NFX is an early-stage venture capital firm specializing in network effect businesses. Founded by Pete Flint and Gigi Levy-Weiss, the firm leverages its founders' extensive experience in building and scaling companies to identify and support startups with strong network effects. NFX focuses on sectors such as gaming, generative AI, proptech, space, fintech, marketplaces, and crypto, with a geographic emphasis on Silicon Valley, Israel, Europe, and Latin America.

The firm is known for its hands-on approach, providing portfolio companies with access to a network of over 400 founders and offering proprietary software tools like Signal, Brieflink, and ChatNFX to assist in fundraising and growth. NFX's investment philosophy centers on identifying startups that can achieve rapid scaling through network effects, aiming to create enduring value in the companies they back.