Insights

Impact-focused growth GMMB specializes in social impact, policy, education, health reform, and environmental issues with a track record of electing progressive leaders and advancing public interest campaigns. Sales opportunities exist in expanding strategic communications, digital advocacy, and crisis communications for nonprofits, coalitions, and progressive governance initiatives seeking broad awareness and urgent behavior change.

DEI leadership They recently appointed a Chief Diversity, Equity, Inclusion and Growth Officer, signaling a strategic emphasis on inclusive growth, workforce development, and diverse stakeholder engagement. This suggests opportunities in DEI storytelling, internal comms, and DEI-focused campaigns for corporate partners or public sector programs.

Broad issue portfolio With experience spanning health, education, environmental protection, and tobacco/drunk driving regulation, GMMB has a diversified client base and a history of tackling policy-oriented and issue-driven campaigns. Potential upsell includes cross-issue integrated campaigns, coalition-building services, and media relations across multiple public policy domains.

Strong PR recognition The agency has received PRSA Silver Anvil recognitions and a long-standing media relations footprint. This positions GMMB as a credible partner for high-profile advocacy campaigns, media training, executive positioning, and award-winning narrative development for policy-focused initiatives.

Scale and tech readiness With a mid-sized team (201-500 employees) and a tech stack including analytics, SEO, and collaboration tools, GMMB is positioned to scale digital campaigns, data-driven outreach, and measurement-driven reporting for larger campaigns or multi-channel programs, including donor engagement and public service announcements.

GMMB Tech Stack

GMMB uses 8 technology products and services including Atlassian, Google Drive, Hammer.js, and more. Explore GMMB's tech stack below.

  • Atlassian
    Application Development & Management
  • Google Drive
    Document Management Systems
  • Hammer.js
    Javascript Libraries
  • New Relic
    Real User Monitoring
  • Yoast SEO
    Search Engines
  • Google
    Search Engines
  • reCAPTCHA
    Security
  • Google Analytics
    Web Analytics

GMMB's Email Address Formats

GMMB uses at least 1 format(s):
GMMB Email FormatsExamplePercentage
First.Last@gmmb.comJohn.Doe@gmmb.com
92%
First@gmmb.comJohn@gmmb.com
5%
Last@gmmb.comDoe@gmmb.com
1%
F.Last@gmmb.comJ.Doe@gmmb.com
2%

Frequently Asked Questions

What is GMMB's phone number?

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You can contact GMMB's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is GMMB's official website and social media links?

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GMMB's official website is gmmb.com and has social profiles on LinkedIn.

How much revenue does GMMB generate?

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As of July 2026, GMMB's annual revenue is estimated to be $250M - $500M.

What is GMMB's SIC code NAICS code?

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GMMB's SIC code is 8743 - Public Relations Services NAICS code is 54182 - Public Relations Agencies.

How many employees does GMMB have currently?

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As of July 2026, GMMB has approximately 258 employees across 5 continents, including North AmericaAsiaEurope. Key team members include Vice President Of Digital Strategy: L. F.Vice President Director Of Digital Strategy: R. W.Partner: W. T.. Explore GMMB's employee directory with LeadIQ.

What industry does GMMB belong to?

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GMMB operates in the Public Relations and Communications Services industry.

What technology does GMMB use?

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GMMB's tech stack includes AtlassianGoogle DriveHammer.jsNew RelicYoast SEOGooglereCAPTCHAGoogle Analytics.

What is GMMB's email format?

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GMMB's email format typically follows the pattern of First.Last@gmmb.com. Find more GMMB email formats with LeadIQ.
GMMB logo

GMMB

Public Relations and Communications ServicesDistrict of Columbia, United States201-500 Employees

GMMB is a Washington, DC-based public relations and communications agency focused on social impact and policy-oriented work. Drawing on experience from political campaigns, nonprofits, creative agencies, and the media, the firm focuses on influencing public discourse and policy outcomes rather than commercial products. Its portfolio spans environmental protection, education and health reform, and advocacy that supports progressive leaders and legislative initiatives.

Founded in 1983, GMMB operates as a mid-sized firm in public relations and public affairs, serving advocacy groups, nonprofits, and political campaigns focused on policy change. In 2022, it announced the appointment of Sharon V. Jones as Chief Diversity, Equity, Inclusion and Growth Officer.

Section iconCompany Overview

Phone number
Website
gmmb.com
SIC Code
8743 - Public Relations Services
NAICS Code
54182 - Public Relations Agencies
Employees
201-500

Section iconFunding & Financials

  • $250M - $500M

    GMMB's revenue is estimated to be in the range of $250M - $500M

Section iconFunding & Financials

  • $250M - $500M

    GMMB's revenue is estimated to be in the range of $250M - $500M

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