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SaaS agencies in Hanover compared
A SaaS product is more than a web app with a login screen. Multi-tenancy, billing, scaling, and security all need to be designed in from the start, or every later change gets expensive. These agencies build SaaS platforms from the first version through ongoing production operations, distinguishable by stack, minimum budget, and verified proof of expertise.
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Guide
What makes a SaaS product technically different
With classic custom software, there's one customer. With SaaS, there can be thousands, all on the same infrastructure, all with their own data that has to stay strictly separated. This multi-tenancy, whether through separate database schemas, a shared database with a tenant ID, or fully isolated instances, is an architectural decision that's hard to reverse later. On top of that comes billing with tiered pricing and usage metering, scaling as your user base grows, and a security concept that's built in from the first line of code.
Questions to ask before you commit
How does the agency plan to separate tenants, and why that approach specifically? A good answer names the trade-offs for your specific case, not a stock phrase. What billing logic is planned, Stripe, Paddle, or a custom build, and how are tiered pricing, trial periods, and cancellations handled? How does the architecture scale as a hundred users become ten thousand, and what does that jump cost in infrastructure? And who operates the system after launch, once the project becomes a product with daily operations?
References should show production SaaS products already live, not internal tools with a login screen bolted on. Certifications like ISO 27001 or SOC 2 are often a prerequisite for selling to larger B2B customers, and an agency that's been through that process before knows where the pitfalls are.
What building it costs
€120 to €190 per hour is typical at specialized agencies. An MVP with core functionality and simple billing runs €40,000 to €100,000. A full platform with multiple roles, integrations, and differentiated pricing tiers costs €100,000 to €300,000 and usually takes six to twelve months. After that, the real work begins: ongoing development, often with an in-house or blended team, makes up a bigger share of total cost for SaaS than it does for software built as a one-off.
What companies build SaaS platforms for
Vertical SaaS solutions for a specific industry, such as practice management or trade contractor software. Internal tools that get developed into a sellable product. Migrating an existing single-tenant application to true multi-tenancy. Building self-service onboarding with billing that doesn't require manual sales.
Find a SaaS partner
Ranked by score, with sponsored listings marked. In search, filter by stack, proof of expertise, and budget, or submit a request with your product concept.
Frequently asked questions
SaaS agencies: questions and answers
What does building a SaaS product cost?
An MVP with core functionality and simple billing costs €40,000 to €100,000, and a full platform runs €100,000 to €300,000. Agencies charge €120 to €190 per hour. Ongoing development after launch makes up a bigger share of total cost for SaaS than it does for classic software.
What does multi-tenancy actually mean?
That multiple customers share the same infrastructure while their data stays strictly separated. It's implemented through separate database schemas, a shared database with a tenant identifier, or fully isolated instances per customer. The choice depends on your data privacy requirements, expected customer count, and budget, and should be decided deliberately, early in the project.
Build it yourself or use a standard platform?
Custom development pays off for very specific requirements or when you're building a standalone product. For internal purposes, no-code or low-code platforms are often faster and cheaper. What matters most is whether you plan to sell or scale the product later, in which case a cleanly built custom solution usually pays off.
How long does it take to build a SaaS MVP?
Three to six months is realistic for an MVP with core functionality. A full platform with multiple pricing tiers and integrations takes six to twelve months. Teams that pack in too many features too early lose time that would be better spent on real user feedback.