Advanced Technology Ventures is an American venture capital firm founded in 1979 and based in Menlo Park, California, with additional offices including Boston, Massachusetts. The firm manages institutional capital to invest primarily in early-stage and growth-oriented technology companies across sectors such as IT infrastructure, software, healthcare, cleantech and related markets. ATV typically participates in seed through later rounds alongside co-investors to support emerging companies in scaling operations and achieving commercial traction. Its investment approach emphasises backing entrepreneurial teams with technologies positioned for long-term market impact. The firm’s portfolio spans a range of enterprise and healthcare innovations in North America and select international opportunities.