›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 - 10:19 -- admin

Ventritex established itself in the 1980s as a leading maker of implantable defibrillators, surgically implanted devices that automatically correct potentially lethal abnormal heart rhythms known as cardiac arrhythmias. Ventritex completed an IPO in 1993, and was acquired by St. Jude Medical in 1997.

Ventana Medical

Fri, 06/15/2012 - 10:12 -- admin

Ventana discovers, develops, and delivers medical diagnostic systems and biopsy-based cancer tests. As the leading supplier of cancer diagnostic systems to the pathology market, Ventana manufactures over 200 cancer tests for the four million people afflicted with cancer annually. Ventana completed an IPO in 1995 and was acquired by The Roche Group in 2008. The company still operates under the Ventana name.


Fri, 06/15/2012 - 10:11 -- admin

Urologix develops, manufactures and markets minimally-invasive medical products for the treatment of urological disorders. The company has developed non-surgical, anesthesia-free, catheter-based treatments that use a proprietary cooled microwave technology for the treatment of benign prostatic hyperplasia (BPH). Its less-invasive technology has been used on more than 225,000 patients, establishing Urologix as a clear leader in BPH treatment.


Fri, 06/15/2012 - 10:10 -- admin

TheraSense was a medical device company in Alameda, California developing two new product lines to dramatically change the way people with diabetes test and monitor their glucose levels. TheraSense was acquired by Abbott Laboratories in April 2004.

Spinal Dynamics

Fri, 06/15/2012 - 10:09 -- admin

Spinal Dynamics was a medical device company that developed one of the leading artificial disk implants, Aeto, to replace natural intervertebral disks damaged by degenerative joint disease. The company was acquired by Medtronic in 2002.


Fri, 06/15/2012 - 10:07 -- admin

PercuSurge pioneered a new market segment in interventional cardiology products with a series of balloon catheters designed to trap and remove the potentially harmful debris that breaks loose during balloon angioplasty and stent placement procedures. The company was acquired by Medtronic in 2000.


Fri, 06/15/2012 - 10:06 -- admin

Nanogen's advanced technologies provided researchers, clinicians and physicians worldwide with improved methods and tools to predict, diagnose, and ultimately, help treat disease. The company's products included real-time PCR reagents, the NanoChip(R) 400 electronic microarray platform and a line of rapid, point-of-care diagnostic tests. Nanogen was acquired by Epoch Biosciences in 2009.

LenSx Lasers

Fri, 06/15/2012 - 10:05 -- admin

LenSx Lasers developed a next-generation femtosecond laser that operates inside the eye to make cataract surgery safer and more effective. The founding team is the same team from IntraLase, a highly successful InterWest company that manufactured lasers for vision correction.


Fri, 06/15/2012 - 10:04 -- admin

IntraLase developed a revolutionary all-laser surgical technology that made precise surgical flaps for laser vision correction procedures that has seen enormous success in the field of refractive surgery. IntraLase had an initial public offering in 2004 and was acquired by Advanced Medical Optics in 2007. Advanced Medial Optics was acquired by Abbott Labs in 2009.

InterVentional Technologies

Fri, 06/15/2012 - 10:02 -- admin

IVT was founded in 1983 to develop new technologies and devices for use in the field of intravascular intervention in arteriosclerotic disease. The company introduced tools for use in vascular microsurgery as well as in traditional balloon dilatation intervention. The company was acquired by Boston Scientific in 2001.


Subscribe to RSS - Healthcare
Facebook Google+ Twitter Email LinkedIn Share