SaaS development: your own cloud software platform
Build a B2B SaaS product with multi-tenant architecture, EU hosting and no per-user licence trap—developed in Germany.
SaaS Development
Why companies build their own SaaS
Off-the-shelf SaaS hits limits when your processes, data formats or regulations do not fit a generic product—or when you want to sell the platform under your brand with your pricing. Owning the product means control over features, data, hosting and roadmap without licence fees that scale linearly with seats.
Three groups benefit most: B2B vendors productising expertise, firms with niche requirements no vendor serves, and white-label projects where partners run the software under their identity. For commodity processes, buying remains smarter; our make-or-buy guide helps you decide before committing build budget.
Multi-tenant by design
Multi-tenancy must be planned early—row-level security, separate schemas or application-level isolation, audit logs and tenant-aware billing. Retrofitting tenancy is expensive. We choose the model in discovery based on tenant count, compliance and performance targets.
API-first and subscription billing
B2B buyers expect documented APIs and webhooks for ERP integration. We design API-first contracts in the workshop, not as an afterthought. Subscription tiers, trials and usage-based charges integrate via Stripe, Chargebee or custom billing where needed—see also subscription management solutions.
What a custom SaaS can deliver
Multi-tenant architecture
Many customers on one platform with strict data separation per tenant.
GDPR-ready hosting
Data in Germany or the EU—no uncontrolled third-party APIs.
Roles and SSO
Granular permissions, LDAP and single sign-on for enterprise buyers.
Analytics and reporting
Your KPIs and dashboards—not a vendor template.
White-label and domains
Custom branding and domains per tenant or partner.
APIs and integrations
REST/GraphQL, webhooks and ERP/CRM links.
SaaS development cost bands
- Lean SaaS (one core feature, web): from €25,000
- Mid-size platform (multi-tenant, payments): €50,000–120,000
- Complex ecosystem (marketplace, APIs): €100,000+
- Operations (hosting, monitoring): from ~€500/month
Validate demand first with an MVP; production SaaS builds on the same architecture when metrics justify scale.
„Own SaaS makes sense when standard software compromises your requirements or when data sovereignty is non-negotiable—not when it merely sounds modern. We help you decide with numbers.“
Multi-tenant architecture workshop before you commit build budget
Tenant isolation, billing model and API surface are decisions you want right in month one. Bring your domain model and first customer profiles—we map a realistic MVP scope, hosting approach and integration points without overselling features.
Thorsten Frieling – Project management
Frequently Asked Questions
SaaS development FAQ
Architecture, timing and hosting
How is a SaaS product different from single-tenant custom software?
Single-tenant software serves one organisation on its infrastructure. A SaaS product serves many customers (tenants) on shared code with strict data isolation, per-tenant login and often custom domains. It typically needs self-service onboarding, billing and tenant administration—architectural work you should plan on day one.
When should we build our own SaaS instead of buying?
Build when no market product fits your domain logic or compliance rules, when you want to offer the platform under your brand (including white-label), or when data sovereignty rules out US-only vendors. Buy standard SaaS for generic HR, accounting or email where mature products already exist.
How long does SaaS development take?
A first SaaS MVP with core feature and tenant onboarding usually takes three to five months. Full platforms with payments, complex roles and API ecosystems often need six to twelve months. We start with the smallest multi-tenant slice that real customers can use, then iterate from usage data.
What does GDPR-compliant hosting cost?
For smaller products (up to roughly 100 tenants, moderate load), operations including monitoring and backups often run €500–2,000 per month on EU or German hosting (Hetzner, IONOS, AWS Frankfurt, Azure West Europe). We design so sensitive data never has to leave your chosen region.
Build your SaaS platform
One conversation to see if custom SaaS is the right path—and what it realistically costs.
Start project checkSaaS development: from MVP to platform
„A saas entwicklung solution only pays off when processes, roles, and integrations are end-to-end—not another silo.“