›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


467 First Street, Suite 201
Los Altos, CA 94022, USA
T: 650-854-8585
F: 650-854-4706

Early stage IT and Healthcare Investing

Jeff Tangney

Jeff Tangney



"We make physicians more productive and successful by connecting them online—a tricky task that requires an understanding of health care, technology and regulations. With InterWest, we found solid partners with investment, health care and technology expertise under one roof."
Jeff Tangney, CEO

Doximity is the leading professional network for U.S. physicians, with more than one million members and over 80% of doctors as members. With Doximity, physicians can use their iPhone, iPad, Android device or computer to securely connect and collaborate with other doctors about patient treatment, identify appropriate experts for patient referrals, and manage their careers with the help of the company’s staffing and recruitment resources. More recently, Doximity has added functionality to allow doctor members to perform telemedicine visits with their patients. The company was founded by Jeff Tangney while an Entrepreneur-in-Residence at InterWest, and InterWest was Doximity’s first institutional investor. Doximity’s strong track record of rapid revenue growth combined with impressive profitability enabled the company to execute on a highly successful NYSE IPO in June 2021. Managing Partner Gil Kliman has played a lead investor role since inception and continues to serve on Doximity’s board of directors post-IPO.

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