Omnicom Group Inc. is an American global media, marketing and corporate communications holding company, headquartered in New York City.
WPP plc is a British multinational communications, advertising, public relations, technology, and commerce holding company headquartered in London, England. It was the world's largest advertising company, as of 2019. WPP plc owns many companies, which includes advertising, public relations, media, and market research networks such as AKQA, BCW, CMI Media Group, Essence Global, Finsbury, Grey, Hill+Knowlton Strategies, Mindshare, Ogilvy, Wavemaker, Wunderman Thompson, and VMLY&R. It is one of the "Big Four" agency companies, alongside Publicis, Interpublic Group of Companies, and Omnicom. WPP has a primary listing on the London Stock Exchange, and is a constituent of the FTSE 100 Index.
FleishmanHillard Inc. is a public relations and marketing agency founded and based in St. Louis, Missouri. It was acquired by Omnicom Group in 1997, becoming part of the Diversified Agency Services (DAS) division. The company was founded in 1946 by Alfred Fleishman and Robert E. Hillard.
DDB Worldwide Communications Group LLC, known internationally as DDB, is a worldwide marketing communications network. It is owned by Omnicom Group, one of the world's largest advertising holding companies. The international advertising networks Doyle Dane Bernbach and Needham Harper merged their worldwide agency operations to become DDB Needham in 1986. At that same time the owners of Doyle Dane Bernbach, Needham Harper and BBDO merged their shareholdings to form the US listed holding company Omnicom. In 1996, DDB Needham became known as DDB Worldwide.
Razorfish, part of Publicis Groupe, is one of the world's largest interactive agencies. Razorfish provides services including web development, media planning and buying, technology and innovation, emerging media, analytics, mobile, advertising, creative, social influence marketing and search.
Ketchum Inc. is a global public relations firm, offering marketing, branding, and corporate communications services in the corporate, healthcare, food and beverage, and technology industries. George Ketchum founded the firm as a Pittsburgh-based advertising company in 1923. It later evolved to include a public relations practice. The firm is headquartered in New York City, with auxiliary offices and affiliates in North America, EMEA, Asia Pacific, and Latin America. The agency has been owned by Omnicom Group since 1996. Ketchum merged with Düsseldorf-based Pleon in one of the industry's largest mergers in 2009. It has been led by President and CEO Mike Doyle since 2020.
TBWA Worldwide is an international advertising agency whose main headquarters are in Midtown Manhattan, New York City, United States.
The Interpublic Group of Companies, Inc. (IPG) is an American publicly traded advertising company. The company consists of five major networks: FCB, IPG Mediabrands, McCann Worldgroup, MullenLowe Group, and Marketing Specialists, as well as a number of independent specialty agencies in the areas of public relations, sports marketing, talent representation, and healthcare. It is one of the "Big Four" agency companies, alongside WPP, Publicis and Omnicom. Phillippe Krakowsky became the company's CEO on January 1, 2021.
Agency.com was an interactive marketing agency based in New York City with offices worldwide. The company was a part of Omnicom Group Inc. and had approximately 500 employees in eleven offices on three continents. Services included website design and development, interactive marketing, search marketing and rich media development.
Goodby, Silverstein & Partners is an advertising agency based in San Francisco.
The Marketing Arm, also known as TMA, is a marketing and creative agency owned by Omnicom Group. With offices in New York City; Los Angeles; Chicago; Dallas; Wilton, CT; Irvine, CA; London; Manchester; São Paulo; and Shanghai. The agency specializes in strategy and execution across sports and entertainment, experiential, celebrity and influencer, digital and social, shopper and promotion, and content production.
Porter Novelli is a public relations firm, part of Omnicom Group. The company has 35 owned offices and clients in 60 countries.
Eric Austin Litman is an American entrepreneur and angel investor, and currently serves as CEO of the robotics health technology company, aescape, inc. Litman co-founded Proxicom, built Viaduct from a one-man shop through a merger with the Wolf Group, and was the founder and CEO of Medialets, a mobile ad serving and advertising analytics company acquired by WPP plc.
Proximity is a digital, direct and CRM network with 25 offices around the world. Founded in 2000, Proximity began in the digital age and has a varied portfolio of digital creative work including digital advertising, search, strategy and planning, email, data and analytics and design.
Martin Williams Advertising, Inc. is an advertising agency, based in Minneapolis, Minnesota. Since 1998, Martin Williams has been part of the Omnicom Group. Clients include Payless ShoeSource, Raymond James, Syngenta, Cargill, Marvin Windows, Simmons Bedding Company, and P.F. Chang.
24/7 Media, formerly 24/7 Real Media is a technology company headquartered in New York City and 20 offices in 12 countries, specializing in Digital Marketing. It provides for publishers, advertisers and agencies globally. It was formerly listed as "TFSM" on the NASDAQ stock exchange. The company was purchased by WPP plc in 2007 for $649 million. David J. Moore is the chairman, founder and CEO. He also served as chairman of the Interactive Advertising Bureau. In December, 2013, 24/7 Media announced it would merge with GroupM subsidiary, Xaxis.
Cheil Worldwide Inc. is a marketing company under the Samsung Group that offers advertising, public relations, shopper marketing, sports marketing, digital marketing, etc. It was established in 1973 with headquarters in Seoul, South Korea.
OMD Worldwide is a media communications agency. It is a subsidiary of Omnicom Group and an Omnicom Media Group agency considered the holding company's "media specialist brand". Omnicom Media Group is the media services division of Omnicom Group. OMD is headquartered in New York City and its chief executive officer is George Manas.
Michael Birkin is an English global marketing executive, notable for his role in developing the concept of brand valuation as well as for his involvement in global marketing operations. He began his career at Interbrand in 1987, later working at Omnicom Group and Acer Inc. He founded his own marketing services company, Red Peak Group, in 2010. He currently serves as CEO of kyu, the strategic operating unit of Hakuhodo DY Holdings.
Allen G. Rosenshine is an American advertising executive who previously served as chairman and chief executive officer of Batten, Barton, Durstine & Osborn (BBDO). He was also the founding chairman (1986-1989) of the Omnicom Group, the second largest advertising agency in the world.
