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Find a pentest company with Cyber Essentials

114 companies have this certification

Cyber Essentials Certification


Origin


Cyber Essentials was created by the UK Government in 2014 in collaboration with industry experts and the National Cyber Security Centre (NCSC). The scheme was developed in response to the growing threat of cybercrime and the recognition that many cyber attacks could be prevented through basic security controls. It was designed to help organizations of all sizes protect themselves against common internet-based threats and establish a baseline of cybersecurity hygiene.


Industry Value and Importance


Cyber Essentials is highly valued in both public and private sectors as it demonstrates an organization's commitment to cybersecurity. UK government contracts involving handling of sensitive and personal information require Cyber Essentials certification as a mandatory prerequisite. Beyond compliance, the certification helps organizations reduce their vulnerability to approximately 80% of common cyber attacks, provides insurance benefits with some providers offering premium reductions, and serves as a trust signal to customers and partners. Many businesses also require their suppliers to hold the certification as part of their supply chain security requirements, making it increasingly important for maintaining competitive advantage in the marketplace.

Pulsar Security

Pulsar Security

Network Penetration Testing
Londonderry, United States 16 employees

Cybersecurity company specializing in network penetration testing, web application testing, and security assessments; 13 employees with -5.9% YoY growth; headquartered in Londonderry, New Hampshire, USA; serves education, hospitality, media, and digital content industries; active in security research and industry events.

Penetration Testing
Vulnerability Assessment
Red Team Engagements
+2 more
Cyber Cops

Cyber Cops

Vulnerability Assessment and P...
New Jersey 65 employees

IT security services company based in Pennsauken, New Jersey; specializes in cybersecurity solutions including vulnerability assessment and penetration testing (VAPT) as a Service; offers compliance services like SOC 2 and HIPAA; emphasizes advanced cybersecurity measures.

Vulnerability Assessment And Penetration Testing (vapt) As A Service
Managed Detection And Response (mdr) As A Service
Cyber Essentials
+5 more
Carden IT Services

Carden IT Services

Web Application Testing
New York 51 employees

New York-based IT services provider specializing in cybersecurity, including penetration testing and security audits; headquartered at 85 Broad Street, New York, NY 10004; offers security assessments involving simulated attacks to evaluate client defenses.

Managed IT Services
IT Support
IT Security
+5 more
Emsco Solutions

Emsco Solutions

Network Penetration Testing
Oklahoma City, United States 51 employees

Private cloud services and network security provider specializing in penetration testing, vulnerability assessments, and segmentation testing; based in Oklahoma City, Oklahoma, with 3 employees since 1948. Offers IT and cybersecurity services across Oklahoma region.

IT Services
Cloud Services
Network Security Solutions
+5 more
eStreet Security

eStreet Security

Comprehensive Penetration Test...
Dallas, United States 14 employees

eStreet Security is a private cybersecurity firm headquartered in Dallas, Texas, founded in 2024, with 7 employees and 40% annual growth. Specializing in penetration testing, vulnerability management, and compliance standards like ISO 27001, NIST, and PCI DSS, it actively provides pentest services, supported by job postings for pentesting roles. The company maintains a modest online presence with 1,565 monthly visits and a global rank of #8,604,242.

Penetration Testing
Vulnerability Assessment
Security Awareness Training
+5 more
Silverfort

Silverfort

Identity Security and Privileg...
Texas 500 employees

Silverfort is a privately owned cybersecurity firm headquartered in Plano, Texas, United States. It specializes in identity security and visibility intelligence, serving over 1,000 organizations worldwide. The company provides comprehensive identity protection across human, machine, AI, cloud, and on-premises environments, with services including annual penetration testing and security risk assessments.

Identity Security Platform
Multi-factor Authentication
Identity Threat Detection And Response
+4 more
Conscia

Conscia

Network and Infrastructure Pen...
Denmark 161 employees

Cybersecurity company based in Denmark; provides penetration testing services as part of its security solutions, with confirmed headquarters in Copenhagen and Brøndby, Denmark.

