San Francisco venture capital firm SignalFire has secured $1 billion in fresh capital, bringing its total assets under management to $3 billion. The firm, known for its AI-powered investment strategy, plans to use the new funds to expand its early-stage bets on artificial intelligence startups.
Founded in 2013 by Chris Farmer and Ilya Kirnos, SignalFire has differentiated itself by embedding AI throughout its investment process. Its proprietary Beacon AI platform analyzes data from more than 650 million professionals and 80 million companies to identify promising startups, track industry shifts, and help portfolio companies with hiring and product development.
The capital will be deployed across SignalFire’s Seed, Early, Executive-in-Residence, and Opportunities funds, reinforcing its focus on backing founders from pre-seed through Series B. Among its most successful investments is Grammarly, the AI writing assistant used by millions worldwide. Other notable portfolio companies include Grow Therapy (mental health provider matching), Flock Freight (logistics optimization), and Stampli (AI-powered accounts payable automation).
