advertising agency

American  

noun

• advertising agencies
  plural

1. an agency employed by advertisers to plan, design, place, and supervise their advertisements or advertising campaigns.

---

advertising agency British  

noun

1. an organization that creates advertising material, contracts for publication space, and sometimes undertakes market research on behalf of its clients

---

Other Word Forms

Noun Inflected Forms

• advertising agencies
  plural

Etymology

Origin of advertising agency

An Americanism dating back to 1840–50

Example Sentences

See Examples For:

advertising agency

Anthropic traced a fake news operation to LKM Company, a French advertising agency.

From Barron's ● Sep. 11, 2026

At 58, Susan Lee Colby founded Grace Creative LA, an advertising agency focused on the 50-and-older market, because, she said, she had “aged out” of traditional advertising agencies.

From MarketWatch ● Jul. 1, 2026

His newlywed wife quit her job at a New York advertising agency to join him.

From The Wall Street Journal ● May 4, 2026

Nicknamed the “Binoculars Building” and once the headquarters for advertising agency Chiat/Day, this building faces Main Street in Venice.

From Los Angeles Times ● Dec. 5, 2025

After the meeting I met an Irish girl who worked for an advertising agency, a girl who did social work, a schoolteacher, and the wife of a prominent university professor.

From "Black Boy" by Richard Wright