Cybersecurity
Penetration Testing
Managed Security Services
+5 more
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Ziwit

Ziwit

Web Application Penetration Te...
Montpellier, France 30 employees

Cybersecurity company based in Montpellier, France, specializing in IT security services such as manual audits, on-site and remote penetration testing, and web application security solutions; 25 employees with -3.2% YoY growth; founded in 2011; actively markets penetration testing as a core service, including dedicated internal and external pentest offerings.

Penetration Testing
Security Audits
Training
+5 more
Claranet

Claranet

Web, Mobile, and Infrastructur...
France 3200 employees

Managed service provider offering network, hosting, and application services in France, UK, Germany, Netherlands, Portugal, Spain, Italy, and Brazil; headquartered in Paris, France. Provides cybersecurity solutions including CREST-approved penetration testing, with tailored attack simulations on networks, applications, and infrastructure.

Cloud
Cybersecurity
Connectivity
+4 more
Nomios Germany

Nomios Germany

Expert-Led Comprehensive Penet...
Dortmund, Germany 33 employees

Computer and network security company based in Dortmund, Germany; 25 employees with 13.8% YoY growth; specializes in penetration testing, vulnerability analysis, and security assessments, offering comprehensive cybersecurity solutions and an end-to-end SASE architecture portfolio.

Provides Penetration Testing
Vulnerability Assessments
Security Consulting
+3 more
Vertical Structure (Acquired by Instil)

Vertical Structure (Acquired by Instil)

Penetration Testing
Belfast, Ireland 7 employees

Cybersecurity company specializing in security and penetration testing; founded in 2006, based in Belfast, Ireland, with 3 employees. Offers human-based penetration testing, security consulting, and training, including CREST & CHECK, ISO27001, and Cyber Essentials. Focuses on a human-centric approach to cybersecurity with a small team and niche market presence.

Product Development
Cyber Security
Penetration Testing
+4 more
VMGroup

VMGroup

Vulnerability Assessment
Ireland 20 employees

IT Services and IT Consulting company based in Ireland; specializes in cybersecurity, digital forensics, electronic discovery, and IT audits; offers penetration testing services; 10 employees with 17.6% YoY growth; founded in 2014; uses advanced forensic technology.

Incident Response
Digital Forensics
Cyber Security
+3 more
Smarttech247

Smarttech247

Comprehensive Penetration Test...
United States 166 employees

Cybersecurity company specializing in managed detection and response, penetration testing, and threat management; headquartered in Cork, Ireland, with 110 employees, founded in 2003, and $1.7M in funding; offers VisionX MDR platform and serves healthcare, fintech, government sectors.

Managed Detection And Response
Penetration Testing
Vulnerability Assessments
+5 more
Ergo

Ergo

Network Security
United States 1106 employees

IT services and consulting company based in Dublin, Ireland; 420 employees, $214.4M revenue; offers IT solutions, managed services, cloud, security, and penetration testing; founded 1993; recognized as a leading provider in Ireland.

Managed Services
Productivity Solutions
Cloud And Infrastructure
+4 more
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Compleye.io

Compleye.io

Application Security Testing
Netherlands 7 employees

Cybersecurity company based in Amsterdam, Netherlands; provides data security compliance solutions and penetration testing services, including vulnerability assessments and security audits, to help small businesses meet enterprise standards.

Compleye.io Provides Data Security Compliance Solutions
Penetration Testing Services
Vulnerability Assessments
+5 more
Labyrinth Security Solutions

Labyrinth Security Solutions

Deception-Based Intrusion Dete...
Poland 11 employees

Cybersecurity company specializing in deception-based security and penetration testing; based in Poland with Polish legal registration and headquarters in Gdańsk; offers pentest services conducted by experienced engineers, as documented in case studies.

Provides Penetration Testing
Deception-based Intrusion Detection
Threat Analysis
+1 more
Ayesa

Ayesa

IT and OT Penetration Testing
Spain 11900 employees

Ayesa is a Spain-based global provider of technology and engineering services, with 5,209 employees and $692.8M annual revenue. They specialize in digitalization, sustainability, and energy transition, offering services in technology consulting, engineering, IT & cloud infrastructure, data intelligence & AI, civil engineering, project management, and cybersecurity, including penetration testing and ethical hacking.

