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The Harbinger Group

The Harbinger Group is a Chicago-based marketing communications agency serving mission-driven organizations.

Marketing Services
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Headquarters
Chicago, Illinois, United StatesSource: RevenueBaseRetrieved October 13, 2026
Employee range
11 to 50Source: RevenueBaseRetrieved October 13, 2026
Founded
2003Source: RevenueBaseRetrieved October 13, 2026
Published list appearances
3 supported appearances ↗Source: RevenueBase lists
The company at a glance

What does The Harbinger Group do?

The agency reports 22 years of partnerships with mission-driven organizations. Its Brand Activation Marketing Model uses a tailored approach for each client, spanning analysis, strategy development, positioning, planning, activation, and continuous evaluation.

Based on the company’s public LinkedIn information, supplied through RevenueBase.

Who it serves

Its mission-driven clients include unions, associations, education organizations, nonprofits, healthcare organizations, financial services, and professional services.

What the business offers

Services & capabilities.

Marketing strategy

Develops data-driven strategies aligned with client goals, including strategic planning, brand positioning, and market research.

Source: LinkedIn company description · Retrieved October 13, 2026

Digital marketing

Provides social media management, SEO, content marketing, and email campaigns.

Source: LinkedIn company description · Retrieved October 13, 2026

Explore the business in context

Company lists.

Supported appearances on published RevenueBase lists, including available memberships beyond displayed rankings.

Positions describe ordering within each source list. See how lists are built ↗

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BADGE PREVIEWThe Harbinger Group listed #12 on Clinical communications agencies, October 8, 2026Open the published source list.
The Harbinger Group

#12 Clinical communications agencies

Snapshot: October 8, 2026

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Company information

Sources & data notes.

RevenueBase prepared this profile from the company’s public LinkedIn information and RevenueBase company data. These source records were retrieved on October 13, 2026. AI helped summarize these sources, with a separate automated check against the source text completed on November 4, 2026. Directory positions use company-contact counts from separate saved list snapshots dated August 31, 2026, October 7, 2026 and October 8, 2026. How the company lists are built.

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