InterWest Partners

InterWest Partners is a Silicon Valley–based venture capital firm founded in 1979 that has historically focused on early-stage and growth investments in information technology and healthcare sectors across North America, partnering with entrepreneurs to build technology-driven companies. Over its multi-decade history it has raised multiple funds totaling billions of dollars, completed numerous IPOs and participated in many acquisitions, with notable portfolio companies spanning IT, biotech and digital health. The firm typically engaged in seed through Series A/B financings and worked closely with founders and co-investors to advance commercial development and scaling. InterWest has invested across software, infrastructure, life sciences, medical devices and related innovative technologies while providing strategic support and industry expertise. Headquartered in the San Francisco Bay Area, it operated with a concentrated team of investment professionals and played a sustained role in the U.S. venture ecosystem.