›Portfolio Companies

Past, Present and Future Leaders

InterWest is proud and privileged to partner with visionary management teams who are shaping the future of Information Technology and Healthcare. The companies they have started are vital parts of the portfolio of industry-leading startups that InterWest has helped over the last four decades.

Our Companies


InterWest Partners Mailing Address
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PMB 44661
San Francisco, CA 94104-5401
T: 650-854-8585
F: 650-854-4706

Early stage IT and Healthcare Investing



company snapshot


Epocrates pioneered the first mobile app for physicians, enabling healthcare providers to access drug prescription and other clinical information at the point of care. InterWest was a founding institutional investor at startup, with Gil Kliman backing Stanford Business School student founders Jeff Tangney and Richard Fiedotin in a Series A financing in 1999. Jeff and Richard recruited a seasoned management team and built a premier mobile-first digital health company that obsoleted legacy clinical reference sources and became a top information resource and trusted brand among healthcare providers. With the majority of US physicians using Epocrates, the company developed a strong revenue stream from big pharma built around physician messaging, growing revenues and profitability to enable a 2011 IPO and subsequent 2013 acquisition by athenahealth. Gil served on the board from 1999 until 2011 when he partnered once again with Jeff to help him start Doximity, a current InterWest portfolio company.