Company lists · Data refreshed September 2026

Top 25 Compliance and audit consulting companies based in the United Kingdom

RevenueBase identified 748 company matches for compliance and audit consulting companies associated with the United Kingdom as of September 2026 and tracks 6,343 professional contacts across them, including 2,819 with verified work emails. London is the largest hub.

This list covers company matches for compliance and audit consulting companies 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 September 27, 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 Sep 27, 2026 How this list was built
748Companies
6,343Contacts tracked
2,819Verified emails
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The 25 largest compliance and audit consulting companies based in the United Kingdom

Ranked by team size
Top 25 of 748 company matches for compliance and audit consulting companies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 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 matchRuddington, United KingdomHQ recorded Sep 27, 20261,001-5,0001,303 contacts →

Exact match

“Ideagen brings clarity and confidence to the safe hands and trusted voices protecting our world.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
2Exact matchCardiff, United KingdomHQ recorded Sep 27, 20261,001-5,000453 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
3Exact matchBirmingham, United KingdomHQ recorded Sep 27, 2026501-1,000242 contacts →

Exact match

“We help our customers to do the right business in the right way.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Sep 27, 202651-200168 contacts →

Exact match

“Kaizen delivers independent regulatory reporting assurance through a scalable platform that combines forensic testing, deep regulatory expertise, and actionable insights.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
5Exact matchCity Of London, United KingdomHQ recorded Sep 27, 202651-200141 contacts →

Exact match

“Intelligent compliance solutions for outcomes that matter* We offer complete compliance solutions to help financial services firms solve their regulatory challenges.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Sep 27, 202651-200126 contacts →

Exact match

“We are TRPGLOBAL, your strategic partner in helping you with the complexities of risk management.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
7Exact matchFareham, United KingdomHQ recorded Sep 27, 202651-200117 contacts →

Exact match

“Relax.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8Exact matchStevenage, United KingdomHQ recorded Sep 27, 202651-200102 contacts →

Exact match

“Global experts in quality assurance & GxP compliance across pharmaceutical, biotech & medical device manufacturing supply chains Who is Rephine?”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Sep 27, 202651-20082 contacts →

Exact match

“Ark Workplace Risk is the trusted partner for organisations seeking to take control of their risk, compliance, and safety.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Sep 27, 202651-20076 contacts →

Exact match

“Thistle Initiatives is an award‑winning management consultancy specialising in regulatory compliance, financial crime and business transformation.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Sep 27, 202611-5074 contacts →

Exact match

“Aptivaa is a vertically focused risk and compliance professional services firm delivering risk management solutions to the global financial services industry.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Sep 27, 202651-20067 contacts →

Exact match

“Cosegic is the Compliance Partner to the world’s most competitive organisations.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13Exact matchBelfast, United KingdomHQ recorded Sep 27, 202651-20064 contacts →

Exact match

“fscom is one of the premier specialist consulting firms providing governance, risk, and compliance solutions to financial services institutions in the UK and Ireland.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Sep 27, 202611-5055 contacts →

Exact match

“FirmDecisions, member of the Ebiquity Group Plc, is the largest independent global marketing auditor.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
15Exact matchFulham, United KingdomHQ recorded Sep 27, 202611-5055 contacts →

Exact match

“GoodCorporation helps organisations to design, build and embed ethics and compliance programmes which we evaluate and benchmark.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16Exact matchRochester, United KingdomHQ recorded Sep 27, 202611-5047 contacts →

Exact match

“GCS Compliance Ltd are a specialist independent auditing company providing quality safety, expert technical, compliance management consultancy services and professional training…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17Exact matchSheffield, United KingdomHQ recorded Sep 27, 202651-20046 contacts →

Exact match

“Welcome to Moore Insight.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
18Exact matchManchester, United KingdomHQ recorded Sep 27, 202651-20044 contacts →

Exact match

“threesixty provides trusted compliance, technical and business support to over 950 directly authorised advice and discretionary management firms, supporting more than individuals…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19Exact matchWilmslow, United KingdomHQ recorded Sep 27, 202651-20043 contacts →

Exact match

“Paradigm Consulting is a premier provider of compliance support to the UK's financial services community, including directly authorised wealth managers, financial advisers and…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20Exact matchLondon, United KingdomHQ recorded Sep 27, 202651-20038 contacts →

Exact match

“Since 2001, Lysis Group has established itself as a global leader in the field of Financial Crime (FC) compliance.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21Exact matchLondon, United KingdomHQ recorded Sep 27, 202651-20036 contacts →

Exact match

“Welcome to Complyport - member of ComplyMAP Group!”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22Exact matchEly, United KingdomHQ recorded Sep 27, 202651-20035 contacts →

Exact match

“GRC International Group plc is the holding company for a group of companies providing a range of products and services to address the IT governance, risk management and compliance…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23Exact matchMoorgate, United KingdomHQ recorded Sep 27, 202611-5034 contacts →

Exact match

“Ruleguard is the leading AI-powered Continuous Assurance Platform built exclusively for regulated financial services firms.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
24Exact matchLondon, United KingdomHQ recorded Sep 27, 202651-20034 contacts →

Exact match

“Our expert consultants help regulated businesses navigate a changing world with confidence.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
25Exact matchLondon, United KingdomHQ recorded Sep 27, 202611-5034 contacts →

Exact match

“RQC Group is an industry-leading financial compliance consultancy with offices in London and New York, specialising in FCA, SEC and CFTC/NFA Compliance Consulting, Investment…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase

Showing 25 of 748 compliance and audit consulting companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 2,819 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Compliance and audit consulting companies based in the United Kingdom at a glance

As of Sep 27, 2026
44.4%Verified-email coverage
8.5Average contacts per company
1-10Median size (employees)
39.7%Largest-city concentration · London
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
536
11-50
158
51-200
38
201-500
3
501-1,000
4
1,001-5,000
6

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 748 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 “compliance and audit consulting companies” 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 2,819 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 September 27, 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 “compliance and audit consulting companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many compliance and audit consulting companies are there based in the United Kingdom?

RevenueBase identified 748 company matches for compliance and audit consulting companies associated with the United Kingdom as of September 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?

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

Which city has the most compliance and audit consulting companies?

London leads with 297 company records, followed by Manchester (21) and Birmingham (11).

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 2,819 professional contacts with verified work emails tracked across these 748 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 September 27, 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.