WASHINGTON — Expanding its digital offering, public affairs powerhouse SKDKnickerbocker has acquired Washington independent Seward Square Strategies — SKDK’s second acquisition in less than two months.

Seward’s founder Jason Rosenbaum will serve as managing director and president of SKDK Digital, as which he will lead the digital department’s digital fundraising, persuasion and mobilization programs.

He brings more than a decade’s experience in both politics and digital media, having led digital advertising for Hillary Clinton’s presidential campaign and Google’s election and advocacy department. His teams have raised more than $200m for candidates and causes.

Seward Square staffers Tom Walton, Kara Dailey, Madeline Groves, and Phillip Trevisan are joining SKDK as well.

SKDK said the addition of Rosenbaum and Seward’s team allows the firm to have a full suite of digital offerings.

"Jason and the Seward Square team bring expertise in digital fundraising, data analysis, media planning, and online content production to an already extensive SKDK offering. Their ability to identify, target and persuade key audiences is second to none," CEO Josh Isay said.

"There are very few people in the country with Jason's breadth of experience working at the highest levels of American presidential campaigns, at one of the world's largest technology companies, and in the major party committees. We are very fortunate to have Jason leading our digital practice at a time when candidates, companies, and organizations are trying to find the most effective way to communicate and distribute their content through social and digital channels,” he said.

SKDK’s purchase of Seward comes less than two months after its February acquisition of corporate and financial specialist Sloane & Company (the first acquisition in the agency’s history), which merged two groups led by Mark Penn.

Sloane & Company was owned by MDC Partners, which has been led by Penn since Stagwell Group, the private equity vehicle he founded in 2015, took a minority interest in MDC last year.

SKDK, meanwhile, was Stagwell's first acquisition in 2015; the fast-growing firm has been named Public Affairs Agency of the Year by PRovoke Media in four out of the last five years.