Company lists · Data refreshed September 2026
Top 25 Public affairs consultancies based in Chicago, United States
RevenueBase identified 53 public affairs consultancies headquartered in Chicago, United States as of September 2026 and tracks 362 professional contacts across them, including 147 with verified work emails. Washington is the largest hub.
This list covers public affairs consultancies headquartered in Chicago, United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 14, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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.
The 25 largest public affairs consultancies based in Chicago, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 80 contacts → | ||||
Partial evidence “Res Publica Group is an independently owned, full-service strategic communications agency.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 2 | 29 contacts → | ||||
Strong evidence “APS is a full-service public affairs firm working with elected officials, corporations, non-profits, and communities to deliver positive social impact and equitable outcomes…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 3 | 20 contacts → | ||||
Partial evidence “Rise Strategy Group is a high stakes public strategy firm.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 4 | 19 contacts → | ||||
Strong evidence “New Chicago Consulting is a full-service consulting firm with expertise in campaign development, political consulting, and public affairs.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 5 | 18 contacts → | ||||
Strong evidence “Conlon Public Strategies is a public affairs firm dedicated to advancing the good work of nonprofits and businesses.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 6 | 14 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 7 | 13 contacts → | ||||
Indirect evidence “RK is a minority-certified firm that specializes in the dynamic intersection between business and government.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 8 | 13 contacts → | ||||
Strong evidence “For more than 25 years, Resolute Public Affairs and Resolute Strategic Services have helped organizations navigate complex challenges, protect their reputations and communicate…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 9 | 12 contacts → | ||||
Strong evidence “Mac Strategies Group is an award-winning strategic communications, public affairs, and government relations firm with offices in Chicago and Springfield, Illinois.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 10 | 12 contacts → | ||||
Strong evidence “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…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 11 | 7 contacts → | ||||
Partial evidence “Success in government affairs is based on the five Ps: People, Policy, Procedure, Politics, and Perception.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 12 | 7 contacts → | ||||
Strong evidence “Outreach Experts is a full-service public affairs and external relations firm with a focus on stakeholder engagement, public participation and inclusion of marginalized and…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 13 | 7 contacts → | ||||
Strong evidence “Elevated is a public affairs and political communications consulting firm.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 14 | 6 contacts → | ||||
Strong evidence “Point of Difference Strategies is a government-affairs agency, bringing together public sector experience, legal expertise, and a deep connection to diverse communities.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 15 | 6 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 16 | 5 contacts → | ||||
Indirect evidence “Third Reading Consulting Group has played central roles in shaping Illinois policy and politics for decades, maintaining strong relationships with lawmakers, members of the…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 17 | 4 contacts → | ||||
Indirect evidence “Daley Strategy finds solutions to complex lobbying matters before the Federal Government, State of Illinois and City of Chicago.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 18 | 3 contacts → | ||||
Strong evidence “A leading consultancy specializing in cultivating strategic partnerships, planning and managing complex events, devising and executing public affairs and electoral strategies…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 19 | 3 contacts → | ||||
Partial evidence “The Roosevelt Group is a full-service government affairs consultancy with decades of experience in legislative and administrative advocacy solutions.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 20 | 2 contacts → | ||||
Strong evidence “Thames Strategies is a full-service public affairs firm committed to delivering individualized strategies, tactics and solutions to a diverse clientele spanning the private…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 21 | 2 contacts → | ||||
Strong evidence “CW Strategies is a professional firm with energetic talent and a thirst for meeting clients’ needs in public relations, media outreach and legislative affairs.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 22 | 2 contacts → | ||||
Strong evidence “GPG Strategies, LLC, led by Michael Axelrod, is a boutique public affairs and government relations firm.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 23 | 2 contacts → | ||||
Indirect evidence “We are a dedicated consulting firm with policy, operational, and lived experience committed to driving social change and fostering equity.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 24 | 1 contacts → | ||||
Indirect evidence “Chris Nybo LLC is a full-service government relations focused law firm.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 25 | 1 contacts → | ||||
Indirect evidence “Our connections give you access to key decision makers.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: public affairs consultancies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names public affairs consultancies.
- Partial evidence
- Its own public description names part of public affairs consultancies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name public affairs consultancies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 53 public affairs consultancies based in Chicago, United States
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Public affairs consultancies based in Chicago, United States at a glance
As of Sep 14, 2026Companies by employee count
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 53 companies.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among public affairs consultancies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Chicago, United States whose own description of what they do matches “public affairs consultancies”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names public affairs consultancies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among public affairs consultancies, and records with no verified work email. Companies headquartered outside Chicago are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- 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 listed company carries at least one verified work email, 147 across the full list. 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 14, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Public affairs consultancies by metro in the United States
- Public affairs consultancies in Washington579
- Public affairs consultancies in Sacramento92
- Public affairs consultancies in New York84
- Public affairs consultancies in Austin64
- Public affairs consultancies in Chicago53
- Public affairs consultancies in Los Angeles51
- Public affairs consultancies in Boston45
- Public affairs consultancies in Denver41
- Public affairs consultancies in Atlanta38
- Public affairs consultancies in Phoenix35
- Public affairs consultancies in Columbus33
- Public affairs consultancies in Alexandria32
- Public affairs consultancies in Tallahassee29
- Public affairs consultancies in Albany27
- Public affairs consultancies in Raleigh27
- Public affairs consultancies in Lansing26
- Public affairs consultancies in Arlington25
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names public affairs consultancies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many public affairs consultancies are there based in Chicago, United States?
RevenueBase identified 53 public affairs consultancies headquartered in Chicago, United States as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
RES Publica Group, headquartered in Chicago, tops this list with the largest team on record.
Which city has the most public affairs consultancies?
Washington leads with 579 headquartered companies, followed by Sacramento (92) and New York (84).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 147 verified decision-maker contacts tracked across these 53 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 14, 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 Smart Search, 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.
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