# Multi-Tenant SaaS Development Company | Live in Weeks

> Multi-tenant SaaS built by AI agents and checked by senior engineers: tenant isolation, roles, Stripe billing and an admin panel. A SaaS MVP starts at $12,500.

Source: https://eaquirstech.com/en/services/saas-development · Eaquirs Tech, AI-native software engineering partner · Updated 2026-11-09

## Highlights

- Tenant isolation checked on every request
- Stripe subscriptions and billing
- Multi-language, right to left included

## What's included

- SaaS MVP: The smallest product a paying customer will actually use, live in weeks
- Multi-tenant architecture: Shared tables with row-level isolation, or a schema per tenant when a contract asks for it
- Roles and permissions: Owner, admin and staff roles inside each tenant, re-checked on the server
- Subscription billing: Stripe plans, trials, upgrades, invoices and failed-payment retries
- Tenant and super-admin panels: Onboarding, plan limits, support access and an audit log
- Multi-language SaaS: English, Arabic and Urdu, with right-to-left layouts designed, not mirrored
- AI inside the product: Assistants, document reading and automation your customers use every day

## What one codebase serving 17 projects taught us

Turner 10 began in 2016 as software for a single housing scheme in Bahawalpur. Today one codebase runs 17 projects, and each project is its own workspace with its own users, accounts and settings. Nobody called it SaaS at the start. That is what it became, and it showed us where multi-tenant products really break.

It is rarely the screens. It is the query that forgets the tenant filter, the report that adds two clients' money together, the background job that sends one customer's reminder to another customer's list. So the tenant is checked on the server on every request, never taken on trust from the browser, and cross-tenant reads are tested on purpose before anything ships.

Billing is the other place SaaS products leak. On OpenInterview.me, a US hiring platform we took from a fragile prototype to production, the Stripe flow is idempotent: if a customer double-clicks or Stripe sends the same webhook twice, the payment is still recorded once.

## One database or one per tenant?

The first architecture question on every SaaS. There is no single right answer, only a right answer for your customers and your contracts.

| Approach | Good for | Watch out for |
| --- | --- | --- |
| Shared tables with a tenant ID | Most B2B SaaS. Cheapest to run, one migration updates everyone | Every query must carry the tenant. We enforce it in the data layer and with PostgreSQL row-level security |
| A schema per tenant | Customers who want their data kept apart without paying for a separate server | Migrations run once per tenant, so they need tooling from day one |
| A database per tenant | Hospitals, finance and contracts that require it | The highest running cost, and onboarding has to be automated |

Turner 10 keeps each project in its own workspace and re-checks access on every server call.

## What a SaaS build costs

Typical ranges from our cost estimator, with AI agents doing the repetitive work and senior engineers reviewing every change.

| Build | Typical range | Timeline |
| --- | --- | --- |
| SaaS MVP | $12,500 to $20,500 | 6 to 9 weeks |
| Custom CRM | $12,500 to $20,500 | 6 to 9 weeks |
| Marketplace App | $19,500 to $31,500 | 8 to 11 weeks |

The exact figure comes in a written plan after a call. The plan is yours to keep whether or not you build with us.

## From idea to paying customers

How a SaaS build usually runs with us.

1. **Week 1: find the job customers pay for** We map the one workflow that makes a customer reach for a card, and agree in writing what launch means.
2. **Weeks 2 to 8: build in the open** AI agents draft the boilerplate, tests and docs, senior engineers own the data model, tenancy and billing, and you see a working demo every week.
3. **Launch: billing on, first tenants in** Stripe goes live, the first customers are onboarded, and logging shows what they actually use.
4. **After launch: grow what gets used** We watch usage and errors, then build the next feature from evidence, not guesses.

## Built and running

- [Turner 10: Real Estate ERP](https://eaquirstech.com/en/work/turner10-real-estate-erp): Thirteen modules for a property developer, from the sales floor to installment recovery and double-entry accounts, across projects in English, Urdu and Arabic. Result: 13 modules · 3 languages.
- [OpenInterview.me: Hiring Platform](https://eaquirstech.com/en/work/openinterview-hiring-platform): A fragile hiring prototype rebuilt into a reliable production platform with Stripe payments, social login, interview scheduling and a LangChain AI assistant. Result: Rescued from prototype to production.
- [EHMS: Hospital Management System](https://eaquirstech.com/en/work/ehms-hospital-management): A trust eye hospital in Chishtian had software its vendor wouldn't update or fix. We built its ERP in 6 weeks, then EHMS for the web. Another hospital followed. Result: 95% faster core workflows.

## FAQ

### How long does a SaaS MVP take?

Usually 6 to 9 weeks. The first week goes on deciding the one workflow customers will pay for, and from then on you see working software every week.

### Should our SaaS be single-tenant or multi-tenant?

Most B2B products should start multi-tenant on shared tables with strict isolation, because it is cheaper to run and update. If a customer contract requires separate data, we move that customer to its own schema or database without rewriting the product.

### Can you take over a SaaS another team started?

Yes. OpenInterview.me came to us as an unstable prototype that could not safely take payments. We rebuilt it into a production platform with Stripe billing, social login and an AI assistant.

### Can our SaaS work in Arabic and other languages?

Yes. Turner 10 runs in English, Urdu and Arabic on every screen, with right-to-left layouts designed properly instead of flipped.

### Do we own the code?

Yes. The code, the data and the cloud accounts are yours from the first commit.

## Contact

- Free written project plan: https://eaquirstech.com/en#contact
- Book a free 30-minute call: https://eaquirstech.com/en/book
- Cost and timeline estimate: https://eaquirstech.com/en/estimate
- WhatsApp: https://wa.me/923322060667 (+92 332 2060667)
- Email: teams@eaquirstech.com

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