Company lists · Data refreshed September 2026

Top 25 Public affairs consulting firms based in the United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 3,446 companies tracked

RevenueBase identified 3,446 public affairs consulting firms headquartered in the United States as of September 2026 and tracks 36,627 professional contacts across them, including 17,958 with verified work emails and 15,971 with mobile numbers. Washington is the largest hub.

This list covers public affairs consulting firms headquartered in the 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 5, 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 5, 2026 86% judged on-target in blind review

3,446Companies

36,627Contacts tracked

17,958Verified emails

15,971Mobile numbers

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The 25 largest public affairs consulting firms based in the United States

Ranked by team size

Top 25 of 3,446 public affairs consulting firms based in the United States, ranked by team size, largest first. Data refreshed Sep 5, 2026. RevenueBase Smart Search rates how each company's information relates to public 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	Taft Stettinius & Hollister LLP	Indirect evidence	Cincinnati, OH, United StatesHQ checked Sep 5, 2026	1,001-5,000	1,980 contacts →
	Indirect evidence “At Taft, we work as one team, driven and committed to helping you succeed.” Source: RevenueBase Database · checked Sep 5, 2026
2	FGS Global	Indirect evidence	New York, NY, United StatesHQ checked Sep 5, 2026	1,001-5,000	1,814 contacts →
	Indirect evidence “FGS Global is the strategic leadership advisory for a complex world.” Source: RevenueBase Database · checked Sep 5, 2026
3	APCO	Indirect evidence	Washington, DC, United StatesHQ checked Sep 5, 2026	1,001-5,000	1,578 contacts →
	Indirect evidence “APCO is a global advisory and advocacy firm helping organizations build the un/common ground upon which progress is made.” Source: RevenueBase Database · checked Sep 5, 2026
4	Hill & Knowlton	Indirect evidence	NY, United StatesHQ checked Sep 5, 2026	1,001-5,000	1,450 contacts →
	Indirect evidence “Hill & Knowlton is a strategic and creative partner to drive breakthrough opportunities for growth and value creation, advance corporate strategy, and build reputation capital and…” Source: RevenueBase Database · checked Sep 5, 2026
5	Bracewell LLP	Indirect evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	501-1,000	933 contacts →
	Indirect evidence “Bracewell LLP is a leading law and government relations firm.” Source: RevenueBase Database · checked Sep 5, 2026
6	Brownstein Hyatt Farber Schreck	Indirect evidence	Denver, CO, United StatesHQ checked Sep 5, 2026	501-1,000	902 contacts →
	Indirect evidence “For decades, we’ve positioned ourselves at the intersection of law, business and policy to bring a multidisciplinary strategy to every issue.” Source: RevenueBase Database · checked Sep 5, 2026
7	Fredrikson & Byron, P.A	Indirect evidence	Minneapolis, MN, United StatesHQ checked Sep 5, 2026	501-1,000	834 contacts →
	Indirect evidence “At Fredrikson, we’ve built a reputation as the firm “where law and business meet” by bringing business acumen and entrepreneurial thinking to our work with clients, and by…” Source: RevenueBase Database · checked Sep 5, 2026
8	Sodali & CO	Indirect evidence	New York, NY, United StatesHQ checked Sep 5, 2026	501-1,000	431 contacts →
	Indirect evidence “Sodali & Co advises corporate clients worldwide as they navigate the complex dynamic of shareholder and stakeholder interests.” Source: RevenueBase Database · checked Sep 5, 2026
9	DDC Public Affairs	Strong evidence	Washington, DC, United StatesHQ checked Sep 5, 2026	51-200	411 contacts →
	Strong evidence “DDC Public Affairs builds communities of advocates that impact policy and win campaigns.” Source: RevenueBase Database · checked Sep 5, 2026
10	Mercury Public Affairs, LLC	Indirect evidence	New York, NY, United StatesHQ checked Sep 5, 2026	51-200	390 contacts →
	Indirect evidence “Mercury is a national bipartisan government relations and strategic communications firm.” Source: RevenueBase Database · checked Sep 5, 2026
11	DKC	Strong evidence	New York, NY, United StatesHQ checked Sep 5, 2026	201-500	349 contacts →
	Strong evidence “DKC is a full service public relations, marketing and government affairs firm and part of the Acceleration Community of Companies, Based in New York City, and with offices in Los…” Source: RevenueBase Database · checked Sep 5, 2026
12	Berlinrosen, An Orchestra Company	Indirect evidence	New York, NY, United StatesHQ checked Sep 5, 2026	201-500	302 contacts →
	Indirect evidence “Built to operate with the speed and intensity of a political campaign, BerlinRosen takes a 360-degree approach to communications, activating audiences and elevating story above…” Source: RevenueBase Database · checked Sep 5, 2026
13	Bully Pulpit International	Indirect evidence	Washington, DC, United StatesHQ checked Sep 5, 2026	51-200	282 contacts →
	Indirect evidence “Bully Pulpit International (BPI) is an outcomes agency at the intersection of business, politics, and policy.” Source: RevenueBase Database · checked Sep 5, 2026
14	Cornerstone Government Affairs	Strong evidence	Washington, DC, United StatesHQ checked Sep 5, 2026	201-500	255 contacts →
	Strong evidence “Cornerstone Government Affairs is a full-service, bipartisan, employee-owned firm specializing in government relations and lobbying, public affairs, strategic communications, and…” Source: RevenueBase Database · checked Sep 5, 2026
15	BGR Group	Indirect evidence	Washington, DC, United StatesHQ checked Sep 5, 2026	51-200	243 contacts →
