Founders Network Fund is a San Francisco-based venture capital firm affiliated with Founders Network, backing pre-seed and seed startups in the United States from its invite-only tech founder community and pipeline. It invests exclusively in Founders Network members, typically writing $25,000 to $250,000 checks, and does not lead rounds or take board seats. Its portfolio and sector exposure include B2B SaaS, data and sales software, AI/analytics, cybersecurity, healthtech, HR tech, mobility and energy.