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Advertising Company

GMMB

US communications agency running campaigns for political candidates, government programmes, nonprofits and social causes

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About GMMB

GMMB is an American strategic communications agency that works for candidates and organisations pushing for change on public issues. Its people have worked on Capitol Hill, in political campaigns, nonprofits and creative agencies, and in the media. It takes on work in government, health care, social justice and climate.

What GMMB offers

  • Paid media and analytics — planning and buying advertising and measuring how it performs.
  • Campaign messaging — new messages to mobilise supporters or reach policymakers.
  • Creative and storytelling — campaign creative and stories for causes and brands.
  • Events and speeches — conference support and speech delivery.
  • Brand work — refreshing or rebuilding an organisation's brand.

Who it works with

Its work includes enrolment campaigns for the Maryland Health Benefit Exchange, service recruitment for AmeriCorps, early childhood systems work with the BUILD Initiative, projects with AIR and Gridworks, and presidential campaigns for Joe Biden, Barack Obama and Bill Clinton.

Key facts

  • Based in: United States
  • Sectors: politics, government, US health care, corporate social impact, climate and social justice

Profile written by TrustList from the business's own published information, Sep 2026.

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