	Indirect evidence “The Services You Need BGR Group offers an integrated suite of bipartisan lobbying, strategic communications and advocacy solutions that help meet challenges in a risky…” Source: RevenueBase Database · checked Sep 5, 2026
16	SKDK	Partial evidence	Washington, DC, United StatesHQ checked Sep 5, 2026	51-200	220 contacts →
	Partial evidence “SKDK provides strategic advice, public relations, crisis communications, advertising, direct mail, and research to national and international companies, advocacy organizations…” Source: RevenueBase Database · checked Sep 5, 2026
17	Richard Attias & Associates	Indirect evidence	New York, NY, United StatesHQ checked Sep 5, 2026	51-200	213 contacts →
	Indirect evidence “OUR VISION: To empower governments, corporations and civil society to lead, inspire, and drive impact on a global scale.” Source: RevenueBase Database · checked Sep 5, 2026
18	AVŌQ	Indirect evidence	Washington, DC, United StatesHQ checked Sep 5, 2026	201-500	205 contacts →
	Indirect evidence “Excellence isn’t enough.” Source: RevenueBase Database · checked Sep 5, 2026
19	DCI	Strong evidence	Washington, DC, United StatesHQ checked Sep 5, 2026	51-200	198 contacts →
	Strong evidence “DCI Group is an independent public affairs consulting firm that specializes in public relations, crisis management, grassroots engagement, and digital advocacy.” Source: RevenueBase Database · checked Sep 5, 2026
20	Plus Communications	Indirect evidence	Arlington, VA, United StatesHQ checked Sep 5, 2026	201-500	188 contacts →
	Indirect evidence “Strategy + Execution = Results.” Source: RevenueBase Database · checked Sep 5, 2026
21	Dga-Albright Stonebridge Group	Indirect evidence	Washington, DC, United StatesHQ checked Sep 5, 2026	51-200	187 contacts →
	Indirect evidence “Albright Stonebridge Group (ASG) is part of DGA Group, a global advisory firm that helps clients protect – and grow – what they have built in today’s complex business environment.” Source: RevenueBase Database · checked Sep 5, 2026
22	Lilly & Company	Indirect evidence	Austin, TX, United StatesHQ checked Sep 5, 2026	n/a	187 contacts →
	Indirect evidence “Since its inception, Lilly & Company has built a unique and comprehensive strategy for providing the best possible services available in political fundraising and grassroots…” Source: RevenueBase Database · checked Sep 5, 2026
23	Global Strategy Group	Strong evidence	New York, NY, United StatesHQ checked Sep 5, 2026	51-200	179 contacts →
	Strong evidence “Global Strategy Group is the go-to public affairs, communications, and research partner for companies, causes, and campaigns.” Source: RevenueBase Database · checked Sep 5, 2026
24	Mcallister & Quinn	Partial evidence	Washington, DC, United StatesHQ checked Sep 5, 2026	51-200	170 contacts →
	Partial evidence “McAllister & Quinn is a Washington, DC consulting firm that provides a comprehensive range of services to a diverse group of clients with issues before the federal government.” Source: RevenueBase Database · checked Sep 5, 2026
25	Invariant	Indirect evidence	Washington, DC, United StatesHQ checked Sep 5, 2026	51-200	166 contacts →
	Indirect evidence “Invariant is a bipartisan business advisory firm, providing strategic advice to companies, trade associations, non-profits, and individuals on how to make Washington work for them.” Source: RevenueBase Database · checked Sep 5, 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: public 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 public affairs consulting firms.
Partial evidence: Its own public description names part of public 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 public 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 3,446 public affairs consulting firms based in the United States

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Public affairs consulting firms based in the United States at a glance

As of Sep 5, 2026

49.0%Verified-email coverage

43.6%Mobile-number coverage

10.6Average contacts per company

1-10Median size (employees)

20.8%Largest-city concentration · Washington

Sep 5, 2026Page data refreshed

Companies by employee count

1-10

2,752

11-50

574

51-200

201-500

501-1,000

1,001-5,000

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

16,7600–30

1,12331–60

761–90

290–180

66180+

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 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 the United States whose own description of what they do matches “public 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 public 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 public affairs consulting firms, and records with no verified work email. Companies headquartered outside United States 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, 17,958 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 5, 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 consulting firms by metro

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 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 public affairs consulting firms are there based in the United States?

RevenueBase identified 3,446 public affairs consulting firms headquartered in the 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?

Taft Stettinius & Hollister LLP, headquartered in Cincinnati, tops this list with the largest team on record.

Which city has the most public affairs consulting firms?

Washington leads with 717 headquartered companies, followed by New York (129) and Sacramento (116).

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 17,958 verified decision-maker contacts tracked across these 3,446 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 5, 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.