577 Main Street LLC
A123 Systems
Abbott Laboratories Inc.
Advanced Electron Beams
Alexander Technology Group 
Alteris Renewables
Amgen Inc.
Analog Devices, Inc.
Analogic Corporation
BAE Systems
Bentley University
Biogen Idec
Blitzer, Clancy & Company
Boreal Renewable Energy Development
Boston Foundation
Boston Power
Boston Scientific Corporation
Boston University
Canaccord Genuity Inc.
Carruth Capital LLC
Charles River Ventures
Choate Hall & Stewart LLP
Cognex Corporation
Deloitte Consulting LLP
Draper Laboratories
Dunn & Partners, LLC
Dynamics Research Corporation
EMD Serono
EnerNOC, Inc.
Entegris Inc.
Feeley & Driscoll
Fidelity Investments
FIRST
Fosta-Tek Optics

Foster-Miller
Fraen Corporation
GlaxoSmithKline
Goodwin Procter LLP
Greenberg Traurig, LLP
Gunderson Dettmer Stough Villeneuve Franklin & Hachigian, LLP
Harvard Pilgrim Health Care
Hewlett-Packard ProCurve
JACO Inc.
Johnson Haley LLP
Konarka Technologies
KPMG LLP
Kronos Incorporated
Lahey Clinic Hospital, Inc.
Lockheed Martin Sippican
L. S. Starrett Company
MassDevelopment
Massachusetts Port Authority
Mercury Computer Systems, Inc.
Merrimack College
Millipore Corporation
MIT Lincoln Laboratory
MITRE Corporation
MKS Instruments, Inc.
National Grid USA
North Bridge Venture  Partners
Northeastern University
NSTAR
Pegasystems
Pfizer Inc.
Philips Medical Systems
PlanetTran
PTC

Rasky Baerlein Strategic Communications
Riverside Partners
SAP Public Services, Inc.
Satcon Technology Corp.
Senior Aerospace Metal Bellows
Skyworks Solutions, Inc.
SolidWorks Corporation
SourceOne
Sovereign Bank
Stratus Technologies, Inc.
Sullivan and Cogliano Cos.
TD Banknorth Insurance Group
Teradyne, Inc.
Textron Systems 
Thermatron Engineering Inc.
Thermo Fisher Scientific
University of Massachusetts
Varian Semiconductor Equipment Associates, Inc.
Viridity
Waters Corporation
WhiteGlove House Call Health
William George Associates
Windward Investment Management
Worcester Polytechnic Institute
Wyeth Biotech
Zoran Corporation