Company lists · Data refreshed September 2026

Top 25 Government consulting organizations based in the United Kingdom

RevenueBase identified 1,649 government consulting organizations headquartered in the United Kingdom as of September 2026 and tracks 12,710 professional contacts across them, including 2,021 with verified work emails. London is the largest hub.

This list covers government consulting organizations headquartered in the United Kingdom, 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 19, 2026.

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 19, 2026 86% judged on-target in blind review
1,649Companies
12,710Contacts tracked
2,021Verified emails
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The 25 largest government consulting organizations based in the United Kingdom

Ranked by team size
Top 25 of 1,649 government consulting organizations based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to government consulting organizations: 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 evidenceLondon, United KingdomHQ checked Sep 19, 2026201-5001,221 contacts →

Partial evidence

“Blackmont Consulting provides 100% free advisory services to NGO´s, NPO´s and start-ups.”

Source: RevenueBase Database · checked Sep 19, 2026
2Indirect evidenceLondon, United KingdomHQ checked Sep 19, 2026201-500477 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 19, 2026
3Indirect evidenceHessle, United KingdomHQ checked Sep 19, 202611-5098 contacts →

Indirect evidence

“Agencia has been transforming organisations for over 20 years.”

Source: RevenueBase Database · checked Sep 19, 2026
4Strong evidenceBristol, United KingdomHQ checked Sep 19, 202651-20089 contacts →

Strong evidence

“Whitetree is an agile consulting firm that provides strategic guidance and operational support to large businesses and government departments.”

Source: RevenueBase Database · checked Sep 19, 2026
5Partial evidenceLondon, United KingdomHQ checked Sep 19, 202651-20082 contacts →

Partial evidence

“Cambridge Management Consulting (Cambridge MC) is an international consulting firm that helps companies of all sizes have a better impact on the world.”

Source: RevenueBase Database · checked Sep 19, 2026
6Partial evidenceLondon, United KingdomHQ checked Sep 19, 202651-20078 contacts →

Partial evidence

“Principle One provides Systems Engineering, Architecture and Business Consulting services within the Law Enforcement, National Security, Health and wider public sector.”

Source: RevenueBase Database · checked Sep 19, 2026
7Indirect evidenceBath, United KingdomHQ checked Sep 19, 202651-20077 contacts →

Indirect evidence

“We support clients in finding and winning public sector contracts.”

Source: RevenueBase Database · checked Sep 19, 2026
8Indirect evidenceHigh Wycombe, United KingdomHQ checked Sep 19, 202651-20074 contacts →

Indirect evidence

“Saepio increase awareness, reduce risk and improve security in a continually evolving threat landscape.”

Source: RevenueBase Database · checked Sep 19, 2026
9Partial evidenceSwindon, United KingdomHQ checked Sep 19, 202651-20072 contacts →

Partial evidence

“Excalibur provides an end to end business consulting service that offers reliable insight, and expertise in communications and technology.”

Source: RevenueBase Database · checked Sep 19, 2026
10Indirect evidenceLondon, United KingdomHQ checked Sep 19, 202651-20069 contacts →

Indirect evidence

“In complex transformation programmes, risk, regulation, financial crime, data, technology and operations no longer sit in separate silos.”

Source: RevenueBase Database · checked Sep 19, 2026
11Partial evidenceLondon, United KingdomHQ checked Sep 19, 202611-5060 contacts →

Partial evidence

“FMA is a global advisory firm that partners with senior government leaders and public sector organisations to save money, improve public services, and build lasting organisational…”

Source: RevenueBase Database · checked Sep 19, 2026
12Partial evidenceSheffield, United KingdomHQ checked Sep 19, 202611-5056 contacts →

Partial evidence

“Incorporated in 1998 in the United Kingdom, IOD PARC is a private consulting company and a leading, global specialist-provider in results-based performance assessment in…”

Source: RevenueBase Database · checked Sep 19, 2026
13Indirect evidenceLondon, United KingdomHQ checked Sep 19, 202651-20051 contacts →

Indirect evidence

“RedQuadrant is an exciting efficiency and transformation consultancy for the public sector.”

Source: RevenueBase Database · checked Sep 19, 2026
14Indirect evidenceLondon, United KingdomHQ checked Sep 19, 202611-5048 contacts →

Indirect evidence

“London Economics is one of Europe's leading specialist economics and policy consultancies and has its head office in London.”

