builderstack

Fideus

Modern, AI-powered tax and holding management for founders.

About

A Berlin TaxTech platform that digitalizes tax work for founders and investors - automating holding administration, deadline monitoring and document reconciliation, with tax advisors kept in the loop.

Pros
  • Built for founder & investor holdings
  • Automates recurring tax admin
  • Tax advisors integrated, not replaced
Cons
  • Germany-focused
  • Early-stage (founded 2024)
What it solves
Founders and investors struggle with slow, expensive and paper-heavy holding tax administration.
When not to use it
Skip it if you do not run a holding structure or already have a responsive digital tax advisor.

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