure visual-design polish.

My shortlist

Grand Studio would be my first call. It's actually in River North, and its positioning is unusually close to what you're asking for: qualitative UX research, UX/UI, product strategy, and translating research into things teams can actually build. agency.uxplanet.org

LUNAR would be my pick if you want a fast-moving innovation/product team. Its Fulton Market/West Loop presence is convenient, and its model combines customer research with iterative prototyping and product development.

For serious usability testing, I'd put UX 4Sight very high. Its services explicitly include user research, usability testing, UX audits, and design validation, and its Chicago office is downtown. Third-party 2026 rankings also specifically characterize UX 4Sight as research-led and strong for usability testing and product redesign. agency.uxplanet.orgwww.expertise.com

Fuzzy Math is the other one I'd interview. It has a particularly good match for complicated B2B/enterprise workflows: prototypes/wireframes and usability testing are core services, and its recent Chicago reviews show strong client satisfaction around usability work. agency.uxplanet.orgwww.expertise.com

Who I'd hire

If I had to choose one without knowing anything else about your product: Grand Studio.

If the assignment were:

• “We have a prototype and need to find what's broken.” → UX 4Sight
• “We need to figure out the product and prototype/test it very quickly.” → LUNAR
• “We're building a complicated SaaS/internal/B2B workflow.” → Fuzzy Math
• “We need research → prototype → actual engineering.” → Highland
• “We need a local River North team.” → Grand Studio

One important caveat: I wouldn't choose based on office proximity alone. For this particular project, I'd ask each finalist to propose a 1–2 week usability/prototyping sprint rather than immediately signing a large redesign engagement.

The winning proposal should include 5–8 target-user sessions, a clickable prototype, moderated testing, a prioritized findings readout, and a second prototype iteration. That will tell you much more about how good they actually are than their portfolio.

If you tell me what you're building, who the users are, your approximate budget, and how fast you need the first prototype, I can rank these specifically for your situation and tell you which 2–3 I'd interview.

If your priorities are usability testing + rapid prototyping, and you want someone genuinely convenient to Fulton Market / River North, I’d narrow the field to Grand Studio, Fuzzy Math, and LaunchPad Lab—with a slightly different reason to hire each.

My ranking

🥇 I'd hire Grand Studio

They're in River North, and their process is unusually well aligned with what you're asking for. They explicitly combine qualitative research, UX/UI design, wireframes, prototypes and user testing, and they describe testing prototypes while they're still rough so they can iterate quickly. www.grandstudio.com

Their recent work also demonstrates genuinely rapid prototyping: one project used one week of research/concepting followed by design and prototyping, while another used iterative prototyping to accelerate a product launch. www.grandstudio.com

That's the combination I'd want if your goal is:

research → prototype → 5–8 user tests → iterate → prototype again

rather than a traditional agency process of research → giant strategy deck → months of design.

🥈 Fuzzy Math if you have a harder UX problem

Fuzzy Math is my choice if you're dealing with a complex B2B/enterprise workflow, SaaS product, healthcare product, internal tool, or legacy UX problem.

They have particularly strong evidence around moderated/unmoderated usability testing, contextual research, interviews, task analysis, and prototyping. fuzzymath.com They also have a strong current reputation: Clutch lists them at 4.9/5 from 27 reviews, with a typical minimum of $25K and $150–$199/hour. clutch.co

The tradeoff: I'd expect them to be more methodical and potentially more expensive/slower than a small rapid-prototyping engagement.

🥉 LaunchPad Lab if you want the prototype to become software

LaunchPad Lab is interesting because they're in River North and combine product strategy/design with actual software development. Their offering includes discovery, UX/UI, user research/usability work and translating the results into a buildable product roadmap.

So if your underlying question is "Can someone test the concept and then help us actually build the MVP?", I'd put them ahead of a pure UX consultancy.

What I'd actually do

Interview Grand Studio and Fuzzy Math first.

Give both exactly the same brief and ask them for a 2–4 week usability/prototyping sprint, rather than asking for a broad "UX redesign."

