Funding › Investors

A* portfolio: 6 rounds in AI and data

Rounds where A* led or took part, newest first. Led: 0.

1. Sail Research raises $80M Series A, Jun 25, 2026. AI infrastructure. Led by Kleiner Perkins, Sequoia. Provides an inference stack and stateful sandboxes for running long-lived AI agents.
2. Decagon raises $250M Series D, Jan 27, 2026. AI apps. Led by Coatue, Index Ventures. Builds AI agents that handle customer support conversations for enterprises.
3. Decagon raises $131M Series C, Jun 22, 2025. AI apps. Led by Accel, Andreessen Horowitz. Builds AI agents that handle customer support conversations for enterprises.
4. Cartesia raises $27M Seed, Dec 12, 2024. AI models. Led by Index Ventures. Cartesia builds real-time voice AI models, including low-latency text to speech, based on state space model research.
5. Decagon raises $65M Series B, Oct 15, 2024. AI apps. Led by Bain Capital Ventures. Builds AI agents that handle customer support conversations for enterprises.
6. Decagon raises $30M Series A, Jun 18, 2024. AI apps. Led by Accel. Decagon builds AI agents that handle customer support conversations for enterprises.