SaaS development by specialists.

Custom SaaS development means you have software built that clients use as a service through their browser, for a fixed monthly amount, without installing anything. The difference with ordinary software is that a SaaS platform serves multiple clients at once from a central codebase, while each client's data stays strictly separated.

The price depends on the number of modules, the complexity of the roles and permissions, and the integrations you need with, for example, an accounting package or a payment service. A focused platform with a clear core function is cheaper than a broad platform with invoicing, time tracking, document signing and AI built in. We advise starting with the core that clients truly need and then expanding deliberately.

Our price ranges for custom SaaS development:

• Focused platform with one core module: from €15,000.
• Platform with multiple modules, roles and payments: €30,000 to €70,000.
• Broad platform with integrations, AI and document flows: €70,000 or more, depending on the scale.

The heart of a scalable SaaS platform is multi-tenant architecture. That means each client company, or each tenant, runs on the same codebase but has its own walled-off environment and data. One update reaches all your clients at once, without their data getting mixed up. Build this in only later and you almost always have to rewrite, and that is the most expensive lesson in SaaS.

We build the backend on Laravel with Filament, a combination that lets us quickly set up a solid admin environment and strong roles and permissions. The frontend runs on Next.js for speed and findability. For ClaimHandler we built a SaaS platform for loss adjusters with invoicing, time tracking, document signing and email integration, now serving clients in production. For IndexNu we delivered a multi-tenant accounting tool, and for Mahallem a platform on the same footing.

Why multi-tenant and not a separate version for each client? Because separate versions become unmanageable. With ten clients you have ten times the same maintenance, ten times the updating, ten places where something can go wrong. Multi-tenant means you improve the platform once and all clients benefit, while their data stays watertight separated.

What you get with custom SaaS development:

• Multi-tenant architecture with separated data per client.
• Roles and permissions, so every user sees exactly what is allowed.
• An admin environment to manage clients, subscriptions and settings.
• Logging and monitoring on critical flows such as payments and uploads.

Most SaaS projects get stuck because they start too broad. Someone wants everything the competitor has too, the project stretches out, and the first paying client never arrives. We cut it up. First the module clients truly need and are willing to pay for, then expand based on what users ask for in practice.

The step-by-step plan for custom SaaS development with us:

1. Defining which core module clients truly need.
2. Laying the multi-tenant foundation, with roles, permissions and separated data.
3. Building the core module, with weekly demos where you follow along.
4. Connecting payments and subscriptions, often via Mollie or Stripe.
5. Launch with the first clients and developing further on real usage.

Can I start with a small version and scale up later? Yes, and that is exactly what we recommend. Because we build multi-tenant and scalable from the first week, you do not have to rewrite anything as you grow. You start with the core and build out module by module, without the foundation slipping out from under you.

Reliability in production is not a side issue. For platforms with client data we always log on critical flows such as payments, uploads and email, with try-catch and monitoring, so a user's problem is traceable. For the choices around data processing and processor agreements we hold to the guidelines of the Dutch Data Protection Authority, see autoriteitpersoonsgegevens.nl. When your platform needs AI, we connect that to our approach to AI development.

SaaS makes sense when many companies have the same problem and are willing to pay monthly for it. That can be a niche market the big players skip over, or a process now handled with loose files and emails that is crying out for a central system. The common thread is repetition: the same problem, at many clients, solved by a platform.

A common mistake is building a platform for a market that is not asking for it. So we first think along about whether SaaS is the right form before we write a line of code. Sometimes a simpler product is smarter, sometimes the market is not yet ready. Honest advice up front saves an expensive project that nobody uses.

When SaaS is the right choice:

• Many companies have the same, recurring problem.
• Your clients are willing to pay monthly for a solution.
• The process lends itself to standardization with room for customization per client.
• You want to grow without your costs rising in step with your clients.

For the care sector we built FlexBedden, a platform that makes available beds and capacity manageable. It shows how a focused problem in a specific market produces a strong SaaS product. Want to know whether your idea lends itself to a platform? Take a look at our approach to SaaS development.