SaaS Products · Decided at the schema, not retrofitted.

Multi-tenant architecture

The short answer

Multi-tenancy is an architectural decision with a long tail. webbox picks the model against your isolation, compliance and cost requirements: shared-schema with row-level security for scale and low cost, schema-per-tenant as the middle ground, database-per-tenant where a regulated customer requires it. We then build tenant-aware routing, migrations and isolation tests so the boundary holds under change.

Last updated 8 Aug 2026

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What you get

How it works

Model selection

Shared-schema, schema-per-tenant or database-per-tenant, chosen on isolation requirements and cost per tenant rather than on habit.

Isolation tests

Automated tests that attempt cross-tenant access on every build, so the boundary is verified continuously rather than assumed.

Tenant-aware operations

Migrations, backups, restores and per-tenant data export that work at a hundred tenants instead of only at three.

Questions

Multi-tenant architecture: FAQ

Which tenancy model is right for us?

Shared-schema with row-level security fits most products and keeps per-tenant cost low. Move to schema or database per tenant when a customer contractually requires physical separation, or when tenants differ enormously in size. It is a cost and compliance trade, and we walk you through both sides.

Can you retrofit multi-tenancy onto our existing app?

Often, yes, though it is real work and honest scoping matters. We start with an audit of where tenant identity would have to be threaded through, and give you the cost before you commit.

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