Neo Hackathon 2026 San Francisco, California, USA Neo's back with our second annual Hackathon! Non-monetary prizes Nov 6 – 8, 2026 46 participants
DevFest 2025 New York, NY, USA DevFest is an annual week-long workshop series and hackathon held at Columbia University. $2,200 in prizes Feb 8 – 9, 2025 456 participants