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GMMB
Washington, D.C., United States · Founded 1983
51-200 employees
Sourced & current · updated Jul 30, 2026
GMMB is a Washington, D.C.-based full-service political and social issue advertising agency known for crafting high-impact campaigns for Democratic candidates, causes, and nonprofits.
Where they sit
Marketing AgencyPerformance Marketing
One of the top Democratic political advertising and communications agencies in the United States, with decades of presidential and major campaign experience.
Ownership
Parent: Finsbury Glover Hering