Company lists · Data refreshed September 2026

Top 25 Data compliance companies based in the United Kingdom

Name: Data compliance companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 361 companies tracked

RevenueBase identified 361 data compliance companies headquartered in the United Kingdom as of September 2026 and tracks 1,697 professional contacts across them, including 685 with verified work emails. London is the largest hub.

This list covers data compliance companies 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 21, 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 21, 2026 86% judged on-target in blind review

361Companies

1,697Contacts tracked

685Verified emails

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The 25 largest data compliance companies based in the United Kingdom

Ranked by team size

Top 25 of 361 data compliance companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to data compliance companies: 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	The DPO Centre LTD	Partial evidence	Liverpool Street, United KingdomHQ checked Sep 21, 2026	51-200	84 contacts →
	Partial evidence “The DPO Centre is the leading provider of fractional Data Protection Officer (DPO) resources, delivering expert data protection, AI Governance and privacy services from our…” Source: RevenueBase Database · checked Sep 21, 2026
2	Evalian	Indirect evidence	Southampton, United KingdomHQ checked Sep 21, 2026	51-200	60 contacts →
	Indirect evidence “Many organisations are dealing with multiple frameworks, overlapping tools, disconnected ownership, and increasing pressure from regulators, customers, and boards.” Source: RevenueBase Database · checked Sep 21, 2026
3	Hewardmills	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	11-50	46 contacts →
	Partial evidence “HewardMills provides regulatory advice and other specialist Data Protection Officer (DPO) services to multinational organisations.” Source: RevenueBase Database · checked Sep 21, 2026
4	Data Protection People	Partial evidence	Leeds, United KingdomHQ checked Sep 21, 2026	11-50	39 contacts →
	Partial evidence “Data Protection People are specialists in Data Protection and Information Security.” Source: RevenueBase Database · checked Sep 21, 2026
5	Seers AI	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	11-50	36 contacts →
	Partial evidence “Seers is an AI-driven consent management platform that empowers businesses to meet global data privacy requirements with confidence and ease.” Source: RevenueBase Database · checked Sep 21, 2026
6	DBS Datamarketing LTD	Partial evidence	Chelmsford, United KingdomHQ checked Sep 21, 2026	11-50	33 contacts →
	Partial evidence “We are passionate about data… and we have been since 1994.” Source: RevenueBase Database · checked Sep 21, 2026
7	Privitar	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	30 contacts →
	Partial evidence “Privitar empowers organizations to use their data safely and ethically.” Source: RevenueBase Database · checked Sep 21, 2026
8	Securys Limited	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	11-50	28 contacts →
	Indirect evidence “We believe privacy matters because people matter.” Source: RevenueBase Database · checked Sep 21, 2026
9	Privacy Culture	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	11-50	28 contacts →
	Indirect evidence “Privacy Culture helps organisations build trust through expert privacy services supported by powerful technology.” Source: RevenueBase Database · checked Sep 21, 2026
10	Cookieyes	Indirect evidence	Milton Keynes, United KingdomHQ checked Sep 21, 2026	11-50	25 contacts →
	Indirect evidence “CookieYes is a leading consent management platform (CMP) that helps businesses comply with privacy regulations such as GDPR, CCPA, LGPD, POPIA, and more.” Source: RevenueBase Database · checked Sep 21, 2026
11	Oyster IMS	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	11-50	24 contacts →
	Partial evidence “Data Protection * Information Governance * InfoSec Award-winning specialists in information governance and records management, with proven solutions for data discovery, data…” Source: RevenueBase Database · checked Sep 21, 2026
12	ONE Compliance Cyber Limited	Strong evidence	Leeds, United KingdomHQ checked Sep 21, 2026	11-50	20 contacts →
	Strong evidence “One Compliance are data privacy & cyber security specialists that focus on improving our clients security posture so that they can prioritise and mitigate security risks…” Source: RevenueBase Database · checked Sep 21, 2026
13	DPAS	Strong evidence	Exeter, United KingdomHQ checked Sep 21, 2026	11-50	19 contacts →
	Strong evidence “Is your organisation confident in its data protection compliance?” Source: RevenueBase Database · checked Sep 21, 2026
14	Origin Secured	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	11-50	19 contacts →
