Company lists · Data refreshed November 2026

Top 25 Data subject rights advisors based in the United Kingdom

RevenueBase identified 101 company matches for data subject rights advisors associated with the United Kingdom as of November 2026 and tracks 558 professional contacts across them, including 205 with verified work emails. London is the largest hub.

This list covers company matches for data subject rights advisors associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
101Companies
558Contacts tracked
205Verified emails
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The 25 largest data subject rights advisors based in the United Kingdom

Ranked by team size
Top 25 of 101 company matches for data subject rights advisors based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-5057 contacts →

Exact match

“HewardMills provides regulatory advice and other specialist Data Protection Officer (DPO) services to multinational organisations.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchLeeds, United KingdomHQ recorded Nov 6, 202611-5044 contacts →

Exact match

“Data Protection People are specialists in Data Protection and Information Security.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-5031 contacts →

Exact match

“We believe privacy matters because people matter.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-5026 contacts →

Exact match

“Privacy Culture helps organisations build trust through expert privacy services supported by powerful technology.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Nov 6, 20261-1017 contacts →

Exact match

“We support our clients to comply with the law.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-5014 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchPinner, United KingdomHQ recorded Nov 6, 20261-1013 contacts →

Exact match

“Privacy Laws & Business is a UK-based, independent, international privacy laws information service.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Nov 6, 202651-20012 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Nov 6, 20261-1011 contacts →

Exact match

“We are an innovative data protection law firm offering legal data protection advice, outsourced DPO services and data protection training.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Nov 6, 20261-1011 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-5010 contacts →

Exact match

“Data Protection and Privacy Law firm, Training and Consultancy.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchCambridge, United KingdomHQ recorded Nov 6, 20261-1010 contacts →

Exact match

“Your GDPR and cyber security law experts”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchBedford, United KingdomHQ recorded Nov 6, 20261-1010 contacts →

Exact match

“At Data Privacy Simplified, we understand that Data Privacy is not easy.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchCanary Wharf, United KingdomHQ recorded Nov 6, 20261-109 contacts →

Exact match

“priviness helps boards and senior leaders get the business of AI, cyber, data protection and privacy right.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchBedford, United KingdomHQ recorded Nov 6, 202611-508 contacts →

Exact match

“Privacy Helper is a leading UK privacy consultancy, providing zero-fuss GDPR guidance to organisations in the UK and globally.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchHarrogate, United KingdomHQ recorded Nov 6, 20261-107 contacts →

Exact match

“Leaders in data protection compliance for clinical practices Stricter legislation governing the use of clinical data has created a new challenge for healthcare organisations.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchArrington, United KingdomHQ recorded Nov 6, 20261-107 contacts →

Exact match

“We are Hope & May.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchBuffery & Co Limited, United KingdomHQ recorded Nov 6, 202611-505 contacts →

Exact match

“Compliance with UK GDPR is not only a matter of fulfilling a legal requirement, it is also a key route to leveraging data and gaining a competitive edge in your market.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchLondon, United KingdomHQ recorded Nov 6, 20261-104 contacts →

Exact match

“Firebird is an independent company with over 20 years experience in the data protection field.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchLondon, United KingdomHQ recorded Nov 6, 20261-104 contacts →

Exact match

“The new General Data Protection Regulation comes into full effect in May 2018, with new rules for automatic notification of data breaches, appointment of data protection officers…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchBrighton, United KingdomHQ recorded Nov 6, 20261-104 contacts →

Exact match

“Kafico Ltd are data compliance experts who support customers across the UK and internationally.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchLondon, United KingdomHQ recorded Nov 6, 20261-103 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchDownside, United KingdomHQ recorded Nov 6, 20261-103 contacts →

Exact match

“We are GDPR Compliance Consultants and we help you get GDPR right: holding the right personal data, in the right way, for the right amount of time and for the right reasons.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchTadworth, United KingdomHQ recorded Nov 6, 20261-102 contacts →

Exact match

“Practical Privacy Ltd is a data protection consultancy offering both legal and practical advice on data protection for our clients.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchLondon, United KingdomHQ recorded Nov 6, 20261-102 contacts →

Exact match

“Contextul is the leading AI-powered solution that provides businesses of all sizes with powerful insights from their documents.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 101 data subject rights advisors based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 205 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Data subject rights advisors based in the United Kingdom at a glance

As of Nov 6, 2026
36.7%Verified-email coverage
5.5Average contacts per company
1-10Median size (employees)
39.6%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
81
11-50
17
51-200
1

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 101 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United Kingdom whose business descriptions match “data subject rights advisors” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 205 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Data subject rights advisors by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “data subject rights advisors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many data subject rights advisors are there based in the United Kingdom?

RevenueBase identified 101 company matches for data subject rights advisors associated with the United Kingdom as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Hewardmills tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most data subject rights advisors?

London leads with 40 company records, followed by Bedford (2) and Bristol (2).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 205 professional contacts with verified work emails tracked across these 101 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 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 SmartSearch, 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.