ChatGPT answers, unedited

For a small B2B parts supplier with a handful of wholesale customers, I’d focus less on “B2B ecommerce” broadly and more on how cleanly the platform handles negotiated, customer-by-customer SKU pricing.

My ranking

BigCommerce is probably the one I'd investigate first. Its B2B functionality has native price lists that can customize pricing down to the individual SKU and assign those prices to individual wholesale accounts or customer groups. www.bigcommerce.comdocs.bigcommerce.com

That's a particularly good model for parts distribution. For example:

• Customer A → SKU 123 → $8.40
• Customer B → SKU 123 → $7.95
• Customer C → SKU 123 → $9.10
• Customer A → SKU 456 → $14.25
• Everyone else → standard price

You can also combine customer-specific pricing with customer groups, catalogs, quantity breaks, and B2B purchasing workflows. docs.bigcommerce.com

Shopify is a very close second

Shopify B2B has gotten considerably better for this use case. Its B2B catalogs allow you to assign products and pricing to particular companies/company locations, including fixed prices and volume pricing. help.shopify.com

The catch is that the exact pricing behavior matters. For example, when multiple catalogs apply to a company, Shopify has rules around which price wins; you don't want to accidentally create overlapping catalogs and expose a lower price than intended. help.shopify.com

For your business, I'd choose based on this

Pick BigCommerce if:

• You have 5–100-ish wholesale accounts.
• Pricing is negotiated per customer and/or per SKU.
• You sell lots of parts/SKUs.
• Customers need login-based pricing.
• You want B2B functionality without building a custom system.

Pick Shopify if:

• You also want a strong consumer/DTC storefront.
• Your pricing can mostly be organized into catalogs/customer tiers.
• Ease of administration and the Shopify ecosystem are priorities.
• You expect to add other sales channels later.

Don't start with Adobe Commerce unless you already have substantial operational complexity. It is powerful—shared catalogs, company structures, quote workflows, etc.—but it's generally overkill for a small supplier. www.shopify.com

One thing I'd check before choosing

For a parts supplier, customer-specific pricing isn't the only important question. I'd specifically test these five scenarios in a demo:

1. Customer A gets a unique price for 300 individual SKUs
2. Customer B gets a different price on those same SKUs
3. New SKU → automatically gets Customer B's standard discount
4. Customer A has a special negotiated price on just 10 SKUs
5. Customer logs in → sees only their price, not MSRP/another customer's price

If you tell me roughly how many SKUs you have, how many wholesale customers, and whether each customer has a mostly unique price list or just a discount percentage (e.g. “20% off list”), I can tell you which platform I'd pick and what the simplest setup would be.

For a small B2B parts supplier with a handful of wholesale customers, I’d prioritize customer-specific price lists, account-level catalogs, and easy reordering over the heavier enterprise B2B platforms.

My shortlist

1. BigCommerce — probably the best fit

BigCommerce is particularly strong here because its price lists can set prices down to the individual SKU and assign them to specific customer groups or individual wholesale accounts. Its company accounts can also be associated with those customer groups. BigCommerce BigCommerce

So you could have:

• Customer A → their negotiated price list
• Customer B → a different price list
• Customer C → another price list
• New wholesale customer → standard wholesale pricing

And the customer sees the appropriate prices after logging in.

For a parts business, that's a very natural model. You don't have to create a separate storefront for every customer.

bigcommerce.com

2. Shopify — excellent if simplicity matters

Shopify has substantially improved its native B2B functionality in 2026. Even non-Plus plans now have company profiles, custom catalogs, tailored pricing, volume discounts, quantity rules and payment terms; Plus removes the catalog limitations and allows unlimited catalogs with direct assignment to companies/locations. Shopify Help Center Shopify

So if you have, say, 10–50 wholesale accounts with relatively straightforward negotiated pricing, Shopify could be the easiest system to operate.

The distinction I'd make is:

BigCommerce: "We're primarily a B2B distributor and need sophisticated pricing."

Shopify: "We're a straightforward wholesale business and want the easiest overall ecommerce platform."

shopify.com

What I'd choose for a parts supplier

If your pricing looks something like:

SKU 123 → Customer A pays $14.20, Customer B pays $12.80, Customer C pays $15.10

I'd lean BigCommerce.

If it looks more like:

All wholesale customers get 20% off, with occasional special prices

I'd lean Shopify.