	Partial evidence “Origin Secured redefines data excellence, turning regulatory challenges and business risk into opportunities for efficiency and cost savings.” Source: RevenueBase Database · checked Sep 21, 2026
15	Gdprlocal LTD	Strong evidence	Brighton, United KingdomHQ checked Sep 21, 2026	11-50	18 contacts →
	Strong evidence “GDPRLocal is a dynamic, high-tech, data protection company, providing GDPR compliant services to a wide range of companies across the EU and globally.” Source: RevenueBase Database · checked Sep 21, 2026
16	DQM GRC	Partial evidence	High Wycombe, United KingdomHQ checked Sep 21, 2026	11-50	17 contacts →
	Partial evidence “We are the award-winning data protection consultancy and auditing service provider that helps organisations see data protection as an enabler for innovation.” Source: RevenueBase Database · checked Sep 21, 2026
17	Teal Compliance	Partial evidence	Salford, United KingdomHQ checked Sep 21, 2026	11-50	17 contacts →
	Partial evidence “Teal Compliance provides support to Law Firms with Compliance.” Source: RevenueBase Database · checked Sep 21, 2026
18	LEX Dinamica	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	11-50	17 contacts →
	Indirect evidence “Lex Dinamica is a consulting firm that provides Privacy, AI and Risk solutions.” Source: RevenueBase Database · checked Sep 21, 2026
19	Bruce & Butler	Partial evidence	Sheffield, United KingdomHQ checked Sep 21, 2026	11-50	15 contacts →
	Partial evidence “Bruce & Butler Limited are your partners in Data Protection & Cyber Security.” Source: RevenueBase Database · checked Sep 21, 2026
20	Digital Control Room	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	11-50	15 contacts →
	Partial evidence “Digital Control Room is the first and only automated compliance platform that continually monitors all your online content worldwide - giving pharmaceutical companies complete…” Source: RevenueBase Database · checked Sep 21, 2026
21	Forti5 Technologies	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	1-10	15 contacts →
	Partial 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 21, 2026
22	IGS Information Governance Services	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	11-50	15 contacts →
	Partial 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 21, 2026
23	Naomi Korn Associates	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	1-10	14 contacts →
	Indirect evidence “We support our clients to comply with the law.” Source: RevenueBase Database · checked Sep 21, 2026
24	Salient Ediscovery	Indirect evidence	London, United KingdomHQ checked Sep 21, 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 21, 2026
25	Adoptech	Partial evidence	London, United KingdomHQ checked Sep 21, 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 21, 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: data compliance companies. 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 data compliance companies.
Partial evidence: Its own public description names part of data compliance companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name data compliance companies. 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 361 data compliance companies based in the United Kingdom

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Data compliance companies based in the United Kingdom at a glance

As of Sep 21, 2026

40.4%Verified-email coverage

4.7Average contacts per company

1-10Median size (employees)

34.9%Largest-city concentration · London

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

282

11-50

51-200

501-1,000

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 361 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 data compliance companies, 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 “data compliance companies”. 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 data compliance companies), 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 data compliance companies, 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, 685 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 21, 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.

Data compliance companies by metro

Data compliance companies in London126

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 data compliance companies, 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 data compliance companies are there based in the United Kingdom?

RevenueBase identified 361 data compliance companies 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?

The DPO Centre LTD, headquartered in London, tops this list with the largest team on record.

Which city has the most data compliance companies?

London leads with 126 headquartered companies, followed by Birmingham (7) and Bristol (6).

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 685 verified decision-maker contacts tracked across these 361 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 21, 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.