TreeLine Hacks Online Treeline Hacks is a 36-hour sprint where coders, designers, and makers pitch wild ideas $1,000 in prizes Winners announced 369 participants
Claude AI Hackathon - Machines of Loving Grace Cambridgeshire, United Kingdom Claude AI Hackathon run by Cambridge Claude Builder Club £300 in prizes Mar 5 – 7, 2026 40 participants
George Hacks Innovation Hackathon 2025 Washington, DC, USA Join George Hacks for a weekend of hands-on healthcare innovation, networking, and problem-solving—no coding experience needed! Free food, swag, and prizes. Sign up today! $5,500 in prizes Mar 1 – 2, 2025 93 participants