Marketing & Advertising / Advertising Agencies
| Cohn & Wolfe | New York | New York | USA | |
| Communications Plus Digital Inc | New York | New York | USA | |
| Communigraphics, Inc. | Garden City | New York | USA | |
| Compton Partners Saatchi & Saatchi | New York | New York | USA | |
| Conill Advertising, Inc. | New York | New York | USA | |
| Conrad Brink | Long Island | New York | USA | |
| Cordiant Holdings Inc. | New York | New York | USA | |
| Cox Advertising | New York | New York | USA | |
| Craig M. Cooper Productions Inc. | Baldwin | New York | USA | |
| Creative Concepts Of WNY Ltd | East Aurora | New York | USA | |
| Crowley Webb & Associates | Buffalo | New York | USA | |
| D'Arcy, Masius, Benton & Bowles | New York | New York | USA | |
| Damian Bisch & Partners Inc | New York | New York | USA | |
| Darwin Digital | New York | New York | USA | |
| DCA Advertising, Inc. | New York | New York | USA |