InterWest Partners

Contact Details

InterWest Partners
Main Office
2710 Sand Hill Road Second Floor
Menlo Park, California 94025
Phone: +1 (650) 854-8585
Fax: +1 (650) 854-4706
InterWest Partners
Other Office
13455 Noel Road 16th Floor, Two Galleria Tower
Dallas, Texas 75240
Phone: +1 (972) 392-7279

Corporate Profile

Registration country: 
United States
Overview 
For more than 30 years InterWest has partnered with exceptional entrepreneurs to build winning technology and life sciences companies. With more than 200 years of combined operating and investing experience, our team has raised $2.8B, completed more than 70 IPOs, and participated in nearly 60 upside acquisitions. As we invest InterWest X, a $650M fund, we continue to believe that providing capital is just the beginning of a long-term collaboration with entrepreneurs to turn their vision into a thriving company.

Funds managed / advised

Fund Curr Amount Fund type Year Status
InterWest Partners I LP USD 33,700,000 venture 1979 Final Closing
InterWest Partners II LP USD 54,800,000 venture 1982 Final Closing
InterWest Partners III LP USD 64,700,000 venture 1985 Final Closing
InterWest Partners IV LP USD 110,000,000 venture 1989 Final Closing
InterWest Investors V USD 1,100,000 venture 1993 Final Closing
InterWest Partners V LP USD 175,000,000 venture 1993 Final Closing
InterWest Partners VI LP USD 175,000,000 venture 1996 Final Closing
InterWest Investors VI USD 5,500,000 venture 1997 Final Closing
InterWest Investors VII USD 12,000,000 venture 1999 Final Closing
InterWest Partners VII LP USD 250,000,000 venture 1999 Final Closing
InterWest Investors QVIII USD 21,500,000 venture 2000 Final Closing
InterWest Investors VIII USD 6,000,000 venture 2000 Final Closing
InterWest Partners VIII LP USD 750,000,000 venture 2000 Final Closing
InterWest Partners IX LP USD 600,000,000 venture 2004 Final Closing

Investment Preferences

Investment stage: Early-stage
Industry focus: Information Technology and Life Science

Sample Investments

Company Profile Amount Industry Ctry Stage Date
APT Pharmaceuticals Inc A pharmaceutical company focused on repurposing well-characterized drugs for under-served populations. USD Pharmaceuticals US Series A Sep 2008
ARCA biopharma Inc Drug discovery based on pharmacogenomics of heart disease. Pharmaceuticals US
AccelChip Inc Electronic Equipment US
Achates Power Inc Provider of internal combustion engines for passenger and commercial vehicle transportation industries. Auto Parts US Series A Oct 2009
Active Power Inc Electronic Equipment US
Advanced Micro-Fabrication Equipment Inc Semiconductor manufacturing equipment in China USD Semiconductors US Series B 6th Oct 2006
Aerogen Medical device and drug delivery company Medical Equipment US
Airspan Networks Inc Fixed Line Telecommunications US
AkaRx Inc Pharmaceuticals US Jan 2010
Alfalight Inc Designer and manufacturer of high-power diode lasers for the industrial, defense and telecommunications markets. Electronic Equipment US
Alvine Pharmaceuticals Inc An innovative biopharmaceutical company developing biologics to target autoimmune/inflammatory diseases. Pharmaceuticals US
Ample Communications Inc Supplier of merchant silicon used in the development of high-speed communications equipment. Semiconductors US Other venture Jan 2005
Applied Genetic Technologies Corp A gene therapy company that designs, packages and delivers therapeutic genes to treat a variety of medical illnesses using the adeno-associates virus. Biotechnology US
Applied Science Fiction Inc Developer of proprietary technologies for the photo imaging industry. US
Archus Orthopedics Inc Spinal and orthopedic implant and instrument company. Medical Equipment US Series C Jan 2008
Aria Systems Inc Billing and subscription management software company. Software US Series C Feb 2011
Aryaka Networks Inc Provider of cloud-based application acceleration and WAN optimization with true business results. Software US
Aspreva International Ltd Pharmaceuticals CA Series A
Autonomic Technologies Inc Medical Equipment US
Avaak Inc Developer and marketer of an ultra low power integrated wireless video sensor platform. Electronic Equipment US

Current employees

Name Job title Office
James Campbell Executive in Residence - Life Sciences Menlo Park
Berry Cash General Partner - Information Technology Menlo Park
Bruce Cleveland General Partner - Information Technology Menlo Park
Keval Desai Partner-Information Technology Menlo Park
Chris Ehrlich General Partner-Life Sciences Menlo Park
Doug Fisher Menlo Park
Charline Gauthier Executive in Residence - Life Sciences Menlo Park
Philip Gianos General Partner - Information Technology Menlo Park
Drew Hoffmann Executive in Residence - Life Sciences Menlo Park
Stephen Holmes General Partner and Chief Operational Officer Menlo Park
Nina Kjellson General Partner-Life Sciences Menlo Park
Gil Kliman General Partner-Life Sciences Menlo Park
Susan Knox Consultant-Life Sciences Menlo Park
Ron Nash Executive in Residence - Information Technology Menlo Park
Khaled Nasr Partner-Information Technology Menlo Park
Arnold L Oronsky General Partner-Life Sciences Menlo Park
Doug Pepper General Partner - Information Technology Menlo Park
Tom Rosch General Partner - Information Technology Menlo Park
Gordon Saul Executive in Residence - Life Sciences Menlo Park
Karen Wilson Chief Financial Officer Menlo Park

RECORD ID: 29639