If pricing is actually calculated from a complicated ERP/customer contract—e.g. customer + quantity + manufacturer + region + contract + current cost—you should look at something more B2B-specific. SAP Commerce, for example, supports negotiated customer pricing at multiple organizational levels and can retrieve pricing directly from an ERP backend. SAP Help Portal SAP Help Portal

One thing I'd investigate before choosing

For your business, the ERP/accounting system may matter more than the storefront.

If you tell me:

1. roughly how many SKUs you have,
2. how many wholesale customers,
3. what you're using for inventory/accounting today (QuickBooks, NetSuite, SAP, etc.), and
4. whether each customer has a completely different price for each part or just different discount tiers,

I can narrow this down to the 2–3 platforms I'd actually consider, including approximate cost and how I'd structure the customer pricing.

2. Shopify — excellent if simplicity matters

Shopify has substantially improved its native B2B functionality in 2026. Even non-Plus plans now have company profiles, custom catalogs, tailored pricing, volume discounts, quantity rules and payment terms; Plus removes the catalog limitations and allows unlimited catalogs with direct assignment to companies/locations. Shopify Help Center Shopify

So if you have, say, 10–50 wholesale accounts with relatively straightforward negotiated pricing, Shopify could be the easiest system to operate.

The distinction I'd make is:

BigCommerce: "We're primarily a B2B distributor and need sophisticated pricing."

Shopify: "We're a straightforward wholesale business and want the easiest overall ecommerce platform."

shopify.com

What I'd choose for a parts supplier

If your pricing looks something like:

SKU 123 → Customer A pays $14.20, Customer B pays $12.80, Customer C pays $15.10

I'd lean BigCommerce.

If it looks more like:

All wholesale customers get 20% off, with occasional special prices

I'd lean Shopify.

If pricing is actually calculated from a complicated ERP/customer contract—e.g. customer + quantity + manufacturer + region + contract + current cost—you should look at something more B2B-specific. SAP Commerce, for example, supports negotiated customer pricing at multiple organizational levels and can retrieve pricing directly from an ERP backend.

One thing I'd investigate before choosing

For your business, the ERP/accounting system may matter more than the storefront.

If you tell me:

For a small B2B parts supplier with a handful of wholesale accounts, BigCommerce would be my first choice if customer-specific pricing is the main requirement.

My ranking

Why I'd lean BigCommerce

BigCommerce has a particularly good pricing model for your situation. Its Price Lists can set prices down to the individual SKU and can be assigned either to a customer group or to a single wholesale account. BigCommerce BigCommerce

So you could have something like:

• Customer A → their negotiated price list
• Customer B → a different price list
• Customer C → another negotiated list
• New wholesale customer → standard wholesale pricing
• Retail visitor → normal retail price

The important distinction is that you're not forced into simply saying "all wholesale customers get 30% off." You can maintain actual negotiated prices per SKU, which is often what parts/distribution businesses need.

It also supports customer groups, volume pricing, reordering and other wholesale-oriented workflows. BigCommerce

Shopify is good, but I'd choose it for a different reason

shopify.com has substantially improved its native B2B capabilities. Its B2B catalogs let you specify products and prices for particular companies/company locations, and it supports volume pricing and purchasing rules. Shopify Help Center Shopify

I'd choose Shopify if you also want a really strong consumer-facing storefront/brand site and B2B is one part of the business.

For a pure parts wholesaler, though, BigCommerce's pricing architecture feels more naturally aligned with the problem.

One important question

The answer changes quite a bit depending on how your pricing works.

If you mean:

"Customer A gets $12.40 for SKU 123, Customer B gets $11.75, Customer C gets $13.10, and these prices are negotiated individually."

BigCommerce is very compelling.

If instead it's:

"Customer A gets 20% off, Customer B gets 25% off, and large orders get additional quantity breaks."

Then Shopify, BigCommerce, and even WooCommerce can all handle it fairly well.

And if you have an existing ERP/accounting system containing the customer-specific prices, I'd prioritize the ecommerce platform's integration capabilities over the storefront itself.

If you tell me (1) roughly how many SKUs you have, (2) how many wholesale customers, (3) whether every customer has different SKU prices, and (4) what accounting/ERP system you use, I can narrow this down to the best 2–3 options for your exact setup.

For a small B2B parts supplier with a handful of wholesale accounts, I’d prioritize customer-specific SKU pricing, customer-specific product visibility, and easy administration over a huge enterprise feature set.

