A B2B marketplace is not Amazon with a company logo. Buyers negotiate prices, purchases go through approval chains, invoices are paid on net-30 terms, and every order has to land in someone’s ERP. I wrote this for CTOs and product leaders building procurement portals, wholesale platforms, or opening a retail business to third-party sellers.
Key takeaways
- There is no single best B2B marketplace developer. Procurement portals, vertical wholesale platforms, and retailers adding sellers each need a different kind of partner.
- In B2B, integrations decide success. A marketplace that does not sync with SAP, NetSuite, or the buyer’s accounting system creates manual work instead of removing it.
- Payment logic is harder than in B2C: invoicing, deferred payment, split payouts, and escrow must work together from the first transaction.
- Catalogs grow fast. A setup built for 50,000 SKUs often needs re-architecture past a million.
- Syndicode’s published estimates put a custom marketplace at $80K–$289K in Eastern Europe versus $240K–$820K in the US.
- Vet partners on live B2B systems, integration depth, and IP terms, not on capability decks.
How I evaluated these companies
Each company is judged on the same five criteria, in the same order.
- B2B production experience. Has the firm shipped a live marketplace with business buyers, not only consumer storefronts?
- ERP and accounting integration. Can they connect SAP, NetSuite, Xero, or QuickBooks so orders, invoices, and inventory stay in sync?
- B2B payment logic. Do they handle invoicing, split payouts, escrow, and multi-currency flows?
- Team continuity. Will the same engineers maintain the platform a year after launch?
- Ownership terms. Do you get full code and IP ownership with a clean handover?
These criteria do not measure star ratings or headcount. Where a company does not publicly claim something, I say so.
The 12 companies at a glance
The order reflects fit for B2B marketplace builds, not overall quality.
| Company | Best for | B2B integration focus |
|---|---|---|
| Syndicode | B2B procurement and retailers adding third-party sellers | SAP, NetSuite, Xero, QuickBooks, Salesforce, HubSpot |
| ScienceSoft | Enterprise B2B with existing system landscapes | ERP, PIM, OMS |
| Andersen | Regulated B2B in fintech-adjacent, healthcare, logistics | Enterprise systems, multi-region |
| Arcanys | Mid-market B2B with dedicated teams | Not publicly claimed in the reviewed sources |
| Zco Corporation | Complex workflows and high transaction volumes | Not publicly claimed in the reviewed sources |
| Intellectsoft | Enterprise B2B with AI-driven search and pricing | Omnichannel systems |
| DBB Software | B2B catalogs where search drives revenue | Analytics and experimentation |
| Radixweb | Single partner from MVP through growth | Payments, vendor management, analytics |
| Bacancy | Multi-vendor wholesale on PHP/Laravel | Commissions and payouts |
| Intuz | B2B service and booking marketplaces | Not publicly claimed in the reviewed sources |
| Hidden Brains | Budget-conscious full-cycle B2B builds | Not publicly claimed in the reviewed sources |
| Mobian Studio | Mobile apps for field buyers and sales reps | In-app payments |
1. Syndicode
B2B procurement · ERP integrations · Senior-only teams
Evaluated on: B2B experience: describes itself as a B2B marketplace development company, building procurement portals, B2C retail, and multi-vendor models. ERP: SAP, NetSuite, Xero, and QuickBooks for invoicing, tax compliance, and inventory sync. Payments: Stripe, PayPal, Braintree, and Adyen with escrow, split payments, and recurring billing. Team continuity: average tenure of 4.5 years. Ownership: full IP assignment from day one.
Differentiator. Syndicode’s online marketplace development services are built around the moment a retailer opens its platform to third-party sellers. That means multi-vendor onboarding, seller dashboards, commission logic, and inventory management layered on top of the ERP and logistics systems a business already runs. The team argues engineering trade-offs openly, such as monolith vs. microservices or build vs. buy.
Proof of execution
- Six years supporting ThredUP, a US resale marketplace, from Series B through public exit.
- Fuzu, a job marketplace connecting employers with half a million users in Africa.
