Company lists · Data refreshed September 2026

Top 25 Public affairs consulting firms based in the United States

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, how directly it supports the match, 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 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 HQ checked on every row Match evidence 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
Unlock all 3,446 companies Free signup · no credit card · 500 free credits

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. Evidence rates how directly each company's own description names public affairs consulting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1Cincinnati, OH, United StatesHQ checked Sep 5, 20261,001-5,0001,980

“At Taft, we work as one team, driven and committed to helping you succeed.”

Source: company website · checked Sep 5, 2026
2
FGS GlobalIndirect evidence
New York, NY, United StatesHQ checked Sep 5, 20261,001-5,0001,814

“FGS Global is the strategic leadership advisory for a complex world.”

Source: company website · checked Sep 5, 2026
3
APCOIndirect evidence
Washington, DC, United StatesHQ checked Sep 5, 20261,001-5,0001,578

“APCO is a global advisory and advocacy firm helping organizations build the un/common ground upon which progress is made.”

Source: company website · checked Sep 5, 2026
4
Hill & KnowltonIndirect evidence
NY, United StatesHQ checked Sep 5, 20261,001-5,0001,450

“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: company website · checked Sep 5, 2026
5
Bracewell LLPIndirect evidence
Houston, TX, United StatesHQ checked Sep 5, 2026501-1,000933

“Bracewell LLP is a leading law and government relations firm.”

Source: company website · checked Sep 5, 2026
6Denver, CO, United StatesHQ checked Sep 5, 2026501-1,000902

“For decades, we’ve positioned ourselves at the intersection of law, business and policy to bring a multidisciplinary strategy to every issue.”

Source: company website · checked Sep 5, 2026
7
Fredrikson & Byron, P.AIndirect evidence
Minneapolis, MN, United StatesHQ checked Sep 5, 2026501-1,000834

“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: company website · checked Sep 5, 2026
8
Sodali & COIndirect evidence
New York, NY, United StatesHQ checked Sep 5, 2026501-1,000431

“Sodali & Co advises corporate clients worldwide as they navigate the complex dynamic of shareholder and stakeholder interests.”

Source: company website · checked Sep 5, 2026
9
DDC Public AffairsStrong evidence
Washington, DC, United StatesHQ checked Sep 5, 202651-200411

“DDC Public Affairs builds communities of advocates that impact policy and win campaigns.”

Source: company website · checked Sep 5, 2026
10
Mercury Public Affairs, LLCIndirect evidence
New York, NY, United StatesHQ checked Sep 5, 202651-200390

“Mercury is a national bipartisan government relations and strategic communications firm.”

Source: company website · checked Sep 5, 2026
11
DKCStrong evidence
New York, NY, United StatesHQ checked Sep 5, 2026201-500349

“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: company website · checked Sep 5, 2026
12New York, NY, United StatesHQ checked Sep 5, 2026201-500302

“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: company website · checked Sep 5, 2026
13
Bully Pulpit InternationalIndirect evidence
Washington, DC, United StatesHQ checked Sep 5, 202651-200282

“Bully Pulpit International (BPI) is an outcomes agency at the intersection of business, politics, and policy.”

Source: company website · checked Sep 5, 2026
14Washington, DC, United StatesHQ checked Sep 5, 2026201-500255

“Cornerstone Government Affairs is a full-service, bipartisan, employee-owned firm specializing in government relations and lobbying, public affairs, strategic communications, and…”

Source: company website · checked Sep 5, 2026
15
BGR GroupIndirect evidence
Washington, DC, United StatesHQ checked Sep 5, 202651-200243

“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: company website · checked Sep 5, 2026
16
SKDKPartial evidence
Washington, DC, United StatesHQ checked Sep 5, 202651-200220

“SKDK provides strategic advice, public relations, crisis communications, advertising, direct mail, and research to national and international companies, advocacy organizations…”

Source: company website · checked Sep 5, 2026
17
Richard Attias & AssociatesIndirect evidence
New York, NY, United StatesHQ checked Sep 5, 202651-200213

“OUR VISION: To empower governments, corporations and civil society to lead, inspire, and drive impact on a global scale.”

Source: company website · checked Sep 5, 2026
18
AVŌQIndirect evidence
Washington, DC, United StatesHQ checked Sep 5, 2026201-500205

“Excellence isn’t enough.”

Source: company website · checked Sep 5, 2026
19
DCIStrong evidence
Washington, DC, United StatesHQ checked Sep 5, 202651-200198

“DCI Group is an independent public affairs consulting firm that specializes in public relations, crisis management, grassroots engagement, and digital advocacy.”

Source: company website · checked Sep 5, 2026
20
Plus CommunicationsIndirect evidence
Arlington, VA, United StatesHQ checked Sep 5, 2026201-500188

“Strategy + Execution = Results.”

Source: company website · checked Sep 5, 2026
21Washington, DC, United StatesHQ checked Sep 5, 202651-200187

“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: company website · checked Sep 5, 2026
22
Lilly & CompanyIndirect evidence
Austin, TX, United StatesHQ checked Sep 5, 2026n/a187

“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: company website · checked Sep 5, 2026
23
Global Strategy GroupStrong evidence
New York, NY, United StatesHQ checked Sep 5, 202651-200179

“Global Strategy Group is the go-to public affairs, communications, and research partner for companies, causes, and campaigns.”

Source: company website · checked Sep 5, 2026
24
Mcallister & QuinnPartial evidence
Washington, DC, United StatesHQ checked Sep 5, 202651-200170

“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: company website · checked Sep 5, 2026
25
InvariantIndirect evidence
Washington, DC, United StatesHQ checked Sep 5, 202651-200166

“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: company website · checked Sep 5, 2026

Showing 25 of 3,446 public affairs consulting firms based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 17,958 reachable decision-makers.

Free signup · no credit card

See all 3,446 companies

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

As of Sep 5, 2026
1-10Median size (employees)
WashingtonLargest hub · 717 HQs
15,971Contacts with mobile numbers
Sep 5, 2026Data refreshed

Companies by employee count

1-10
2,752
11-50
574
51-200
93
201-500
11
501-1,000
6
1,001-5,000
4

Verified emails by last verification

0–30
16,760
31–60
1,123
61–90
7
90–180
2
180+
66

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 evidence 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 SmartSearch, 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.
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 an evidence 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.

Frequently asked

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.

Ready to reach these companies? Verified emails and direct dials for all 3,446 public affairs consulting firms based in the United States. Start with a free account, no credit card.

Get the full list

Related lists

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.