Cofounder search is the process of identifying and recruiting a co-founder for a startup, typically through existing networks, cofounder-matching platforms, or industry events. Networks include former colleagues, school friends, and mutual introductions through trusted contacts. Platforms include Y Combinator Co-Founder Matching, CoFoundersLab, and FoundersList. Events include hackathons, founder meetups, pitch competitions, and accelerator demo days. The search is most commonly pursued by non-technical founders looking for a technical cofounder, technical founders looking for a business cofounder, or solo founders seeking general partnership. Network-based recruiting has dramatically higher success rates than platform-base...