Company lists · Data verified August 2026

Top 25 Data privacy consulting firms based in the United Kingdom

Name: Data privacy consulting firms based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 376 companies tracked

There are 376 data privacy consulting firms headquartered in the United Kingdom (RevenueBase, August 2026). RevenueBase tracks 1,981 professional contacts across them, including 748 with verified work emails and 128 with mobile numbers. London is the largest hub.

This list covers data privacy consulting firms headquartered in the United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

376Companies

1,981Contacts tracked

748Verified emails

128Mobile numbers

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The 25 largest data privacy consulting firms based in the United Kingdom

Ranked by team size

Top 25 of 376 data privacy consulting firms based in the United Kingdom, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Trpglobal	London	51-200	123	36
2	Calligo	Leicester	201-500	111	68
3	Evalian	Worcester	51-200	61	39
4	Daintta	London	51-200	61	18
5	Wrangu	London	51-200	58	42
6	Syrenis	Warrington	51-200	53	27
7	Data Protection People	Leeds	11-50	39	21
8	Seers AI	London	11-50	36	5
9	PM Dragonfly	London	11-50	29	4
10	Securys Limited	London	11-50	27	12
11	DPO Consultancy	London	11-50	24	3
12	Blackfoot Cybersecurity	Welwyn Garden City	11-50	23	13
13	ONE Compliance Cyber Limited	n/a	11-50	20	13
14	DPAS	Exeter	11-50	20	12
15	Razorthorn Security	Tunbridge Wells	11-50	18	14
16	DQM GRC	Bucks	11-50	18	13
17	IGS Information Governance Services	London	11-50	17	8
18	LEX Dinamica	London	11-50	17	5
19	B10sec	Cheltenham	11-50	16	6
20	Bruce & Butler	Sheffield	11-50	15	10
21	Salient Ediscovery	London	51-200	13	10
22	LEGIT	London	11-50	13	7
23	A Jolly Consulting	London	11-50	12	8
24	Pembroke Privacy	London	11-50	12	6
25	Data Privacy Manager	London	51-200	11	1

Showing 25 of 376 data privacy consulting firms based in the United Kingdom

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Data privacy consulting firms based in the United Kingdom at a glance

As of Aug 28, 2026

1-10Median size (employees)

LondonLargest hub · 158 HQs

128Contacts with mobile numbers

2Emails re-verified in last 30 days

Companies by employee count

1-10

288

11-50

51-200

201-500

Data privacy consulting firms by metro

Metro	Companies
Data privacy consulting firms in London	158
Data privacy consulting firms in Manchester	6
Data privacy consulting firms in Edinburgh	6
Data privacy consulting firms in Birmingham	5
Data privacy consulting firms in Leeds	4
Data privacy consulting firms in Cheltenham	4
Data privacy consulting firms in Worcester	4

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “data privacy consulting firms”, with match quality audited by blind human judging, and headquartered in the United Kingdom.
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: Contact records re-verify on a rolling cadence; 2 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many data privacy consulting firms are there based in the United Kingdom?

There are 376 data privacy consulting firms headquartered in the United Kingdom as of August 2026 (RevenueBase).

What is the largest company on this list?

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

Which city has the most data privacy consulting firms?

London leads with 158 headquartered companies, followed by Manchester (6) and Edinburgh (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 748 verified decision-maker contacts tracked across these 376 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.