One product, many customers — without customers getting into each other's data.

A SaaS product is a different engineering problem from an internal tool, even when the feature list looks similar. Every screen has to answer "which tenant is this?" correctly, every query has to be scoped, and a bug that leaks one customer's data into another's view is not a bug you get to have twice.

We've built multi-tenant platforms from the first commit and added multi-tenancy to systems that started single-customer. The second is harder — it means finding every place tenancy was assumed rather than enforced.

The founders we work with usually have the product vision already. What they need is the account model, billing, and permissions layer built correctly enough that adding customer forty doesn't mean revisiting decisions made for customer one.

What SaaS needs that internal tools don't

Accounts & billing

Plans, seats, trials, upgrades and dunning — the part every SaaS product needs and most underestimate.

Tenant data isolation

Every query scoped by tenant at the data layer, not trusted to application code to remember.

Usage metering

If pricing is usage-based, the meter has to be as reliable as the invoice it feeds.

Onboarding & self-serve

A new customer should be productive without a call with your team.

Admin & support tooling

Your own team needs to see what a customer sees, without every engineer having database access.

Uptime & monitoring

You find out about an outage from an alert, not from a customer's email.

Multi-tenancy model

We default to a shared database with a tenant column enforced by row-level security or query filters baked into the data access layer, not left to each developer to remember. It's the option that scales cleanly to hundreds of tenants without hundreds of databases to migrate.

Where compliance or scale genuinely requires it, we'll separate specific tenants into their own database or region — but that's a decision made deliberately, not a default.

Drop a multi-tenancy diagram

Questions we get asked

Which billing provider do you use?

Usually Stripe — it covers subscriptions, metered billing and dunning without us building payment infrastructure from scratch.

Can you add multi-tenancy to an existing product?

Yes, though it's a bigger job than greenfield — we audit every query and access path for places tenancy was assumed rather than enforced.

Do you build the marketing site too?

If you want us to — it's a smaller effort once the product's design system exists. Otherwise we hand off a clean API and embed points.

What does infrastructure cost at launch?

A typical early-stage SaaS product runs $150–$400 a month on Azure before meaningful customer volume, scaling with usage from there.

Building a product, not a project?

Tell us who the customers are and what they pay for. We'll map the foundations.

Discuss your SaaS→