Technology And Engineering Services Including Penetration Testing
Vulnerability Assessment
Cybersecurity Consulting
+5 more
Myempire Group

Myempire Group

Comprehensive Penetration Test...
Australia 9 employees

Cybersecurity firm headquartered in Melbourne, Australia, specializing in penetration testing services; provides vulnerability assessments for web, infrastructure, social engineering, and mobile testing to help organizations strengthen security controls.

Provides Penetration Testing
Vulnerability Assessments
Cyber Security Strategy Development
+2 more
Bell

Bell

Threat-Led Penetration Testing
Montreal, Canada 33871 employees

Bell is Canada's largest private telecommunications company, headquartered in Montreal, with 14,726 employees and $17.5B annual revenue. It provides broadband, wireless, Internet, TV, and media services; during evaluation, it was confirmed that Bell offers penetration testing and offensive security services, including red team testing and threat-led penetration testing (TLPT), highlighting its cybersecurity capabilities.

Broadband Wireless
Internet Services
Digital TV
+5 more
Omnicyber Security

Omnicyber Security

Penetration Testing
Canada 23 employees

Cybersecurity firm specializing in penetration testing, managed security, and compliance; based in Canada with a Canada office and local contact; emphasizes expertise in pentest services for diverse sectors.

Penetration Testing
Web Application Testing
Social Engineering
+5 more
You Gotta Hack That

You Gotta Hack That

Internet of Things Pentesting
Manchester, United Kingdom 3 employees

Cybersecurity consultancy specializing in penetration testing and IoT security; founded in 2017, based in Manchester, UK, with 2 employees and 200% YoY growth; provides services including web, mobile, internal, external, and wireless network penetration testing, with 1,571 monthly visits and ranked #10,597,252 globally.

Penetration Testing
Vulnerability Assessment
Cybersecurity Consulting Specializing In Internet Of Things (iot) And Embedded Systems.
Precursor Security

Precursor Security

CREST Certified Offensive Pene...
Leeds, United Kingdom 35 employees

UK-based cybersecurity company specializing in CREST-certified penetration testing and offensive security services; 20 employees with 29.6% YoY growth; founded in 2018; operates a 24/7 UK SOC; ranked #10,195,298 globally with 1,588 monthly website visits; offers tailored cybersecurity solutions, edge protect tools, and active threat simulation.

Penetration Testing
Security Operations Centre
Compliance
+1 more
Pentest People

Pentest People

Web Application Penetration Te...
Leeds, United Kingdom 113 employees

UK-based security consultancy specializing in Penetration Testing as a Service (PTaaS); 76 employees with 20.2% YoY growth; offers web application and network penetration testing, simulating attacks to identify vulnerabilities; active in cybersecurity market with recent focus on security testing and cyber risk analysis.

Penetration Testing
Vulnerability Scanning
Incident Response
+5 more
Foregenix

Foregenix

Web Application Pentesting
Swindon, United Kingdom 93 employees

UK-based IT services and cybersecurity company specializing in penetration testing, forensics, and compliance; 60 employees, $9.9M revenue, founded 2009, headquartered in Swindon, UK; offers network, web, mobile, wireless, and cloud penetration testing services, with recent activity including collaborations and spin-outs.

Penetration Testing
Cybersecurity Compliance
Digital Forensics And Incident Response
+2 more
Pentiq

Pentiq

Web Application Pentesting
London, United Kingdom 8 employees

Cybersecurity company specializing in penetration testing and vulnerability assessments; based in London, UK, with 7 employees, founded in 2016. Offers ethical hacking, social engineering, security training, and compliance services, with active social media presence and a focus on secure testing environments.

Penetration Testing
Cyber Security Consultancy
Training
+3 more
Cyber Alchemy Ltd.

Cyber Alchemy Ltd.

Red Teaming and Strategic Pene...
sheffield, United Kingdom 5 employees

Cyber Alchemy Ltd. is a UK-based cybersecurity company founded in 2023 with 3 employees; specializes in assessment, penetration testing, red team exercises, cloud assessment, and consultancy; also provides remediation training, ethical hacking, and cyber awareness training; focuses on improving clients' security posture; web presence includes 7,108 monthly visits and a global rank of 2,136,249; core service includes penetration testing.

