| Conclusive Strategies Market research consultants. |
| Convergenz Los Angeles-based public relations and marketing communications consultancy specializing in emerging new media, multimedia and interactive technologies. |
| Copernicus Provides marketing consulting and research services to improve business performance and build brands. |
| Creative Marketing Group Offering professional advice in strategic marketing, market entry, providing project management solutions and creative services. Offices in London, New York and Moscow. |
| Cullen Communications Public relations, copywriting, and design seminars for the graphic arts, paper and printing industries and selected consumer and business-to-business companies. |
| Cultural Imprint Offers a specialized service that provides key knowledge for brand building, new product development, identifying new segments, tailoring messages to consumers and organizational change and integration. |
| Curt Prins Minneapolis based marketing communications consultant focused of the needs of emerging business-to-business companies. |
| Customer Assurance Integrated customer relations agency. |
| D.C. Woolsey and Associates Marketing strategies to increase cash flow, return on investment and marketing success. |
| Dagg Integrated Marketing Services Offers strategic marketing planning and resources. |