Company lists · Data refreshed September 2026
Top 25 Compliance consultancy firms based in the United Kingdom
RevenueBase identified 1,104 compliance consultancy firms headquartered in the United Kingdom as of September 2026 and tracks 9,801 professional contacts across them, including 4,362 with verified work emails. London is the largest hub.
This list covers compliance consultancy 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 27, 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.
The 25 largest compliance consultancy firms based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,303 contacts → | ||||
Indirect evidence “Ideagen brings clarity and confidence to the safe hands and trusted voices protecting our world.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,189 contacts → | ||||
Indirect evidence “Through our industry leading technology and services, we power the businesses of 20% of the UK financial adviser market.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 3 | 453 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 4 | 291 contacts → | ||||
Partial evidence “The Citation Group offer unrivalled compliance and quality services to over businesses across the UK, Australia, New Zealand, and Canada.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 5 | 242 contacts → | ||||
Indirect evidence “We help our customers to do the right business in the right way.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 6 | 171 contacts → | ||||
Partial evidence “Alternative legal and compliance services developed by Eversheds Sutherland.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 7 | 141 contacts → | ||||
Partial evidence “Intelligent compliance solutions for outcomes that matter* We offer complete compliance solutions to help financial services firms solve their regulatory challenges.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 8 | 116 contacts → | ||||
Strong evidence “Whether you need end-to-end asbestos consultancy and management or are simply looking for accredited compliance training, you’ve come to the right place.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 9 | 108 contacts → | ||||
Partial evidence “VinciWorks believe compliance enables business.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 10 | 105 contacts → | ||||
Strong evidence “Acorn Analytical Services are a multi disciplined environmental consultancy, specifically set up to meet all of your asbestos management and statutory compliance needs.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 11 | 104 contacts → | ||||
Indirect evidence “Creating Safer Workplaces for Everyone.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 12 | 100 contacts → | ||||
Partial evidence “Veriforce CHAS is the UK’s leading provider of supply chain compliance and risk management solutions.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 13 | 99 contacts → | ||||
Indirect evidence “Sovos provides businesses with the confidence needed to navigate an increasingly regulated world.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 14 | 99 contacts → | ||||
Strong evidence “AEC is an employee-owned compliance consultancy and training organisation for the safe management of asbestos, water, fire and occupational hygiene in the built environment.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 15 | 92 contacts → | ||||
Partial evidence “AES Sustainability Consultants is a leading technical consultancy that delivers value engineered solutions across the homebuilding and construction industries.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 16 | 87 contacts → | ||||
Partial evidence “Idenfo is a global RegTech company helping organizations simplify compliance, strengthen risk management, and build trust through intelligent identity verification and AML…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 17 | 82 contacts → | ||||
Partial evidence “Ark Workplace Risk is the trusted partner for organisations seeking to take control of their risk, compliance, and safety.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 18 | 77 contacts → | ||||
Strong evidence “Founded in 1986, Assurity Consulting is an independent workplace compliance consultancy specialising in health, safety and environmental solutions, partnering with responsible…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 19 | 77 contacts → | ||||
Partial evidence “HR Consultancy | Employment Law | GDPR Service | Health & Safety | Fire Risk Assessments Call 033 33 215 005 or email info@wirehouse-es.com to arrange a quote for our services.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 20 | 76 contacts → | ||||
Strong evidence “Thistle Initiatives is an award‑winning management consultancy specialising in regulatory compliance, financial crime and business transformation.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 21 | 75 contacts → | ||||
Partial evidence “At 4site Consulting, we specialise in simplifying the complexities of property management compliance.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 22 | 67 contacts → | ||||
Partial evidence “Cosegic is the Compliance Partner to the world’s most competitive organisations.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 23 | 65 contacts → | ||||
Indirect evidence “At QCS, our mission is to support health and social care providers in delivering exceptional care.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 24 | 64 contacts → | ||||
Partial evidence “fscom is one of the premier specialist consulting firms providing governance, risk, and compliance solutions to financial services institutions in the UK and Ireland.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 25 | 55 contacts → | ||||
Partial evidence “GoodCorporation helps organisations to design, build and embed ethics and compliance programmes which we evaluate and benchmark.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: compliance consultancy firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names compliance consultancy firms.
- Partial evidence
- Its own public description names part of compliance consultancy firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name compliance consultancy firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 1,104 compliance consultancy firms based in the United Kingdom
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Compliance consultancy firms based in the United Kingdom at a glance
As of Sep 27, 2026Companies by employee count
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 1,104 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 compliance consultancy 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 “compliance consultancy 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 compliance consultancy 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 compliance consultancy 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, 4,362 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 27, 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.
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 compliance consultancy 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 compliance consultancy firms are there based in the United Kingdom?
RevenueBase identified 1,104 compliance consultancy 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?
Ideagen, headquartered in Nottingham, tops this list with the largest team on record.
Which city has the most compliance consultancy firms?
London leads with 296 headquartered companies, followed by Manchester (35) and Bristol (16).
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 4,362 verified decision-maker contacts tracked across these 1,104 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 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 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.
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