BUILD Halloween Hacks Online Join the BUILD Halloween Hacks this October 1-October 31, 2025 for a spooky community hackathon! $9,717 in prizes Winners announced 228 participants
AI Innovation Challenge Online Innovate AI Ideas Non-monetary prizes Winners announced 76 participants
Eurekathon 2025 - Low/No Code & Prizes for all participants Online A 5-week global innovation challenge blending science fairs and hackathons. Research or code your way to innovation across multiple STEM tracks! Code, research and win prizes! $35,774 in prizes Winners announced 237 participants