- HLPRS, a household services marketplace in the Netherlands.
Pricing: Fixed-price discovery sprint of 2–4 weeks, then fixed-price, dedicated team, or retainer. Potential limitation: The senior-only model is overkill for a simple catalog with a few sellers.
My take. The strongest fit when the hard part is connecting a marketplace to finance and operations, not drawing the storefront. GDPR is built into the architecture, which matters for EU buyers.
2. ScienceSoft
Enterprise B2B · ERP/PIM/OMS · Multi-region
Evaluated on: B2B experience: enterprise B2B and B2C marketplaces. ERP: tight integration with ERP, PIM, and OMS. Payments: secure payment and compliance flows. Team continuity and ownership: not publicly claimed in the reviewed sources.
Differentiator. Data modeling for large SKU sets inside complex enterprise landscapes.
Pricing: Not publicly listed. Potential limitation: Enterprise process can slow a growth-stage team.
My take. Choose them when the marketplace is one system among many in a large company.
3. Andersen
Regulated industries · Large programs · Compliance
Evaluated on: B2B experience: regulated marketplaces in fintech-adjacent, healthcare, and logistics sectors. ERP: enterprise systems. Payments: not publicly claimed in the reviewed sources. Team continuity: capacity for large teams. Ownership: not publicly claimed in the reviewed sources.
Differentiator. Programs with strict SLAs, audits, and multi-region deployments.
Pricing: Not publicly listed. Potential limitation: Scale can dilute marketplace-specific depth.
My take. Fits B2B platforms where compliance sets the roadmap.
4. Arcanys
Dedicated teams · Product discovery · Multi-vendor
Evaluated on: B2B experience: multi-vendor platforms for startups and mid-market brands. ERP: not publicly claimed in the reviewed sources. Payments: vendor payouts. Team continuity: long-term dedicated teams. Ownership: not publicly claimed in the reviewed sources.
Differentiator. Teams that embed into the client’s product organization.
Pricing: Not publicly listed. Potential limitation: Limited public evidence of deep ERP work.
My take. Good when you want a team that iterates with you after launch.
5. Zco Corporation
Complex workflows · High volume · Custom software
Evaluated on: B2B experience: custom marketplace platforms with complex workflows. ERP, payments, team continuity, and ownership: not publicly claimed in the reviewed sources.
Differentiator. A long track record in custom software with focus on performance and maintainability.
Pricing: Not publicly listed. Potential limitation: Verify B2B-specific marketplace references.
My take. A seasoned option for mission-critical workflows.
6. Intellectsoft
Enterprise · AI search and pricing · Risk controls
Evaluated on: B2B experience: enterprise marketplaces. ERP: omnichannel systems. Payments: fraud and risk controls. Team continuity and ownership: not publicly claimed in the reviewed sources.
Differentiator. AI for search, recommendations, and dynamic offers.
Pricing: Not publicly listed. Potential limitation: AI-heavy scope may exceed early B2B needs.
My take. Consider them when intelligent pricing is the growth lever.
Q1. How is a B2B marketplace different from B2C?
The storefront looks similar, but almost everything behind it is different. B2B buyers act on behalf of companies, and the platform has to respect their rules.
Pricing is negotiated, not listed
Contract prices, volume tiers, and buyer-specific catalogs replace one public price. The data model must support this from day one.
Purchases need approval
A buyer adds items to a cart, but a manager or procurement team approves the order. Role-based access and approval chains are core features, not extras.
Payment runs on terms
Invoices, net-30 or net-60 terms, and partial shipments are normal. Payout logic must reconcile with the seller’s and buyer’s accounting.
Industry context changes requirements
A medical supply marketplace needs compliance. A construction procurement platform needs to fit estimating and buyout workflows. If you build for contractors, see our list of best software development companies for general contractors.
7. DBB Software
Search · Recommendations · Vendor analytics
Evaluated on: B2B experience: data-driven marketplaces. ERP: not publicly claimed in the reviewed sources. Payments: not publicly claimed in the reviewed sources. Team continuity and ownership: not publicly claimed in the reviewed sources.
