Penetration testing in United Kingdom

These 14 penetration testing providers say they serve clients in United Kingdom. Most SOC 2 and ISO audits expect a recent penetration test, and any of these providers say they can run one.

Updated 1 Oct 2026. How we research

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Firms listed (of penetration testing providers): 14
Published prices: €1,500 to €10,000 · $3,000 to $15,000
Checked in an official register: 3 of 14

How to choose a penetration testing provider

Check what is in scope (web app, API, cloud, mobile), who does the testing, and whether the report is acceptable to your auditor. Ask about re-testing after you fix findings.

Some providers are firms with testers on staff and some are platforms that match you with testers. Both can work, so ask who is accountable for the report.

Related lists

Do I need a penetration test for SOC 2?

It is not strictly required, but many auditors and customers expect a recent one.

What does CREST accredited mean?

CREST is a body that accredits penetration testing companies. We show it only when the firm states it or a register confirms it.

How is this list ordered?

By the sort you choose. The default is the number of verified credentials, then alphabetical. Payment never changes the order, and a Featured slot is shown apart from the results and labelled as paid.