Company lists · Data refreshed September 2026

Top 25 IT compliance consulting firms based in London, United Kingdom

Name: IT compliance consulting firms based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 181 companies tracked

RevenueBase identified 181 IT compliance consulting firms headquartered in London, United Kingdom as of September 2026 and tracks 893 professional contacts across them, including 293 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers IT compliance consulting firms 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 28, 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 28, 2026 86% judged on-target in blind review

181Companies

893Contacts tracked

293Verified emails

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The 25 largest IT compliance consulting firms based in London, United Kingdom

Ranked by team size

Top 25 of 181 IT compliance consulting firms based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to IT compliance 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Trpglobal	Indirect evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
2	Complyport	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	36 contacts →
	Indirect evidence “Welcome to Complyport - member of ComplyMAP Group!” Source: RevenueBase Database · checked Sep 28, 2026
3	RQC Group	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	34 contacts →
	Strong evidence “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…” Source: RevenueBase Database · checked Sep 28, 2026
4	Bowmen Group	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	25 contacts →
	Indirect evidence “Through our consultative approach, specialised skills and innovative delivery model, Bowmen Group successfully implements some of the largest, most complex and notable unified…” Source: RevenueBase Database · checked Sep 28, 2026
5	LMS Security	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	20 contacts →
	Indirect evidence “LMS Security are a fully Independent, privately owned, Internationally recognised and accredited Security Consultancy; owned and built by Electronic and Physical Security…” Source: RevenueBase Database · checked Sep 28, 2026
6	Consultants Factory	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	20 contacts →
	Partial evidence “We at CF assist enterprises manage IT risks better.” Source: RevenueBase Database · checked Sep 28, 2026
7	Reg-1	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	19 contacts →
	Partial evidence “Reg-1 is a Compliance as a Service (CaaS) platform which aims to augment existing compliance teams with a real-time compliance dashboard helping consolidate a firm's assesisment…” Source: RevenueBase Database · checked Sep 28, 2026
8	LEX Dinamica	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	17 contacts →
	Partial evidence “Lex Dinamica is a consulting firm that provides Privacy, AI and Risk solutions.” Source: RevenueBase Database · checked Sep 28, 2026
9	Forti5 Technologies	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	15 contacts →
	Indirect evidence “We help organisations keep their data safe, use technology responsibly, and stay on the right side of the law, without the jargon.” Source: RevenueBase Database · checked Sep 28, 2026
10	IGS Information Governance Services	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	15 contacts →
	Indirect evidence “We are a specialist data protection and data ethics consultancy firm with an expert team of lawyers, consultants and advisors who provide a wide range of data privacy, data…” Source: RevenueBase Database · checked Sep 28, 2026
11	Complycraft Consulting	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	14 contacts →
	Partial evidence “We are an independent (employee owned) compliance consultancy providing services to FCA regulated firms and to other compliance consultancies.” Source: RevenueBase Database · checked Sep 28, 2026
12	Risk Crew	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	14 contacts →
	Indirect evidence “Risk Crew is known for their vision, innovative thinking and facility to embrace change.” Source: RevenueBase Database · checked Sep 28, 2026
13	Salient Ediscovery	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	13 contacts →
	Indirect evidence “At Salient, we pride ourselves on the diverse skill sets and extraordinary experience that enable our teams to bring invaluable insights and exceptional adaptability to each and…” Source: RevenueBase Database · checked Sep 28, 2026
14	Adoptech	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	13 contacts →
	Partial evidence “Our aim is to help businesses prepare for security audits and maintain ongoing compliance efficiently and effectively.” Source: RevenueBase Database · checked Sep 28, 2026
15	1rs- 1st Risk Solutions	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	13 contacts →
	Partial evidence “1st Risk Solutions is a risk and compliance specialist firm providing pragmatic, effective solutions to enterprise risk management and regulatory requirements.” Source: RevenueBase Database · checked Sep 28, 2026
16	Kazient Privacy Experts Data Protection Made Easy Peasy	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	13 contacts →
	Indirect evidence “At Kazient Privacy Experts, our Privacy, Data Protection and GDPR consultants offer cutting edge, practical and effective solutions for all your privacy and data protection…” Source: RevenueBase Database · checked Sep 28, 2026
17	ABM Global Compliance	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	13 contacts →
	Partial evidence “ABM Global Compliance specializes in providing financial services to various compliance firms, whose vast experience of regulatory matters in the financial services sector can…” Source: RevenueBase Database · checked Sep 28, 2026
18	2-Sec	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	11 contacts →
	Partial evidence “At 2\|SEC Consulting, we deliver an end-to-end service of cyber and information security solutions which are tailored to each client’s exact security needs.” Source: RevenueBase Database · checked Sep 28, 2026
19	Xcina Consulting	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	9 contacts →
	Partial evidence “At Xcina Consulting we leverage a deep and experienced pool of skilled consultants to deliver all our assurance and advisory services.” Source: RevenueBase Database · checked Sep 28, 2026
20	Fintech Compliance	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	9 contacts →
	Partial evidence “FinTech Compliance was established after the need for specialist FCA Compliance expertise in Technology based, Innovative, and Alternative Finance businesses became apparent.” Source: RevenueBase Database · checked Sep 28, 2026
21	Locked Stack	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	8 contacts →
	Indirect evidence “Locked Stack is an independent cybersecurity consultancy and managed services firm headquartered in London, with a US subsidiary, operating across North America, Europe, and the…” Source: RevenueBase Database · checked Sep 28, 2026
22	Stratia Cyber	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	8 contacts →
	Indirect evidence “Stratia Cyber is an independent, technology agnostic company providing high quality, pragmatic cyber security consultancy and expertise, is a founder member of the NCSC Certified…” Source: RevenueBase Database · checked Sep 28, 2026
23	Assured Clarity Limited	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	7 contacts →
	Indirect evidence “We are a global consultancy firm that specializes in Digital Risk Management and Data Privacy/Data Protection, while also ensuring robust Cyber Security measures for our clients.” Source: RevenueBase Database · checked Sep 28, 2026
24	Cortida	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	7 contacts →
	Indirect evidence “Through excellent consultancy we protect clients from reputation damage, financial penalties and the operational disruption associated with data incidents and cyberattacks.” Source: RevenueBase Database · checked Sep 28, 2026
25	Comsura	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	7 contacts →
	Partial evidence “Comsura is a compliance consultancy for regulated firms.” Source: RevenueBase Database · checked Sep 28, 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: IT compliance consulting 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 IT compliance consulting firms.
Partial evidence: Its own public description names part of IT compliance consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name IT compliance consulting 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 181 IT compliance consulting firms based in London, United Kingdom

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IT compliance consulting firms based in London, United Kingdom at a glance

As of Sep 28, 2026

32.8%Verified-email coverage

4.9Average contacts per company

1-10Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

126

11-50

51-200

201-500

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 181 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 IT compliance 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 London, United Kingdom whose own description of what they do matches “IT compliance 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 IT compliance 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 IT compliance consulting firms, 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, 293 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 28, 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 IT compliance 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 IT compliance consulting firms are there based in London, United Kingdom?

RevenueBase identified 181 IT compliance consulting firms 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?

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

Which city in the United Kingdom has the most IT compliance consulting firms?

London leads the United Kingdom with 181 headquartered companies, followed by Manchester (15) and Birmingham (8).

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 293 verified decision-maker contacts tracked across these 181 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 28, 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.