Penetration Testing
Resilience Assessments
AI Security Services
+3 more
Pen Test Partners

Pen Test Partners

Web Application Pentesting
Buckingham, United Kingdom 110 employees

Cybersecurity company specializing in penetration testing services across networks, applications, and cloud; 67 employees, $6.1M revenue, founded 2010, based in Buckingham, UK; recognized for expertise in red teaming, testing, and security consulting, with 28,414 monthly website visits and global rank #1,041,359.

Penetration Testing
Red Teaming
Attack Surface Assessment
+5 more
Razorthorn Security

Razorthorn Security

CREST Accredited Penetration T...
Tunbridge Wells, United Kingdom 17 employees

Cybersecurity consultancy specializing in penetration testing, compliance, and consulting; 14 employees with -10.5% YoY growth; CREST-accredited pentesting across infrastructure, wireless, web, and mobile; Recognized by Gartner; Founded 2007; Tunbridge Wells, UK.

Cybersecurity Consultancy
Penetration Testing
Continuous Threat Exposure Management
+2 more
Bruce & Butler

Bruce & Butler

External and Internal Penetrat...
Sheffield, United Kingdom 15 employees

Cybersecurity company specializing in penetration testing, vulnerability assessments, and audits; 8 employees with 15.4% YoY growth; founded 2015; Sheffield, UK; provides CREST-accredited penetration testing services and data protection solutions for UK and international clients.

Data Protection
Cyber Security
Penetration Testing
+2 more
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CyberCrowd

CyberCrowd

Comprehensive Penetration Test...
Newbury, United Kingdom 34 employees

CyberCrowd is a UK-based IT services and cybersecurity company founded in 2016, with 18 employees and a 30.8% YoY growth. It specializes in penetration testing, assessment services, and cyber security consulting, serving clients with comprehensive vulnerability evaluations, web and mobile app testing, and certification readiness. The firm is a market leader in cyber security assessment, with a strong web presence and active recent activity in industry news.

Penetration Testing
Cybersecurity Assessment
CISO As A Service
+4 more
Secarma Ltd

Secarma Ltd

Web Application Pentesting
United Kingdom 23 employees

Cybersecurity company specializing in penetration testing services; based in Manchester, UK, with headquarters at 3 Archway, Birley Fields, Manchester, M15 5QJ; UK registered company number 04217114; explicitly offers penetration testing and cybersecurity assessments.

Penetration Testing
Cybersecurity Consultancy
Certification Services
+1 more
Cloudpush

Cloudpush

Network and System Penetration...
London, United Kingdom 4 employees

IT services and consulting firm based in London, UK; specializes in cybersecurity, penetration testing, managed IT, and cloud solutions; 2 employees, founded 2020; provides comprehensive cybersecurity services including penetration testing, security awareness, and network security.

Managed IT Services
Cloud Solutions
Cybersecurity Including Penetration Testing
+5 more
Cyberlab

Cyberlab

Comprehensive Penetration Test...
United Kingdom 71 employees

CyberLab is a UK-based cybersecurity firm specializing in penetration testing services; it explicitly offers penetration testing as a core service and is headquartered at Bridgford House, Heyes Lane, Alderley Edge, SK9 7JP.

Penetration Testing
Red Teaming
Vulnerability Assessment
+4 more
Toro Solutions

Toro Solutions

Red Team Penetration Testing
Other 21 employees

UK-based security and investigations company founded in 2015, with 13 employees and a focus on cyber, physical, and personnel security. Known for creating the UK's first Red Team penetration test, it provides active penetration testing, cyber attack simulation, and security consultancy services, serving government and business clients globally.

Managed Security And Consultancy Services Including Red Team Penetration Testing
Cyber Security
Physical Security
+2 more
3ct Security

3ct Security

Comprehensive Penetration Test...
United Kingdom 5 employees

UK-based cybersecurity firm specializing in penetration testing services; headquartered in Malvern, Worcestershire, with verified operations in the UK. Provides security assessments including vulnerability management and maturity evaluations.

