7	Tech Coast Angels	Laguna Hills, CA
6	Stonehenge Capital Company	Baton Rouge, LA
5	Edison Venture Fund	Lawrenceville, NJ
5	HIG Capital Management	Miami, FL
5	New Enterprise Associates	Baltimore, MD
5	Sequoia Capital	Menlo Park, CA
4	Benchmark Capital	Menlo Park, CA
4	Polaris Venture Partners	Waltham, MA
4	Redpoint Ventures	Menlo Park, CA
4	Safeguard Scientifics Inc.	Wayne, PA
3	Advantage Capital Partners	New Orleans, LA
3	Altos Ventures	Menlo Park, CA
3	Ascend Venture Group LLC	New York, NY
3	Capital Resource Partners	Boston, MA
3	Carlyle Group	Washington, DC
3	Core Capital Partners	Washington, DC
3	Draper Fisher Jurvetson	Menlo Park, CA
3	Expansion Capital Partners LLC	San Francisco, CA
3	Goldman Sachs & Co.	New York, NY
3	Intel Capital	Santa Clara, CA
3	Milestone Venture Partners	New York, NY
3	Oak Investment Partners	Westport, CT
3	Sierra Ventures	Menlo Park, CA
3	SV Life Sciences Advisers	Boston, MA
3	Ticonderoga Capital Inc.	Wellesley, MA
3	Trillium Group LLC	Pittsford, NY
3	Updata Partners	Reston, VA
3	Village Ventures	Williamstown, MA
3	vSpring Capital	Salt Lake City, UT
2	Accel Partners	Palo Alto, CA
2	Adams Street Partners LLC	Chicago, IL
2	Advanced Technology Ventures	Waltham, MA
2	Advent International	Boston, MA
2	Alta Communications	Boston, MA
2	ATA Ventures	Redwood City, CA
2	Atlas Venture Ltd.	Waltham, MA
2	Band of Angels	Menlo Park, CA
2	Battery Ventures L.P.	Waltham, MA
2	Boulder Ventures Ltd.	Owings Mills, MD
2	Braemar Energy Ventures	New York, NY
2	Celerity Partners	Los Angeles, CA
2	Chrysalis Ventures	Louisville, KY
2	Claremont Creek Ventures	Oakland, CA
2	Columbia Capital LLC	Alexandria, VA
2	D.E. Shaw Technology Ventures	New York, NY
2	Diamondhead Ventures L.P.	Menlo Park, CA
2	Emigrant Capital	New York, NY
2	Foundation Capital	Menlo Park, CA
2	Frontier Capital LLC	Charlotte, NC
2	Gael Partners LLC	Davis, CA
2	Greycroft Partners	New York, NY
2	HLM Venture Partners	Boston, MA
2	Ignition Partners	Bellevue, WA
2	JMI Equity	Baltimore, MD
2	Kleiner Perkins Caufield & Byers	Menlo Park, CA
2	Kodiak Venture Partners	Waltham, MA
2	Long River Capital Partners LLC	Hadley, MA
2	Matrix Partners	Waltham, MA
2	Maveron LLC	Seattle, WA
2	Meritage Private Equity Funds	Denver, CO
2	Morgan Stanley Private Equity	New York, NY
2	Northwest Technology Ventures	Portland, OR
2	Norwest Venture Partners	Palo Alto, CA
2	Nth Power	San Francisco, CA
2	Origin Ventures LLC	Northbrook, IL
2	Pequot Capital Management Inc.	Westport, CT
2	Pharos Capital Group LLC	Dallas, TX
2	Prudent Capital	Washington, DC
2	Rockport Capital Partners	Boston, MA
2	Salix Ventures	Nashville, TN
2	Sigma Partners	Menlo Park, CA
2	Spencer Trask Ventures Inc.	New York, NY
2	Startup Capital Ventures LLC	Los Altos, CA
2	Steelpoint Capital Partners	New York, NY
2	Technology Partners	Palo Alto, CA
2	Total Technology Ventures LLC	Atlanta, GA
2	Tullis-Dickerson & Co. Inc.	Greenwich, CT
2	VantagePoint Venture Partners	San Bruno, CA
2	Veronis Suhler Stevenson	New York, NY
2	Warburg Pincus LLC	New York, NY
2	Wheatley Partners	Great Neck, NY
2	Worcester Capital Partners LLC	Worcester, MA