| Gelb Consulting Group, Inc. Assists clients in generating market insight, product innovation, and marketing strategy using advanced analytical and research methodologies |
| Gemini Communications, Inc. Specializes in business-to-business communications consulting. |
| Go This Way Specialized in marketing and product management consulting. |
| Grant Consulting Associates, Inc. Marketing and management consultants to advertising agencies. |
| Growth Partners Business and marketing consultants for the horticulture, specialty agriculture, lawn and garden and turfgrass industries. |
| Haley Creative Full service marketing communications for sports, entertainment, manufacturing, aviation and aerospace. |
| Hanson Marketing Group, Inc. Marketing tips, strategies and techniques for consulting and technology firms. |
| High Point Communications Group, Inc. A strategic communications firm specialized in the areas of market strategy development, strategic communications, public relations, media relations, media training and presentation skills training. |
| Holt Marketing and Management Michigan based firm offers creative marketing solutions in areas of research, strategy, design, advertising and sales training. |
| Holter and Company A full service advertising, marketing, and communications agency. |