Custom software development — a product team, shipped as a service — for Professional Services

Professional-services firms — accounting, tax, law, audit, management consulting — share an unusual operational pattern: their product is hours of expert time, their cost base is people, and their margin lives or dies on utilisation, write-offs, and pricing discipline. Most mid-size firms in DACH and the wider EU still run on a mix of a 15-year-old practice-management system, a fleet of Excel spreadsheets, and the personal organising systems of senior partners. The buying pattern is conservative — partners are also owners, and they spend their own money — but increasingly forced by talent attrition: younger associates and managers will not stay at firms where the tooling is 20 years behind their consumer experience.

• ▸Practice management platforms (Datev, Wolters Kluwer, etc.) are the system of record — don't replace them, integrate around them.
• ▸Client portals that show real engagement progress (not just file exchange) are now a differentiator in pitches.
• ▸Internal knowledge-management is underbuilt across the industry — searchable precedent libraries are a competitive advantage in 2026.
• ▸Pricing tools that enforce engagement-letter standards reduce write-offs more than any rate change.
• ▸Audit log everything — both for compliance and for the eventual "who edited this opinion at 2am" forensic question.
• ▸Build for senior-partner usability — your software's adoption ceiling is whether the equity partners actually use it.

For a 60-person tax advisory firm, we built an internal pricing and engagement-letter tool that reduced write-offs from 14% of billed time to 5.8% in the first year — a 1.4M EUR margin improvement on a 17M EUR revenue base.