B2B SaaS Development

B2B SaaS Built for Enterprise Buyers

Multi-tenant, SSO-ready, audit-logged from day one. We build the SaaS posture enterprise procurement teams ask about — not the consumer-style apps that fail vendor questionnaires at week 6 of the sales cycle.

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What We Build

B2B SaaS Foundations

The boring features that actually unlock enterprise sales — built from the start so you do not retrofit them later.

True Multi-Tenancy

Per-tenant data isolation, schema-per-tenant or row-level security depending on scale. Tenant onboarding, branded subdomains, and per-tenant feature flags.

SSO & Identity

SAML 2.0 and OIDC integration with Okta, Azure AD, Google Workspace, and JumpCloud. SCIM provisioning for user lifecycle. Required by every enterprise customer above £20k ARR.

Role-Based Access Control

Granular permissions, custom roles, and tenant-admin self-service. Audit log for every permission change. The flexibility enterprise admins expect.

Audit Logs & Compliance

Immutable audit trail of every user action, system event, and admin change. Export to SIEM tools, retention policies, and the documentation your customers’ security teams ask for.

Subscription Billing

Stripe Billing or Chargebee for tiered plans, seat-based pricing, usage metering, annual commitments with monthly invoicing, and quote-to-cash flows for enterprise procurement.

API & Webhooks

Public REST/GraphQL API with proper auth (OAuth 2.0 or API keys), rate limiting, webhook delivery with retries, and an OpenAPI spec your customers can hand to their integrators.

Procurement Reality

What Enterprise Procurement Actually Asks

Get these wrong and your sales cycle stalls at vendor questionnaire. Get them right and procurement signs in days, not months.

Security & SOC 2

Even pre-SOC 2, enterprise customers expect penetration test results, encryption at rest and in transit, role-based access, and an incident response plan. We architect for SOC 2 readiness from day one so when you decide to certify, the gap is smaller.

Data Residency & GDPR

EU customers want EU data residency. UK customers want UK data residency. We build with region-aware deployment so a single tenant can be pinned to a region, with the documentation for your customer’s DPA.

Contractual & Operational Posture

DPA terms, sub-processor lists, uptime commitments backed by real monitoring, status pages, and disaster recovery plans. We help you draft the procurement documents customers will hand to legal.

Pricing

What This Costs

Three rough tiers. Every quote is fixed-price after a free scoping call. All include design, development, testing, deployment and source code handover.

B2B SaaS MVP

From £15,000

Multi-tenant SaaS MVP with the basics enterprise prospects expect. 5-7 weeks delivery.

  • Multi-tenant architecture
  • Auth + invites
  • Role-based access (basic)
  • Stripe subscription billing
  • Audit log
  • 30 days post-launch support
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Procurement-Ready

From £30,000

Everything you need to win £20k+ ARR contracts: SSO, audit, controls. 10-12 weeks delivery.

  • Everything in MVP
  • SSO (SAML + OIDC)
  • SCIM provisioning
  • Custom roles
  • Status page + SLA monitoring
  • API + webhooks
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Enterprise Platform

From £55,000

Complete B2B SaaS designed for enterprise procurement and SOC 2 readiness. 16-20 weeks delivery.

  • Everything in Procurement
  • Region-aware deployment
  • Per-tenant feature flags
  • Quote-to-cash flows
  • SOC 2 architecture
  • Penetration test prep
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FAQ

Frequently Asked Questions

Because retrofitting it is brutal. We have rebuilt single-tenant codebases into multi-tenant architectures — it usually costs 2-3x what it would have cost to build right from the start. We design tenant boundaries on day one so your data model, auth, billing, and operations all assume multiple customers from minute zero.
The first prospect that asks — usually somewhere between £10k and £30k ARR. Most enterprise customers will not even sign a pilot without SSO. Building it costs ~£5,000-£8,000 if you architected for it; ~£15,000-£25,000 if you have to retrofit. We recommend including basic SAML support in your MVP if your sales motion targets even mid-market.
Yes. SOC 2 is mostly about controls, documentation, and consistent operations — not specific tech. We architect with the controls in mind (access reviews, change management, audit logs, encryption, vendor management) and provide the technical documentation your auditor will need. Achieving certification is a separate process with a SOC 2 firm; we make the technical side painless.
Stripe Billing for most builds — seat-based, tiered, usage-metered, or hybrid. Chargebee for cases needing complex revenue recognition (ASC 606) or quote-to-cash workflows. Both integrate with Stripe for payments and with accounting tools (Xero, QuickBooks).
Yes. We build with public APIs from day one (OAuth 2.0, rate limited, OpenAPI documented), webhooks with delivery retries and dead-letter queues, and an integration sandbox for your customers’ engineers to test against.
A multi-tenant MVP starts at £15,000 (5-7 weeks). A procurement-ready platform with SSO, RBAC and audit runs £30,000-£55,000 (10-12 weeks). Full enterprise builds with region-aware deployment and SOC 2 architecture start £55,000+ (16-20 weeks).
Building a B2B SaaS?

Ship a SaaS That Wins Enterprise

Tell us about your product and target customers. We’ll architect for the procurement posture they expect, and come back within 24 hours with a fixed-price quote.

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