›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


Mon, 06/11/2012 - 10:01 -- admin

AMEC is a Shanghai-based global semiconductor equipment company with a portfolio of advanced, high-performing wafer fabrication solutions that enable the world's semiconductor manufacturers to increase productivity and reduce their manufacturing costs. Its equipment is used to build sophisticated, nano-scale devices that provide intelligence and memory for inventive products that improve quality of life and sustain the planet.


Tue, 05/29/2012 - 13:21 -- admin

Tapjoy is changing the way people discover, share and engage using mobile applications. At Tapjoy.com, consumers receive customized application recommendations based on their current app usage, and recommendations of their friends. Tapjoy provides a turnkey advertising platform that helps developers find and monetize new, high-value users on the leading social, mobile and gaming platforms to boost revenues.

Virsto Software

Wed, 05/23/2012 - 15:21 -- admin

Virsto Software provides innovative solutions to address the growing need for cost-effective and efficient storage for virtual servers and desktops. Companies worldwide use Virsto to achieve breakthrough increases in performance, reduce storage capital and operating costs, and streamline provisioning and data management for virtual computing.


Wed, 05/09/2012 - 10:44 -- admin

Workday offers SaaS-based human capital management services as well as a cost-effective alternative to traditional ERP systems including financial management, project management and payroll. Workday had an initial public offering in 2012.


Wed, 05/09/2012 - 10:44 -- admin

SignalDemand provides predictive analytics and optimization for commodity-based value chains. Through on-demand software and services, it delivers real-time recommendations to help make complex price, supply and purchasing decisions across products, customers, channels and suppliers. Using mathematical models to process thousands of variables, SignalDemand enables better day-to-day decision-making and increased profit margins. SignalDemand was acquired by PROS in 2013.

Get Satisfaction

Wed, 05/09/2012 - 10:43 -- admin

Get Satisfaction is an online platform that powers more than 60,000 communities worldwide, helping companies build better relationships with their customers. Its solution is used by the world's best brands to improve customer support, build superior products, drive customer loyalty and build business.


Wed, 05/09/2012 - 10:42 -- admin

Founded in 2009, CarWoo revolutionizes how people buy new cars. It is the first online service that allows buyers to negotiate anonymously with multiple dealers to get the best offers on the car they want. CarWoo backs its services with a 100% “happiness guarantee” that transforms one of the world’s most dreaded shopping experiences into an easy, safe and predictable process. CarWoo was acquired by Truecar in 2014.

Aria Systems

Wed, 05/09/2012 - 10:31 -- admin

Aria Systems is a leader in subscription billing and management solutions. A pioneer in SaaS-based billing, Aria has grown rapidly to manage millions of accounts worldwide across a wide range of industries. Its Billing and Subscription Management Platform is the industry's most reliable, flexible and scalable on-demand platform for organizations looking to accelerate recurring revenue capture while reducing operating costs.


Tue, 04/24/2012 - 15:59 -- admin

C9 provides SaaS-based forecasting and pipeline management solutions that give sales managers early warning of risks and opportunities while taking the pain out of the forecasting process. Using Cloud9 helps sales managers get actionable visibility into their forecast and pipeline, increase forecast accuracy and maximize revenue.


Tue, 04/24/2012 - 15:55 -- admin

Flurry’s market-leading analytics software is in over 390,000 smartphone and tablet apps on over 1.2 billion devices worldwide, giving the company the deepest understanding of mobile consumer behavior. Flurry has turned this insight into accelerated revenue and growth opportunities for app developers, and more effective advertising solutions for brands and marketers to engage their audiences on mobile devices. Flurry was acquired by Yahoo! in 2014.


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