My shortlist

1. BigCommerce — my first choice for your situation

BigCommerce has native Price Lists that can assign different SKU-level prices to customer groups, and its B2B offering specifically supports assigning price lists to individual wholesale accounts. docs.bigcommerce.com

That maps very well to something like:

• Customer A → Part 123 = $8.40
• Customer B → Part 123 = $7.95
• Customer C → Part 123 = $9.10
• Everyone else → $11.50

You can also maintain different product availability and customer groups without building the whole thing around custom development.

BigCommerce B2B wholesale overview

2. Shopify — probably the easiest to operate

Shopify has significantly improved its native B2B capabilities in 2026. Basic/Grow/Advanced now include B2B catalogs, with up to three active catalogs, while Plus allows unlimited catalogs and direct assignment to companies/company locations. help.shopify.com

That's attractive if you have, say, 5–20 wholesale customers with relatively straightforward pricing tiers. The downside is that if every customer needs a genuinely unique price book, BigCommerce's price-list model is more naturally suited to that.

Shopify B2B

3. Adobe Commerce — extremely powerful, but probably overkill

Adobe Commerce B2B has perhaps the strongest native model for complicated wholesale businesses: custom shared catalogs can have custom prices for individual companies, along with product/category visibility and company accounts. experienceleague.adobe.com

I'd consider it if you have hundreds/thousands of customers, complicated contracts, multiple price structures, ERP integration, negotiated quotes, etc. For "a few wholesale customers," I'd generally avoid the additional complexity.

What I'd choose

For a small parts supplier with a few wholesale accounts, I'd rank them:

BigCommerce > Shopify > Adobe Commerce

The key question, though, is how your pricing actually works. If you tell me something like:

"I have 8 customers, each gets their own negotiated price on 200–500 SKUs, plus quantity breaks, and they currently order by email."

I can tell you which platform I'd use, what it would cost roughly, and how I'd structure the customer/price lists.

For your situation—small B2B parts supplier, a handful of wholesale accounts, and customer-specific negotiated pricing—I’d shortlist BigCommerce and Shopify, with BigCommerce B2B Edition probably the better fit.

My ranking

Why I'd lean BigCommerce: its B2B system has price lists that can go down to individual SKUs, and those price lists can be assigned to individual wholesale accounts or groups. Customers can therefore log in and see their prices without creating duplicate products or relying on discount codes. www.bigcommerce.com

That's particularly well suited to parts distribution. For example:

• Customer A → $8.42 for Part #123
• Customer B → $7.95 for Part #123
• Customer C → $7.25 for Part #123
• Everyone else → $11.99

You can maintain those as customer/company pricing rather than creating four versions of the product.

BigCommerce also supports company accounts, buyer permissions, customer groups, catalogs, bulk pricing, and B2B ordering workflows. docs.bigcommerce.com

Shopify is a very close second

Shopify B2B now has company-specific catalogs and price lists, including pricing at the company/location level, so it absolutely can handle your use case. www.shopify.com

I'd pick Shopify instead if you also care heavily about:

• a polished consumer-facing storefront
• Shopify POS
• marketing/SEO ecosystem
• lots of third-party integrations
• potentially expanding from wholesale into DTC

One caveat: Shopify's more advanced B2B capabilities are increasingly tied to its higher-tier offerings, whereas BigCommerce is more naturally oriented around B2B functionality. Shopify's current published Plus pricing starts around $2,300/month on a 3-year term. www.shopify.com

For a small parts supplier, I'd actually evaluate one thing before choosing

How many unique prices do you have?

If you have, say, 10 wholesale customers × 2,000 SKUs, and every customer has a negotiated price on most products, that's a very different requirement from:

"We have 5 wholesale tiers and most customers fall into one of them."

BigCommerce is particularly attractive for the first scenario because of its SKU-level price lists. www.bigcommerce.com

If you tell me (1) roughly how many SKUs you have, (2) how many wholesale customers, (3) whether each customer has unique pricing or pricing tiers, and (4) what accounting/ERP system you use, I can narrow this down to the best 2–3 options and tell you what I'd choose.

For a small B2B parts supplier selling to a handful of wholesale customers, I’d prioritize platforms that can do account-level price lists, customer groups, hidden catalogs, and easy reordering without forcing you into an enterprise implementation.

