List of advertising agencies

This is a list of notable advertising agencies and marketing groups. These agencies have a large revenue, won major national and international advertising awards or were among the earliest agencies created.

• Aegis Group
• AKQA
• Ally & Gargano (1963–1991)
• Anomaly
• Amalgamated
• BBDO
• Bernstein-Rein
• Bozell Worldwide (founded in 1921)
• Cheil Worldwide
• Cordiant Communications Group
• CORE (advertising media) (founded in 1995) in St. Louis, Missouri
• Crispin Porter + Bogusky
• Crowell Advertising (founded in 1987) in Salt Lake City, Utah
• Davidson & Belluso (founded in 2001) in Phoenix, Arizona
• DDB Worldwide
• Della Femina, Travisano and Partners
• Dentsu
• DeVito/Verdi
• D'Arcy Masius Benton & Bowles (1906–2002)
• Doyle Dane Bernbach
• Draftfcb
• Eric Mower and Associates, in Syracuse, NY
• Euro RSCG
• Fallon Worldwide
• Goodby, Silverstein & Partners
• Grey EMEA
• Grey Global Group
• GSD&M Idea City
• Havas
• Interpublic Group
• Jellyvision
• JWT
• la comunidad
• Leo Burnett Worldwide
• London Creative (founded 1997)
• The Martin Agency
• McCann Erickson
• Mother Advertising
• Neathawk Dubuque & Packett (founded in 1963)
• Omobono
• Ogilvy & Mather
• Omnicom Group
• Pappas Group
• Partners and Napier
• Publicis Groupe
• PubliGestion
• R/GA
• Razorfish
• RPMC
• Saatchi & Saatchi
• Scali, McCabe and Sloves (founded 1967, acquired by Lowe Worldwide in 1993)
• Sapient Corporation
• SHARM Holding
• StrawberryFrog
• TAXI
• TBWA Worldwide
• Tombras Group
• Tribal DDB
• Wieden+Kennedy
• WFCA Plc
• WPP Group
• Young & Rubicam
• Zubi Advertising Services

By 2005 worldwide revenue

Rank	Agency	Headquarters	Revenue (US$ millions)
1	Omnicom Group	New York City	10,481.1
2	WPP Group	London	10,032.2
3	Interpublic Group of Companies	New York City	6,700.0
4	Publicis Groupe	Paris	5,107.2
5	Dentsu*	Tokyo	2,887.8
6	Havas	Suresnes, France	1,808.0
7	Aegis Group	London	1,577.6
8	Hakuhodo DY Holdings*	Tokyo	1,364.0
9	Asatsu-DK	Tokyo	444.8
10	MDC Partners	Toronto/New York City	443.5
11	Sapient	Cambridge, Massachusetts	358.4
12	Digitas	Boston	340.5
13	aQuantive	Seattle	258.4
14	Aspen Marketing Services	West Chicago, Illinois	229.0
15	Cheil Communications	Seoul	210.7
16	Monster Worldwide	New York City	168.6
17	WB Doner & Company	Southfield, Michigan	164.3
18	Cossette Communication Group	Quebec City	164.1
19	Richards Group	Dallas	148.0
20	Bartle Bogle Hegarty*	London	128.1
21	M&C Saatchi	London	123.3
22	Chime Communications PLC	London	114.2
23	Merkle	Lanham, Maryland	108.0
24	Wieden+Kennedy*	Portland, Oregon	102.9
25	RPA	Santa Monica	102.2
26	Cramer-Krasselt	Chicago	96.2
27	ChoicePoint Precision Marketing	Alpharetta, Georgia	91.5

*estimate