Founders Lock-In
Bring one thing you want to ship. Join up to 20 builders for a weekend of focused work and a Sunday ship review.
A modern-day guild of Builders, Backers and Believers.
Where proof beats pedigree.
Relaunch begins Mon, Nov 16th.

f3 is the first true believer in a founder. A talent agency for people who start things, run as a guild of Builders, Backers and Believers.
Pick the one that fits you today.
You can wear more hats once you’re in.
The Founding 100 · 2026 only. Two years of f3, paid once. Perks, benefits & recognition for a lifetime.
IRL, Online & Hybrid.
Bring one thing you want to ship. Join up to 20 builders for a weekend of focused work and a Sunday ship review.
RBF with Sage, then raising equity.
Three stories behind why f3 exists.
Each Builder had someone who believed first.
Build one company, back another, open a door for a third.