GMMB, Inc. is a political communications and advertising firm based in Washington, D.C., with additional offices in Seattle and San Francisco.
[1][2] Founded by Jim Margolis, it is the largest Democratic consulting firm in the United States.
In April 2019, Senator Kamala Harris (D-CA) hired GMMB and Margolis to her team of strategists on her presidential campaign.
[12] From 2013 to 2018, GMMB worked on behalf of the Consumer Financial Protection Bureau, for which the company received approximately $43 million.
[3] Also in 2018, the firm won TVB's Excellence award for its work on behalf of Nevada gubernatorial candidate Steve Sisolak.