Company lists · Data refreshed September 2026

Top 25 Policy consulting firms worldwide

RevenueBase identified 16,013 policy consulting firms worldwide as of September 2026 and tracks 129,102 professional contacts across them, including 37,242 with verified work emails. The United States is the largest market and Washington the largest hub.

This list covers 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 29, 2026. Country and city lists for 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 29, 2026 86% judged on-target in blind review
16,013Companies
129,102Contacts tracked
37,242Verified emails
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The 25 largest policy consulting firms worldwide

Ranked by team size
Top 25 of 16,013 policy consulting firms worldwide, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceChicago, IL, United StatesHQ checked Sep 29, 20265,001-10,0006,978 contacts →

Partial evidence

“As one of the original firms, we’ve never lost sight of the fact that consulting is a people business.”

Source: RevenueBase Database · checked Sep 29, 2026
2Partial evidenceMadrid, SpainHQ checked Sep 29, 20261,001-5,0004,468 contacts →

Partial evidence

“Management Solutions is a leading provider of business consulting services for regulated industries.”

Source: RevenueBase Database · checked Sep 29, 2026
3Indirect evidenceBoston, MA, United StatesHQ checked Sep 29, 20261,001-5,0004,093 contacts →

Indirect evidence

“L.E.K.”

Source: RevenueBase Database · checked Sep 29, 2026
4Indirect evidenceJericho, NY, PalestineHQ checked Sep 29, 20261,001-5,0001,954 contacts →

Indirect evidence

“J.S.”

Source: RevenueBase Database · checked Sep 29, 2026
5Indirect evidenceNew York, NY, United StatesHQ checked Sep 29, 20261,001-5,0001,814 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
6Partial evidenceBoston, MA, United StatesHQ checked Sep 29, 20261,001-5,0001,781 contacts →

Partial evidence

“Analysis Group is one of the largest international economics consulting firms, with more than 1,500 professionals across 15 offices in North America, Europe, and Asia.”

Source: RevenueBase Database · checked Sep 29, 2026
7Indirect evidenceNew Delhi, IndiaHQ checked Sep 29, 2026501-1,0001,322 contacts →

Indirect evidence

“Headquartered in India with six international offices in Cambodia, Ethiopia, Kenya, the Philippines, Germany and the United Kingdom, IPE Global Group offers a range of integrated…”

Source: RevenueBase Database · checked Sep 29, 2026
8Partial evidenceMilan, ItalyHQ checked Sep 29, 20261,001-5,0001,304 contacts →

Partial evidence

“Intellera Consulting is a consulting company born from the buyout management of the PwC Public administration and Healthcare branch.”

Source: RevenueBase Database · checked Sep 29, 2026
9Indirect evidenceMiami, FL, United StatesHQ checked Sep 29, 20261,001-5,0001,260 contacts →

Indirect evidence

“Expertly balancing experience and innovation to deliver unique solutions to public and private clients.”

Source: RevenueBase Database · checked Sep 29, 2026
10Partial evidenceParis, SingaporeHQ checked Sep 29, 2026501-1,000868 contacts →

Partial evidence

“Accuracy is a wholly independent international consulting firm providing advice to company management and shareholders for their strategic or critical decisions, notably in…”

Source: RevenueBase Database · checked Sep 29, 2026
11Indirect evidenceNew York, NY, United StatesHQ checked Sep 29, 2026501-1,000782 contacts →

Indirect evidence

“In 2026, NERA is celebrating 65 years of trusted economics, experts, and experience.”

Source: RevenueBase Database · checked Sep 29, 2026
12Partial evidenceNew York, NY, United StatesHQ checked Sep 29, 2026501-1,000765 contacts →

Partial evidence

“The Vertex Companies, LLC is a global consulting firm that provides strategic advisory, project management, and dispute resolution services for organizations that face complex…”

Source: RevenueBase Database · checked Sep 29, 2026
13Indirect evidenceUnited StatesHQ checked Sep 29, 2026n/a686 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 29, 2026
14Partial evidenceBurlingame, CA, United StatesHQ checked Sep 29, 2026501-1,000570 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 29, 2026
15Indirect evidenceLouvain-la-neuve, BelgiumHQ checked Sep 29, 2026n/a564 contacts →

Indirect evidence

“ADE is a consultancy providing independent advice for contributing to improve public decision-making.”

