Lightsage raises $4M to build the growth stack for software’s newest customer

Lightsage, a San Francisco startup, secured $4 million to develop an Agent-Led Growth stack that enables software to be selected by AI agents. Nexus Venture Partners led the round, with angel investors including former Salesforce CTO Steven Tamm, Postman CEO Abhinav Asthana, Apollo CEO Matt Curl, and DocuSign president Robert Chatwani. The funding supports Lightsage’s platform for AI-driven customer acquisition.