
Mats Stigzelius
Managing Partner, Founder Factor
Co-founder of Startupbootcamp, the largest early-stage investor outside the US, having helped build and scale 1,800+ companies globally. Now Managing Partner at Founder Factor, investing in top YC startups pre-demo day, and a Partner at Rainmaking, which has built 40 startups of its own. 25 years across strategy consulting, private equity and venture building, including 15 acquisitions, refinancings and exits.
Mats Stigzelius is speaking at the Angel Investor Summit 2026 at Brighton Dome Corn Exchange on 22 September 2026 — a single-track day of talks, panels and networking for UK angel investors.