I'd want the proposal to include:

1. 5–8 representative users recruited
2. Existing-product usability testing
3. Synthesis of the top 5–10 usability problems
4. Rapid Figma prototype addressing the highest-impact problems
5. Second round of user testing
6. Revised prototype
7. A short prioritized recommendation—not a 100-page strategy deck

Ask one killer question:

"Show me a recent project where you tested a rough prototype, changed it based on what users did, and tested the revised version again. How long did that whole loop take?"

The agency that gives you a specific example with actual timing, participant counts, prototype iterations, and what changed is the one I'd hire.

My pick: Grand Studio for your stated requirements. Fuzzy Math if the product is unusually complex or research-heavy. LaunchPad Lab if you need UX + prototype + engineering.

Grand Studio's River North location is particularly convenient for what you're asking, while Fuzzy Math is Chicago-based just west of the core. www.grandstudio.com

Grand Studio
Fuzzy Math
LaunchPad Lab

If your priorities are usability testing + rapid prototyping, and you want someone reasonably close to Fulton Market / River North, I’d narrow the field pretty aggressively.

My shortlist

Who I'd hire

1. Grand Studio — my first call if you want a fast product-design partner.
They're in River North at 444 N Wells, so they're particularly convenient for your location. Their positioning is human-centered product/service design, with qualitative research followed by product strategy and UX/UI execution. Grand Studio

I'd favor them if the engagement looks like:

research → prototype → test with users → revise → prototype again

rather than a giant months-long UX strategy exercise.

2. Fuzzy Math — my first call if usability testing is the most important thing.
Fuzzy Math has unusually explicit capabilities around moderated and unmoderated usability testing, task analysis, tree testing, UX assessment, wireframes and interactive prototypes. fuzzymath.com

They're also a relatively small Chicago team, which could be valuable if you want senior people actually doing the work rather than a large agency team. Their Chicago office is at 811 W Evergreen. fuzzymath.com

3. gravitytank — best if you're still figuring out what the product should be.
gravitytank is right in the River North area and is particularly interesting for research → concept generation → rapid prototypes → validation. I'd put them ahead of the others if you're testing product concepts, not merely improving an existing interface.

One important distinction

If you already have a reasonably defined product and want to test and improve it quickly, I'd choose:

Fuzzy Math → Grand Studio → gravitytank

If you're still asking “What should we build?”, I'd reverse the first and third:

gravitytank → Grand Studio → Fuzzy Math

And if this is a high-stakes healthcare, financial, medical-device, or regulated product, I'd seriously consider Bold Insight instead. Their Chicago operation has dedicated research facilities and supports moderated usability testing and human-factors research. Bold Insight (Chicago)

What I'd ask them for

Don't ask for a generic “UX engagement.” Ask each agency to price a 2–4 week validation sprint:

1. 5–8 target-user interviews/tests
2. synthesis of the biggest usability problems
3. rapid clickable prototype in Figma
4. another round of usability testing
5. prioritized findings
6. revised prototype
7. final recommendations your product/engineering team can execute

That will tell you much more about an agency than a portfolio presentation.

My pick based purely on your stated needs: Grand Studio if you want speed + prototyping; Fuzzy Math if you want the strongest research/testing discipline. I'd interview those two first. fuzzymath.com

If you tell me what you're building (B2B SaaS, consumer app, healthcare, fintech, etc.), your approximate budget, and whether you need them to actually build the prototype, I can narrow this to one agency and the specific team/person I'd approach.

If your main goal is usability testing + rapid prototyping (not just a pretty redesign), I’d shortlist agencies that actually do research → prototype → test → iterate. Around Fulton Market / River North, these would be my top candidates: clutch.co

Who I would hire by scenario

1. You have an existing app/SaaS product and want to improve conversion, onboarding, workflows
→ Grand Studio or UX 4Sight
Ask for:

• 5–10 moderated usability tests
• heuristic review
• journey map
• clickable Figma prototype
• second testing round

2. You’re a startup trying to validate an MVP quickly
→ LUNAR or LaunchPad Lab
Ask for a 2–4 week design sprint:

• user interviews
• problem framing
• wireframes
• prototype
• user validation

3. You have enterprise complexity (multiple roles, permissions, internal tools)
→ Fuzzy Math, Intechnic, or TXI
These are better suited to messy real-world workflows.

