Prosek Partners acquires LA-based Muirfield Partners

The deal expands Prosek's geographic footprint by giving it 10 staffers on the West Coast.

Prosek Partners CEO Jennifer Prosek
Prosek Partners CEO Jennifer Prosek

NEW YORK: Prosek Partners has acquired Los Angeles-based Muirfield Partners to expand its geographic reach. It also named the firm’s founder, Mickey Mandelbaum, a partner.

Jennifer Prosek, managing partner of the eponymous firm, met Mandelbaum a year ago, and the two decided to join forces in part because their agencies have complimentary services. The firms also have similar client bases, made up of primarily financial and b-to-b companies.

Prosek said the deal’s primary goal is to strengthen its geographic position. It is Prosek’s second acquisition; it bought Sherman Strategic Communications in 2010 and made its founder, Russell Sherman, a partner.

"The acquisitions are about when we run into a firm that’s so special and culturally aligns with us that we feel we got to get married," Prosek said.

Prosek brought on Andy Merrill, former U.S. CEO of Finsbury, as partner a year ago to grow its events-driven business, while Muirfield "has great strength in the events-driven, transaction, crisis side [of business]," Prosek said.

Muirfield’s workforce — 10 staffers based on the West Coast — will be folded into Prosek’s ranks, bringing the New York-based firm’s headcount to 135. All of its clients will be added to Prosek’s roster, and there were no conflicts, Prosek said.

Mandelbaum received cash and equity in the firm as part of the acquisition. He declined to disclose Muirfield’s financial information.

"From our perspective, it expands our geographic reach into New York and London, and that’s so important for our clients," Mandelbaum said. "Prosek adds to our capabilities digital marketing, creative, and design services, which we were unable to offer our clients before."

Mandelbaum founded Muirfield in 2001. Its clients include Hercules Capital, TCW, Napier Park Global Capital, and On Assignment.

Previously, Mandelbaum was GM of the New York office of Connors Communications, a PR shop focused on technology and the internet. He also handled corporate communications in the U.S. for Banco Santander.

Prosek increased its revenue by 20% to $24.4 million in 2015 and boosted its headcount by 19% to 102. 

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