Penetration Testing
Vulnerability Management
Cyber Maturity Reviews
+3 more
Equilibrium Security

Equilibrium Security

CREST-Certified Penetration Te...
United Kingdom 4 employees

UK-based private cybersecurity firm founded in 2012; specializes in penetration testing, cyber essentials, cyber awareness, and phishing simulations; 2 employees with -73.3% YoY growth; 3,019 monthly visits; competes with Marco Technologies, Convergence Networks, and Trustwave.

Penetration Testing
Cyber Essentials Certification
Cyber Awareness Training
+4 more
NormCyber

NormCyber

CREST-Certified Penetration Te...
United Kingdom 72 employees

UK-based cybersecurity firm specializing in CREST-certified penetration testing services; offers active vulnerability identification and remediation through authorized cyber-attack simulations; headquartered in Fareham, England, with a registered office at 8 Barnes Wallis Road.

Penetration Testing
Managed Detection And Response
Incident Response
+5 more
InfoSec Governance

InfoSec Governance

Web Application Pentesting
United Kingdom 2 employees

UK-based cybersecurity firm specializing in cybersecurity education, protection, and penetration testing; offers web application pentests and security consulting; registered in England and Wales (Company No. 12289766); headquartered in Darlington, UK.

Cyber Essentials And IASME Cyber Assurance Certifications
Penetration Testing
Virtual CISO
+3 more
Moore Clearcomm

Moore Clearcomm

Cybersecurity Penetration Test...
United Kingdom 501 employees

Cybersecurity firm based in London, UK, providing penetration testing and cyber resilience services; explicitly lists penetration testing as a core offering, emphasizing security testing and vulnerability assessment capabilities.

Penetration Testing
Cyber Resilience
Threat Assessments
+5 more
Bulletproof (Cyber Security)

Bulletproof (Cyber Security)

CREST & OSCP Penetration Testi...
Other 121 employees

UK-based private cybersecurity firm with 96 employees (+0.8% YoY growth), $3.0M annual revenue; specializes in penetration testing, data protection, and compliance services; registered at 20 Grosvenor Place, London, and based in Stevenage, Hertfordshire; ranks #1,574,985 globally and #154,108 in the UK; active in cybersecurity & compliance categories including ISO 27001, SOC 2, GDPR, and red team assessments.

Penetration Testing
Cyber Security Training
Compliance Consultancy
+4 more
Wolf Network Security Ltd

Wolf Network Security Ltd

Web Application and Infrastruc...
United Kingdom 2 employees

UK-based cybersecurity company specializing in penetration testing; offers testing of web applications and infrastructure using automated and manual exploitation tools; registered in England and Wales with company number 10635866, located at 47 Lloyd Street, Manchester.

Penetration Testing
Cloud Security Reviews
Network Installations
+3 more
Cybx Ltd

Cybx Ltd

Comprehensive Infrastructure a...
United Kingdom 2 employees

UK-based cybersecurity company specializing in digital resilience and penetration testing; offers ethical hacking and security assessment services; headquartered in Worcester, England.

Penetration Testing
Vulnerability Assessments
Phishing Campaigns
+3 more
Secure360.io

Secure360.io

Proactive Penetration Testing
United Kingdom 3 employees

UK-based cybersecurity provider in Inverurie, Scotland; offers enterprise-grade managed security services for SMBs with 24/7 protection and monthly penetration testing, emphasizing proactive threat mitigation.

Managed Cyber Security Services
Penetration Testing
Cyber Essentials Certification
+4 more
𝐍𝐞𝐭𝐟𝐨𝐫𝐭𝐞 𝐂𝐨𝐧𝐬𝐮𝐥𝐭𝐢𝐧𝐠 𝐋𝐭𝐝

𝐍𝐞𝐭𝐟𝐨𝐫𝐭𝐞 𝐂𝐨𝐧𝐬𝐮𝐥𝐭𝐢𝐧𝐠 𝐋𝐭𝐝

Advanced Penetration Testing
London, United Kingdom 2 employees

Cybersecurity solutions company specializing in advanced penetration testing services; based in London, UK, founded in 2023, with 2 employees and 100% YoY growth. Focuses on safeguarding digital assets and fortifying defenses against cyber threats.