Source: RevenueBase Database · checked Sep 29, 2026
16Indirect evidenceBoston, MA, United StatesHQ checked Sep 29, 2026201-500553 contacts →

Indirect evidence

“The Brattle Group answers complex economic, finance, and regulatory questions for corporations, law firms, and governments around the world.”

Source: RevenueBase Database · checked Sep 29, 2026
17Indirect evidenceParis, FranceHQ checked Sep 29, 202651-200499 contacts →

Indirect evidence

“Créé en 1975, GVA est composé de 80 personnes, pour près de 10 millions de chiffre d’affaires.”

Source: RevenueBase Database · checked Sep 29, 2026
18Indirect evidenceLondon, United KingdomHQ checked Sep 29, 2026201-500477 contacts →

Indirect evidence

“We help companies with their biggest challenges – market strategies, regulatory reviews, competition inquiries.”

Source: RevenueBase Database · checked Sep 29, 2026
19Indirect evidenceBelo Horizonte, BrazilHQ checked Sep 29, 2026201-500452 contacts →

Indirect evidence

“Since 2004, we have helped companies solve their challenges in People, Management, Security and Trade Union Relations, delivering world-class results.”

Source: RevenueBase Database · checked Sep 29, 2026
20Indirect evidenceIndianapolis, IN, United StatesHQ checked Sep 29, 2026201-500431 contacts →

Indirect evidence

“We are a passionate team of engineers, mathematicians, data analysts, project managers, and business consultants.”

Source: RevenueBase Database · checked Sep 29, 2026
21Partial evidenceNew York, NY, United StatesHQ checked Sep 29, 2026201-500423 contacts →

Partial evidence

“Keystone is an innovative strategy, economics, and technology consulting firm delivering transformative ideas and novel solutions to global brands and law firms on leading-edge…”

Source: RevenueBase Database · checked Sep 29, 2026
22Partial evidenceWashington, DC, United StatesHQ checked Sep 29, 202651-200411 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
23Indirect evidenceNew York, NY, United StatesHQ checked Sep 29, 202651-200390 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
24Partial evidenceBrussels, BelgiumHQ checked Sep 29, 2026201-500362 contacts →

Partial evidence

“We advise companies, policymakers, regulators and lawyers on any economic issue connected with competition, finance or regulation.”

Source: RevenueBase Database · checked Sep 29, 2026
25Indirect evidenceMiguel Hidalgo, MexicoHQ checked Sep 29, 2026n/a362 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 29, 2026

Showing 25 of 16,013 policy consulting firms worldwide

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Policy consulting firms worldwide at a glance

As of Sep 29, 2026
28.8%Verified-email coverage
8.1Average contacts per company
1-10Median size (employees)
3.3%Largest-city concentration · Washington
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
12,041
11-50
3,223
51-200
531
201-500
96
501-1,000
31
1,001-5,000
24
5,001-10,000
6
10001+
15

Email recency is reported on each country list linked below.

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 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
Every country. Country and city lists for policy consulting firms are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “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 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 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, 37,242 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 29, 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.

Policy consulting firms by location

89 lists · largest first

Every 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 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 policy consulting firms are there worldwide?

RevenueBase identified 16,013 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?

Kearney, headquartered in Chicago, tops this list with the largest team on record.

Which country has the most policy consulting firms?

The United States leads with 3,982 companies, followed by France (781) and the United Kingdom (766). Every policy consulting firms list by country and city is linked on this page.

Which city has the most policy consulting firms?

Washington leads with 525 headquartered companies, followed by Paris (324) and London (321).

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 37,242 verified decision-maker contacts tracked across these 16,013 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 29, 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.