Marketplace development
Multi-vendor marketplaces with seller onboarding, split payments and payouts, and marketplace integrations.
Cordless drill 18V
Sold by Brightwell Hardware · 2 days delivery
4 sellers · from $124
What we build
Marketplaces we build
We build multi-vendor marketplaces with seller onboarding, split paymentsOne buyer payment divided between sellers and the marketplace automatically. and payouts, and connect your store to marketplaces such as Amazon.
Third-party marketplaces
Sellers list and fulfil; you earn commission and control the experience.
Hybrid retail
Extend your own range with third-party sellers on the same site.
B2B marketplaces
Suppliers and trade buyers with account pricing and invoicing.
Selling on marketplaces
List your products on Amazon, eBay or others, with orders and stock synced.
Service marketplaces
Bookings for services and appointments from independent providers.

How to get started
Three steps to a plan for marketplace development
- 1Tell us what you needUse the project form or book a call. A few sentences about the goal is enough to start.
- 2Free technical consultationWe go through your goals, users, existing systems and constraints with you.
- 3Your planA detailed plan covering the right tech stack, architecture, timeline and budget. Then you decide.
How it works
Which seller wins the sale
Several sellers offer the same product. Change the ranking weights to see which offer is featured.
Cordless drill 18V, 2 batteries
$134
Delivered in 2 days
Sold by Brightwell Hardware
Add to basketAll offers, ranked
- 1Brightwell Hardware$1342d4.759
- 2ToolDepot$1295d4.452
- 3Your store (first party)$1391d4.850
- 4ProFix Supplies$1247d4.150
Featured offer
Brightwell Hardware
Order defect rate 0.6%. Ranking rules decide which seller wins the sale when several offer the same product, so they shape what buyers pay and which sellers grow.
One payment, split
Buyers pay once; sellers and the marketplace are paid separately. Change the basket and settings to see the split.
Basket
The payments provider verifies each seller (KYC), splits the charge and pays out on schedule, through services such as Stripe Connect or Adyen for Platforms.
MARKETPLACE
Order #M-40219 · one card payment
SPLIT
Sellers are paid when each item is dispatched.
Our approach
How the work runs
Model
Marketplace model, commission, seller terms and who handles fulfilment and returns.
Platform
A marketplace platform such as Mirakl, a plugin on your commerce platform, or custom.
Payments
Split payments, commission, payouts and seller verification through a payments provider.
Seller experience
Onboarding, catalogue upload, order management and reporting for sellers.
Launch
Recruit and onboard first sellers, then scale.
What we'll need from you
Having these ready keeps the work moving.
Commercial model
Commission, fees and seller terms.
First sellers
A handful of sellers for launch and testing.
Operations team
People to manage sellers, disputes and quality.
Legal and tax advice
Terms, liability and marketplace tax rules.
Who's on the project
Our team, working with marketplace operations from yours.
Buyers
Sellers
Operator
Point to a role to see what they do. Your team is shown in amber.
Services
Marketplace development services
Marketplace platform setup
Mirakl, Sharetribe or a plugin on your commerce platform, configured for your model.
Custom marketplace development
Seller portals, catalogue rules and order routing built around your model.
Marketplace payments
Split payments, commission and payouts to verified sellers through Stripe Connect or Adyen for Platforms.
Marketplace channel integration
Listings, stock and orders synced with Amazon, eBay and other marketplaces.
Deliverables
What you receive
In your hands
What the documentation looks like
Every project ends with documents your team can run with. Here is an excerpt of one of them.
Seller payouts
Week 32 · paid on dispatch
| Seller | Sales | Commission | Payout | |
|---|---|---|---|---|
| Northwood Homeware | $18,420 | $2,763 | $15,657 | Paid |
| Voltline | $31,090 | $2,487 | $28,603 | Paid |
| Thread & Co. | $9,860 | $1,676 | $8,184 | On hold |
Measuring success
How success is measured
What we report on in marketplace development projects. Which measures apply, and their targets, are agreed with you at the start.
Drives and protects GMV
In the ledger
Gross merchandise value (GMV)
Total value of goods sold through the marketplace.
A seller's account health
The seller scorecard we build measures each seller against your targets. Choose a seller and adjust their measures to see their standing.
