Company lists · Data refreshed September 2026

Top 25 Public sector consulting firms based in the United Kingdom

RevenueBase identified 767 public sector consulting firms headquartered in the United Kingdom as of September 2026 and tracks 6,424 professional contacts across them, including 1,283 with verified work emails and 200 with mobile numbers. London is the largest hub.

This list covers public sector consulting firms 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 5, 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 5, 2026 86% judged on-target in blind review
767Companies
6,424Contacts tracked
1,283Verified emails
200Mobile numbers
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The 25 largest public sector consulting firms based in the United Kingdom

Ranked by team size
Top 25 of 767 public sector consulting firms based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 5, 2026. RevenueBase Smart Search rates how each company's information relates to public sector 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
1Indirect evidenceLondon, United KingdomHQ checked Sep 5, 2026201-500477 contacts →

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

Source: company website · checked Sep 5, 2026
2Partial evidenceLondon, United KingdomHQ checked Sep 5, 202651-20082 contacts →

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

Source: company website · checked Sep 5, 2026
3Indirect evidenceLondon, United KingdomHQ checked Sep 5, 202611-5059 contacts →

“An award-winning management consultancy who deliver tangible and enduring results for our clients.”

Source: company website · checked Sep 5, 2026
4Strong evidenceLondon, United KingdomHQ checked Sep 5, 202651-20051 contacts →

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

Source: company website · checked Sep 5, 2026
5Indirect evidenceLondon, United KingdomHQ checked Sep 5, 202611-5048 contacts →

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

Source: company website · checked Sep 5, 2026
6Partial evidenceLondon, United KingdomHQ checked Sep 5, 202611-5045 contacts →

“PMSI is a management consulting firm specialising in commercial due diligence, market intelligence and strategy consulting.”

Source: company website · checked Sep 5, 2026
7Indirect evidenceSheffield, United KingdomHQ checked Sep 5, 202611-5043 contacts →
Source: company website · checked Sep 5, 2026
8Indirect evidenceLothian, United KingdomHQ checked Sep 5, 202651-20041 contacts →

“Environmental Consultants.”

Source: company website · checked Sep 5, 2026
9Strong evidenceSalisbury, United KingdomHQ checked Sep 5, 202611-5041 contacts →

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

Source: company website · checked Sep 5, 2026
10Strong evidenceBristol, United KingdomHQ checked Sep 5, 202611-5039 contacts →

“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: company website · checked Sep 5, 2026
11Partial evidenceLondon, United KingdomHQ checked Sep 5, 202611-5033 contacts →

“Economic Consulting Associates was formed in 1997 to provide economic and regulatory consulting services to industry and government.”

Source: company website · checked Sep 5, 2026
12Partial evidenceLondon, United KingdomHQ checked Sep 5, 202611-5032 contacts →

“At MV we are passionate about better, more sustainable public services.”

Source: company website · checked Sep 5, 2026
13Strong evidenceLondon, United KingdomHQ checked Sep 5, 202611-5030 contacts →

“P2G is committed to delivering enduring social and economic value to the public sector through best practice.”

Source: company website · checked Sep 5, 2026
14Indirect evidenceRaunds, United KingdomHQ checked Sep 5, 202611-5030 contacts →

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

Source: company website · checked Sep 5, 2026
15Partial evidenceLondon, United KingdomHQ checked Sep 5, 202611-5027 contacts →

“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: company website · checked Sep 5, 2026
16Partial evidenceLondon, United KingdomHQ checked Sep 5, 202651-20026 contacts →

“KBM Group was founded as a Chartered Certified Accountancy firm, offering advisory and consulting services for business start-ups and organizations looking to strengthen their…”

Source: company website · checked Sep 5, 2026
17Partial evidenceBacup, United KingdomHQ checked Sep 5, 202651-20023 contacts →

“RealWorldHR is a UK based management consulting firm that specialises in HR and OD.”

Source: company website · checked Sep 5, 2026
18Partial evidenceBillericay, United KingdomHQ checked Sep 5, 202611-5022 contacts →

“Building Design Consultants is a Consulting Engineering business serving the Built Environment.”

Source: company website · checked Sep 5, 2026
19Strong evidenceStaines-upon-thames, United KingdomHQ checked Sep 5, 2026201-50020 contacts →

“Shriem Consulting specializes to deliver specialist consultancy services in industry sectors of telecommunication, media, payments and financial services oil and gas industries…”

Source: company website · checked Sep 5, 2026
20Indirect evidenceLondon, United KingdomHQ checked Sep 5, 202611-5018 contacts →

“Hawkrose provide wide-ranging consultancy services, covering, for example, financial analysis, legal, strategy and sustainability issues.”

Source: company website · checked Sep 5, 2026
21Partial evidenceNewry, United KingdomHQ checked Sep 5, 202611-5018 contacts →

“KOSI Corporation (KOSI) is a consultancy house with a broad client base of public bodies in the UK, Ireland and internationally.”

Source: company website · checked Sep 5, 2026
22Indirect evidenceChislehurst, United KingdomHQ checked Sep 5, 20261-1017 contacts →

“ComX PS Ltd provides consultants and advisers either individually or in teams as specialist analysts, programme and project managers and subject matter experts, to meet interim…”

Source: company website · checked Sep 5, 2026
23Indirect evidenceAylesbury, United KingdomHQ checked Sep 5, 202611-5015 contacts →

“Human Engine is a Financial Times top-ranked management consultancy with awards in People & Performance and Organisational Change.”

Source: company website · checked Sep 5, 2026
24Strong evidenceMoorgate, United KingdomHQ checked Sep 5, 202651-20014 contacts →

“Attenti is a specialist consultancy delivering bespoke sustainable solutions to a wide range of public sector clients.”

Source: company website · checked Sep 5, 2026
25Partial evidenceYnysddu, United KingdomHQ checked Sep 5, 202651-20013 contacts →

“Baird's CMC provides high-level strategic solutions to governments, corporations, and social sector organisations.”

Source: company website · checked Sep 5, 2026

Showing 25 of 767 public sector consulting firms based in the United Kingdom

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Public sector consulting firms based in the United Kingdom at a glance

As of Sep 5, 2026
20.0%Verified-email coverage
3.1%Mobile-number coverage
8.4Average contacts per company
1-10Median size (employees)
29.9%Largest-city concentration · London
Sep 5, 2026Page data refreshed

Companies by employee count

1-10
608
11-50
114
51-200
23
201-500
4
1,001-5,000
4
10001+
1

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

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 sector 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.
What qualifies
Companies headquartered in the United Kingdom whose own description of what they do matches “public sector 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 sector 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 sector consulting firms, 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, 1,283 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.

Public sector consulting firms by metro

  • Public sector consulting firms in London229

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 sector 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 sector consulting firms are there based in the United Kingdom?

RevenueBase identified 767 public sector consulting firms 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?

Frontier Economics, headquartered in London, tops this list with the largest team on record.

Which city has the most public sector consulting firms?

London leads with 229 headquartered companies, followed by Manchester (19) and Bristol (15).

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 1,283 verified decision-maker contacts tracked across these 767 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.

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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.