Company lists · Data refreshed September 2026

Top 23 Data privacy compliance software based in London, United Kingdom

Name: Data privacy compliance software based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 10, 2026 75 companies tracked

RevenueBase identified 75 data privacy compliance software headquartered in London, United Kingdom as of September 2026 and tracks 458 professional contacts across them, including 148 with verified work emails and 15 with mobile numbers. London is the largest hub.

This list covers data privacy compliance software 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 10, 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 10, 2026 86% judged on-target in blind review

75Companies

458Contacts tracked

148Verified emails

15Mobile numbers

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The 23 largest data privacy compliance software based in London, United Kingdom

Ranked by team size

Top 23 of 75 data privacy compliance software based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 10, 2026. RevenueBase Smart Search rates how each company's information relates to data privacy compliance software: 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	Seers AI	Strong evidence	London, United KingdomHQ checked Sep 10, 2026	11-50	36 contacts →
	Strong 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 10, 2026
2	Privacy Culture	Partial evidence	London, United KingdomHQ checked Sep 10, 2026	11-50	28 contacts →
	Partial evidence “Privacy Culture helps organisations build trust through expert privacy services supported by powerful technology.” Source: RevenueBase Database · checked Sep 10, 2026
3	Origin Secured	Partial evidence	London, United KingdomHQ checked Sep 10, 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 10, 2026
4	IGS Information Governance Services	Strong evidence	London, United KingdomHQ checked Sep 10, 2026	11-50	15 contacts →
	Strong 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 10, 2026
5	Kazient Privacy Experts Data Protection Made Easy Peasy	Strong evidence	London, United KingdomHQ checked Sep 10, 2026	1-10	13 contacts →
	Strong 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 10, 2026
6	Data Privacy Manager	Strong evidence	London, United KingdomHQ checked Sep 10, 2026	51-200	11 contacts →
	Strong evidence “Data Privacy Manager is a comprehensive privacy solution for personal data management, set out to protect digital privacy and help Organizations comply with data protection laws…” Source: RevenueBase Database · checked Sep 10, 2026
7	Trust Keith Your Always-On Privacy Partner	Strong evidence	London, United KingdomHQ checked Sep 10, 2026	11-50	10 contacts →
	Strong evidence “Trust Keith is the global Privacy Management solution for data-centric SMBs with big ambitions.” Source: RevenueBase Database · checked Sep 10, 2026
8	Privacy Partnership	Strong evidence	London, United KingdomHQ checked Sep 10, 2026	11-50	10 contacts →
	Strong evidence “Data Protection and Privacy Law firm, Training and Consultancy.” Source: RevenueBase Database · checked Sep 10, 2026
9	Ig-Smart LTD	Strong evidence	London, United KingdomHQ checked Sep 10, 2026	11-50	5 contacts →
	Strong evidence “Business Overview Established in 2009, IG-Smart Ltd is a pioneering force in the realm of data privacy, security, and digital technology consultancy.” Source: RevenueBase Database · checked Sep 10, 2026
10	Keepabl	Indirect evidence	London, United KingdomHQ checked Sep 10, 2026	11-50	5 contacts →
	Indirect evidence “You may have good Assessments but your process sucks.” Source: RevenueBase Database · checked Sep 10, 2026
11	Proteus-Cyber LTD	Strong evidence	London, United KingdomHQ checked Sep 10, 2026	1-10	4 contacts →
	Strong evidence “Proteus NextGen Data Privacy software provides DPOs, Privacy teams and Legal teams with the data privacy management tools required to manage GDPR compliance, CCPA compliance or…” Source: RevenueBase Database · checked Sep 10, 2026
12	The Privacy Compliance HUB	Partial evidence	London, United KingdomHQ checked Sep 10, 2026	1-10	3 contacts →
	Partial evidence “We believe that to protect personal information you need to build and maintain a culture of continuous compliance.” Source: RevenueBase Database · checked Sep 10, 2026
13	Onteigo	Strong evidence	London, United KingdomHQ checked Sep 10, 2026	1-10	2 contacts →
	Strong evidence “Onteigo is the global data protection compliance partner for data-driven startups and scaleups.” Source: RevenueBase Database · checked Sep 10, 2026
14	Assenteo	Strong evidence	London, United KingdomHQ checked Sep 10, 2026	1-10	2 contacts →
	Strong evidence “Assenteo is a data protection and AI governance platform that helps customer-first, b2b AI companies embed trust into their products, through expert-led compliance.” Source: RevenueBase Database · checked Sep 10, 2026
15	The Privacy Consultancy Limited	Strong evidence	London, United KingdomHQ checked Sep 10, 2026	1-10	1 contacts →
