Rare Founders is one of the largest startup communities in the UK, bringing together over 24,000 founders and investors through events, curated introductions, and hands-on support designed to create real outcomes.

From Open mic pitching nights and investor dinners to hackathons, masterclasses, and London’s Largest Demo Day, Rare Founders is known for doing things differently, creating high-energy environments that move beyond surface-level networking. That includes formats like Open Mic pitching nights, where founders pitch and the audience holds waterguns, and London's Largest Demo Day, where 100 startups pitch in front of hundreds of investors in a single day.

At its core is a focus on building spaces that feel inclusive, accessible, and genuinely human, so people can show up, connect, and grow in a way that works for them.

The focus is simple: real connections, real support, real outcomes.

Rare Founders is now building SoPhy, a relationship intelligence tool based on 15 years of Social Physics research from MIT and Stanford, designed to map real business relationships and rethink how networking works.