Partunity

​Y Combinator's Co‑Founder Matching platform is a free online service designed to help aspiring entrepreneurs find compatible co-founders. Recognizing that even the best founders may not have immediate access to potential co-founders within their personal networks, YC developed this platform to bridge that gap. It's suitable for individuals at various stages, whether they're in the early exploration phase or ready to launch a startup, and accommodates those with or without a specific idea in mind. It operates without any commitments, equity requirements, or obligations. Users create a profile detailing their backgrounds and preferences, after which YC's matching engine suggests potential co-founders who align with their criteria. If mutual interest is established, users can connect and initiate conversations. It boasts a vast network, having facilitated over 100,000 matches, with active profiles in major cities worldwide.

​FoundersBase is a networking platform where startup founders connect with co-founders, entrepreneurial talent, and early supporters to build their ventures. Members from all over the world create profiles, showcase their startup projects, and engage in direct conversations to form founding teams, find advisors and investors, or recruit startup hires. Unlike broad networking sites, FoundersBase is specifically designed for founders' needs and uses advanced profile curation technology to ensure that every connection is relevant, whether you're looking for a tech co-founder, a marketing expert, or someone to invest early support in your idea. It offers features such as finding co-founders by connecting with like-minded entrepreneurs to build your dream team and start your business, joining a startup to discover exciting projects and bring innovative ideas to life, and getting startup support by finding mentors, investors, and other supporters to help grow your business.