Funding › Investors

Greenfield Partners AI portfolio: 2 rounds

Rounds where Greenfield Partners led or took part, newest first. Led: 1.

1. Oligo Security raises $60M Series C, Aug 4, 2026. Security. Oligo Security provides runtime security that detects and blocks exploits in applications, cloud workloads and AI systems.
2. Patronus AI raises $50M Series B, Jun 25, 2026. AI infrastructure. Led by Greenfield Partners. Builds evaluation and simulation environments for testing and training AI agents.