Company lists · Data refreshed September 2026

Top 25 Corporate messaging agencies based in Chicago, United States

Name: Corporate messaging agencies based in Chicago, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 202 companies tracked

RevenueBase identified 202 company matches for corporate messaging agencies associated with Chicago, United States as of September 2026 and tracks 1,296 professional contacts across them, including 460 with verified work emails. Across the United States, New York is the largest hub for this category (666 companies); Chicago has 202.

This list covers company matches for corporate messaging agencies associated with Chicago, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 19, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 19, 2026 How this list was built

202Companies

1,296Contacts tracked

460Verified emails

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The 25 largest corporate messaging agencies based in Chicago, United States

Ranked by team size

Top 25 of 202 company matches for corporate messaging agencies based in Chicago, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	August Jackson	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	51-200	97 contacts →
	Exact match “August Jackson is a U.S-based event and experience marketing agency that helps communities of purpose engage their most important audiences, moving the mission forward for leading…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
2	RES Publica Group	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	11-50	80 contacts →
	Exact match “Res Publica Group is an independently owned, full-service strategic communications agency.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3	Greentarget Global Group	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	51-200	54 contacts →
	Exact match “We believe our strength is in helping clients direct-rather than react to-the ongoing conversations about them in the marketplace.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4	L.C. Williams & Associates	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	11-50	41 contacts →
	Exact match “L.C.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5	Tom, Dick & Harry	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	11-50	32 contacts →
	Exact match “Tom, Dick & Harry Creative Co is Chicago’s craft agency.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6	M. Harris & CO	Exact match	Chicago, United StatesHQ recorded Sep 19, 2026	11-50	25 contacts →
	Exact match “M.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7	Torque LTD	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	11-50	23 contacts →
	Exact match “We are brand experts who care about place and people and help them to tell their story through the marketing communications we create for them.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8	Kivvit	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	51-200	22 contacts →
	Exact match “We shape narratives, launch brands, engage audiences, and drive policy outcomes.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9	Rise Strategy Group	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	11-50	20 contacts →
	Exact match “Rise Strategy Group is a high stakes public strategy firm.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10	Reputation Partners, LLC	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	11-50	19 contacts →
	Exact match “Reputation Partners (RP) is a national strategic communications and public relations firm exclusively focused on building, protecting and restoring organizational and leadership…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11	Heron Agency	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	11-50	17 contacts →
	Exact match “Heron is an award-winning, premier lifestyle communications agency.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12	O'malley Hansen Communications	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	11-50	15 contacts →
	Exact match “O’Malley Hansen Communications is a brand-building agency with core competencies in consumer public relations, cause marketing, social media, issues & crisis management and…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13	C-Strategies INC	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	11-50	14 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14	Secret Fort	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	51-200	14 contacts →
	Exact match “We don’t build brands.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15	MAC Strategies Group, INC	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	11-50	12 contacts →
	Exact match “Mac Strategies Group is an award-winning strategic communications, public affairs, and government relations firm with offices in Chicago and Springfield, Illinois.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16	The Branded Agency	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	11-50	12 contacts →
	Exact match “The Branded Agency brings a unique mindset to strategic communications, founded on the principle of providing senior-level integrated agency services, which are otherwise…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17	Serafin & Associates, INC	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	11-50	12 contacts →
	Exact match “For more than two decades, Serafin & Associates, Inc,(Serafin) has delivered cutting-edge, full-service communications and public affairs strategies to clients seeking a trusted…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18	Dover Strategy Group	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	11-50	11 contacts →
	Exact match “The Dover Group is more than a political direct mail and digital advertising firm.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19	989group	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	1-10	11 contacts →
	Exact match “989Group is a marketing communications agency based in Chicago and New York City.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20	Vertical, Incorporated	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	1-10	11 contacts →
	Exact match “Communication.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21	Switch Agency Chicago	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	11-50	11 contacts →
	Exact match “Big things move slow.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22	Jeff Winton Associates	Exact match	Chicago, United StatesHQ recorded Sep 19, 2026	11-50	10 contacts →
	Exact match “Jeff Winton Associates is a full-service team of seasoned and proven corporate affairs and communications strategists with extensive global experience in highly diverse industries.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23	Winger Marketing	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	1-10	10 contacts →
	Exact match “What's your story?” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
24	TC Public Relations	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	1-10	10 contacts →
	Exact match “TC Public Relations is a dynamic team of communications professionals with a mission to provide excellence in public relations services.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25	Ragan Consulting Group	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	11-50	9 contacts →
	Exact match “RCG is a corporate communications consulting firm.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “corporate messaging agencies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 202 corporate messaging agencies based in Chicago, United States

See the full list, filter by size, metro and specialty, and access 460 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Corporate messaging agencies based in Chicago, United States at a glance

As of Sep 19, 2026

35.5%Verified-email coverage

6.4Average contacts per company

1-10Median size (employees)

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

153

11-50

51-200

201-500

Email recency for this list is measured across the whole United States list rather than for Chicago, so it is reported there. Company counts and contact totals on this page are exact for Chicago, over 202 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Chicago, United States whose business descriptions match “corporate messaging agencies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every displayed company carries at least one verified work email. RevenueBase tracks 460 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 19, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Corporate messaging agencies by metro in the United States

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “corporate messaging agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many corporate messaging agencies are there based in Chicago, United States?

RevenueBase identified 202 company matches for corporate messaging agencies associated with Chicago, United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

August Jackson tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most corporate messaging agencies?

New York leads the United States with 666 company records, followed by Los Angeles (233) and Washington (224). Chicago has 202.

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 460 professional contacts with verified work emails tracked across these 202 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 19, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.