5AM Ventures
Abbott Biotech Ventures
Abingworth Management, Inc.
Accelerator Corporation
Access BridgeGap Ventures
Advent Healthcare Ventures
Aisling Capital
Alfidi Capital
Alta Partners
Amgen
Angel Capital Association, Life Science Angels
Apjohn Ventures
Apposite Capital
Aquilo Capital
Ascendiant Capital Partners
Astellas Venture Management LLC
ATEL Ventures
Bailard Investments
Bay Biotech Consulting
Bay City Capital
BB Biotech Ventures
Breakout Labs - The Thiel Foundation
Burrage Capital
Burrill & Company
BVF LP
BWS Financial Inc.
Capital Midwest
Capital Royalty L.P.
Cato BioVentures
CDIB Bioscience Ventures
Center for Venture Education
Charter Life Sciences
CHL Medical Partners, L.P.
Clarus Ventures
CLS Capital
CMEA Capital
Credit Suisse
Danken Ventures
DBL Investors
DFJ Mercury
EGB Advisors, LLC
Eureka! Biosciences
F.Hoffmann-La Roche AG
Franklin Templeton Investments
Frazier Healthcare Ventures
GlaxoSmithKline
Helix Ventures, LLC
HMAS, Inc.
Hold Capital
Index Ventures
Infinity Venture Group
Ingenuity Ventures
inovation ventures
InterWest Partners
JAFCO Life Science Investment
JJX Associates
JMJ Financial
Johnson & Johnson Development Corporation
Kearny Venture Partners
La Jolla Cove Investors
Leader Ventures
Lincoln Park Capital
Longitude Capital
MedImmune Ventures, Inc.
Mission Bay Capital
Morgenthaler Ventures
MP Healthcare Venture Management, Inc.
MPM Capital
Muse Capital
Mustang Ventures
New Leaf Venture Partners, LLC
Norwest Venture Partners
Numoda Capital Innovations
OrbiMed Advisors
Oxford Finance LLC
Pac-Link Bioventures
PAI
Panorama Capital
Patrick Associates
Residence Nob Hill Properties and Investments
RHS Financial
Rodman & Renshaw
RRC Bio Fund
SB Life Science
Science Futures LLC
Shire Pharmaceuticals
Skyline Ventures
Sofinnova Ventures
SR One
Stafford Capital Management
Stansberry Research
SVB Capital
Symmetry Capital
Syzygy Therapeutics
Takeda Ventures, Inc.
Tavistock
Third Security, LLC
Thomas, McNerney & Partners
TPG Biotech
triplepoint capital
VantagePoint Capital Partners
Velocity Pharmaceutical Development
venBio LLC
Venrock
Ventures West Capital Ltd.
Versant Ventures
Vista Capital Investments, LLC
Vista Partners LLC
Vivo Ventures
Warburg Pincus
Wedbush Securities
Yasuda Enterprise Development Co., Ltd.

As of 10/5/2012