Wallround
Berlin energy-retrofit platform for residential buildings
Kreuzbergstraße 30, 10965 Berlin
- CEO
- Lukas Steinhilber
- Founders
- Lukas Steinhilber, Tatiana Wotzasek, Henning von Oesen
- Total raised
- €4M
- Recent rounds
- August 2025 · €4M · Seed
- Founders' prior
companies - Vehiculum
- Recent evidence
Recent Operating/Customer-Project Activity · In 2025, Wallround GmbH and Berliner Jungens Development GmbH described their work on four energy-renovation projects covering more than 100 apartments. Wallround reported 110+ units; Berliner Jungens said well over 100. These are interested-party accounts, not audited metrics, and support customer-project operations only.
Scope: Wallround GmbH (Berlin, HRB 259709 B), renovation service provider. Berliner Jungens Development GmbH (Berlin, HRB 190859 B) is the customer/counterparty. Both are separately registered and separately managed publishers; their reports are interested-party accounts, not independent journalism. Current beneficial ownership comparison is unavailable. Project metrics are unaudited; no revenue, solvency or general stability claim.
Evidence reviewed 2026-10-24. This claim does not establish overall financial stability.
At a glance
Open roles over time
Month-end counts · Nov shows current open roles
2 open roles
- Berlin
- 2