LONDON: Huntsworth said it plans to acquire Dutko Worldwide, a public affairs and lobbying firm based in Washington, for $33.6 million as the holding company aims to expand its public affairs network in the US.

Since July 2009, Huntsworth has acquired Tonic Life Communications, Sund, and Connecting Point. It also announced a partnership with Atomic PR and a companywide restructuring that slimmed 26 agencies to four brands - Huntsworth Health, Red, Citigate, and Grayling.

"We've been wanting to expand our public ...