- Convent Avenue Baptist Church
- Country Living
- County of Rockland
- Courtyard by Marriott New York JFK Airport
- Courtyard Times Square South NYC
- Creative Socio Medics
- Crouse Health
- CSEA Local 1000
- Cuba Memorial Hospital
- Cummins Engine Co., Inc.
- Curbell
- Customs and Border Protections NTEU JFK Chapter 153
- Data and Marketing Association
- DeGraff Memorial Hospital
- Delhi Rehabilitation and Nursing Center
- Delphi Harrison Thermal Systems
- Destination Niagara USA
- Development Counselors International
- Discover Albany
- Discover Long Island
- Dominican College
- Donate Life Vermont
- Dresser-Rand Co.
- Dutchess County
- Earl G. Graves Ltd.
- East End Temple
- Eastern Niagara Hospital - Lockport
- Eastern Niagara Hospital - Newfane
- Ecology and Environment, Inc.
- Ecology and Environmental, Inc.-NYC, NY
- Eddy Memory Care at Marjorie Doyle Rockwell Center
- Edelman Healthcare
- Educators for Children, Youth and Families Inc. ECYF)
- Elant, Inc
- Elderwood
- Ellenville Regional Hospital
- Ellis Hospital
- Empire State Society of Association Executives
- Engelhard Hanovia, Inc.
- eni Employee Network, Inc.)
- Enterprise Rent-A-Car Hudson Valley Region
- Erie 1 Boces
- Erie Community College
- Erie County
- Erie County Medical Center
- Essence Communications Partners
- Estee Lauder
- Evercore Partners
- Fairfield Inn and Suites Buffalo Airport
- Fairway