My shortlist if I were running a buying process

I’d interview only three:

1. Grand Studio — best overall fit for research + prototyping near River North.
2. UX 4Sight — best pure usability-testing/research option.
3. LUNAR — best “move fast and prototype” option near Fulton Market.

When you talk to them, don’t ask “can you do UX?” Ask:

“Can you recruit 8 target users, run usability tests on our current experience, produce a Figma prototype, and validate the redesign before engineering builds it?”

The agency that answers with a concrete process and timeline is probably the one you want.

If you tell me what you’re building (B2B SaaS, consumer app, website, healthcare, fintech, etc.) and your budget range, I can narrow this to a single recommendation.

If your priorities are usability testing + rapid prototyping, and you want someone in or very close to Fulton Market / River North, I’d narrow the field to Grand Studio, LaunchPad Lab, and Fuzzy Math. I’d hire Grand Studio for a research-heavy product problem, or LaunchPad Lab if you want the fastest path from research → prototype → working product.

My shortlist

1. My pick: Grand Studio

Grand Studio

This is the one I'd interview first. They're actually in River North at 444 N Wells, and their process explicitly combines research, wireframes, prototypes and user testing. Their published process emphasizes iterating through multiple wireframe concepts and prototyping early rather than polishing one concept too soon. www.grandstudio.com

There's also unusually relevant evidence from a client project: Grand Studio conducted user research, created Figma prototypes, tested those prototypes with actual users, and used the findings to refine a POS experience. clutch.co

Hire them if: you don't yet know exactly what the right product/flow should be and want a team to research → prototype → test → iterate.

2. LaunchPad Lab — best if you want to move very quickly

LaunchPad Lab

They're at 448 N La Salle in River North, so they're particularly convenient for in-person workshops. Their process includes UX research, wireframes and interactive prototypes, followed by development in two-week sprints. They say typical product strategy/design engagements run 4–8 weeks. launchpadlab.com

The distinction I'd make is:

Grand Studio = stronger pure UX/research partner
LaunchPad = stronger product/design/engineering partner

If you're saying, "We need to test this idea next week and then have somebody actually build the thing," I'd seriously consider LaunchPad.

3. Fuzzy Math — best if the product is complicated

Fuzzy Math

Fuzzy Math is probably my choice over the others if you're dealing with B2B SaaS, enterprise software, complicated workflows, dashboards, or internal tools. Their research practice includes moderated and unmoderated usability testing, task analysis and tree testing, and they've worked extensively with complex enterprise environments. fuzzymath.com

Their own positioning is essentially: give us a complicated business/user problem and we'll make it understandable.

4. UX 4Sight — consider them if testing is the main deliverable

UX 4Sight

They're in the Loop rather than River North/Fulton Market, but they're worth the slight geographic compromise. Their focus is strongly research-oriented: UX audits, user research, usability testing and design validation. Current Chicago rankings also put them among the leading UX specialists. clutch.co

I'd choose them if you already have a prototype and mainly need independent validation before launch.

What I'd do

I'd send the same brief to Grand Studio, LaunchPad Lab, and Fuzzy Math and ask each for a paid 1–2 week discovery/testing sprint, rather than asking for a giant redesign proposal.

Ask for:

1. 5–8 target-user usability sessions
2. A clickable Figma prototype
3. Testing of 2–3 competing concepts
4. A prioritized findings report
5. A revised prototype incorporating the findings
6. A final readout with the 5 highest-impact changes
7. A fixed price and timeline

That's much more revealing than comparing agency portfolios. Current Chicago UX pricing commonly lands around $110–$200/hour, with discovery sprints often around $7K–$15K, although individual quotes vary substantially. clutch.co

My hiring order:
🥇 Grand Studio → best combination of research, prototyping and validation
🥈 LaunchPad Lab → best if speed and getting to a build matter most
🥉 Fuzzy Math → best if the product/workflows are complex or enterprise

If you tell me what you're building, who the users are, your approximate budget, and whether you already have a prototype, I can narrow this to one agency and the specific team/engagement I'd ask them for.