My shortlist:

www.bigcommerce.comwww.shopify.com

My likely recommendation for your situation

1. BigCommerce B2B Edition — best overall fit if pricing complexity matters

• Create a customer account for each wholesaler
• Assign each account a custom price list
• Give different customers different discounts by SKU
• Support wholesale catalogs and account-specific buying experiences

BigCommerce specifically supports customer groups and SKU-level price lists, which maps well to parts suppliers where Customer A might pay different contract pricing than Customer B. www.bigcommerce.com

2. WooCommerce — best if you have only a few wholesale accounts
If you have, say:

• 10–50 wholesale customers
• a few thousand SKUs
• someone comfortable managing WordPress

…it can be very cost-effective. You can add wholesale pricing plugins and customize almost anything, but you’ll own more of the maintenance burden. www.afcommerce.com

3. Shopify — best if you want wholesale + consumer sales
If you sell parts both to businesses and directly to consumers, Shopify becomes more attractive. Its B2B tools support things like company profiles, custom catalogs, and pricing, but many advanced wholesale scenarios are aimed at higher-tier Shopify plans. www.bigcommerce.comwww.shopify.com

Features I’d consider mandatory for a parts supplier

Whatever you choose, make sure it handles:

• Customer-specific price lists (not just coupon codes)
• Contract pricing by SKU
• Customer login before showing prices
• Quick order / SKU entry
• Saved reorder lists
• Multiple ship-to addresses
• Minimum quantities or case packs
• ERP/accounting integration (if you use one)
• Quote requests for unusual orders

For a small supplier with a few wholesale customers, I’d probably choose:

• BigCommerce if your negotiated pricing is central to the business
• WooCommerce if keeping costs low matters most
• Shopify if you expect a mixed wholesale + retail model

A few details would change the recommendation: roughly how many SKUs do you carry, how many wholesale customers need unique pricing, and are your prices maintained in an ERP/accounting system (QuickBooks, NetSuite, Epicor, etc.)?

For a small B2B parts supplier with a handful of wholesale customers, I’d prioritize customer-specific price lists, account logins, quick reordering, and low admin overhead over general ecommerce features.

My shortlist:

www.bigcommerce.comwww.shopify.com

For your situation, I’d rank them:

1. BigCommerce — likely the best overall fit

If you have, for example:

• Customer A gets 15% off all bearings
• Customer B has negotiated prices on 200 SKUs
• Customer C sees only certain product categories
• Each customer needs their own reorder history

BigCommerce handles this kind of setup more naturally. Its B2B functionality includes customer groups and price lists that can be assigned to specific accounts or groups. www.bigcommerce.com

2. WooCommerce — best if you are very small and technical

If you have only 5–20 wholesale accounts and orders are still partly handled by phone/email, WooCommerce can work well. You can add wholesale pricing plugins and keep costs down. The tradeoff is that you’ll be managing more pieces yourself.

3. Shopify — best if you might add online retail later

Shopify’s B2B tools are much better than they used to be: company accounts, custom pricing, catalogs, and payment terms are supported. www.bigcommerce.comwww.shopify.com But for a pure distributor workflow, you may find yourself paying for features designed around a larger operation.

A few questions would change the recommendation:

1. How many wholesale customers do you expect in 2 years (10, 100, 1,000+)?
2. Are prices negotiated per customer, or are they mostly customer tiers (dealer/distributor levels)?
3. Do you need integration with inventory/accounting software (QuickBooks, NetSuite, Epicor, etc.)?
4. Do customers need to see stock levels and place repeat orders themselves?

For a small B2B parts supplier with a handful of wholesale accounts, I’d put BigCommerce first, especially if each customer has negotiated SKU-level pricing.

My ranking

Why BigCommerce stands out: its native Customer Groups + Price Lists model is almost exactly what you described. Price Lists can specify prices at the variant/SKU level and be assigned to customer groups; BigCommerce also supports assigning pricing structures to individual company accounts. docs.bigcommerce.com

So you could have, for example:

• Customer A → 12,000 SKUs with their negotiated prices
• Customer B → a different price list
• Customer C → standard wholesale pricing
• Retail/customer → normal website pricing

Customers log in and automatically see their prices, rather than you having to rely on coupon codes or manual order adjustments. BigCommerce specifically describes its wholesale functionality as supporting unique SKU-level pricing for individual clients. www.bigcommerce.com

BigCommerce B2B/Wholesale

Shopify is worth considering

Shopify has gotten considerably better for B2B. As of 2026, its Basic/Grow/Advanced plans include B2B catalogs, companies, payment terms, volume pricing, etc. However, directly assigning a unique catalog to an individual company/location requires Shopify Plus; the lower plans are limited to three active catalogs across B2B markets. help.shopify.com

So if your pricing is mostly:

"Wholesale customers get 25% off"

Shopify is attractive.

