›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

Early stage IT and Healthcare Investing




Fri, 06/15/2012 - 09:49 -- HolaKo

Corixa was formed in 1994 to develop vaccines and therapeutic products for cancer and infectious diseases based on novel approaches to immunization, stimulation, and culture of cytotoxic T cells and T helper cells. Corixa had an initial public offering in 1997, then was acquired by GlaxoSmithKline in 2005.

COR Therapeutics

Fri, 06/15/2012 - 09:48 -- HolaKo

COR was funded to develop and commercialize innovative pharmaceutical products for the treatment and prevention of severe cardiovascular diseases, such as unstable angina, acute ischemic coronary syndrome and stroke. COR went public in 1991 and was acquired by Millennium in 2001.

Cell Genesys

Fri, 06/15/2012 - 09:47 -- HolaKo

Cell Genesys is focused on the development and commercialization of biological therapies for patients with cancer. The company is currently pursuing two clinical-stage product platforms — GVAX(R) cancer immunotherapies and oncolytic virus therapies. Ongoing clinical trials include GVAX immunotherapy for prostate cancer, GVAX immunotherapy for pancreatic cancer and leukemia, and a CG0070 oncolytic virus therapy for bladder cancer.


Fri, 06/15/2012 - 09:46 -- HolaKo

Aspreva identified, developed and commercialized new indications for approved drugs and late-stage drug candidates for patients living with uncommon diseases. Aspreva had an initial public offering in 2006, then was acquired by Galenica Group in 2008 and was integrated into its Vifor Pharma business unit.

CNS Therapeutics

Tue, 06/12/2012 - 10:25 -- HolaKo

Founded by recognized leaders in intrathecal therapies, CNS Therapeutics developed and brought to market safe, high-quality pharmaceuticals for site-specific delivery to the central nervous system. CNS was acquired by Covidien in 2012.

Xenon Pharmaceuticals

Mon, 06/11/2012 - 11:20 -- HolaKo

Xenon (XENE) is a clinical genetics-based drug development company. Independently and through partnerships with leading global pharmaceutical companies, Xenon identifies and validates new targets for drug development and converts that knowledge into innovative and differentiated medicines. Its programs focus on indications of important unmet medical needs, including pain, anemia, iron overload, metabolic and cardiovascular disease.


Mon, 06/11/2012 - 11:17 -- HolaKo

USDS independently evaluates medical laboratory diagnostic tests to validate quality, speed development, assure alignment with regulatory requirements, guide regulatory pathway strategy, and inform reimbursement decisions. The performance, intended use, and risk assessment of diagnostic tests are certified through the company’s DxSTANDARDS process, which uses standards and methods based on the consensus of regulatory, industry, and academic experts.

Trius Therapeutics

Mon, 06/11/2012 - 11:17 -- HolaKo

Trius Therapeutics (TSRX) is a biopharmaceutical company focused on the discovery, development and commercialization of innovative antibiotics for serious, life-threatening infections. The company is addressing the need for novel therapeutics to treat multi-drug-resistant bacterial infections as they become more resistant to currently marketed drugs. Trius was acquired by Cubist in 2013.

Paratek Pharmaceuticals

Mon, 06/11/2012 - 11:15 -- HolaKo

Paratek Pharmaceuticals (PRTK) is a pharmaceuticals company focused on the discovery, development, and commercialization of medicines designed to save lives and alleviate suffering. Our lead product candidate, omadacycline, is a new tetracycline-derived, broad-spectrum antibiotic being developed as a first-line monotherapy for serious community-acquired bacterial infections where antibiotic resistance is of concern.


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