Industry — B2B SaaS & Marketplaces

Multi-tenant SaaS, built production-ready.

Multi-tenant platforms, two-sided marketplaces, billing engines, admin consoles, and partner APIs — built AI-first with Stripe billing and SSO and senior engineers reviewing every line.

What is it? Kinisys builds B2B SaaS and marketplace software — multi-tenant platforms, two-sided marketplaces, billing engines, admin consoles, and partner APIs — using AI agents directed by senior engineers. We architect multi-tenancy, Stripe billing, and SSO from day one so you launch a real product, not a prototype. You own 100% of the code in your GitHub from commit one.

What we build for B2B SaaS

  • Multi-tenant platforms — clean data isolation, org/team management, and role-based access that scales with your customer base.
  • Two-sided marketplaces — supply and demand onboarding, matching, reviews, and split payments.
  • Billing engines — Stripe plans, trials, metered and usage-based pricing, proration, and dunning.
  • Admin consoles — internal tooling for support, provisioning, impersonation, and usage analytics.
  • Partner & public APIs — documented, versioned APIs and webhooks so customers and integrators can build on you.

Compliance & considerations

B2B buyers expect enterprise-grade fundamentals before they sign, so we build them in from the start. That means true multi-tenancy with isolated data, SSO via SAML and OIDC so customers bring their own identity provider, and Stripe-based billing wired for the pricing models B2B actually uses — seats, usage, and contracts. We design audit logging, role-based access, and webhook-driven partner APIs so your platform is secure, extensible, and ready for procurement and security reviews as you move upmarket.

Related industries

Explore other verticals we build for.

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Headless storefronts, OMS, inventory sync, and AI merchandising built AI-first.

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Real Estate & PropTech

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FAQ

B2B SaaS development questions.

Do you build true multi-tenancy and SSO?
Yes. We architect multi-tenancy with clean data isolation and role-based access from day one, and we build SSO via SAML and OIDC so enterprise customers can bring their own identity provider. These are foundations we design in, not features we retrofit later.
Can you integrate billing with Stripe and metering?
Yes. We build Stripe-based billing with plans, trials, metered and usage-based pricing, proration, and upgrade/downgrade flows, plus the admin tooling to manage it. For marketplaces we wire in split payments and payouts to both sides.
How long does a B2B SaaS or marketplace build take?
A typical first version ships in 4–6 weeks under senior review. Larger platforms — two-sided marketplaces, partner APIs, deep admin consoles — are delivered in phases, each with a fixed price and timeline, so you launch a real product rather than a prototype.

Ready to build your SaaS or marketplace?

Tell us what you want to build, your rough timeline, and any budget range. We reply within one business day.

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