If it's:

"Customer A pays $14.27 for SKU 1234, $8.91 for SKU 5678, while Customer B pays completely different negotiated prices"

I'd favor BigCommerce.

Shopify B2B pricing/catalogs

Adobe Commerce

Adobe Commerce has arguably the deepest native B2B pricing model: shared catalogs with custom prices for different companies, customer groups, tier pricing, quotes, and more. experienceleague.adobe.com

But for a small supplier with only a few wholesale accounts, I'd consider it overkill unless your pricing/catalog/ERP requirements are unusually complicated.

What I'd choose for your situation

BigCommerce + customer-specific Price Lists would be my starting point.

The important question isn't really how many customers you have—it's how complicated the pricing is. If you tell me roughly:

1. number of SKUs,
2. number of wholesale customers,
3. whether every customer has different prices or you have 3–5 pricing tiers,
4. whether you need an ERP/accounting integration (QuickBooks, NetSuite, Sage, etc.), and
5. whether you also sell to consumers,

I can narrow it down to BigCommerce vs Shopify vs WooCommerce for your particular operation.

For a small B2B parts supplier with a handful of wholesale customers, the “best” ecommerce platform is usually the one that handles account-level pricing, customer groups, and negotiated catalogs without forcing you into an expensive enterprise build.

My shortlist:

www.bigcommerce.com

My likely recommendation for your situation

1. BigCommerce B2B Edition — best overall fit if wholesale is your main business

• Create a login for each customer.
• Assign each account its own pricing.
• Show different SKUs or catalogs by customer.
• Support bulk ordering and reorders.
• Avoid building custom pricing logic.

BigCommerce specifically supports customer groups and price lists that can be assigned to individual wholesale accounts or groups. www.bigcommerce.com

2. Shopify + B2B features — best if you also want a consumer-facing store
If you sell some parts retail or plan to build a brand site, Shopify is attractive. But for pure wholesale, you may end up adding apps or moving to Shopify Plus for more sophisticated workflows. www.bigcommerce.com

3. WooCommerce — best budget option
If you have:

• 20–200 wholesale customers
• simple negotiated pricing
• a technically capable person maintaining the site

WooCommerce can work well with B2B extensions. It is usually cheaper but less “set it and forget it.”

Features I’d prioritize for a parts supplier

Before choosing, make sure it supports:

• Customer-specific price lists (Customer A sees $8.50; Customer B sees $7.90)
• Contract pricing by SKU
• Quick order forms (part number entry is huge for B2B)
• CSV price updates
• Customer-specific catalogs
• Reorder lists
• Net terms / invoice workflows
• ERP/accounting integration if you use something like QuickBooks, NetSuite, Epicor, etc.

For a small supplier with only a few wholesale accounts, I would avoid Adobe Commerce unless your pricing rules are unusually complex. I’d usually choose BigCommerce if wholesale is the core business, or Shopify if you want wholesale + retail together. www.bigcommerce.com

A couple of details would change the recommendation:

1. Roughly how many SKUs/parts do you carry?
2. Do your customers each have negotiated prices by part number, or mostly a discount like “20% off everything”?
3. Are you currently using an ERP/accounting system (QuickBooks, NetSuite, Sage, Epicor, etc.)?

For a small B2B parts supplier with a handful of wholesale accounts, I’d prioritize platforms that make account-specific price lists a first-class feature rather than relying on apps.

My shortlist

For your particular situation, I'd lean toward BigCommerce or Shopify Plus rather than Adobe Commerce.

If pricing is the main thing

Adobe Commerce is arguably the strongest. Its B2B "Shared Catalogs" let you create custom catalogs with custom prices and assign them to specific companies. You can set individual fixed prices, percentage discounts, and quantity-based tier pricing. experienceleague.adobe.com

That's a very natural model for, say:

• Customer A → 15% off everything
• Customer B → negotiated prices on 75 specific SKUs
• Customer C → completely different prices + only sees certain parts
• Customer D → standard wholesale pricing + quantity breaks

The downside is complexity and cost. Adobe Commerce is powerful enough that it can be overkill for a small supplier.

