Build a B2B SaaS — multi-tenant, team-based, enterprise-ready.
B2B SaaS has specific requirements that B2C doesn't: organization-level accounts, role-based permissions, team management, SSO for enterprise, and account-level billing. RCB Software builds B2B SaaS with these requirements built in.
B2B SaaS founder who needs a multi-tenant web application with organization accounts, role-based permissions, team management, and account-level billing
B2B SaaS has architectural requirements that are different from consumer apps:
Multi-tenancy: Data for each organization is isolated. Row-level security in Postgres ensures Organization A can never see Organization B's data. This is not a feature — it's a compliance and trust requirement.
Role-based permissions: Admin users can manage team settings. Regular users can access the product. Viewers can read but not edit. Permissions enforced at the API layer, not just the UI.
Team management: Invite by email. Accept invitation flow. Remove team member. Transfer ownership.
Account-level billing: The organization pays, not the individual. Billing contact may be different from the admin. Seat-based pricing that adjusts when team members are added or removed.
Enterprise requirements (Series A+): SAML SSO, SCIM provisioning, audit logs, custom data retention, dedicated instances.
B2B SaaS application deployed — multi-tenant, role-based permissions, team management, Stripe billing by seat or organization
Org-scoped multi-tenancy
Postgres RLS, organization isolation
Role and permission system
configurable roles per org
Team management
invite, accept, remove, transfer ownership
Organization billing
Stripe with seat tracking and usage
SSO-ready
Auth provider integration (Clerk, WorkOS)
Audit log
user action history for compliance
One honest number to start.
Fixed-scope, fixed-price. The number below is the starting point — final scope is built from your brief.
B2B SaaS application deployed — multi-tenant, role-based permissions, team management, Stripe billing by seat or organization
Three steps, every time.
The same repeatable engagement on every project. No surprises, no mystery, no billable ambiguity.
Brief & discovery.
We send you questions, then get on a call. Output: a written scope with every step, feature, and integration listed.
Build & ship.
Fixed schedule, weekly reviews. No scope creep unless you change the scope — and if you do, we reprice it transparently.
Warranty & retainer.
30-day warranty on every launch. Most clients stay on a monthly retainer for ongoing features and maintenance.
Why Fixed-Price Matters Here
B2B SaaS applications have defined multi-tenant and team management patterns. Fixed-price from the spec.
Related engagements.
Questions, answered.
Clerk for most cases — handles email, SSO, and organization management out of the box. WorkOS for enterprises that require SAML/SCIM from day one. Custom auth via NextAuth for specific needs.
When a specific enterprise customer requires it as a condition of purchase. Not before. SAML SSO adds 2-3 weeks of development and ongoing maintenance. WorkOS simplifies this significantly.
Tell Ryel about your project.
Describe what you’re building and what outcome you need. You’ll have a written, fixed-price scope within the week.