Funding › Investors

B Capital portfolio: 3 rounds in AI and data

Rounds where B Capital led or took part, newest first. Led: 0.

1. Reflection raises $2B, Oct 9, 2025. AI models. Builds open-weight frontier AI models as an American open alternative.
2. Writer raises $200M Series C, Nov 12, 2024. AI apps. Led by Premji Invest, Radical Ventures, ICONIQ Growth. Writer builds a full-stack generative AI platform that enterprises use to create and run AI agents and workflows.
3. Lambda raises $320M Series C, Feb 15, 2024. AI infrastructure. Led by US Innovative Technology Fund. Lambda runs a GPU cloud and builds AI data centers for training and serving AI models.