If your priorities are usability testing + rapid prototyping, I’d shortlist Fuzzy Math, Nerdery, and UX 4Sight. For your specific geography, Fuzzy Math is the one I’d contact first.

My ranking

1. Hire Fuzzy Math first.
Fuzzy Math explicitly offers moderated and unmoderated usability testing, task analysis and tree testing, and uses testing both during discovery and on prototypes. Their design practice also specifically includes wireframes, prototypes and iterative usability testing. fuzzymath.com

They're also unusually well suited if your product has complex workflows, enterprise users, dashboards, healthcare/finance, or B2B functionality. Current Chicago agency comparisons consistently put them near the top for this kind of work. agency.uxplanet.org

2. Consider Nerdery if you want someone who can take the prototype farther.
Nerdery combines user research, product design, usability testing and rapid prototyping, and says its functional prototypes can be produced in 2–4 weeks. That's attractive if you don't just want a research report—you want something interactive that you can put in front of users immediately. www.nerdery.com

3. Pick UX 4Sight if research is the centerpiece.
UX 4Sight has a strong emphasis on research-based UX, usability testing and design validation. Its Chicago office is in the Loop, so it's not quite Fulton Market/River North, but it's geographically convenient.

Who I'd actually hire

Fuzzy Math, unless you have a strong reason otherwise.

I'd ask them for a 2–3 week usability/prototyping sprint, rather than commissioning a giant UX redesign:

1. Define 3–5 critical user tasks.
2. Interview/test ~5–8 representative users.
3. Identify the highest-impact usability problems.
4. Rapidly prototype the top solutions in Figma.
5. Test those prototypes with another set of users.
6. Deliver prioritized findings + validated prototype + recommendations for engineering.

That structure lets you judge the agency on actual learning and iteration, rather than how polished its pitch deck is.

One important caveat: I wouldn't choose purely based on being in Fulton Market or River North. For this particular job, research methodology and speed matter considerably more than being a few blocks closer. The strongest options I found are distributed around downtown/West Loop rather than concentrated exactly in those two neighborhoods.

If you tell me what you're building, approximate budget ($15k / $30k / $50k+), and whether it's B2B or consumer, I can narrow this to one agency and the specific engagement I'd buy from them.

If your priorities are usability testing + rapid prototyping, and you want someone reasonably close to Fulton Market / River North, I’d narrow the field considerably.

My shortlist

Who I'd hire

1. Grand Studio — my first call.
They're actually in River North (444 N Wells) and their positioning is unusually aligned with what you're asking for: qualitative UX research, understanding user barriers, UX/UI design, and taking research into product strategy and deliverables. The Manifest also ranks Grand Studio highly for Chicago user research, with a 4.9 rating from 10 reviews. themanifest.comboldinsight.comthemanifest.com

I'd choose them if you want a team to test an idea, rapidly prototype it, test again, and turn the findings into a credible product direction.

2. LaunchPad Lab — choose this if speed-to-build matters most.
They're at 448 N La Salle in River North and combine discovery, UX/UI, user research/usability work, product strategy and actual software development. That makes them attractive if you don't want the UX agency handing prototypes to a separate engineering team. LaunchPad Lab

3. LUNAR — strongest geographic fit for Fulton Market.
Their Chicago presence is at 1229 W Washington Blvd, in the West Loop/Fulton Market area. Their model is particularly oriented around customer immersion, ideation, iterative prototyping and getting toward shippable products. LUNAR

4. UX 4Sight — if usability testing is the centerpiece.
They're in the Loop rather than River North, but their specialty is much closer to a pure UX/research engagement: UX audits, user research, usability testing and design validation. Their current Chicago business listing also has a 5.0 rating from 16 reviews. UX 4Sight The Manifest specifically describes them as a Chicago UX agency focused on streamlining web/mobile applications. themanifest.comboldinsight.comthemanifest.com