Shopify Plus

Shopify's B2B system is particularly attractive if you want something easy for a small team to administer. Catalogs control both product availability and pricing, and on Plus you can have unlimited catalogs and assign them directly to companies/company locations. It also supports quantity rules and volume pricing. help.shopify.com

So you could have:

ABC Supply: catalog A → negotiated prices
XYZ Wholesale: catalog B → negotiated prices
Everyone else: catalog C → normal pricing

The catch is that Shopify Plus is a fairly substantial platform commitment. If you only have a few wholesale customers, I'd want to make sure the rest of the Shopify ecosystem is valuable to you too.

BigCommerce

I'd put BigCommerce B2B very high on the list for a parts distributor. It's worth evaluating if your business is more traditional wholesale/distribution than consumer retail.

What I'd choose

If I were setting this up for a small parts supplier:

1. BigCommerce — probably my first platform to investigate
2. Shopify Plus — best if ease of use and broader ecommerce capabilities matter
3. Adobe Commerce — best if pricing/catalog rules are unusually complicated
4. WooCommerce — attractive if keeping costs/control high is more important than having turnkey B2B functionality

One important distinction: "customer-specific pricing" can mean two very different things. If you mean each wholesale account has its own negotiated price for individual SKUs, rather than simply "Customer A gets 20% off," I'd evaluate the platforms specifically around SKU-level price lists, price imports, customer groups, quantity breaks, and ERP integration.

If you tell me roughly how many SKUs you have, how many wholesale customers, and whether prices are negotiated per-SKU or mostly percentage discounts, I can narrow this to the best 1–2 options for your business.

For a small B2B parts supplier with a handful of wholesale accounts, I’d put BigCommerce first, Shopify second, and Adobe Commerce/Magento third.

My ranking for your situation

BigCommerce is probably the sweet spot for you. Its B2B functionality has native price lists that can be assigned to individual wholesale accounts or customer groups, down to the SKU level. It also supports bulk pricing and customer-specific catalogs. www.bigcommerce.com

So you could have, for example:

• Customer A → SKU 123 = $8.40
• Customer B → SKU 123 = $7.95
• Customer C → SKU 123 = $9.10
• General website price → $12.00

…and the appropriate logged-in customer sees their negotiated price.

Shopify

Shopify is also quite good now. Its B2B catalogs let you customize products and pricing for specific companies, and Shopify Plus allows unlimited catalogs and direct assignment to company locations. help.shopify.com

The catch is that I'd choose Shopify mainly if you also care about having the broader Shopify ecosystem, integrations, polished storefront, etc. For a parts/wholesale-first business where pricing is the central issue, BigCommerce feels more naturally aligned.

Adobe Commerce

Adobe Commerce is arguably the most powerful of the three for this particular requirement. Its B2B Shared Catalogs are explicitly designed to provide custom pricing for different companies, and you can have company-specific catalogs, customer groups, tier pricing, quotes, and company accounts. experienceleague.adobe.com

But for only a few wholesale customers, I'd consider it overkill unless your pricing rules are unusually complicated.

The key question I'd use to choose

If your pricing looks like:

"Each wholesale customer has an agreed price for some/all SKUs, and they log in and place orders"

→ BigCommerce B2B.

If it's:

"We have 5–10 customers, each with hundreds/thousands of negotiated SKU prices, plus quantity breaks"

→ BigCommerce becomes an especially strong choice.

If it's:

"Every customer has a completely different catalog, contract pricing, quotes, approval workflows, multiple buyers, ERP integration, etc."

→ Adobe Commerce starts making more sense.

If you tell me roughly how many SKUs you have, how many wholesale customers, and whether each customer has a completely different price list or mostly a % discount, I can narrow it down considerably—and tell you what I'd actually deploy in your shoes.

For your situation—small B2B parts supplier, a handful of wholesale accounts, and negotiated customer-by-customer pricing—I’d narrow it to BigCommerce vs. Shopify.

My pick: BigCommerce

BigCommerce is probably the better fit if customer-specific pricing is the main requirement.

