Kleiner Perkins Caufield & Byers www.kpcb.com

Since its founding in 1972, Kleiner Perkins Caufield & Byers has backed entrepreneurs in 475 ventures, including AOL, Align, Amazon.com, Citrix, Compaq Computer, Electronic Arts, Genentech, Genomic Health, Google, IDEC Pharmaceuticals, Intuit, Juniper Networks, Netscape, Lotus, LSI Logic, Sun Microsystems, Symantec, Verisign, and Xilinx. More than 150 of the firm's portfolio companies have gone public. Many other ventures have achieved success through mergers and acquisitions. KPCB has broadly invested in both life sciences and information technology since inception in 1972. In the last few years, KPCB has expanded its focus to include Greentech and pandemic preparedness.

HealthCare Ventures www.hcven.com

HealthCare Ventures is a leading venture capital firm specializing in life science industry investing. At HealthCare Ventures we invest primarily in early-stage companies. Since 1985, we have maintained a constant objective to support entrepreneurs and to generate above average returns for our limited partners. Over the past 22 years, HealthCare Ventures has raised $1.6 billion in eight funds, and has invested in more than 80 companies. Notable HealthCare Ventures investments include public companies such as Critical Therapeutics, Dendreon Pharmaceuticals, Human Genome Sciences, LeukoSite, MedImmune, Middlebrook Pharmaceuticals, OraSure, Replidyne, Inc., Shire Pharmaceuticals, Verenium Corp, and Vicuron Pharmaceuticals.