Atomico led Callosum’s $100M seed (Plural, DCVC, UK Sovereign AI) for heterogeneous inference — break workloads into tasks and route each to the best model/chip. Prior $10.25M February stealth round. Cerebras partnership named. Atomico has no /fund/ page here.
Aug 19–20, 2026: Castelion $1B Series C at $13B ($800M equity + $250M revolver), Rivian spinout ALSO $150M Series D, Thunder Compute $13M (YC), plus Navi, Rundoo, Network Bio, Relativity Networks, and Peeko. Centralize’s $19M is July 29, not new August tape.
Battery Ventures led Rundoo’s $30M Series B (Aug 19, 2026) with Bessemer and CRV returning — AI-native POS and ops for 500+ independent hardware, paint, lumber, and farm stores.
Ex-Nvidia Spatial Intelligence Lab lead Sanja Fidler’s Veeda AI raised more than $90M seed backed by Khosla Ventures and Radical Ventures — multimodal foundation world models to train embodied agents in simulation. Among Canada’s largest seeds. No product customers disclosed.
Unitree (688836.SH) listed August 19, 2026, raising 6.1 billion yuan (~$904M). Day-one close was 845 yuan (+460%, BBC). By August 25 shares had given back about 45% of that debut pop (Straits Times / Reuters). Do not freeze the open as a live cap.
Castelion closed a $1B Series C on August 19, 2026: $800M equity plus a $250M revolver, at $13B. JPM, a16z, and Carlyle co-led. Google still ranks the $350M Series B. Revenue was not disclosed.