Its native Price Lists let you override pricing down to the SKU/variant level and assign those prices to customer groups. You can also have different price lists for different customers, while customers without an override fall back to the normal catalog price. docs.bigcommerce.comdocs.bigcommerce.comwww.shopify.com

That maps nicely to something like:

You can also maintain shared pricing groups when several customers have the same deal, rather than creating everything individually. BigCommerce supports assigning companies to customer groups and using those groups to control pricing/catalog access. docs.bigcommerce.com

Shopify is also quite good now

Shopify has improved substantially for B2B. As of 2026, even its non-Plus plans include B2B functionality with company profiles, custom catalogs, tailored pricing, volume discounts and payment terms. Shopify says Plus adds unlimited catalogs and direct catalog assignment to companies/locations. www.shopify.com

So I'd think about it this way:

BigCommerce

• ⭐ Best fit for complex wholesale pricing
• Customer/group-specific price lists
• SKU-level pricing
• Strong B2B account structure
• Good if you expect lots of negotiated prices
• Particularly attractive for parts/industrial-style catalogs

Shopify

• ⭐ Best if you want the easiest overall ecommerce platform
• B2B pricing is now native rather than requiring an app
• Excellent general storefront/admin experience
• Especially compelling if you also sell DTC
• More complex B2B pricing may push you toward Shopify Plus or apps

One important distinction

If by "customer-specific pricing" you mean each wholesale customer literally has their own negotiated price for hundreds/thousands of parts, rather than simply:

Customer A = 20% off
Customer B = 25% off

then I'd choose BigCommerce. Its price-list model is particularly well suited to maintaining actual customer-specific SKU prices. docs.bigcommerce.com

If you tell me roughly how many SKUs you have, how many wholesale customers, whether each customer has unique prices, and whether you need Net-30/POs, I can tell you which platform I'd choose for your specific setup—and whether you actually need a full B2B platform or can keep it much simpler.

For a small B2B parts supplier with a handful of wholesale accounts, I’d put BigCommerce first, especially if customer-specific pricing is the main requirement.

My ranking

1. BigCommerce — probably your sweet spot

BigCommerce has a particularly good model for wholesale: Customer Groups + Price Lists. Price Lists can specify prices down to the SKU/variant level and be assigned to customer groups; BigCommerce also supports assigning individualized pricing to companies. docs.bigcommerce.com

So you could have:

• Customer A → $12.40 for part X
• Customer B → $11.75 for part X
• Customer C → $13.10 for part X
• Everyone else → $15.99 retail

without creating duplicate products or relying on coupon codes.

It also supports bulk pricing and customer-specific catalogs, which are useful for parts distribution. www.bigcommerce.com

That's the model I'd want for your business.

BigCommerce

2. Adobe Commerce — most powerful, but probably overkill

Adobe Commerce's B2B functionality has Shared Catalogs, where you can create a catalog with custom prices and assign it to particular companies. You can set either fixed prices or percentage discounts and add quantity/tier pricing. experienceleague.adobe.com

It's extremely capable if you eventually have:

• hundreds/thousands of wholesale accounts
• complicated contract pricing
• multiple websites
• elaborate customer hierarchies
• ERP/PIM integrations
• sophisticated purchasing workflows

But for "we have a few wholesale customers and each gets their own price sheet," I'd consider it unnecessarily heavy.

Adobe Commerce

3. Shopify Plus — good, but I'd choose it for other reasons

Shopify's B2B catalogs can have fixed prices, percentage adjustments, product restrictions and volume pricing. On Shopify Plus, you get unlimited catalogs and can assign them directly to companies/company locations. help.shopify.com

The catch is that I'd pick Shopify Plus because you specifically want the Shopify ecosystem, storefront experience, apps, etc., rather than because it has the best customer-specific pricing model.

For a small parts distributor, Plus can also be a lot of platform for the size of the operation.

Shopify

What I'd actually do in your situation

If your pricing looks something like:

Retail price → customer-specific price → quantity break

I'd choose BigCommerce and structure it roughly as:

Product catalog
→ master SKU/product data

Customer accounts
→ one account/company per wholesale customer

Price lists
→ one negotiated price list per customer, or shared lists for customers with identical pricing

Customer groups
→ organize accounts that share pricing/catalog rules

Bulk pricing
→ additional quantity breaks where applicable

That gives you a clean path from 5 wholesale customers today to dozens or hundreds later without rebuilding the store.

One important question, though: how your pricing is actually maintained matters more than the storefront. If you currently have Excel/CSV price sheets like Customer A / SKU / agreed price, I can compare BigCommerce vs Shopify vs WooCommerce specifically for importing and maintaining those customer price lists, which is where the differences become much more significant.

