Company lists · Data refreshed November 2026

Top 25 Federal agency consulting services worldwide

RevenueBase identified 55,513 company matches for federal agency consulting services worldwide as of November 2026 and tracks 595,436 professional contacts across them, including 163,917 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for federal agency consulting services worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026. Country and city lists for federal agency consulting services follow the table.

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 RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
55,513Companies
595,436Contacts tracked
163,917Verified emails
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The 25 largest federal agency consulting services worldwide

Ranked by team size
Top 25 of 55,513 company matches for federal agency consulting services worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchMclean, IL, United StatesHQ recorded Nov 6, 202610001+13,603 contacts →

Exact match

“Guidehouse is a global AI-led professional services firm delivering advisory, technology, and managed services to the commercial and government sectors.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchMenlo Park, United StatesHQ recorded Nov 6, 20265,001-10,0009,086 contacts →

Exact match

“Protiviti is a global consulting firm that delivers deep expertise, objective insights, a tailored approach and unparalleled collaboration to help leaders confidently face the…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchAmsterdam, NetherlandsHQ recorded Nov 6, 20265,001-10,0008,777 contacts →

Exact match

“BearingPoint is an independent management and technology consultancy.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchCanadaHQ recorded Nov 6, 202610001+8,243 contacts →

Exact match

“We serve federal departments and agencies as their central purchasing agent, real property manager, treasurer, accountant, pay and pension administrator, integrity adviser and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchChicago, United StatesHQ recorded Nov 6, 20265,001-10,0007,451 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchChêne-bourg, SwitzerlandHQ recorded Nov 6, 20265,001-10,0005,223 contacts →

Exact match

“Amaris Consulting is an independent technology consulting firm providing guidance and solutions to businesses.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchMadrid, SpainHQ recorded Nov 6, 20261,001-5,0004,730 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchAuckland, New ZealandHQ recorded Nov 6, 20261,001-5,0004,572 contacts →

Exact match

“Creative people together transforming the world is our vision.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchBethesda, United StatesHQ recorded Nov 6, 20265,001-10,0003,827 contacts →

Exact match

“DAI is an integrated professional services and advisory firm that provides project design and delivery, management consulting, and financial services to companies, investors, and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchNew York, United StatesHQ recorded Nov 6, 20261,001-5,0003,786 contacts →

Exact match

“For more than forty years, AlixPartners has helped businesses around the world respond quickly and decisively to their most critical challenges – circumstances as diverse as…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchUnited StatesHQ recorded Nov 6, 20265,001-10,0003,376 contacts →

Exact match

“To navigate the future with confidence, organizations need to make and act upon the right choices: clear, timely and inspirational choices that deliver growth in a dynamic…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchMilwaukee, WI, United StatesHQ recorded Nov 6, 20261,001-5,0003,201 contacts →

Exact match

“Always advancing.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchBoston, MA, United StatesHQ recorded Nov 6, 20261,001-5,0002,846 contacts →

Exact match

“Public Consulting Group (PCG) is a leading public sector solutions implementation and operations improvement firm that partners with health, education, and human services agencies…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchSan Antonio, FL, United StatesHQ recorded Nov 6, 20261,001-5,0002,542 contacts →

Exact match

“For over six decades, Frost & Sullivan has helped the world’s top companies toward transformational growth journeys that result in a stream of innovative growth opportunities.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchLondon, IL, United KingdomHQ recorded Nov 6, 20261,001-5,0002,311 contacts →

Exact match

“Baringa is a global consulting firm that helps leaders drive meaningful change and create value.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchBrussels, BelgiumHQ recorded Nov 6, 20261,001-5,0002,285 contacts →

Exact match

“As people, organizations and societies embrace change at pace, its leaders must anticipate, innovate and transform ever faster.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchJericho, NY, PalestineHQ recorded Nov 6, 20261,001-5,0002,131 contacts →

Exact match

“J.S.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchStockholm, SwedenHQ recorded Nov 6, 2026n/a2,056 contacts →

Exact match

“Governo är ett managementkonsultbolag som har en vision om ett attraktivt samhälle i takt med framtiden.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchChicago, IL, United StatesHQ recorded Nov 6, 20261,001-5,0001,918 contacts →

Exact match

“Sikich offers the public and private sectors a diverse platform of professional services across consulting, technology, and compliance.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchWarsaw, PolandHQ recorded Nov 6, 20265,001-10,0001,786 contacts →

Exact match

“Accenture to wiodąca, globalna firma świadcząca profesjonalne usługi na rzecz przedsiębiorstw, będących światowymi liderami, a także organizacji rządowych i pozarządowych.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchAmersfoort, NetherlandsHQ recorded Nov 6, 20261,001-5,0001,736 contacts →

Exact match

“BMC is opgericht vanuit de overtuiging dat de bedrijfsvoering binnen de overheid kon worden verbeterd.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchStuttgart, GermanyHQ recorded Nov 6, 20261,001-5,0001,580 contacts →

Exact match

“P3 group is an independent, owner-managed technology and management consulting group founded in 1996.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchBellevue, WA, United StatesHQ recorded Nov 6, 20265,001-10,0001,519 contacts →

Exact match

“Wicresoft has offices worldwide, providing diverse services across the globe.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchKent, OH, United StatesHQ recorded Nov 6, 20261,001-5,0001,477 contacts →

Exact match

“Davey Resource Group, Inc.(DRG) provides innovative consulting and field services that support utility infrastructure and environmental stewardship.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchAndover, NC, United StatesHQ recorded Nov 6, 2026201-5001,471 contacts →

Exact match

“ALKU® is a highly specialized consulting services firm focused on deploying highly skilled consulting resources in the areas of Technologies, HCIT, Life Sciences, and Government…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 55,513 federal agency consulting services worldwide

See the full list, filter by size, metro and specialty, and access 163,917 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Federal agency consulting services worldwide at a glance

As of Nov 6, 2026
27.5%Verified-email coverage
10.7Average contacts per company
1-10Median size (employees)
1.8%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
37,630
11-50
12,946
51-200
3,190
201-500
739
501-1,000
203
1,001-5,000
154
5,001-10,000
38
10001+
57

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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.
Coverage
Every country. Country and city lists for federal agency consulting services are linked below.
What qualifies
Company records worldwide whose business descriptions match “federal agency consulting services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 163,917 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Federal agency consulting services by location

276 lists · largest first

Every Federal agency consulting services 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 SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “federal agency consulting services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many federal agency consulting services are there worldwide?

RevenueBase identified 55,513 company matches for federal agency consulting services worldwide as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Guidehouse tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most federal agency consulting services?

The United States leads with 11,717 companies, followed by Brazil (3,028) and the United Kingdom (2,904). Every federal agency consulting services list by country and city is linked on this page.

Which city has the most federal agency consulting services?

London leads with 973 company records, followed by Paris (735) and Sao Paulo (722).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 163,917 professional contacts with verified work emails tracked across these 55,513 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 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 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.