A SaaS development company for your first subscribers.
Your idea works in the hands of a few customers, held together by manual work. We turn it into a multi-tenant product that bills its customers and keeps each one’s data apart, with AI features they will actually use. The code is yours from the first release.
Before
- Customers onboarded by hand
- Invoices sent from a spreadsheet
- One database for everyone, and the fear of mixing data
- AI features promised on every call, still not shipped
After
- Self-service sign-up and onboarding
- Subscriptions and invoices handled by the billing system
- Each customer’s data isolated, tested at every release
- AI features measured before they reach customers
What does a SaaS development company do?
A SaaS development company designs, builds and runs software sold as a subscription: a multi-tenant product where each customer gets its own account and isolated data, with sign-up, billing, permissions and updates delivered to everyone at once. The good ones also help you decide what to build first, and hand you code you can grow on.
The hardest parts of a SaaS product sit under the features customers see: tenant isolation, subscription billing, permissions, upgrades without downtime and the security review from your first large customer. We build those foundations first, so the features can move fast on top of them.
AI is on many SaaS roadmaps. We treat it like any other feature: it ships once it has been measured on real customer data, its costs are tracked per customer, and users can see and correct what it produces.
Where we pick up SaaS products.
Three typical starting points, shown as scenarios, and what the product looks like once it is built to grow.
From a first version to a real product
BeforeA first version that won its early customers, built fast and now slowing every release.
AfterA rebuilt core with tenants, billing and automated tests, migrated customer by customer.
From a service business to a product
BeforeAn expertise sold as consulting, with internal tools only your team can use.
AfterA product your customers use on their own, with your know-how built into its rules.
Adding AI to an existing SaaS
BeforeCustomers asking for AI, and a roadmap that keeps pushing it back.
AfterAI features shipped on your current stack, measured on real data, with costs tracked per customer.
A product your first large customer will accept.
Security and dataTenant isolation, tested.
Each customer’s data is kept apart, and automated tests try to cross the line at every release.
Ready for security questionnaires.
Access logs, encryption and documented practices, for the questionnaire your first large customer will send.
EU hosting when you need it.
For customers who ask where their data lives.
The code and the rights are yours.
Intellectual property assigned to you in the contract, repository and documentation handed over.
AI costs under control.
Model usage tracked per customer, so AI features never quietly eat your margin.
From your product today to paying customers.
Before any build
Decide what matters first
We look at your customers, your current product and your usage data, then fix the scope and the price of the first release in writing.
Foundations
Tenants, billing, security
Accounts, permissions, subscriptions and isolation come first, with the tests that protect them.
Each release
Ship, measure, adjust
Short release cycles, with usage data telling you what to build next.
As you grow
Your own team takes over
When you hire developers, we onboard them on the code and hand over the documentation, at the pace you choose.
Building your SaaS: in-house team, freelancers or a SaaS development company?
Many SaaS companies combine the three over time. The real question is who carries the foundations while you find your market.
| Criterion | SaaS development company | Freelancers | In-house team from day one |
|---|---|---|---|
| Getting started | A team ready at once | Fast for one profile | Hiring takes time |
| Architecture, security, billing | Covered by one team | Depends on who you find | Depends on your first hires |
| Continuity | Documentation and handover planned | At risk if a freelancer leaves | Strong once the team is in place |
| Cost profile | Scope and price fixed per release | Daily rates, variable | Salaries, fixed |
| Code ownership | Yours, assigned in the contract | Yours if the contract says so | Yours |
| Best for | Reaching paying customers, then hiring | A well-defined piece of work | After the product has found its market |
SaaS development: the questions buyers ask us
Can you take over a product built by another team or with no-code?
Yes. We start with an audit of the code, the data and the architecture, then decide with you what to keep, rework or rebuild. Your customers keep using the product during the transition.
Who owns the code and the intellectual property?
You do. The contract assigns you the rights on the code we write, and the repository, documentation and deployment scripts are handed over. You are free to continue with another team.
Do you handle billing and subscriptions?
Yes. We integrate a payment provider such as Stripe for subscriptions, trials, usage-based pricing and invoices, and connect it to your accounting. Plan changes, failed payments and reminders are handled by the product, without anyone sending an invoice by hand.
Can you add AI features to our existing SaaS?
Yes, on your current stack. Each AI feature is tested on real customer data before release, with its costs tracked per customer and a way for users to correct what it produces.
Do you only work with startups?
No. We also work with established companies turning an internal tool or an expertise into a product, and with software vendors modernizing an older product while keeping their current customers on board.
Where is the product hosted?
Where your customers need it: in the EU for European customers, or in the region of your choice. Hosting, monitoring and backups can stay with us or move to your team.
What building a SaaS product depends on.
A SaaS product is budgeted release by release. One plan for one type of customer keeps the first release light; several plans, integrations and mobile apps make it heavier. Each release has its scope and price fixed in writing before it starts.
Read the custom software cost guide, SaaS included- 01Where you start: an idea, a first version or a product in use.
- 02The number of roles, plans and integrations.
- 03Billing: subscriptions, usage-based pricing, invoicing.
- 04The security and compliance your customers require.
- 05The AI features and their usage volume.
- 06Web only, or mobile apps as well.
For the next stage of your product
- Custom software development Everything we build, from internal tools to products.
- MVP development When the product still has to prove its market.
- Custom software cost guide Market ranges for SaaS and custom software.
- Knowledge assistant demo An AI feature answering from documents, with sources.
- How we work Our method, step by step, with what you receive.
Ready to turn your product into a business that renews every month?
Tell us where the product stands and who pays for it today. We reply within one business day to book your free 30-minute assessment, and tell you what we would build first.