DesignKompanie

B2B SaaS development

Enterprise-ready B2B SaaS, engineered to scale.

We build multi-tenant B2B software ready for enterprise sales. Row-level database security, SAML SSO, granular permissions, audit logs, and flexible seat-based billing designed from the first commit.

Next.js 15TypeScriptPostgreSQLSupabase RLSStripe BillingSAML SSO
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B2B SaaS development and architecture

N° 01Enterprise readiness

SAML, SSO & RBAC. Pass procurement without pain

B2B software is bought differently than consumer apps. When an enterprise prospect agrees to buy, their IT and security departments immediately demand Single Sign-On (Okta, Azure AD, Ping), SCIM user provisioning, and role-based permissions.

If your architecture doesn't support these out of the box, deals stall in procurement for six months while you rebuild your auth layer. We design B2B SaaS products with enterprise security primitives built in from day one.

N° 02Multi-tenant architecture

Absolute data isolation. Zero cross-tenant leakage

01

PostgreSQL Row-Level Security (RLS)

Tenant isolation enforced at the database kernel level, not in fragile application-layer WHERE clauses. Even if an API endpoint has a bug, database policies guarantee a customer can never see another account's records.

02

Team & Workspace Hierarchy

Multi-level organizational structures: parent accounts, subsidiaries, departments, and custom permission groups that match how corporate buyers actually organize their teams.

03

Comprehensive Audit Logging

Immutable, append-only event logs capturing who accessed what record, when, and from which IP. Essential for SOC 2 Type II compliance and enterprise customer audits.

04

API & Webhook Infrastructure

Signed HMAC webhooks, programmatic API tokens, and rate-limiting middleware that allow your enterprise customers to integrate your SaaS into their internal automation pipelines.

N° 03Revenue architecture

Built for Net Revenue Retention. Expand within accounts

The value of B2B SaaS lies in compounding expansion revenue. We engineer billing models that grow automatically with customer usage: per-seat licenses, tiered feature gating, volume-discounted consumption, and annual invoiced contracts.

Stripe Billing and Stripe Customer Portal integrations let customers add seats, change tiers, or download tax-compliant VAT/GST invoices without generating support tickets.

N° 04White-label & custom domains

Brand sovereignty. Your customer's domain, your engine

For agency and reseller platforms, we engineer automated SSL certificate provisioning and custom wildcard subdomain routing via Vercel Edge Middleware.

Each enterprise customer can serve the platform on their own custom domain with custom logos, emails, and brand colours, while running seamlessly on your shared multitenant engine.

Selected work

Shipped, not theorised.

AdmitPortfolio B2B agency platform
AdmitPortfolio multi-tenant logins and permissions

01

AdmitPortfolio

EdTech · white-label agency platform

A B2B platform for boarding school admissions agencies replacing messy spreadsheets and insecure shared drives. Three server-enforced roles: agency admins operate high-level caseloads and billing; counselors mentor students with inline essay feedback; students build structured digital portfolios.

Every candidate receives a branded public URL with granular visibility controls, fully white-labeled to the agency's identity with zero engineering required on their part.

What we built

  • Multi-tenant data scoping: mentors only see assigned students, never the full roster
  • White-label branding engine per agency customer
  • Approval gate workflows before student dossiers are shared with institutions
  • Exportable CSV reporting and audit logs for institutional compliance
Visit admitportfolio.comOpen the live demo
Hauloport B2B SaaS logistics console
Hauloport live multi-carrier rate engine

02

Hauloport

Logistics · multi-tenant SaaS

A high-volume B2B freight management platform connecting shippers, carriers, and corporate brokers. Features role-aware dashboards, double-entry financial ledger accounting, and private pricing engines.

What we built

  • PostgreSQL Row-Level Security with six granular role tiers
  • Stripe Connect custom billing with automated carrier payouts
  • Automated background workers for document generation and status webhooks
Next.js 15React 19TypeScriptPostgreSQLPrismaStripeBullMQ
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Investment

Fixed scope. No drift.

From $28,000 — enterprise B2B SaaS MVP.

  • Multi-tenant PostgreSQL schema with kernel Row-Level Security (RLS)
  • Team, organization & workspace hierarchy with granular RBAC
  • Stripe Billing with seat management, metered usage, and invoice lifecycle
  • Enterprise SSO integration architecture (SAML 2.0 / Okta / Azure AD)
  • Immutable audit logging and security event tracking
  • Operator admin panel with tenant impersonation tooling
  • 30-day post-launch defect warranty and monitoring
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Questions

The answers we give most often.

What makes B2B SaaS development different from B2C software?
B2B SaaS requires strict data isolation (tenants, workspaces, teams), role-based permissions (owner, admin, member, viewer), enterprise authentication (SAML SSO, SCIM), compliance audit trails, and multi-tier subscription billing with invoicing support.
How do you implement SAML Single Sign-On?
We integrate SAML 2.0 and OIDC identity providers via WorkOS, Auth0, or custom Supabase Auth enterprise connections. This allows your customers to log in securely using Okta, Microsoft Entra ID (Azure AD), Google Workspace, or Ping Identity.
Is the database architecture SOC 2 compliant?
Yes. We design schemas with strict PostgreSQL Row-Level Security, automated encryption at rest and in transit, immutable audit event logs, and role-based database access, ensuring your product is primed for SOC 2 Type II attestation.
Can you build white-label capabilities into our SaaS?
Yes. We have built white-label platforms where customers operate on their own custom domains (e.g., app.clientcompany.com) with automated Let's Encrypt SSL issuance, custom branding, and tenant-scoped email notifications.
How much does a B2B SaaS build cost?
Focused B2B SaaS MVPs with team workspaces, Stripe billing, and multi-tenancy start at $28,000. Full enterprise products with SAML SSO, custom domains, and audit logging start at $50,000 to $70,000.
How long does the development process take?
Ten to fourteen weeks for an enterprise-ready MVP. We deliver working staging releases every two weeks for review and testing.

Start here

Tell us about your B2B software project.

Describe the industry workflow, target deal size (ACV), and required enterprise features (SSO, audit logs, white-labeling). We will reply with an architecture review and fixed-scope proposal.

Or email hello@designkompanie.com

Reply within two business days.

Related services

SaaS developmentMVP development servicesNext.js developmentAI application development

Next step

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B2B SaaS Development: Multi-Tenant & Enterprise-Ready