AT&T
Black & Vetch
Buckingham Routh Company
Burns & McDonnell
Connecticut Light and Power
Genovese and Massaro, Inc.
Mattabassett District
McPhee Utility Power
Metropolitan District Corporation (MDC)
M.J. Electric
Northeast Utilities
SBC/SNET
South Central CT Regional Water Authority
The United Illuminating Company
Wisvest Connecticut, LLC
Yale New Haven Hospital
Yale University