Company lists · Data refreshed September 2026

Top 25 Public policy consulting firms worldwide

Name: Public policy consulting firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 5,063 companies tracked

RevenueBase identified 5,063 public policy consulting firms worldwide as of September 2026 and tracks 39,295 professional contacts across them, including 13,777 with verified work emails and 9,880 with mobile numbers. The United States is the largest market and Washington the largest hub.

This list covers public policy consulting firms worldwide, 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. Country and city lists for public policy consulting firms follow the table.

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

5,063Companies

39,295Contacts tracked

13,777Verified emails

9,880Mobile numbers

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The 25 largest public policy consulting firms worldwide

Ranked by team size

Top 25 of 5,063 public policy consulting firms worldwide, ranked by team size, largest first. Data refreshed Sep 5, 2026. RevenueBase Smart Search rates how each company's information relates to public policy 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	Acumen, LLC	Partial evidence	Burlingame, CA, United StatesHQ checked Sep 5, 2026	501-1,000	570 contacts →
	Partial evidence “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: RevenueBase Database · checked Sep 5, 2026
2	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
3	CMM DE LA Calle, Madrazo, Mancera SC	Indirect evidence	Miguel Hidalgo, MexicoHQ checked Sep 5, 2026	n/a	362 contacts →
	Indirect evidence “Somos una empresa consultora en asuntos públicos que conjunta sustancia con forma y traduce pensamiento al considerar gran diversidad de puntos de vista y panoramas.” Source: RevenueBase Database · checked Sep 5, 2026
4	Public Sector Consultants	Strong evidence	Lansing, MI, United StatesHQ checked Sep 5, 2026	n/a	268 contacts →
	Strong evidence “Our Mission: Improving the quality of life for residents of Michigan and beyond through the development and implementation of innovative, actionable public policies.” Source: RevenueBase Database · checked Sep 5, 2026
5	Cornerstone Government Affairs	Partial evidence	Washington, DC, United StatesHQ checked Sep 5, 2026	201-500	255 contacts →
	Partial 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
6	Keller And Heckman LLP	Strong evidence	Washington, DC, United StatesHQ checked Sep 5, 2026	51-200	230 contacts →
	Strong evidence “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: RevenueBase Database · checked Sep 5, 2026
7	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
8	Flint Global	Partial evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	214 contacts →
	Partial evidence “Flint specialises in advising businesses and investors on how to navigate and surmount the policy, political, regulatory and competition challenges they face in European and…” Source: RevenueBase Database · checked Sep 5, 2026
9	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
10	ASI Government	Indirect evidence	Herndon, VA, United StatesHQ checked Sep 5, 2026	51-200	192 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 5, 2026
11	Harmon Corporate Affairs	Partial evidence	Madrid, SpainHQ checked Sep 5, 2026	51-200	191 contacts →
	Partial evidence “Harmon is a strategic consulting firm that advises organizations on interpreting their environment and connecting with their stakeholders through non-market strategies.” Source: RevenueBase Database · checked Sep 5, 2026
12	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
13	Global Strategy Group	Partial evidence	New York, NY, United StatesHQ checked Sep 5, 2026	51-200	179 contacts →
	Partial 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
14	TACT	Partial evidence	Québec, QC, CanadaHQ checked Sep 5, 2026	51-200	175 contacts →
	Partial evidence “Founded in September 2011, TACT Intelligence-conseil is composed of a group of experienced, professional communicators seeking to create a Québec-owned consulting agency.” Source: RevenueBase Database · checked Sep 5, 2026
15	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
16	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
17	Political Intelligence Brussels	Strong evidence	Brussels, BelgiumHQ checked Sep 5, 2026	n/a	163 contacts →
	Strong evidence “Political Intelligence is an independent public affairs consultancy, with offices in Brussels, Lisbon, London, Madrid.” Source: RevenueBase Database · checked Sep 5, 2026
18	Ripple Effect	Strong evidence	Rockville, MD, United StatesHQ checked Sep 5, 2026	201-500	152 contacts →
	Strong evidence “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: RevenueBase Database · checked Sep 5, 2026
19	BMJ Consultores Associados	Partial evidence	Brasilia, BrazilHQ checked Sep 5, 2026	51-200	139 contacts →
	Partial evidence “BMJ & Associates is a Brazilian consulting firm specialized in International Trade, Government Affairs, Tax Analysis, Strategic Communication and Regulatory Affairs.” Source: RevenueBase Database · checked Sep 5, 2026
20	The Results Company	Indirect evidence	Raleigh, NC, United StatesHQ checked Sep 5, 2026	n/a	134 contacts →
	Indirect evidence “The Results Company creates winning communications and outreach strategies for businesses and organizations at the local, state and federal levels.” Source: RevenueBase Database · checked Sep 5, 2026
21	Strategycorp	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	51-200	130 contacts →
	Indirect evidence “Being right isn't enough.” Source: RevenueBase Database · checked Sep 5, 2026
22	Mcguirewoods Consulting	Indirect evidence	Richmond, VA, United StatesHQ checked Sep 5, 2026	51-200	127 contacts →
	Indirect evidence “What people say and do in government can have a profound impact on your organization.” Source: RevenueBase Database · checked Sep 5, 2026
23	Global Counsel	Partial evidence	Doha, United KingdomHQ checked Sep 5, 2026	51-200	125 contacts →
	Partial evidence “Global Counsel is an advisory firm that works with clients to navigate the critical area between business, politics and policymaking.” Source: RevenueBase Database · checked Sep 5, 2026
24	Davis Pier Consulting	Partial evidence	Halifax, NS, CanadaHQ checked Sep 5, 2026	51-200	125 contacts →
	Partial evidence “Davis Pier is a consulting and social impact agency that solves complex government and social challenges.” Source: RevenueBase Database · checked Sep 5, 2026
25	Hanbury Strategy	Indirect evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	125 contacts →
	Indirect evidence “Hanbury is a strategic advisory firm that turns insight into impact.” 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 policy 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 policy consulting firms.
Partial evidence: Its own public description names part of public policy 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 policy 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 5,063 public policy consulting firms worldwide

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Public policy consulting firms worldwide at a glance

As of Sep 5, 2026

35.1%Verified-email coverage

25.1%Mobile-number coverage

7.8Average contacts per company

1-10Median size (employees)

11.8%Largest-city concentration · Washington

Sep 5, 2026Page data refreshed

Companies by employee count

1-10

3,972

11-50

885

51-200

152

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 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.
Coverage: 15 countries, largest first: the United States, the United Kingdom, France, Canada, Australia, Brazil, Germany, the Netherlands, Belgium, Mexico and 5 more. Country and city lists for public policy consulting firms are linked below.
What qualifies: Companies worldwide 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.
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 policy 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 policy consulting firms, and records with no verified work email.
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, 13,777 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 between September 5, 2026 and September 14, 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 policy consulting firms by location

42 lists · largest first

Every Public policy consulting firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 policy 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 policy consulting firms are there worldwide?

RevenueBase identified 5,063 public policy consulting firms worldwide 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 country has the most public policy consulting firms?

The United States leads with 2,759 companies, followed by the United Kingdom (422) and France (319). Every public policy consulting firms list by country and city is linked on this page.

Which city has the most public policy consulting firms?

Washington leads with 597 headquartered companies, followed by London (172) and Paris (125).

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 13,777 verified decision-maker contacts tracked across these 5,063 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled from the company graph between September 5, 2026 and September 14, 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.