cybersecdirectory

All companies

Every cybersecurity vendor and service firm on the list. Tick the filters to build a shortlist, then open a profile to see who owns the company and what it does. You can also browse by category or country, or see recent deals.

Results

12 companies

See also MDR providers and companies based in the United Kingdom.

CompanyCategoryBased inFoundedOwnership
Bridewell

Fast-growing CREST and CHECK-accredited UK cybersecurity consultancy with deep expertise in critical national infrastructure sectors.

Penetration testingBristol, United Kingdom2013Owned by I-TRACING
Claranet

CREST and CHECK-accredited European managed services provider delivering penetration testing with deep infrastructure and cloud hosting expertise.

Penetration testingLondon, United Kingdom1996Private
CybaVerse

CybaVerse provides a unified cyber security operations platform called CybaOps.

Managed detection and responsePortsmouth, United Kingdom2018Private
CyberLab

Cardiff-based CREST and CHECK-accredited cyber security company delivering penetration testing, red teaming, and OT security assessments as part of the Chess Group.

Penetration testingCardiff, United Kingdom2020Owned by Chess
Cydome

Provides cybersecurity protection and risk management for maritime vessels, offshore facilities and ports.

OT and ICS securityLondon, United KingdomPrivate
Darktrace

Darktrace provides AI-powered cybersecurity solutions that detect and respond to threats across networks, cloud, email, and AI systems.

Network detection and responseCambridge, United Kingdom2013Owned by Thoma Bravo
Deloitte

Cyber advisory and managed security services, including managed extended detection and response, cloud security, digital identity and threat intelligence, from a global professional services network.

Managed security servicesLondon, United KingdomPrivate
JUMPSEC

Full-service London-based cybersecurity consultancy with CREST, CHECK, and NCSC accreditations delivering offensive testing, managed detection, and strategic advisory services.

Penetration testingLondon, United Kingdom2012Private
NCC Group

Global cybersecurity consultancy with CREST, CHECK, and CBEST accreditation, renowned for deep technical research and penetration testing services.

Penetration testingManchester, United Kingdom1999Public, NCC
Pen Test Partners

The UK's largest independent security testing firm, renowned for IoT/OT research, CBEST red teaming, and CHECK/CREST-accredited penetration testing across all sectors.

Penetration testingBuckingham, United Kingdom2010Private
Redscan (A Kroll Business)

London-based cybersecurity provider, now part of Kroll, delivering CREST-accredited penetration testing, managed detection and response, and incident response with a 550-strong cyber team.

Penetration testingLondon, United Kingdom2002Part of Kroll
ThreatSpike Red

London-based cybersecurity firm offering unlimited, fixed-price penetration testing and red teaming services with ISO 27001 certification and a unique subscription model.

Penetration testingLondon, United Kingdom2011Private