Trustgent
Market map · Penetration testing × United Kingdom

The verified Penetration testing landscape in United Kingdom.

Every AI builder headquartered in United Kingdom whose Penetration testing listing is cross-referenced (L2) or higher against public sources the provider does not control. Ranked on earned proof, never paid placement.

Request verified quotes

26 verified builders qualify for this map, every one cross-referenced (L2) or higher. Order is earned: highest verification level first, ties broken by most-recent verification. A free-plan L5 provider always outranks a paid-plan L1; plan tier is never a ranking input.

Most recent verification on this map: 2026-07-07. This is a live view, the ranking updates as builders re-verify.

Choosing an AI builder? Don’t stop at the demo. Trustgent’s six-level verification scale(L0-L5) tells you how much of a provider’s claim is independently corroborated, and how ranking works explains why proof, not spend , sets the order. Work through the questions to ask a partner and the evaluation scorecard, then request verified quotes from the builders on this map.

Verified builders on this map

Secarma

Manchester, United Kingdom

Independent Manchester-based CREST and CHECK penetration testing consultancy

Penetration test…Red teamingVulnerability ma…+1 more
records
1
team
50-200
founded
2001

SECFORCE

London, United Kingdom

Strategic offensive security consultancy for UK financial services

Penetration test…Red teamingApplication secu…+1 more
records
1
team
10-50
founded
2008

Pentest People

Leeds, United Kingdom

Yorkshire-based CREST/CHECK pentest specialists delivering consultant-led PTaaS via SecurePortal

Penetration test…Vulnerability ma…Application secu…+1 more
records
1
team
50-200
founded
2018

OnSecurity

Bristol, United Kingdom

Productised, CREST-accredited pentest-as-a-service for the UK mid-market

Penetration test…Vulnerability ma…Red teaming+1 more
records
1
team
50-200
founded
2018

MDSec

Macclesfield, United Kingdom

Adversary-simulation specialists behind the Web Application Hacker's Handbook

Penetration test…Red teamingApplication secu…+1 more
records
1
team
50-200
founded
2011

Cyphere

Altrincham, United Kingdom

CREST-accredited cyber security services for the whole attack surface

Threat huntingPenetration test…Red teaming+2 more
records
1
team
2-10
founded
2020

Share this market map.

A ranked snapshot that stays current as builders re-verify. Post it to LinkedIn, download the image, or copy the link.

Share on LinkedInDownload image

On this map? Claim your listing.

If you’re one of these builders, claim your listing free to respond to buyers, embed your verified badge, and climb the verification scale. Ranking stays earned , claiming never buys position.

Claim it free

Related market maps

This is the shareable market map. For the full, indexed directory see the Penetration testing shortlist in United Kingdom →