Accel Partners

Accel Partners is a venture capital firm dedicated to helping outstanding entrepreneurs build category-defining technology companies. In order to meet this challenge with a "prepared mind," we focus the investment of over $3 billion under management in just two areas: Networking and Software.

The "prepared mind" is a deep base of domain knowledge, relevant experience and industry relationships. It's what allows the Accel team to be more responsive, add more value, and ultimately be the best partner to the very best technology entrepreneurs.

Greylock Partners

Founded in 1965, Greylock Partners is one of the world's leading venture capital firms. Over the past 41 years, Greylock has funded and helped build several hundred successful companies. The Greylock approach uniquely puts the entrepreneur first, with Greylock working as an 'invited guest' in a highly supportive yet consultative way to help entrepreneurs build market-leading companies. Companies Greylock has funded include Ascend Communications, CheckFree, Continental Cable, Decru, DoubleClick, Internet Security Systems, Ikanos, Legato, Millennium Pharmaceuticals, Openwave, Red Hat, RightNow Technologies, Tellabs, Trilogy and Wily Technology. Greylock's offices are located in the Boston area and in Silicon Valley. For more information, please visit www.greylock.com.

Meritech Capital Partners

Meritech Capital is a leading provider of late-stage venture capital to premier information and medical technology companies. With over $2.2 billion under management, Meritech seeks to lead investments in the portfolio companies of leading early stage venture capital firms. Meritech Capital pursues traditional growth companies as well as co-investments in corporate buy-outs and spin-offs.

Meritech Capital provides guidance to our portfolio companies on issues specific to maturing private companies including management incentive plans, IPO market timing and positioning, liquidity, adviser selection, and public company governance, audit and other similar requirements. Their offices are located in Palo Alto, CA.

USVP

U.S. Venture Partners (USVP) invests in a broad range of early-stage information technology companies, including those involved in wireless, IT infrastructure, semiconductors, and enterprise and technical software. Representative USVP public companies are: Sun Microsystems, SanDisk, AMCC, Verity, CheckPoint, MMC Networks, 3Dfx, Leadis, Nuance Communications, Centillium, Crescendo Communications (Cisco), Elantec (Intersil), StrataCom (Cisco), Xylan, Blue Coat Systems and Concur.

Venrock Associates

Venrock is a premier venture capital firm with offices in Menlo Park, New York, Cambridge, MA, and Israel. Originally established as the venture capital arm of the Rockefeller family, Venrock continues a seven-decade tradition of funding entrepreneurs and establishing successful, enduring companies. Having invested $1.8 billion in 400 companies resulting in over 120 IPOs over the past 38 years, Venrock's investment returns place it among the top tier venture capital firms that have achieved consistently superior performance. With a primary focus on information technology, healthcare, and energy, portfolio companies have included Intel, Apple Computer, StrataCom, Check Point Software, and DoubleClick; Sirna Therapeutics, Centocor, Idec Pharmaceuticals, Sugen, Millennium Pharmaceuticals, and Illumina. For more information, please visit Venrock's website at www.venrock.com.