The Foundry (Studio Sprint)

The Foundry is a free validation sprint run by Forum's studio team for people who have a B2B idea but no company yet. It was previously called Builders Between Ventures.

What you get

• Five weeks of structured validation work, remote and part-time
• A cohort of six to ten founders
• At the end, a chance for strong candidates to pitch Forum for studio funding, to build on their own, or to stay in the network

Who can apply

• Operators and domain experts with a B2B startup idea, including people who still have a job
• No cofounder, team or pitch deck is needed
• Around four to six hours a week, and willingness to talk to customers

How to apply: Use the Apply Now button on the Foundry page. Applications are reviewed on a rolling basis and shortlisted founders get an intro call. The fifth cohort was listed with applications closing on 4 November 2026 and a start on 9 November 2026.