Penetration Testing
Cybersecurity Audits
ISO 9001/27001/42001 Implementation
+3 more
Talion Cyber Security

Talion Cyber Security

Consultant-Led Penetration Tes...
camberley, United Kingdom 94 employees

Cybersecurity company specializing in hybrid cybersecurity services and penetration testing; 94 employees with 3.3% YoY growth; founded in 2020; based in Camberley, UK. Known for providing defense-grade cybersecurity solutions and explicit penetration testing services, with a focus on identifying vulnerabilities through simulated attacks.

Managed Detection & Response (mdr)
Soc-as-a-service
SIEM Optimization & XDR Alignment
+5 more
EBC Group

EBC Group

CREST-Approved Penetration Tes...
United Kingdom 119 employees

UK-based private IT services and consulting firm founded in 1989; 52 employees, $10M revenue; specializes in managed IT, cloud, cybersecurity, and connectivity solutions; partners with UK businesses to enhance security and operational efficiency; offers CREST-approved penetration testing services in collaboration with Assure Technical.

Managed IT Services
Cloud Solutions
Cybersecurity (including Crest-approved Penetration Testing)
+3 more
PrimoConnect: Compliance Support - Cyber Security - Pen Testing - Cloud - Networks

PrimoConnect: Compliance Support - Cyber Security - Pen Testing - Cloud - Networks

Web Application Pentesting
Other 2 employees

UK-based private IT security company founded in 2017 with 2 employees; specializes in penetration testing, cloud infrastructure, and compliance support. Offers offensive security testing, cyber awareness training, and secure cloud/network design, with explicit focus on penetration testing services and cyber security consultancy.

Penetration Testing
Cyber Security Consulting
Compliance Support
+1 more
ThreatSpike

ThreatSpike

Unlimited Penetration Testing ...
United Kingdom 68 employees

Cybersecurity company specializing in managed security services and penetration testing; offers unlimited penetration testing and system-specific assessments, with 47 employees, $10M revenue, founded in 2011, based in the UK, with $26.3M in funding.

Unlimited Penetration Testing
Fully Managed IT Services
Incident Detection And Response
+5 more
UK Cyber Security Group Ltd

UK Cyber Security Group Ltd

Network and Web Application Pe...
Swadlincote, United Kingdom 2 employees

UK Cyber Security Group Ltd is a UK-based private cybersecurity firm specializing in IT network security and penetration testing services; founded in 2019, with 1 employee, it emphasizes data protection, security awareness, and compliance, serving clients across the UK.

Cyber Essentials And IASME Cyber Assurance Certification
Penetration Testing
Network Scanning And Testing
+3 more
FoxTech Cyber

FoxTech Cyber

Network Penetration Testing
United Kingdom 14 employees

Cybersecurity company based in the United Kingdom; specializes in managed cybersecurity services including vulnerability management, security monitoring, and penetration testing for SMEs. Offers a Managed SOC platform with integrated vulnerability management, security monitoring, and pen-testing; 8 employees, founded 2020, +16.7% YoY growth.

Penetration Testing
Vulnerability Management
Security Monitoring
+3 more
Closed Door Security

Closed Door Security

Threat Led Penetration Testing
Stornoway, United Kingdom 12 employees

UK-based private cybersecurity company specializing in penetration testing, security assessments, engineering, and certification; CREST-accredited, partner of SBRC & Police Scotland, with 4 employees and 33.3% YoY growth; actively promotes penetration testing services through dedicated pages and certifications.

Penetration Testing
Threat Led Penetration Testing
Red Teaming
+3 more
Cognisys

Cognisys

Advanced Infrastructure, Appli...
Leeds, United Kingdom 86 employees

UK-based IT services and cybersecurity company specializing in penetration testing, security assessments, and compliance; 63 employees with 95.5% YoY growth; founded in 2017; CREST-accredited penetration testing services; headquartered in Leeds, UK.

Penetration Testing
Vulnerability Management
Security Compliance Acceleration
+2 more
Total Group International

Total Group International

Network and Cloud Penetration ...
United Kingdom 19 employees

UK-based private company in computer networking and cybersecurity; 14 employees, $3.6M revenue, founded 2000; offers IT security, support, cloud, and penetration testing services (TotalPenTest) with active case studies and dedicated solutions.