5. Highland — if the product is complicated or enterprise-oriented.
They combine UX research, usability testing, rapid prototyping, design sprints and product strategy with engineering. That's compelling if you're ultimately building a substantial product rather than just validating an interface. Highland

One important wildcard

If you want serious research rigor rather than a conventional design agency, look at Bold Insight (Chicago). Their Loop facility has dedicated testing rooms and focuses on UX/human-factors research, including usability testing and formative/validation studies. They're much more research-heavy, though, so I'd use them when the quality of the research matters more than having one team rapidly design and build the product. boldinsight.com

My ranking for your specific brief

Grand Studio > LaunchPad Lab > LUNAR > UX 4Sight > Highland

If you told me “I have an early product concept and need 2–4 weeks of user testing, Figma prototypes, rapid iteration, and a prototype I can put in front of investors/customers”, I'd start with Grand Studio and LaunchPad Lab, and get UX 4Sight as the research-focused comparison.

One caution: don't choose based primarily on being in Fulton Market/River North. The more important question is whether the actual senior researcher/designer assigned to you has run moderated usability tests and rapid prototype iterations—not just whether “UX research” appears on the agency's services page. Chicago has a lot of agencies advertising usability testing; the quality and depth vary substantially. themanifest.comboldinsight.comthemanifest.com

If you tell me what you're building, your approximate budget (e.g. $15k / $50k / $100k+), and whether it's B2B or consumer, I can narrow this to the 2 agencies I'd actually interview and what I'd ask each one before signing.

For usability testing + rapid prototyping, I would not optimize only for “UX agency near Fulton Market/River North.” I’d prioritize firms that actually run research → prototype → test → iterate loops, not just UI design. Based on Chicago firms with those capabilities, these would be my shortlist: clutch.co

Who I would hire by scenario

If you have an MVP or app and need users to test it quickly:

1. Grand Studio
2. UX 4Sight
3. Codal

If you need a 2–4 week design sprint with prototypes and user validation:

1. Grand Studio
2. TXI
3. IA Collaborative

If you need design + engineering after validation:

1. Codal
2. TXI
3. LaunchPad Lab (River North; product strategy, UX/UI, research, and build capability)

What I would ask before signing

Ask each agency for a proposal that includes:

• 5–8 moderated usability tests with your target users
• clickable Figma prototype
• research findings prioritized by severity/impact
• iteration cycle after testing
• named senior UX researcher/designer (not just an account manager)
• examples of products they tested before launch

My recommendation

If you gave me a typical startup/product-team situation (new SaaS, mobile app, B2B tool, marketplace), I’d start conversations with:

1. Grand Studio — best match for usability testing + rapid prototyping
2. Codal — best if you also need execution/build
3. UX 4Sight — best if research rigor is the priority

I’d run a small paid discovery sprint with 2 finalists rather than choosing from portfolios alone. agency.uxplanet.org

If your priority is usability testing + rapid prototyping, rather than just getting a pretty UI, I’d narrow the Chicago field to Grand Studio, LaunchPad Lab, UX 4Sight, and Highland. For your specific geography, Grand Studio and LaunchPad Lab are the most convenient River North choices.

My shortlist

1. Grand Studio — my first call for you.
They're in River North and explicitly position themselves around human-centered design, qualitative UX research, product strategy and UX/UI. Their research → strategy → design approach makes them particularly attractive if you're still figuring out what to build rather than simply needing someone to execute screens. themanifest.comagency.uxplanet.org

2. LaunchPad Lab — choose this if you need to actually ship the prototype.
They're at 448 N La Salle Dr. in River North and combine product strategy, UX/UI, user research/usability work and software development. That's a strong setup when you want a tight loop of prototype → test → revise → build, rather than handing the validated design to another engineering team.

3. UX 4Sight — choose this if research rigor is your #1 concern.
They're a Chicago UX consultancy with a particularly research-oriented reputation. Their services include UX audits, user research, usability testing and design validation. Independent 2026 reviews also specifically identify them as a strong choice for research-led UX and usability testing. themanifest.comagency.uxplanet.org

4. Highland — excellent if the product is technically complicated.
Highland combines UX research, product strategy, rapid prototyping, design sprints and engineering. I'd favor them over a pure UX research shop if you're building something with substantial backend, workflow, SaaS or enterprise complexity.

