G9 Ventures

Amy Griffin serves as Founder and Managing Partner and is the sole investment decision-maker. She built G9 after working as an associate at Blue Ridge Capital, the Tiger Cub hedge fund founded by her husband John Griffin. She sources, diligences, and executes all investments personally, maintaining a concentrated portfolio without an investment committee.

Griffin sources through a personal network of women founders who co-invest and refer deals back to G9. Relationships with Whitney Wolfe Herd (Bumble), Sara Blakely (Spanx), and Gwyneth Paltrow (Goop) form a reciprocal sourcing loop where founders invest in each other's rounds and bring G9 in as an aligned, fast-moving capital partner. This syndicate dynamic gives Griffin access to rounds that competitive institutional funds rarely see.

G9 invests exclusively through direct equity in early-stage companies. The firm has not publicly disclosed any fund-of-funds commitments or LP positions in external venture funds. Griffin's model relies on direct founder relationships and the signal value of her operator co-investor network rather than access through fund vehicles.