Company lists · Data refreshed November 2026

Top 25 Professional services consultancies based in the United Kingdom

RevenueBase identified 8,613 company matches for professional services consultancies associated with the United Kingdom as of November 2026 and tracks 162,574 professional contacts across them, including 46,986 with verified work emails. London is the largest hub.

This list covers company matches for professional services consultancies associated with the United Kingdom, 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.

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
8,613Companies
162,574Contacts tracked
46,986Verified emails
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The 25 largest professional services consultancies based in the United Kingdom

Ranked by team size
Top 25 of 8,613 company matches for professional services consultancies based in the United Kingdom, 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 matchLondon, United KingdomHQ recorded Nov 6, 202610001+14,853 contacts →

Exact match

“Make growth happen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Nov 6, 202610001+11,496 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Nov 6, 20265,001-10,0007,139 contacts →

Exact match

“BDO LLP is an accountancy and business advisory firm that provides Audit, Tax, Deals, and Consulting, Risk & Outsourcing (CR & O) services to entrepreneurial, growing and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Nov 6, 20265,001-10,0005,964 contacts →

Exact match

“Azets is an international business advisory group, with local experts in 190 locations across eight countries, backed by progressive technology.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Nov 6, 20261,001-5,0003,559 contacts →

Exact match

“RLB.”

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

Exact match

“As a fast growing UK accounting and advisory firm, we’ve been there, as a trusted partner, helping businesses and individuals meet challenges and seize opportunities across…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Nov 6, 20265,001-10,0002,212 contacts →

Exact match

“At Moore, our purpose is to help people thrive – our clients, our people and the communities they live and work in.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchCity Of London, United KingdomHQ recorded Nov 6, 20265,001-10,0002,110 contacts →

Exact match

“We are a specialist professional services and technology firm, working in partnership with leading insurance, highly regulated and global businesses.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Nov 6, 20261,001-5,0001,482 contacts →

Exact match

“Crowe UK is a leading audit, tax, advisory and consulting firm with a national presence to complement our international reach.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchUk And Ireland, United KingdomHQ recorded Nov 6, 20261,001-5,0001,267 contacts →

Exact match

“We provide services that help businesses at every stage of the lifecycle.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Nov 6, 2026501-1,0001,215 contacts →

Exact match

“At Moore Kingston Smith, we believe in the potential of people to make a positive impact, fuelled by the power of genuine understanding.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Nov 6, 20261,001-5,0001,117 contacts →

Exact match

“For Barnett Waddingham clients and scheme members, our service remains the same, via your usual contacts.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchLeicester, United KingdomHQ recorded Nov 6, 2026501-1,000798 contacts →

Exact match

“Pick Everard is a leading multi-professional consultancy working within the property, infrastructure and construction industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Nov 6, 2026501-1,000792 contacts →

Exact match

“FRP is a leading national business advisory firm.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchLondon, United KingdomHQ recorded Nov 6, 2026501-1,000774 contacts →

Exact match

“We are a fast-growing firm of accountants and business advisers based in London’s Canary Wharf, Leeds and in Manchester.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchChesterton, United KingdomHQ recorded Nov 6, 2026501-1,000667 contacts →

Exact match

“Dalcour Maclaren: delivering land, stakeholder and environmental solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchEsher, United KingdomHQ recorded Nov 6, 2026501-1,000654 contacts →

Exact match

“Tony Gee is an award winning firm that provides specialist engineering consultancy services to the construction industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Nov 6, 2026501-1,000643 contacts →

Exact match

“We guide our clients, colleagues and communities to a brighter future.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchCarlisle, United KingdomHQ recorded Nov 6, 2026501-1,000610 contacts →

Exact match

“Armstrong Watson has been advising and protecting clients across the North of England and Scotland since 1867.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchBishop's Stortford, United KingdomHQ recorded Nov 6, 2026201-500523 contacts →

Exact match

“Price Bailey is a leading firm of chartered accountants and business advisers with offices across East Anglia, London, and a strategic presence overseas, serving local SMEs…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchLondon, United KingdomHQ recorded Nov 6, 20261,001-5,000481 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchGlasgow, United KingdomHQ recorded Nov 6, 2026201-500467 contacts →

Exact match

“Welcome to Fairhurst: Fairhurst is a Limited Liability Partnership (LLP) of Consulting Engineers practicing in the UK, employing circa 400 staff in 16 principal offices.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchColchester, United KingdomHQ recorded Nov 6, 20261,001-5,000459 contacts →

Exact match

“Accountants, Tax and Business Advisers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchLondon, United KingdomHQ recorded Nov 6, 2026201-500412 contacts →

Exact match

“Welcome to the new era of accountancy.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchBirmingham, United KingdomHQ recorded Nov 6, 2026501-1,000401 contacts →

Exact match

“Your success matters.”

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

Showing 25 of 8,613 professional services consultancies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 46,986 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Professional services consultancies based in the United Kingdom at a glance

As of Nov 6, 2026
28.9%Verified-email coverage
18.9Average contacts per company
1-10Median size (employees)
33.8%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
6,442
11-50
1,411
51-200
352
201-500
73
501-1,000
26
1,001-5,000
23
5,001-10,000
12
10001+
13

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 8,613 companies.

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.
What qualifies
Company records associated with the United Kingdom whose business descriptions match “professional services consultancies” 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 46,986 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.

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 “professional services consultancies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many professional services consultancies are there based in the United Kingdom?

RevenueBase identified 8,613 company matches for professional services consultancies associated with the United Kingdom 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?

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

Which city has the most professional services consultancies?

London leads with 2907 company records, followed by Manchester (213) and Birmingham (135).

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 46,986 professional contacts with verified work emails tracked across these 8,613 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.