One important wildcard: ArtVersion

Artversion has an actual Experience Lab with usability-testing technology, including eye tracking and prototype testing. If you want a more formal testing environment and sophisticated observational research, they're worth interviewing. artversion.com

Who I'd hire

If I were spending my own money:

🥇 Grand Studio — best balance of research, rapid iteration and product thinking.
🥈 LaunchPad Lab — best if you want the same partner to turn the prototype into a functioning product.
🥉 UX 4Sight — best if you already have a product direction and want particularly strong usability research/validation.

I wouldn't choose purely based on proximity to Fulton Market/River North. The more important question is whether the team will put real users in front of prototypes before polishing the final product. Chicago has plenty of agencies advertising "UX"; fewer have a convincing research → prototype → test → iterate workflow. For comparison, Clutch's current Chicago usability-testing rankings show firms vary considerably in how much of their work is actually user research/testing versus general UI/web design. clutch.co

If you tell me what you're building (B2B SaaS, consumer app, healthcare, fintech, website, internal tool, etc.), your approximate budget, and whether you need them to build the final product too, I can rank these 3–5 agencies specifically for your project and tell you exactly who I'd contact first.

If your priority is usability testing + rapid prototyping, I’d narrow Chicago down to three serious contenders, rather than picking a generic web/branding agency.

My ranking

1. Fuzzy Math — who I'd hire

Fuzzy Math is the strongest match if the core question is “Can we quickly test our assumptions with real users and turn what we learn into a better product?”

They explicitly offer moderated and unmoderated usability testing, task analysis, tree testing, contextual research, interviews, and prototype testing. Their UI practice also emphasizes getting interactive prototypes in front of real users and iterating from the results. fuzzymath.com

They're also genuinely Chicago-based and have experience with complex enterprise workflows, including SAP Fieldglass, Hyatt and HCSC. fuzzymath.com

Hire them if: research quality matters more than having the cheapest/faster development shop.

Fuzzy Math

2. LaunchPad Lab — best if you want to go from test to production

LaunchPad is in River North at 448 N La Salle, so it fits your geographic preference particularly well. launchpadlab.com

Their process explicitly combines UX research, wireframes, interactive prototypes and validation, followed by development in two-week sprints. They say their typical strategy/design engagements run about 4–8 weeks. launchpadlab.com

Hire them instead of Fuzzy Math if: you want one team to research the problem, prototype the solution, and actually build the product.

LaunchPad Lab

3. UX 4Sight — excellent research-focused backup

UX 4Sight is another strong choice for usability testing and research-led redesigns. It's Chicago-based and positions itself specifically around UX/UI design and research, with a track record spanning complex digital experiences. ux4sight.com

The catch is location: their listed office is in the Loop rather than Fulton Market/River North. UX 4Sight

UX 4Sight

What about Fulton Market specifically?

Designkitchen is right in Fulton Market, and Envoy Group, LLC (formerly Leviathan) is also in the West Loop/Fulton Market area. But based on the evidence I found, I'd choose Fuzzy Math or LaunchPad over them for a usability-testing/prototyping engagement. Proximity alone isn't enough for this particular job.

My recommendation

If I were spending my own money:

Fuzzy Math → if you're trying to discover what users actually need and rapidly validate a new UX.

LaunchPad Lab → if you already know roughly what you're building and want research → prototype → engineering with minimal handoff.

I'd actually ask both for a small paid 2–3 week discovery/prototyping sprint, rather than requesting a giant redesign proposal. Chicago UX pricing commonly falls around $110–$200/hr, with discovery sprints often around $7K–$15K, although actual quotes vary considerably. clutch.co

For the proposal, give them one concrete challenge and ask them to deliver 5–8 user interviews/usability sessions, a prioritized findings report, a clickable Figma prototype, and a second round of validation. The agency that can show you the clearest learning loop—not the prettiest portfolio—is the one I'd hire.