IT Support
Cloud Services
Cybersecurity
+3 more
Jumpsec

Jumpsec

Threat-Led Penetration Testing
United Kingdom 25 employees

UK cybersecurity firm Jumpsec Limited offers bespoke consultancy and CREST-certified penetration testing services, including application and threat-led pentests; based in London and Surrey, emphasizing technical excellence and expert-driven approaches.

Penetration Testing
Adversary Simulation
Purple Teaming
+5 more
Brigantia by Elovade

Brigantia by Elovade

Penetration Testing as a Servi...
thirsk, United Kingdom 53 employees

UK-based IT services and cybersecurity consulting company with 30 employees, founded in 1996; specializes in cybersecurity solutions, including penetration testing via Rootshell, and supports channel partners with recurring revenue growth; part of the Elovade Group, with a focus on security assessments, red team engagements, and managed services.

Cybersecurity Software Distribution
Penetration Testing
Vulnerability Management
+1 more
Prism Infosec

Prism Infosec

Penetration Testing and Red Te...
United Kingdom 28 employees

Cybersecurity firm based in Cheltenham, UK, specializing in penetration testing, red teaming, and GRC services; provides assessments, testing, and response solutions to enhance security posture.

Penetration Testing
Red Teaming
GRC
+5 more
Dionach

Dionach

Penetration Testing and Securi...
United Kingdom 52 employees

Cybersecurity firm based in Oxford, UK, specializing in penetration testing and security assessments; CREST-accredited with a comprehensive suite of security services. Part of Nomios; founded in the UK.

Penetration Testing
Security Assessments
Compliance Consulting
+3 more
Cyber Vigilance

Cyber Vigilance

Infrastructure and Application...
United Kingdom 19 employees

Cyber Vigilance is a UK-based cybersecurity firm headquartered in Guildford, UK; specializes in penetration testing services that identify vulnerabilities in infrastructure and applications, including automated pentesting capabilities through Horizon3.ai partnership.

Managed Threat Detection
Penetration Testing
Product Implementation And Optimisation
+3 more
Exploitr

Exploitr

Web Application Pentesting
United Kingdom 1 employees

UK-based cybersecurity firm specializing in penetration testing services; officially registered in Newport, Wales (Companies House 15939324); holds CREST Pathway Accreditation, confirming recognized credentials in pentest services.

Penetration Testing
Vulnerability Assessment
Attack Surface Management
Kocho

Kocho

Identity and Security Penetrat...
United Kingdom 300 employees

UK-based cybersecurity firm specializing in Microsoft identity, security, and cloud solutions; offers penetration testing services and security consulting; registered in England and Wales (company number 04308824), with a London office.

Penetration Testing
Identity Management
Security Consulting
+3 more
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Closed Door Security

Closed Door Security

Threat Led Penetration Testing
United Kingdom 15 employees

UK-based cybersecurity firm specializing in penetration testing and security assessments; registered in the UK (SC585645), headquartered in Stornoway, UK; offers professional pentest services as highlighted on their website and supported by external sources.

Penetration Testing
Threat Led Penetration Testing
Red Teaming
+3 more
CodeShield (Cyber Security)

CodeShield (Cyber Security)

Web Application Pentesting
Other 1 employees

UK-based cybersecurity firm specializing in penetration testing for web apps, networks, and cloud environments; 1 employee; focuses on threat detection and compliance (ISO, PCI, SOC2, Dstp).

Penetration Testing Including Web Application
Network
Cloud
+3 more
Attack Vector Ltd

Attack Vector Ltd

Infrastructure and Web Applica...
United Kingdom

UK-based cybersecurity firm specializing in penetration testing; offers infrastructure, web app, cloud, social engineering, and mobile testing; registered in London with Company No. 14996130.

Penetration Testing Services Including Infrastructure
Web Application
Cloud Security
+2 more
NeedSec Limited

NeedSec Limited

Web Application Pentesting
United Kingdom 1 employees

UK-based cybersecurity company specializing in penetration testing; headquartered in London, with a registered office at 86-90 Paul Street, London, England. Provides security testing services to identify system vulnerabilities.