Differentiator. Search engines, vendor performance dashboards, and experimentation frameworks.
Pricing: Not publicly listed. Potential limitation: Narrower fit if your bottleneck is ERP or payments.
My take. Useful when buyers struggle to find products in a large B2B catalog.
8. Radixweb
MVP to growth · Vendor management · Post-launch support
Evaluated on: B2B experience: multi-vendor marketplaces. ERP: not publicly claimed in the reviewed sources. Payments: payments and vendor management. Team continuity: positions itself as one partner from MVP through growth. Ownership: not publicly claimed in the reviewed sources.
Differentiator. Discovery, design, development, and ongoing optimization from one vendor.
Pricing: Not publicly listed. Potential limitation: Check depth of B2B procurement references.
My take. A fit if you want one partner for the whole journey.
9. Bacancy
PHP/Laravel · Wholesale catalogs · Commissions
Evaluated on: B2B experience: multi-vendor ecommerce marketplaces. ERP: not publicly claimed in the reviewed sources. Payments: commissions and payout integrations. Team continuity and ownership: not publicly claimed in the reviewed sources.
Differentiator. Catalog management and vendor dashboards on a proven ecommerce stack.
Pricing: Not publicly listed. Potential limitation: Stack choices may limit complex procurement logic.
My take. Practical for wholesale marketplaces with standard workflows.
10. Intuz
Service marketplaces · Booking · Mobile
Evaluated on: B2B experience: service and on-demand marketplaces. ERP: not publicly claimed in the reviewed sources. Payments: booking flows and dynamic pricing. Team continuity and ownership: not publicly claimed in the reviewed sources.
Differentiator. Lean MVPs with a planned path to scale.
Pricing: Not publicly listed. Potential limitation: Focus is early stage rather than enterprise B2B.
My take. Consider them for B2B service booking platforms.
11. Hidden Brains
Full-cycle delivery · SMB · Cost efficiency
Evaluated on: B2B experience: retail and services marketplaces. ERP, payments, team continuity, and ownership: not publicly claimed in the reviewed sources.
Differentiator. End-to-end delivery at a practical budget.
Pricing: Positioned as cost-effective. Potential limitation: Verify integration depth before committing.
My take. Sensible when budget is the main constraint.
12. Mobian Studio
Mobile-first · In-app payments · Vendor portals
Evaluated on: B2B experience: mobile marketplace apps. ERP: not publicly claimed in the reviewed sources. Payments: in-app payments. Team continuity and ownership: not publicly claimed in the reviewed sources.
Differentiator. UX for complex buyer and vendor journeys on mobile.
Pricing: Not publicly listed. Potential limitation: Less suited to backend-heavy procurement.
My take. Worth a look if your buyers order from the field.
Q2. What does a B2B marketplace cost?
Vendor region sets the visible price, while integration scope drives the real one. Syndicode publishes these ranges for a fully custom marketplace:
| Vendor region | Typical cost range |
|---|---|
| Eastern Europe | $80K–$289K |
| Western Europe | $130K–$570K |
| USA | $240K–$820K |
Each ERP, CRM, or logistics integration adds scope. Ask vendors to price integrations separately so you can compare like with like.
Q3. What should you ask before signing?
- Which live B2B marketplace have you built, and can I speak with that client?
- Which ERP and accounting systems have you integrated in production?
- How do you handle invoicing, payment terms, and split payouts?
- How do you model buyer-specific pricing and approval chains?
- What is your average engineer tenure?
- Is full code and IP ownership in the contract from day one?
If the answers are about features rather than trade-offs, keep looking.
Methodology and disclosure
I assessed each company against the same five criteria using public websites, published case studies, and verified review platforms. Where a capability was not stated publicly, I marked it “not publicly claimed” rather than guessing.
Syndicode is listed first because its public B2B and integration track record matches the scope of this article. That placement is a statement of fit, not of rank. Every entry carries a potential limitation, including Syndicode.
Vendor details change. Verify capabilities, pricing, and references directly before signing.
