GTMfund invests in early-stage B2B software and AI companies and supports them with a network of 350+ go-to-market leaders across sales, marketing and growth, plus its own media business, GTMnow, to help portfolio companies with distribution. It was founded in 2021 by Max Altschuler, founder of Sales Hacker and former VP Marketing at Outreach. It writes $1–3M checks and typically leads rounds, and its website says it is now investing at Series A. The team includes general partners Max Altschuler and Paul Irving, partners Jason Demant (Head of Networks) and Sophie Buonassisi (SVP of Marketing), and its LPs include go-to-market executives from companies such as ZoomInfo, Carta, Gong, Snowflake and OpenAI. Its portfolio of more than 130 companies includes Vanta, Writer, Gorgias, Owner.com, Lindy, Weaviate, Mutiny and CaptivateIQ, with exits to Salesforce (Regrello), Braze (OfferFit) and Trimble (Document Crunch).