B# (be sharp) is a Berlin-based venture capital fund managed by IBB Ventures. €10m reported at close (stage not stated) (source published October 2025).
Pre-seed deeptech: AI, quantum, robotics, industrial software, climate and biotech.
Amounts come from the linked public source. A first close is not the final fund size, and a reported close does not confirm that the fund is investing now. Headquarters describe where the manager is based, not where it invests.