Multi-Vendor Marketplace Development

A marketplace where every seller can self-serve and every payout is automated: no spreadsheet stamping commissions, no manual onboarding bottleneck.

What Multi-Vendor Marketplace Delivers

• A Vendor Portal Vendors Actually Like: Multi-vendor is structurally different from a single-store marketplace: every seller has its own catalog, brand, performance dashboard, payouts and SLAs. The make-or-break is the vendor portal: if sellers cannot self-serve, your ops team becomes the bottleneck and your supply side stalls. We design the vendor portal as a first-class product, not an afterthought.
• Automated Payouts at Real Volume: Stripe Connect, Mangopay or Adyen for Platforms: split a customer charge across many sellers, hold escrow until delivery confirmation, weekly payout cycle with automatic withholding for taxes where required.
• A Commission Engine You Can Reason About: Per-vendor, per-category, tiered, promotional and time-windowed commissions, all expressible as composable rules. Marketing changes a rate; the change is reviewable in Git and applied without a deploy.
• Search and Ranking That Reward Quality: Algolia or OpenSearch with vendor-quality signals (response time, fulfillment SLA, return rate). Vendors see exactly what would lift their rank, turning ops feedback into a self-improvement loop.
• Trust & Safety as a System, Not a Heroic Act: Listing moderation queue with priority by vendor risk tier, dispute flow with chargeback evidence collection, fraud scoring on first-time buyers, return management with split-vendor logistics.
• B2B-Ready From the Start: Account-based pricing, tax-exempt purchasing, volume discounts, MOQ enforcement and PO-based checkout: the things B2B buyers expect that B2C marketplaces never modeled.

How We Build Your Multi-Vendor Marketplace

1. Two-Sided Discovery: We interview five buyers and five vendors before architecture. Marketplace failures are almost always supply-side failures we miss when we only listen to demand.
2. Commission + Payout Modeling: We codify the rules and ledger entries before any UI: every checkout, refund, return and dispute generates the right ledger entries from day one.
3. Vendor Portal First: Onboarding, catalog management, orders, performance and payouts, all live before the buyer storefront. Without the portal there are no products.
4. Buyer Storefront: Discovery, search, cart, checkout, returns. Wired to the same vendor data so a vendor change reflects in seconds.
5. Trust & Safety + Ops Tools: Moderation queue, dispute resolution flow, fraud rules, manual override tooling: the unglamorous stuff that keeps the marketplace alive.
6. Soft Launch + Vendor Concierge: First 20 vendors onboard with white-glove support so the portal gets refined where it actually breaks. From vendor 21+ it is fully self-service.

High-performance stack used by global leaders

React/Next.js/Angular on the frontend and Java 21 + Spring Boot + PostgreSQL 14 on the backend: the same stack that BBVA, ING, and Netflix use for their security and performance.

Multi-Vendor Marketplace: FAQ

How is this different from a regular marketplace build?

A regular marketplace has one operator selling many products. Multi-vendor has many sellers each with their own catalog, payouts, branding and SLAs: the vendor portal is a full product surface, not a back-office view. That's where most of the engineering goes.

How much does it cost?

A focused multi-vendor MVP (one category, one country, one payment provider) is €90,000-€180,000. A scaled marketplace with B2B features, multi-country payouts and full ops tooling reaches €280,000-€600,000+.

How long to launch?

14-22 weeks to a self-service vendor portal plus buyer storefront. Multi-country, multi-currency rollouts in 7-12 months.

Why not Mirakl or Sharetribe?

Mirakl is excellent if your GMV justifies €200K+/year licensing and your fit is close to their model. Sharetribe is a great prototype but escapes from it eventually. We build custom when you outgrow Sharetribe but cannot justify Mirakl, or when your model is structurally different.

How are vendor disputes handled?

Configurable workflow: buyer raises issue, vendor has X hours to respond, automated escrow hold, evidence upload from both sides, ops review, decision recorded with reasoning. Chargeback evidence packets are exportable in one click.

Can vendors integrate via API?

Yes. Public REST API for catalog sync, order webhooks, payout reports. We document it like a real product API: mid-market vendors expect this.

How is shipping handled across vendors?

Each vendor configures their own shipping zones and rates; the cart computes shipping per vendor and shows the buyer one combined cost. Multi-vendor orders split into separate shipments at fulfillment time, each with its own tracking.

Do you work with clients globally?

Yes. We work fully remote with clients across Spain, Europe, the US and LATAM. Time zones, video calls and live demos at every milestone.