Best Data Protection Solicitors in Cardiff

Compare the best Data Protection solicitors and lawyers in Cardiff, ranked by verified client reviews: 24 law firms, updated 29 October 2026.

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71 legal firms matched Narrowed down from 305

In Wales, data protection law mirrors the English framework, applying UK GDPR and the Data Protection Act 2018 with Welsh institutions and bodies. A solicitor in this area helps organisations implement compliant data processing activities, draft and audit privacy notices and data sharing agreements, handle data subject rights requests, manage data breach responses, and liaise with the Information Commissioner’s Office (ICO) and Welsh public bodies on regulatory expectations.

1

Geldards LLP

4.8 202 Reviews

2

Duncan Lewis Solicitors Ltd

4.8 1,386 Reviews

1 Data Protection review

Free initial advice

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3

HCR Law

4.6 770 Reviews

1 Data Protection review

4

Irwin Mitchell Llp

4.7 13,776 Reviews

5

Darwin Gray LLP

Featured

5.0 271 Reviews

What Data Protection clients highlight

Always professional
Genuine empathy
Supportive representation
Responsive communication

5.0 from 271 client reviews

Speaks

6

JCP Solicitors

Featured

4.8 1,082 Reviews

What Data Protection clients highlight

friendly staff
informative advice
professional service
efficient process

4.8 from 1,082 client reviews

Speaks

7

Richard Nelson LLP

Featured

4.9 1,394 Reviews

What Data Protection clients highlight

knowledgeable staff
clear communication
very responsive
professional service

4.9 from 1,394 client reviews

Speaks

Free initial advice

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8

Red Kite Law LLP

4.8 1,705 Reviews

Free initial advice

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9

Hf Limited

4.7 408 Reviews

10

Blake Morgan LLP

4.9 89 Reviews

11

Thompsons Solicitors LLP

4.8 534 Reviews

1 Data Protection review

12

Reeds Solicitors LLP

4.9 156 Reviews

1 Data Protection review

13

Acuity Law Limited

5.0 19 Reviews

14

Weightmans Llp

5.0 2 Reviews

15

Browne Jacobson Llp

3.0 2 Reviews

16

Lewis Silkin LLP

5.0 1 Review

17

Hugh James

2.7 153 Reviews

1 Data Protection review

18

Clarke Willmott LLP

4.6 29 Reviews

19

Hpjv Solicitors Ltd

4.8 120 Reviews

20

Davisons Solicitors Limited

4.1 357 Reviews

Frequently asked questions

How are these solicitors ranked?

Rankings are worked out mainly from client reviews: the ratings clients give and how recent the reviews are, with reviews about Data Protection counting most. We also take into account how much of a firm's work is in Data Protection.

How often are the rankings updated?

Twice a week, every Thursday and Sunday, so new reviews are reflected quickly. This list was last updated on 29 October 2026.

Is it free to compare solicitors?

Yes. Comparing firms, reading reviews and sending your case summary to the firms you choose is free.

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Only the law firms you choose to send your case summary to. Nothing is shared until you press send, and your details are never shown on this page.

Why can I only send my case summary to some law firms?

Only law firms that have signed up to receive case summaries through us can be sent one. You can still contact any other firm directly from its profile.

How many Data Protection solicitors are there in Cardiff?

We have ranked 24 law firms for Data Protection in Cardiff, listed in order on this page.

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