What Is a B2B Marketplace? Definition and Examples
A B2B marketplace is an online platform where many businesses buy and sell from each other through one storefront, and the operator takes a commission on the trade. Unlike a single supplier’s website, it connects independent sellers with business buyers, using wholesale pricing, negotiated terms, and features like purchase orders and net payment windows.
That last part is what makes it “B2B” and not just a bigger online store. The buyers are companies, the orders are bulk, and the money moves on business terms.
B2B marketplace meaning: the short version
The B2B marketplace definition comes down to three things: many sellers, business buyers, and an operator who runs the platform without owning the stock. Suppliers list their catalogs, verified business buyers place bulk orders, and the marketplace earns a cut plus, sometimes, fees for payments, financing, or logistics.
If you had to define a B2B marketplace in one line, it’s a wholesale version of Amazon’s third-party model: a shared destination where the trade happens between members, not with the platform itself. You’ll also see the term written as B2B e-marketplace or B2B electronic marketplace, especially in procurement and academic writing. They mean the same thing. “Electronic” is just the older word for “online.”
The scale behind the term is easy to underestimate. US B2B ecommerce site sales reached $2.297 trillion in 2024, up 10.5% year over year, and marketplaces are taking a growing share of it: 59% of B2B buyers now make at least a quarter of their purchases through online marketplaces. Business buying has moved online, and it increasingly moves through platforms.
How does a B2B marketplace work?
A buyer lands on one site and sees products from dozens or hundreds of suppliers. They search, compare, and order in volume. Behind the scenes, the marketplace routes each order to the right seller, applies the negotiated price for that account, collects payment, and pays out each supplier after taking its commission.
The mechanics look a lot like a consumer marketplace until you reach the checkout. Then the B2B rules kick in:
- Wholesale and tiered pricing. Prices drop as order quantity rises, and a given buyer may see rates negotiated for their account rather than a public list price.
- Minimum order quantities. Suppliers set a floor, because a case or a pallet is the unit, not a single item.
- Purchase orders and quotes. Buyers often request a quote or submit a PO before payment, and approvals can involve several people on the buying side.
- Net payment terms. Business buyers expect to pay on net-30 or net-60 terms, or through a credit line, not a card at checkout.
- Verification. Both sides are usually vetted, so a buyer knows a supplier is legitimate and a supplier knows it’s selling to a real business.
Strip those away and you have a consumer store. Keep them, and you have a B2B marketplace.
B2B marketplace vs B2C marketplace: what’s different?
The models rhyme, but the buyer changes everything. A B2C marketplace optimizes for a shopper making a quick, emotional, single-item decision. A B2B marketplace optimizes for a procurement team making a repeat, rational, high-volume one. Here’s the split:
| B2B marketplace | B2C marketplace | |
|---|---|---|
| Who buys | Businesses and procurement teams | Individual consumers |
| Pricing | Wholesale, tiered, often account-specific | Fixed public price |
| Order size | Bulk, minimum quantities | Usually single items |
| Payment | POs, invoices, net-30 or net-60 terms | Card or wallet at checkout |
| Decision | Multiple approvers, repeat orders | One person, one-off |
| Examples | Alibaba, Faire, Amazon Business | Amazon, Etsy, eBay |
The underlying platform logic is shared, which is why the same software can often power both. What differs is the pricing engine, the payment terms, and the buyer experience. If the store-versus-platform distinction is still fuzzy, our explainer on marketplace vs ecommerce breaks down the one-seller-versus-many split that sits under all of this.
Types of B2B marketplace
Not all B2B marketplaces do the same job. Four patterns cover most of them:
- Horizontal marketplaces sell across many categories to many industries. Amazon Business and Alibaba are horizontal: office supplies to industrial parts, all in one place.
- Vertical marketplaces go deep on one industry. ThomasNet for industrial procurement or Faire for independent retail are vertical, and they win on category-specific search, data, and buyer trust.
- Procurement marketplaces plug into a buyer’s purchasing systems, with approval workflows, catalogs negotiated per company, and spend controls.
- Managed or private marketplaces are run by a single brand, distributor, or association that invites its own suppliers. The operator controls who joins, sets the commission, and owns the buyer relationship.
That last type is where a lot of new B2B marketplaces are being built today, because owning the channel beats renting one.
B2B marketplace examples
The clearest way to understand the definition is to look at real platforms. A few that most business buyers meet:
- Alibaba and Global Sources: global sourcing of manufactured goods from Asian suppliers.
- Amazon Business and ThomasNet: procurement of everyday and industrial supplies in the US.
- Faire and Ankorstore: two of the leading B2B wholesale marketplaces, connecting small brands with independent retailers in the US and Europe.
- IndiaMART: India’s largest B2B marketplace, connecting buyers with local manufacturers.
For pricing, region coverage, and who each one suits, our roundup of the top B2B marketplaces for small businesses compares thirteen of them side by side. Each fits the same definition: many suppliers, business buyers, one operator taking a cut.
How to build your own B2B marketplace
Joining a marketplace like Faire gets you in front of buyers fast, but you rent the relationship and hand over a commission on every order. Running your own flips that: you set the terms, keep the margin, and own the buyer data. A distributor digitizing its supplier catalog, a brand aggregating complementary makers, or a trade association pooling its members are all classic reasons to operate a private B2B marketplace instead of listing on a public one.
You don’t need a custom build to do it. Garnet Marketplace, a Shopify multi-vendor marketplace app, adds the seller layer on top of a normal Shopify store: vendor accounts, catalog syncing, order splitting, per-vendor commissions, negotiated wholesale pricing, and automated payouts through Stripe, Mollie, PayPal, or Airwallex. Because it runs on Shopify’s marketplace stack, you also inherit Shopify’s B2B tools for company accounts, price lists, and net payment terms.
Real B2B stores run this way already. For the full how-to, our guide to build your own B2B marketplace maps each wholesale feature (net terms, tiered pricing, minimum orders, quotes) to what Shopify and a multi-vendor app handle. If you’re weighing the operator features against the build effort, the B2B marketplace software page details what running one on Shopify actually involves.
