About
For over four decades, InterWest Partners has invested in some of the world's most promising early-stage IT and healthcare start-ups, partnering with world-class entrepreneurs to build winning companies. During that time, InterWest raised $2.8 billion in ten funds, completed 97 IPOs, and participated in 95 upside acquisitions.
Our early wins in the 1980s and 1990s in IT companies such as Xilinx (semiconductors) CIENA (telecommunication) and healthcare companies like COR Therapeutics (biotechnology) and Ventritex (medical devices) allowed us to build leading investment franchises in both IT and healthcare across multiple generations of investors.
Our story culminated in our top performing and final fund, IW10, in which we invested in superbly innovative and successful companies like Doximity (digital physician networks) which alone returned one billion dollars to the fund, Canva (online design and publishing platform), Braze (customer engagement platform), Tesaro (breakthrough treatment for ovarian cancer), C3.ai (enterprise AI), Glaukos (new category therapeutics for vision-threatening eye disorders) and Labrys (novel treatment for migraine headache).
Investment criteria
Pre-seed
—
Seed
Invests
Series A
Invests
Series B
Invests
Growth
Invests
- Sectors
- Healthcare & Life SciencesSaaS & SoftwareHardware & ElectronicsVenture Capital & Private Equity
- Geographies
- Australia · Estonia · Finland · Germany · Israel · Italy · Netherlands · Norway · Singapore · Switzerland · United Kingdom · United States
- Round role
- Leads and co-leads rounds
Highlights
Highlights coming soon
Notable work and milestones will show up here.