Source: RevenueBase Database · checked Sep 19, 2026
15Indirect evidenceSheffield, United KingdomHQ checked Sep 19, 202651-20046 contacts →

Indirect evidence

“Welcome to Moore Insight.”

Source: RevenueBase Database · checked Sep 19, 2026
16Indirect evidenceSalisbury, United KingdomHQ checked Sep 19, 202611-5041 contacts →

Indirect evidence

“We believe in supporting the public sector to make great decisions.”

Source: RevenueBase Database · checked Sep 19, 2026
17Indirect evidenceLondon, United KingdomHQ checked Sep 19, 2026n/a41 contacts →

Indirect evidence

“You can now find us over at EPAM Continuum.”

Source: RevenueBase Database · checked Sep 19, 2026
18Indirect evidenceBristol, United KingdomHQ checked Sep 19, 202611-5039 contacts →

Indirect evidence

“Our high-calibre consultants have extensive experience across public and private sectors and will support any commercial challenge you have, including delivering complex tender…”

Source: RevenueBase Database · checked Sep 19, 2026
19Indirect evidenceLondon, United KingdomHQ checked Sep 19, 202651-20038 contacts →

Indirect evidence

“Inforom Consultancy Services helps companies expand, strengthen and launch Internationally.”

Source: RevenueBase Database · checked Sep 19, 2026
20Indirect evidenceRaunds, United KingdomHQ checked Sep 19, 202611-5030 contacts →

Indirect evidence

“About eXceeding At eXceeding, we help organisations unlock greater value from procurement.”

Source: RevenueBase Database · checked Sep 19, 2026
21Indirect evidenceLondon, United KingdomHQ checked Sep 19, 202611-5028 contacts →

Indirect evidence

“Verita is the leading independent consultancy for regulated organisations in the UK.”

Source: RevenueBase Database · checked Sep 19, 2026
22Indirect evidenceChristchurch, United KingdomHQ checked Sep 19, 20261-1028 contacts →

Indirect evidence

“Housing Specialists | Value for Money Experts | Performance Improvement Gurus| For when the only certainty is change, we offer a range of fixed price strategic support which will…”

Source: RevenueBase Database · checked Sep 19, 2026
23Partial evidenceLondon, United KingdomHQ checked Sep 19, 202611-5027 contacts →

Partial evidence

“MH & A was founded in 2018 by Professor Matt Hamnett, who has worked at senior levels in central Government, corporate and social sector organisations.”

Source: RevenueBase Database · checked Sep 19, 2026
24Indirect evidenceLondon, United KingdomHQ checked Sep 19, 202611-5027 contacts →

Indirect evidence

“WTS Hansuke is a specialist professional services firm notable for its focus on excellent client service and agility.”

Source: RevenueBase Database · checked Sep 19, 2026
25Indirect evidenceYeovil, United KingdomHQ checked Sep 19, 202611-5026 contacts →

Indirect evidence

“Here at Shipley UK, we help organisations win good business in competitive, complex, and highly regulated markets.”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 25 of 1,649 government consulting organizations based in the United Kingdom

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Government consulting organizations based in the United Kingdom at a glance

As of Sep 19, 2026
15.9%Verified-email coverage
7.7Average contacts per company
1-10Median size (employees)
31.5%Largest-city concentration · London
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
1,347
11-50
214
51-200
45
201-500
7
501-1,000
1
1,001-5,000
6
10001+
3

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 1,649 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 government consulting organizations, 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.
What qualifies
Companies headquartered in the United Kingdom whose own description of what they do matches “government consulting organizations”. 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 government consulting organizations), 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 government consulting organizations, and records with no verified work email. Companies headquartered outside United Kingdom 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 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, 2,021 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 19, 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.

Government consulting organizations by metro

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 government consulting organizations, 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 government consulting organizations are there based in the United Kingdom?

RevenueBase identified 1,649 government consulting organizations headquartered in the United Kingdom 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?

Blackmont Consulting, headquartered in London, tops this list with the largest team on record.

Which city has the most government consulting organizations?

London leads with 519 headquartered companies, followed by Manchester (33) and Bristol (26).

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 2,021 verified decision-maker contacts tracked across these 1,649 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 19, 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.