Replacing Four SaaS Subscriptions with One Internal Platform in Berlin: ROI Case Study

The verdict in three sentences

Consolidating SaaS into an internal platform makes financial sense for a German SME once subscriptions pass roughly EUR 2,500 a month and staff re-key the same data between tools. In our illustrative Berlin case, a EUR 65,000 build pays back in 31 months on licence savings alone and in about 19 months when you count removed double entry. Two German specifics shape the project: EU hosting under GDPR and, where you have one, early involvement of the works council.

The starting point: four tools, EUR 3,200 a month

Illustrative example: an engineering consultancy in Berlin, 50 staff, with a stack built tool by tool.

Prices are 2026 ballpark figures for per-seat plans. US-hosted tools also force the data protection officer to document international transfers for each vendor, a recurring compliance cost that rarely appears in budget discussions.

The ROI model

Budget for 2 to 3 months of overlap when you pay for both systems; annual SaaS contracts often have notice periods of 3 months, so map renewal dates first.

Risks and how German SMEs handle them

Vendor lock-in is the main one: insist that source code, infrastructure access and documentation belong to you. GDPR requires a data processing agreement (Auftragsverarbeitungsvertrag) with your developer and host, an updated record of processing activities and a clear deletion policy. If the platform records working time or could be used to monitor performance, German co-determination rules give the works council a say, so bring them in at the specification stage rather than at go-live.

Keep commodity tools as SaaS: email, video calls, accounting, payroll. Build in-house only what encodes how your firm actually works.

As a nearshore option, Kolonell's prices for a complex custom application start at EUR 10,670 (7,000,000 FCFA) and run to EUR 22,870 and above (15,000,000 FCFA and above), with Premium maintenance at EUR 183 per month (120,000 FCFA). Hosting can remain in the EU while development is done from Dakar.

Mini case study

Illustrative example: Jonas, managing director of a 50-person engineering consultancy in Berlin. Over five years, the status quo costs about EUR 212,000 in subscriptions (assuming a 5% annual price rise) plus EUR 83,000 in double entry. The internal platform costs EUR 131,000 (build plus five years of support). The five-year gap exceeds EUR 160,000.

Jonas splits delivery: phase 1 (CRM and time tracking, 4 months), then the client portal. Two tools are cancelled after phase 1, cutting the overlap cost in half.

FAQ

When does an internal platform beat SaaS?

As a 2026 rule of thumb, above EUR 2,500 a month in combined subscriptions with significant double entry. Below that, an integration tool between existing SaaS is usually cheaper.

How long does migration take?

Plan 4 to 6 months across two phases, plus 2 to 3 months of parallel running. A big-bang switch increases user resistance.

Does hosting have to be in Germany?

GDPR requires adequate protection, not German soil, but EU hosting removes transfer assessments entirely. Many Berlin SMEs pick a German data centre for client reassurance.

What if our developer disappears?

With code, access and documentation in your hands, another team can take over after 2 to 4 weeks of onboarding. Make this the first clause you negotiate.

Is EUR 1,100 a month enough for support?

For this size of platform it covers security and 1 to 2 days of change a month. Larger features should be budgeted as separate phases.

Let's scope your project. Send us your subscription list, costs and double-entry flows, and we will price the platform in phases, support and the switch-over plan. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.