Hill & Knowlton

Hill & Knowlton, now operating under the Burson brand, was an American global public relations consulting company headquartered in New York City, founded in Cleveland in 1927 by John W. Hill and owned by WPP Group.

Where they sit

Stack tier: Ecosystem Services (A)

Marketing Agency

One of the world's largest and most storied public relations firms, now absorbed into Burson — WPP's flagship global communications group — following its 2024 merger with BCW.

Ownership

Parent: WPP plc

Competitors

B

BCW (Burson Cohn & Wolfe)

MSL

Weber Shandwick