- 1.3%
Orders with a negative review, a claim or a chargeback. Target under 1%.
- 1.9%
Orders the seller cancelled before dispatch. Target under 2.5%.
- 5.5%
Orders dispatched after the promised date. Target under 4%.
- 96%
Shipments with a tracking number the carrier recognizes. Target above 95%.
Account health
At riskVoltline
Offers lose ranking and the seller must submit an improvement plan; continued misses can pause selling.
- Order defect rate1.3% vs 1%
- Late dispatch rate5.5% vs 4%
Readiness check
Are you ready for
marketplace development?
Five questions, about a minute. You'll see what to settle first and a sensible starting point.
Is the marketplace model and commission defined?
Do you know who handles fulfilment and returns?
Is there a payments provider that supports marketplaces?
Do you have first sellers lined up?
Have you checked tax and liability rules for your markets?
Readiness summary
Step 1 of 5
- Is the marketplace model and commission defined?—
- Do you know who handles fulfilment and returns?—
- Is there a payments provider that supports marketplaces?—
- Do you have first sellers lined up?—
- Have you checked tax and liability rules for your markets?—
Complete each step to see your first step. Nothing is sent until you choose to.
How to start
From first call to production
Start where you are. Each step ends with a decision, so you commit to the next one only when it makes sense.
Your project, tracked
Drag the van or chooseChoose a stop
Stop 1 of 5
Free technical consultation
Talk through the goal, the users, the systems involved and any deadlines.
Book the consultation- 1×A clear view of scope and priorities
- 1×A recommended next step
- 1×A plan covering stack, architecture, timeline and budget
Each step ends with a decision before the next one ships.
Estimate the value
What it could be worth to you
Enter your own figures. The formula is shown, and the estimate can go with your enquiry.
Marketplace revenue
ESTIMATE
Marketplace development
Sellers × sales per seller × take rate
Build or buy
When you don't need
a custom build
Part of the free technical consultation: when an existing product covers the need, we recommend it instead of a custom build. These are the options we weigh, alongside the tools you already have.
Plugin
On your existing store
- Multi-vendor apps on your commerce platform
- When a small number of sellers on an existing store.
Platform
A marketplace platform
- Marketplace platforms such as Mirakl or Sharetribe
- When a standard marketplace model where the platform's features fit.
Custom build
Built around your model
- A marketplace model that platforms don't support
- Deep integration with your own operations
- B2B rules such as account pricing and invoicing
- The marketplace is the core product
In your industry
Where it applies
What this work delivers in the industries we serve.
Technologies and standards
Chosen for your project
Marketplace platforms and payment providers are chosen together. Select a pairing to see how they connect; we confirm the right pair for your markets in the free technical consultation.
| Platform ↓ · Payments → | Stripe Connect | Adyen for Platforms | PayPal Complete Payments |
|---|---|---|---|
| Mirakl | |||
| Sharetribe | |||
| CS-Cart Multi-Vendor | |||
| Custom build |
Sharetribe with Stripe Connect: Sharetribe's payments run on Stripe Connect, including seller onboarding and payouts.
Marketplace platforms
- Mirakl
- Sharetribe
- CS-Cart Multi-Vendor
Marketplace payments
- Stripe Connect
- Adyen for Platforms
- PayPal Complete Payments
Marketplace integration
- Amazon Selling Partner API
- Rithum (formerly ChannelAdvisor)
- Linnworks
Tax
- Avalara
- Stripe Tax
Questions
Common questions
about marketplace development
Build or use a marketplace platform?
We recommend Mirakl or a similar platform for marketplaces that need seller management, catalogue and order routing at scale, and a plugin or custom build around a marketplace payments provider for lighter ones.
How do payments work?
Buyers pay once. We set up a marketplace payments provider such as Stripe Connect or Adyen for Platforms to split the payment, deduct your commission and pay out sellers after verifying their identity.
Can you connect us to Amazon?
Yes, through the Amazon Selling Partner API or a channel management tool, syncing listings, stock, orders and fulfilment.
How is an ecommerce project priced?
Audits, proofs of concept and well-defined builds are delivered as fixed-price engagements; ongoing optimization and larger programmes use a dedicated team. The free consultation ends with a plan covering platform, architecture, timeline and budget.

