›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

Information Technology

Information Technology

Valid Logic Systems

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

Valid Logic Systems was among the first commercial electronic design automation (EDA) companies. Its initial products included hardware and software for schematic capture, logic simulation, static timing analysis, and packaging. Over the years, Valid acquired Telesis, Analog Design Tools, Calma and other companies. In 1991 Valid was acquired by Cadence Design Systems.

Lam Research

Fri, 06/15/2012 - 11:08 -- anonghost

Lam Research has been a major supplier of wafer fabrication equipment and services to the worldwide semiconductor industry for more than 30 years. As the market leader in plasma etch and a leading supplier of single-wafer clean products, Lam Research consistently delivers technically advanced, cost-effective solutions to meet the ever-expanding manufacturing requirements of the semiconductor industry.

Silicon Graphics

Fri, 06/15/2012 - 10:51 -- anonghost

InterWest was an early investor in SGI, a leader in high-performance computing. SGI delivers a complete range of high-performance server and storage solutions, along with industry-leading professional services and support.


Fri, 06/15/2012 - 09:43 -- anonghost

InterWest participated in the early financing of this established maker of
user-programmable gate arrays and associated development systems.
Xilinx's (XLNX) unique technology opened an enormous new segment in the
application-specific integrated circuit (ASIC) market and today, Xilinx is
the world's leading provider of programmable platforms.


Fri, 06/15/2012 - 09:42 -- anonghost

SpectraLinear is a pure-play integrated timing solutions company that focuses on consumer, computer, and communication markets using innovative, high-performance, fast time-to-market silicon platforms. Acquiring Cypress's PC Clock division at the end of 2006 immediately established SpectraLinear as a leader in the field. Silicon Labs acquired SpectraLinear in 2011.


Fri, 06/15/2012 - 09:41 -- anonghost

SiTera was a fabless semiconductor company that designed and built chip sets for communications and networking equipment companies. SiTera's chips were used as incremental additions to existing architectures or together as a complete system in network components such as routers and switches. The company was acquired by Vitesse Semiconductor in June 2000.


Fri, 06/15/2012 - 09:40 -- anonghost

Rendition pioneered interactive 3D graphics acceleration for PC entertainment applications. The company was based in San Jose, California, and was acquired by Micron Technology in 1998.

Power Integrations

Fri, 06/15/2012 - 09:39 -- anonghost

Power Integrations is the leading supplier of high-voltage analog-integrated circuits for energy-efficient power conversion. Its innovative technology enables compact, energy-efficient power supplies in a wide range of electronic applications, including LED lighting, cell phone chargers, computers, televisions, DVD players, set-top boxes, home appliances and telecom networking equipment. The company had an initial public offering in 1997.

Open Silicon

Fri, 06/15/2012 - 09:38 -- anonghost

Open-Silicon, is a fabless ASIC company delivering cost-effective, predictable and reliable custom ASIC solution to electronics product customers worldwide. Open-Silicon's OpenMODEL is the semiconductor industry's first end-to-end custom ASIC solution based on a business model that provides a seamless, low-cost, low-risk alternative to traditional models for complex ASIC design and development.


Fri, 06/15/2012 - 09:36 -- anonghost

InterWest was closely involved in the incubation of this company's business plan and founding. The company established itself as a successful maker of high-performance Intel-compatible x86 processors and digital electronic subsystems based on very large scale integration (VLSI) semiconductors. Cyrix was acquired by National Semiconductor in 1997.


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