Privately held by leading venture capital firms


August Capital

Founded in 1995, August Capital is a leading venture capital firm that invests in innovative technology companies. With more than 100 years of combined venture, industry and operational experience, August Capital focuses on helping outstanding entrepreneurs build large sustainable companies. August Capital has $1.3 billion under management, and has invested in more than 60 companies including Atheros, Cobalt Networks, Iridigm, Seagate,, Silicon Image and Tickle. To learn more, visit


Canaan Partners

Canaan Partners is a global venture capital firm that invests in people who turn visionary ideas into valuable and significant technology & healthcare companies. We were early investors in some of the world's leading technology companies, including Acme Packet, CommerceOne, DoubleClick, and Xirrus, as well as healthcare giants Cerexa, Dexcom, Northstar Neuroscience and Peninsula Pharmaceuticals. To learn more, visit



For 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, the InterWest team has raised $2.8B, completed more than 70 IPOs and participated in nearly 60 upside acquisitions. To learn more, visit


QuestMark Partners, L.P.

Questmark Partners, L.P. is an active late-stage private equity fund with $455 million under management. QuestMark invests in emerging growth companies with exceptional management teams and proven products and services, addressing Internet technology, communications, healthcare and consumer markets. QuestMark's principals have relevant industry knowledge, investment banking experience and a history of investing in both public and private companies. To learn more, visit


U.S. Venture Partners

U.S. Venture Partners (USVP) is a leading Silicon Valley-based venture capital firm dedicated to helping entrepreneurs build world-class companies that are leaders in their industry. USVP focuses on early stage opportunities in sectors where the Partners have the domain expertise, operating experience and a network of relationships to provide meaningful contribution to the success of the enterprise. These sectors include digital communications and networking systems, Internet and eCommerce infrastructure, semiconductors and optical components, enterprise and technical software, and medical devices and biopharmaceuticals. Since its inception in 1981, USVP has raised more than $2.5 billion in eight funds. To learn more, visit