	Strong evidence “Let Privacy be a Business enabler not a Business restrictor’ First the GDPR, now for Individuals and Companies in the UK we have the UK Data Protection Act 2018 – further…” Source: RevenueBase Database · checked Sep 10, 2026
16	Icompli Limited	Partial evidence	London, United KingdomHQ checked Sep 10, 2026	1-10	1 contacts →
	Partial evidence “It's NOT impossible, The lawful, PROFITABLE, ethical use of personal data is a very realistic, achievable goal.” Source: RevenueBase Database · checked Sep 10, 2026
17	Measured Collective	Partial evidence	London, United KingdomHQ checked Sep 10, 2026	1-10	1 contacts →
	Partial evidence “We all need to do data protection training.” Source: RevenueBase Database · checked Sep 10, 2026
18	With Wisdom	Strong evidence	London, United KingdomHQ checked Sep 10, 2026	1-10	1 contacts →
	Strong evidence “Working with organisations to improve personal data processing to provide legal compliant privacy.” Source: RevenueBase Database · checked Sep 10, 2026
19	Bayvision Limited	Strong evidence	London, United KingdomHQ checked Sep 10, 2026	1-10	1 contacts →
	Strong evidence “Bayvision is specialised in providing Enterprise-wide Security and Data Privacy services to business, across multiple domains- Information Security - Privacy - Software…” Source: RevenueBase Database · checked Sep 10, 2026
20	Complygdpr	Partial evidence	London, United KingdomHQ checked Sep 10, 2026	1-10	1 contacts →
	Partial evidence “ComplyGDPR provides comprehensive guidance, support and training services to help executive search and recruitment businesses meet their data protection obligations, including…” Source: RevenueBase Database · checked Sep 10, 2026
21	Data Protection 4 Business Limited	Strong evidence	London, United KingdomHQ checked Sep 10, 2026	1-10	1 contacts →
	Strong evidence “Through our network of Trusted Partners, Data Protection 4 Business provides a full range of compliance services from Legal advice, Information Security assessments, Data…” Source: RevenueBase Database · checked Sep 10, 2026
22	The Privacy Worx LTD	Indirect evidence	London, United KingdomHQ checked Sep 10, 2026	1-10	1 contacts →
	Indirect evidence “From the beginning, our approach was simple, we look at things differently.” Source: RevenueBase Database · checked Sep 10, 2026
23	The Data Guardians	Partial evidence	London, United KingdomHQ checked Sep 10, 2026	1-10	1 contacts →
	Partial evidence “The Data Guardians exist to enable organisations to comply with data protection regulations as well as to extract maximum value from data.” Source: RevenueBase Database · checked Sep 10, 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 privacy compliance software. 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 privacy compliance software.
Partial evidence: Its own public description names part of data privacy compliance software, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name data privacy compliance software. 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 23 of 75 data privacy compliance software based in London, United Kingdom

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Data privacy compliance software based in London, United Kingdom at a glance

As of Sep 10, 2026

32.3%Verified-email coverage

3.3%Mobile-number coverage

6.1Average contacts per company

1-10Median size (employees)

106.7%Largest-city concentration · London

Sep 10, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 12.5d

1340–30

1331–60

061–90

190–180

0180+

Company record updated

Median 62.0d

00–30

17631–60

20961–90

4490–180

29180+

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 privacy compliance software, 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 “data privacy compliance software”. 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 privacy compliance software), 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 privacy compliance software, 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, 148 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 10, 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 privacy compliance software by metro in the United Kingdom

Data privacy compliance software in London80

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 privacy compliance software, 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 privacy compliance software are there based in London, United Kingdom?

RevenueBase identified 75 data privacy compliance software 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?

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

Which city has the most data privacy compliance software?

London leads with 80 headquartered companies, followed by Birmingham (5) and Manchester (5).

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 148 verified decision-maker contacts tracked across these 75 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 10, 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.