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Company lists · Data refreshed September 2026

Top 25 Public affairs consulting firms based in Washington, United States

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 717 companies tracked

RevenueBase identified 717 public affairs consulting firms headquartered in Washington, United States as of September 2026 and tracks 10,437 professional contacts across them, including 5,357 with verified work emails. Washington is the largest hub.

This list covers public affairs consulting firms headquartered in Washington, 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
717Companies
10,437Contacts tracked
5,357Verified emails
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The 25 largest public affairs consulting firms based in Washington, United States

Ranked by team size
Top 25 of 717 public affairs consulting firms based in Washington, 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
1
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
2
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
3
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
4
Cornerstone Government AffairsStrong evidence
Washington, 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
5
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
6
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
7
AVŌQIndirect evidence
Washington, DC, United StatesHQ checked Sep 5, 2026201-500205

“Excellence isn’t enough.”

Source: company website · checked Sep 5, 2026
8
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
9
Dga-Albright Stonebridge GroupIndirect evidence
Washington, 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
10
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
11
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
12
Rational 360Indirect evidence
Washington, DC, United StatesHQ checked Sep 5, 202651-200161

“The Rational Way: All in Partners Rational 360 is a leading full-service strategic communications and digital agency, with offices and staff located across the country.”

Source: company website · checked Sep 5, 2026
13
National JournalIndirect evidence
Washington, DC, United StatesHQ checked Sep 5, 202651-200124

“We deliver insightful journalism, produce custom content and editable slides, and advise organizations on their advocacy and PAC engagement strategies.”

Source: company website · checked Sep 5, 2026
14
Public & Government Affairs At EdelmanStrong evidence
Washington, DC, United StatesHQ checked Sep 5, 2026201-500121

“Edelman’s public and government affairs team of consultants are trusted and experienced public affairs advisors-including former government officials, political advisors, policy…”

Source: company website · checked Sep 5, 2026
15
Narrative StrategiesStrong evidence
Washington, DC, United StatesHQ checked Sep 5, 202651-200111

“Narrative is a full-service strategic communications firm creatively solving today’s most demanding reputational and public affairs challenges.”

Source: company website · checked Sep 5, 2026
16
VOX GlobalIndirect evidence
Washington, DC, United StatesHQ checked Sep 5, 202651-20099

“It starts with a goal: yours.”

Source: company website · checked Sep 5, 2026
17
Monument AdvocacyStrong evidence
Washington, DC, United StatesHQ checked Sep 5, 202651-20097

“Monument Advocacy is a bipartisan firm that offers government relations, public affairs, strategic and crisis communications, and digital services.”

Source: company website · checked Sep 5, 2026
18
LSGPartial evidence
Washington, DC, United StatesHQ checked Sep 5, 202651-20085

“We work with corporations, trade associations, and nonprofits to change hearts and minds, move public opinion, and help brands connect to the public conscience in a rapidly…”

Source: company website · checked Sep 5, 2026
19
TFG The Ferguson GroupIndirect evidence
Washington, DC, United StatesHQ checked Sep 5, 202611-5084

“Founded in 1982, The Ferguson Group has a proud record of success advocating on behalf of local communities.”

Source: company website · checked Sep 5, 2026
20
VAN Scoyoc AssociatesPartial evidence
Washington, DC, United StatesHQ checked Sep 5, 202651-20082

“For more than 30 years, Van Scoyoc Associates (VSA) has been developing and executing tailored government affairs strategies for its clients.”

Source: company website · checked Sep 5, 2026
21
Mclarty AssociatesIndirect evidence
Washington, DC, United StatesHQ checked Sep 5, 202651-20080

“McLarty Associates, An Ankura Company, is the global strategy firm led by former Clinton White House Chief of Staff Thomas F.”

Source: company website · checked Sep 5, 2026
22
Cassidy & AssociatesIndirect evidence
Washington, DC, United StatesHQ checked Sep 5, 202651-20079

“At Cassidy and Associates, we make Washington work for you.”

Source: company website · checked Sep 5, 2026
23
Forbes Tate PartnersStrong evidence
Washington, DC, United StatesHQ checked Sep 5, 202611-5076

“Bipartisan public affairs firm driving outcomes for our partners that achieve their goals and build value in today’s policy and political landscape.”

Source: company website · checked Sep 5, 2026
24
The Herald GroupIndirect evidence
Washington, DC, United StatesHQ checked Sep 5, 202611-5076

“The Herald Group offers the best of both worlds – the full-scale capabilities and reach of a large firm with the servicing and attention of a small firm.”

Source: company website · checked Sep 5, 2026
25
Gravity ResearchPartial evidence
Washington, DC, United StatesHQ checked Sep 5, 202651-20069

“Gravity Research empowers organizations to anticipate risk, spot opportunities, and rationalize reputational concerns against a backdrop of evolving public pressures.”

Source: company website · checked Sep 5, 2026

Showing 25 of 717 public affairs consulting firms based in Washington, United States

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Public affairs consulting firms based in Washington, United States at a glance

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

Companies by employee count

1-10
504
11-50
169
51-200
37
201-500
5
1,001-5,000
1

Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Washington, over 717 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 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 Washington, 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 Washington 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, 5,357 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 in the United States

Frequently asked

How many public affairs consulting firms are there based in Washington, United States?

RevenueBase identified 717 public affairs consulting firms headquartered in Washington, 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?

APCO, headquartered in Washington, 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 5,357 verified decision-maker contacts tracked across these 717 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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Browse: Companies home · Public affairs consulting firms in United States · All United States lists · All Public affairs consulting firms lists · New 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.

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