Company lists · Data refreshed September 2026

Top 25 Compliance consultancies based in London, United Kingdom

Name: Compliance consultancies based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 1,249 companies tracked

RevenueBase identified 1,249 compliance consultancies headquartered in London, United Kingdom as of September 2026 and tracks 7,917 professional contacts across them, including 3,233 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers compliance consultancies headquartered in London, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 27, 2026 86% judged on-target in blind review

1,249Companies

7,917Contacts tracked

3,233Verified emails

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The 25 largest compliance consultancies based in London, United Kingdom

Ranked by team size

Top 25 of 1,249 compliance consultancies based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to compliance consultancies: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Radley Yeldar	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	198 contacts →
	Indirect evidence “Radley Yeldar is an award-winning, independent London and Birmingham-based creative consultancy with more than 200 communications specialists.” Source: RevenueBase Database · checked Sep 27, 2026
2	Konexo	Partial evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	171 contacts →
	Partial evidence “Alternative legal and compliance services developed by Eversheds Sutherland.” Source: RevenueBase Database · checked Sep 27, 2026
3	Tetra Consulting	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	153 contacts →
	Indirect evidence “At Tetra, we make buildings safer for people.” Source: RevenueBase Database · checked Sep 27, 2026
4	Lansons Team Farner	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	143 contacts →
	Indirect evidence “Organisations and brands turn to us to shape, protect and transform their reputations.” Source: RevenueBase Database · checked Sep 27, 2026
5	Skillcast Group PLC	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	133 contacts →
	Indirect evidence “Skillcast helps companies build ethical, inclusive, and resilient workplaces.” Source: RevenueBase Database · checked Sep 27, 2026
6	Trpglobal	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	126 contacts →
	Indirect evidence “We are TRPGLOBAL, your strategic partner in helping you with the complexities of risk management.” Source: RevenueBase Database · checked Sep 27, 2026
7	Vinciworks	Partial evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	108 contacts →
	Partial evidence “VinciWorks believe compliance enables business.” Source: RevenueBase Database · checked Sep 27, 2026
8	Novatus	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	102 contacts →
	Indirect evidence “We enable financial services firms to meet their most complex regulatory requirements through specialist technology and expert-led advisory services.” Source: RevenueBase Database · checked Sep 27, 2026
9	RGE Services	Partial evidence	London, United KingdomHQ checked Sep 27, 2026	201-500	94 contacts →
	Partial evidence “We’ve been providing fire and electrical compliance services for over 30 years, supporting clients across London and the Southeast with our locally based engineers.” Source: RevenueBase Database · checked Sep 27, 2026
10	Greengage Environmental LTD	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	93 contacts →
	Indirect evidence “Greengage is an independent sustainability and environmental consultancy known for providing bespoke advice and working in partnership with our clients and multi-disciplinary…” Source: RevenueBase Database · checked Sep 27, 2026
11	Design Portfolio	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	82 contacts →
	Indirect evidence “Design Portfolio helps forward-thinking companies build trust with their stakeholders through creative storytelling, integrated communications, and sustainability strategies.” Source: RevenueBase Database · checked Sep 27, 2026
12	ARK Workplace Risk	Partial evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	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, 2026
13	Madano	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	76 contacts →
	Indirect evidence “Madano is committed to building a better world through intelligent and creative communications supported by in-depth insights.” Source: RevenueBase Database · checked Sep 27, 2026
14	Thistle Initiatives	Partial evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	76 contacts →
	Partial evidence “Thistle Initiatives is an award‑winning management consultancy specialising in regulatory compliance, financial crime and business transformation.” Source: RevenueBase Database · checked Sep 27, 2026
15	Aptivaa	Partial evidence	London, United KingdomHQ checked Sep 27, 2026	11-50	74 contacts →
	Partial evidence “Aptivaa is a vertically focused risk and compliance professional services firm delivering risk management solutions to the global financial services industry.” Source: RevenueBase Database · checked Sep 27, 2026
16	NEW Link Consulting	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	69 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 27, 2026
17	Hudson Sandler	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	67 contacts →
	Indirect evidence “We are an independent strategic communications and ESG consultancy headquartered in London.” Source: RevenueBase Database · checked Sep 27, 2026
18	Cosegic	Partial evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	67 contacts →
	Partial evidence “Cosegic is the Compliance Partner to the world’s most competitive organisations.” Source: RevenueBase Database · checked Sep 27, 2026
19	Project Partners	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	57 contacts →
	Indirect evidence “We are a team of specialists, delivering successful change by building dependable relationships and empowering teams.” Source: RevenueBase Database · checked Sep 27, 2026
20	Tricon Foodservice Consultants LTD	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	55 contacts →
	Indirect evidence “Tricon is the leading foodservice design and management consultancy across the EMEA region; working in partnership with international companies across all market sectors.” Source: RevenueBase Database · checked Sep 27, 2026
21	H Advisors Maitland	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	51 contacts →
	Indirect evidence “H/Advisors in the UK brings together the heritage, skills and insight of H/Advisors Maitland and H/Advisors Cicero to support leaders at their most important moments.” Source: RevenueBase Database · checked Sep 27, 2026
22	Think Learning	Partial evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	44 contacts →
	Partial evidence “Compliance shouldn’t be a burden.” Source: RevenueBase Database · checked Sep 27, 2026
23	Greyspark Partners	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	44 contacts →
	Indirect evidence “GreySpark Partners helps capital markets firms transform how they operate, compete and innovate.” Source: RevenueBase Database · checked Sep 27, 2026
24	Eight Versa	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	42 contacts →
	Indirect evidence “At Eight Versa, we deliver a new direction for a balanced future.” Source: RevenueBase Database · checked Sep 27, 2026
25	Rutherford	Partial evidence	London, United KingdomHQ checked Sep 27, 2026	11-50	42 contacts →
	Partial evidence “At Rutherford, we focus on compliance and legal recruitment within the financial, real estate and legal services sectors, with London and New York being our core focus.” Source: RevenueBase Database · checked Sep 27, 2026

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 consultancies. 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 consultancies.
Partial evidence: Its own public description names part of compliance consultancies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name compliance consultancies. 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 1,249 compliance consultancies based in London, United Kingdom

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Compliance consultancies based in London, United Kingdom at a glance

As of Sep 27, 2026

40.8%Verified-email coverage

6.3Average contacts per company

1-10Median size (employees)

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

924

11-50

249

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 1,249 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 consultancies, 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 London, United Kingdom whose own description of what they do matches “compliance consultancies”. 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 consultancies), 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 consultancies, and records with no verified work email. Companies headquartered outside London 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, 3,233 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.

Compliance consultancies by metro in the United Kingdom

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 consultancies, 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 consultancies are there based in London, United Kingdom?

RevenueBase identified 1,249 compliance consultancies headquartered in London, 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?

Radley Yeldar, headquartered in London, tops this list with the largest team on record.

Which city in the United Kingdom has the most compliance consultancies?

London leads the United Kingdom with 1,249 headquartered companies, followed by Manchester (108) and Bristol (52).

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 3,233 verified decision-maker contacts tracked across these 1,249 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.