Company lists · Data refreshed September 2026

Top 25 Public policy consulting firms based in the United States

RevenueBase identified 2,759 public policy consulting firms headquartered in the United States as of September 2026 and tracks 19,579 professional contacts across them, including 8,756 with verified work emails and 9,055 with mobile numbers. Washington is the largest hub.

This list covers public policy 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
2,759Companies
19,579Contacts tracked
8,756Verified emails
9,055Mobile numbers
Explore all 2,759 companies → Free signup · no credit card · 500 free credits

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

Ranked by team size
Top 25 of 2,759 public policy 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 policy 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
Acumen, LLCPartial evidence
Burlingame, CA, United StatesHQ checked Sep 5, 2026501-1,000570

“Acumen, LLC works to improve the information provided to policymakers who design and revise welfare, health, education, labor, and business programs at the national, state, and…”

Source: company website · checked Sep 5, 2026
2
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
3Lansing, MI, United StatesHQ checked Sep 5, 2026n/a268

“Our Mission: Improving the quality of life for residents of Michigan and beyond through the development and implementation of innovative, actionable public policies.”

Source: company website · checked Sep 5, 2026
4Washington, 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
Keller And Heckman LLPStrong evidence
Washington, DC, United StatesHQ checked Sep 5, 202651-200230

“Keller and Heckman, founded in 1962, has a broad practice in the areas of regulatory law, public policy, and litigation, serving both domestic and international clients.”

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
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
8
ASI GovernmentIndirect evidence
Herndon, VA, United StatesHQ checked Sep 5, 202651-200192

“For nearly two decades, ASI Government has served as a trusted advisor to government leaders seeking to improve mission performance, enhance organizational effectiveness and drive…”

Source: company website · checked Sep 5, 2026
9
Plus CommunicationsIndirect evidence
Arlington, VA, United StatesHQ checked Sep 5, 2026201-500188

“Strategy + Execution = Results.”

Source: company website · checked Sep 5, 2026
10
Global Strategy GroupPartial 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
11
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
12
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
13
Ripple EffectStrong evidence
Rockville, MD, United StatesHQ checked Sep 5, 2026201-500152

“Ripple Effect provides professional consulting and exceptional talent for federal, private, and non-profit clients to deliver some of the most crucial policies and programs that…”

Source: company website · checked Sep 5, 2026
14
The Results CompanyIndirect evidence
Raleigh, NC, United StatesHQ checked Sep 5, 2026n/a134

“The Results Company creates winning communications and outreach strategies for businesses and organizations at the local, state and federal levels.”

Source: company website · checked Sep 5, 2026
15
Mcguirewoods ConsultingIndirect evidence
Richmond, VA, United StatesHQ checked Sep 5, 202651-200127

“What people say and do in government can have a profound impact on your organization.”

Source: company website · checked Sep 5, 2026
16Washington, 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
17
Mcking ConsultingStrong evidence
Fairfax, VA, United StatesHQ checked Sep 5, 202651-200118

“McKing Consulting Corporation provides a variety of general and specialized management consulting services to the federal government, state agencies, nonprofits, and public and…”

Source: company website · checked Sep 5, 2026
18
Government Services GroupIndirect evidence
Nationwide, United StatesHQ checked Sep 5, 20261,001-5,000116
Source: company website · checked Sep 5, 2026
19
Stateside AssociatesIndirect evidence
Arlington, VA, United StatesHQ checked Sep 5, 202651-200102

“Stateside Associates is the largest state and local government affairs firm.”

Source: company website · checked Sep 5, 2026
20
Monument AdvocacyPartial 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
21
Justice Works Youth CareIndirect evidence
Rochester, PA, United StatesHQ checked Sep 5, 202651-20096

“Justice Works Youth Care is a Government Relations company located in 615 Virginia Ave, Rochester, Pennsylvania, United States.”

Source: company website · checked Sep 5, 2026
22
Kasirer LLCIndirect evidence
New York, NY, United StatesHQ checked Sep 5, 202611-5088

“Kasirer is NYC's #1 lobbying firm, navigating government on behalf of private sector & nonprofit clients.”

Source: company website · checked Sep 5, 2026
23
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
24
VAN Scoyoc AssociatesIndirect 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
25
East HireIndirect evidence
Claymont, DE, United StatesHQ checked Sep 5, 202651-20081

“East Hire was established by professionals with a vision to provide world-class management advisory services to enterprises in the private, government, non-government and academic…”

Source: company website · checked Sep 5, 2026

Showing 25 of 2,759 public policy 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 8,756 reachable decision-makers.

Free signup · no credit card

See all 2,759 companies

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

As of Sep 5, 2026
1-10Median size (employees)
WashingtonLargest hub · 597 HQs
9,055Contacts with mobile numbers
Sep 5, 2026Data refreshed

Companies by employee count

1-10
2,240
11-50
433
51-200
69
201-500
10
501-1,000
1
1,001-5,000
1

Verified emails by last verification

0–30
8,149
31–60
580
61–90
3
90–180
0
180+
24

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 policy 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 policy 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 policy 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, 8,756 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 policy consulting firms are there based in the United States?

RevenueBase identified 2,759 public policy 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?

Acumen, LLC, headquartered in Burlingame, tops this list with the largest team on record.

Which city has the most public policy consulting firms?

Washington leads with 597 headquartered companies, followed by Sacramento (94) and New York (73).

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 8,756 verified decision-maker contacts tracked across these 2,759 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 2,759 public policy 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.