Ogilvy & Mather Worldwide does advertising by the book. Founded by ad pioneer David Ogilvy (author of Ogilvy on Advertising), the firm is one of the world's leading creative agency networks, providing advertising campaign development and management, brand development, public relations, and strategic planning services to clients such as American Express, IBM, and Motorola. Ogilvy & Mather offers specialized communications and relationship marketing services through OgilvyOne; its Ogilvy CommonHealth Worldwide unit offers services targeted for global clients in the health care industry. Operating through more than 450 offices around the world, it is one of the primary agency subsidiaries of UK-based WPP Group.

Ogilvy CommonHealth Worldwide is a global healthcare communications network serving clients in our 64 offices across 33 countries. We provide a full continuum of “For the Life of the Brand™” services to the healthcare industry including advertising and promotion, brand identity and development, global integration, direct-to-consumer, direct-to-patient, relationship marketing, digital/interactive services, managed care marketing, medical education, media planning and buying, clinical trial recruitment, market research and analytics, strategic consulting, and public affairs and relations. We view the communication of knowledge and information as vital to the effective performance of brands. Our ambition is to raise and activate the full 360-degree value of these communications, connecting distinctive insights and ideas to create brands that deliver their commercial potential.

OLSON was founded in 1992 by John and Cindy Olson. OLSON + Co. wants to ensure your brand remains distinctive. The full service marketing agency creates integrated marketing campaigns, offering such services as public relations, interactive marketing, design, brand strategy, advertising, and product development. Its client list has included a mix of regional and national names, such as the Detroit Pistons, Red Wing Shoe Company, and the University of Minnesota. In mid-2010, the agency achieved growth by merging with Denali Marketing, another marketing agency. The deal formed OLSONdenali, its dedicated practice specializing in loyalty marketing.

Omnicom Group Inc. (NYSE: OMC) is a leading global advertising and marketing communications services company. Omnicom's branded networks and numerous specialty firms provide advertising, strategic media planning and buying, digital and interactive marketing, direct and promotional marketing, public relations and other specialty communications services to more than 5,000 clients in more than 100 countries. As a strategic holding company, Omnicom manages a portfolio of global market leaders comprised of three global advertising agency networks, BBDO, DDB and TBWA; numerous leading national advertising agencies; a global network of more than 175 marketing services companies; and a media group, Omnicom Media Group, that includes two of the world's premier providers of media planning and buying services. Our companies offer services in over 30 marketing communications disciplines across more than 200 strategic brand platforms.

Established in 1997, One to One has helped such clients as Motorola, Nextel, and Unisys create their online marketing campaigns. One to One Interactive specializes in providing Internet marketing services by the numbers. Through several operating units, One To One Interactive company offers marketing, creative, and technology services to companies in such industries as financial services, life sciences, media, telecommunications, and technology. One to One's services include segmentation and predictive modeling, new media planning and buying, e-mail marketing, and search engine optimization. It also provides various creative (visual design, copywriting), advisory, and software development services.

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