HackEurope Ireland Europe's Largest Student Hackathon. €50,500 in prizes Feb 21 – 22, 2026 760 participants
AgentVerse Greater London, United Kingdom Collaborating with Amazon AGI SF Lab, AWS, Anthropic, Cisco, Holistic AI, Anam AI, UCL AI Foundry, Entrepreneurs First to bring together 350 of the UK’s brightest students Non-monetary prizes Nov 1 – 2, 2025 135 participants
Perplexity Hackathon @ London, UK Greater London, United Kingdom Create an internet-enabled project to inspire curiosity, seek knowledge, or reason through complex tasks. £8,000 in prizes Oct 17 – 18, 2025 86 participants
World’s Largest Hackathon presented by Bolt Online Build with AI for a shot at some of the $1M+ in prizes. $1,037,500 in prizes Winners announced 128406 participants
Meta Horizon Creator Competition: Mobile Genre Showdown Online Compete for up to 30 prizes, with a top prize of $100,000 per genre and a total prize pool of $1,000,000 $1,000,000 in prizes Winners announced 1544 participants
Agentforce Virtual Hackathon Online Build groundbreaking agents and compete for $140k in prizes $140,000 in prizes Winners announced 7207 participants
Hack Reddit 2025 Online Create a new game or experience for the Reddit community! $36,000 in prizes Winners announced 1743 participants