For a small B2B parts supplier with a few wholesale customers, I’d prioritize platforms that can handle:

• customer-specific price books (“Customer A pays $8, Customer B pays $7.25”)
• customer login portals
• hidden wholesale pricing
• different catalogs by customer
• quick reordering by SKU
• minimum quantities / case packs
• integration with inventory/accounting software

The best fit depends on how complex your pricing is:

www.bigcommerce.comoroinc.com

My likely recommendation for your situation

1. BigCommerce B2B Edition — best overall match

For a parts supplier selling to several wholesale accounts, this is probably the strongest balance of capability and simplicity. It supports customer groups, price lists, account-specific pricing, and custom catalogs without building everything from scratch. www.bigcommerce.com

Example:

• Customer A logs in → sees their negotiated prices
• Customer B logs in → sees different prices
• Public visitors → see retail or no prices

2. Shopify (with B2B features/apps) — best if you already like Shopify

If you also sell direct-to-consumer, Shopify can be attractive because you can run one storefront. But wholesale parts businesses often end up adding apps or custom work for things like negotiated pricing, quoting, and account workflows. www.bigcommerce.comoroinc.com

3. OroCommerce — only if your pricing is complicated

Consider it if you have:

• hundreds of wholesale accounts
• multiple price tiers
• regional pricing
• sales reps creating orders
• ERP-driven pricing rules

It is built specifically for B2B workflows, but it is probably excessive for a small supplier with a few buyers. oroinc.com

A practical rule of thumb

• 5–50 wholesale customers, simple negotiated pricing: BigCommerce or Shopify + B2B tools
• 50–500 customers, many price lists: BigCommerce B2B Edition
• Thousands of accounts / complex distributor workflows: OroCommerce or Adobe Commerce

A few details would change the recommendation:

1. Roughly how many SKUs/parts do you sell?
2. Do customers each have their own negotiated price lists, or are they in tiers (dealer / distributor / reseller)?
3. What system holds your inventory today (QuickBooks, NetSuite, ERP, spreadsheet, etc.)?

For a small B2B parts supplier with a handful of wholesale customers, I’d focus less on generic ecommerce features and more on how easily you can maintain customer-specific SKU prices, catalogs, and ordering rules.

My shortlist

I'd probably choose BigCommerce for your situation. Its B2B functionality specifically supports customer groups, price lists with SKU-level custom pricing, and bulk pricing, without requiring a separate site for wholesale customers. www.bigcommerce.com

For example, you could have:

• Customer A → $8.25 for Part 123
• Customer B → $7.90 for Part 123
• Customer C → $9.10 for Part 123
• Default web price → $11.50

…and have those prices automatically appear when the appropriate customer logs in.

Shopify is also very good

Shopify's B2B catalogs let you assign products and prices to specific companies/company locations, including fixed SKU/variant prices and volume pricing. On Shopify Plus, you get unlimited catalogs and direct assignment to companies and locations. help.shopify.com

I'd favor Shopify Plus if you also care heavily about having a consumer-quality storefront, marketing ecosystem, and broader Shopify integrations.

The catch is that if your business is primarily "customers log in, find parts, see their price, and reorder," BigCommerce's B2B model feels more naturally aligned with that use case.

Adobe Commerce is the power-user option

Adobe Commerce B2B has perhaps the most explicit model for your situation: shared catalogs can be created specifically for individual companies, with custom prices visible only to those companies' logged-in users. experienceleague.adobe.com

It also supports customer-group and quantity/tier pricing. experienceleague.adobe.com

But for "a few wholesale customers," I'd hesitate to take on Adobe Commerce unless you have more complicated requirements—ERP integration, thousands of customer-specific prices, multiple buyer accounts, approval workflows, quotes, etc.

What I'd pick for you

1. BigCommerce B2B — best starting point
2. Shopify Plus B2B — best if you want a more mainstream/polished ecommerce ecosystem
3. Adobe Commerce — best if your B2B pricing is genuinely complex

One important question could change my recommendation: are your customers each getting thousands of individually negotiated SKU prices, or is it more like "Customer A gets 20% off our standard price, Customer B gets 25%, plus some special prices on certain parts"?

If you tell me which of those describes your pricing—and roughly how many SKUs and wholesale customers you have—I can narrow it down considerably.