Company lists · Data refreshed September 2026

Top 25 Government affairs consulting firms based in Chicago, United States

Name: Government affairs consulting firms based in Chicago, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 49 companies tracked

RevenueBase identified 49 government affairs consulting firms headquartered in Chicago, United States as of September 2026 and tracks 228 professional contacts across them, including 128 with verified work emails. Across the United States, Washington is the largest hub for this category (578 companies); Chicago has 49.

This list covers government affairs consulting firms 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 28, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review

49Companies

228Contacts tracked

128Verified emails

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The 25 largest government affairs consulting firms based in Chicago, United States

Ranked by team size

Top 25 of 49 government affairs consulting firms based in Chicago, United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to government affairs consulting firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Massey & Gail LLP	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	11-50	29 contacts →
	Indirect evidence “A high-powered law firm for savvy companies, Massey & Gail offers creative solutions in counseling, litigation and appeals.” Source: RevenueBase Database · checked Sep 28, 2026
2	APS & Associates	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	11-50	29 contacts →
	Partial 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 28, 2026
3	NEW Chicago Consulting LLC	Strong evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1-10	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 28, 2026
4	Conlon Public Strategies	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1-10	18 contacts →
	Partial evidence “Conlon Public Strategies is a public affairs firm dedicated to advancing the good work of nonprofits and businesses.” Source: RevenueBase Database · checked Sep 28, 2026
5	Reyes Kurson, LTD	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	11-50	13 contacts →
	Partial evidence “RK is a minority-certified firm that specializes in the dynamic intersection between business and government.” Source: RevenueBase Database · checked Sep 28, 2026
6	MAC Strategies Group, INC	Strong evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	11-50	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 28, 2026
7	Serafin & Associates, INC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	11-50	12 contacts →
	Partial 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 28, 2026
8	Government Solutions Group	Strong evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1-10	7 contacts →
	Strong evidence “Success in government affairs is based on the five Ps: People, Policy, Procedure, Politics, and Perception.” Source: RevenueBase Database · checked Sep 28, 2026
9	Elevated Campaigns & Public Affairs	Strong evidence	Chicago, United StatesHQ checked Sep 28, 2026	1-10	7 contacts →
	Strong evidence “Elevated is a public affairs and political communications consulting firm.” Source: RevenueBase Database · checked Sep 28, 2026
10	Point Of Difference Strategies	Strong evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1-10	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 28, 2026
11	DAN Shomon INC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	51-200	6 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
12	Third Reading Consulting Group	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1-10	5 contacts →
	Partial 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 28, 2026
13	Daley Strategy Group	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1-10	4 contacts →
	Partial 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 28, 2026
14	Turing Strategies	Strong evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1-10	4 contacts →
	Strong evidence “Illinois government relations and public affairs practice that unequivocally believes in the power of good public policy and collective action to improve the City of Chicago and…” Source: RevenueBase Database · checked Sep 28, 2026
15	Strategic Government Solutions, INC	Partial evidence	Chicago, United StatesHQ checked Sep 28, 2026	1-10	4 contacts →
	Partial evidence “We draw on decades of legal, regulatory, lobbying, political and public affairs experience to protect and advance businesses in heavily regulated industries such as…” Source: RevenueBase Database · checked Sep 28, 2026
16	Ignite Blue Partners	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1-10	3 contacts →
	Partial 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 28, 2026
17	The Roosevelt Group	Strong evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1-10	3 contacts →
	Strong 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 28, 2026
18	Laski Advisors INC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1-10	2 contacts →
	Partial evidence “Chicago area Consulting firm” Source: RevenueBase Database · checked Sep 28, 2026
19	GPG Strategies, LLC	Strong evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1-10	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 28, 2026
20	Mims Consulting LLC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1-10	2 contacts →
	Partial 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 28, 2026
21	1818 Legal	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1-10	2 contacts →
	Partial evidence “1818 is an Illinois law firm that works on administrative law issues and lobbies State and local governments.” Source: RevenueBase Database · checked Sep 28, 2026
22	Thames Strategies	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1-10	2 contacts →
	Partial 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 28, 2026
23	CW Strategies	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1-10	2 contacts →
	Partial 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 28, 2026
24	Chris Nybo LLC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1-10	1 contacts →
	Partial evidence “Chris Nybo LLC is a full-service government relations focused law firm.” Source: RevenueBase Database · checked Sep 28, 2026
25	Iluminara Public Affairs	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1-10	1 contacts →
	Indirect evidence “Our connections give you access to key decision makers.” Source: RevenueBase Database · checked Sep 28, 2026

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: government affairs consulting firms. 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 government affairs consulting firms.
Partial evidence: Its own public description names part of government affairs consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name government affairs consulting firms. 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 49 government affairs consulting firms based in Chicago, United States

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Government affairs consulting firms based in Chicago, United States at a glance

As of Sep 28, 2026

56.1%Verified-email coverage

4.7Average contacts per company

1-10Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 49 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 government affairs consulting firms, 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 “government affairs consulting firms”. 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 government affairs consulting firms), 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 government affairs consulting firms, 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, 128 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 28, 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.

Government affairs consulting firms by metro in the United States

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 government affairs consulting firms, 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 government affairs consulting firms are there based in Chicago, United States?

RevenueBase identified 49 government affairs consulting firms 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?

Massey & Gail LLP, headquartered in Chicago, tops this list with the largest team on record.

Which city in the United States has the most government affairs consulting firms?

Washington leads the United States with 578 headquartered companies, followed by Sacramento (103) and Austin (85). Chicago has 49.

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 128 verified decision-maker contacts tracked across these 49 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 28, 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.