Penetration Testing (web
Saas
Mobile
+4 more
Techforce

Techforce

Infrastructure and Application...
United Kingdom 11 employees

UK-based cybersecurity firm headquartered in Aberdeen and Edinburgh; offers penetration testing, cyber maturity assessments, Cyber Essentials certification, virtual CISO, vulnerability management, and managed security services; specializes in protecting businesses from cyber threats with expert consulting and testing solutions.

Penetration Testing
Cyber Maturity Assessments
Cyber Essentials Certification
+2 more
4N6

4N6

Comprehensive Penetration Test...
London, United Kingdom 15 employees

IT services and consulting company specializing in cybersecurity, troubleshooting, diagnostics, post-incident reviews, and digital forensics; offers full penetration testing services including active exploitation, vulnerability analysis, and remediation; based in London, UK with 1 employee, 1,122 monthly website visits, and ranked #11,322,919 globally.

Cybersecurity
Penetration Testing
Advanced Diagnostics And Troubleshooting
+2 more
BSI Cyber Consulting

BSI Cyber Consulting

CREST Penetration Testing and ...
cambridge, United Kingdom 59 employees

Cybersecurity company specializing in penetration testing, red team assessments, and information security services; supports CREST-certified pentest offerings and detailed testing procedures; 2 employees, $9.44M revenue, headquartered in Cambridge, UK.

Penetration Testing
Cyber Security Consultancy
Compliance Management
+2 more
Bema Cyber Tech Ltd

Bema Cyber Tech Ltd

Infrastructure Penetration Tes...
United Kingdom 2 employees

UK-based IT service provider specializing in cybersecurity; offers penetration testing services; registered in London with a UK office at 124 City Road; provides solutions for public and private sectors to achieve Cyber Essentials certifications.

Penetration Testing
Vulnerability Assessment
Cyber Security Training
+5 more
Sodium Cyber Ltd

Sodium Cyber Ltd

Web Application Pentesting
United Kingdom 3 employees

Cybersecurity consultancy specializing in penetration testing and security assessments; based in Worcestershire, UK with 2 employees, founded in 2020. Offers web application and infrastructure pentests, cloud security, secure code reviews, and maritime systems security; 208 monthly website visits.

Penetration Testing
Security Assessments
Risk Management
+5 more
Syn-Star IT Support

Syn-Star IT Support

Network Penetration Testing
United Kingdom 17 employees

UK-based IT services and consulting company founded in 2002; 13 employees, $2.4M revenue; specializes in business IT support, cybersecurity, and penetration testing with dedicated pentest services; serves SMEs with a focus on reliable, end-to-end IT solutions and security.

IT Support
Microsoft 365 Support
Cyber Security Including Penetration Testing
+4 more
Securious - Data and Cyber Security

Securious - Data and Cyber Security

PCI DSS Penetration Testing
Exeter, United Kingdom 13 employees

Cybersecurity compliance and pentesting company based in Exeter, UK; 11 employees with 18.2% YoY growth; founded in 2007; provides PCI DSS, ISO 27001, Cyber Essentials, and penetration testing services to UK and international clients.

Penetration Testing
PCI DSS Compliance
ISO 27001 Certification
+2 more
Xpertex Ltd

Xpertex Ltd

Military-Grade Network Penetra...
Welwyn Garden City, United Kingdom 14 employees

UK-based IT services and consulting firm specializing in cybersecurity, including penetration testing and breach & attack simulation; 9 employees with -6.7% YoY growth; founded 2006; headquartered in Welwyn Garden City, England; active in security assessments, vulnerability analysis, and machine parts manufacturing.

Cyber Security Consulting
Penetration Testing
Breach And Attack Simulation
+3 more
Arcanum Information Security

Arcanum Information Security

Web Application Pentesting
Llanegwad Ed, United Kingdom 4 employees

Cybersecurity company specializing in penetration testing and security training; 2 employees with 100% YoY growth; based in Llanegwad Ed, UK; offers external and web application pentest services, training, and media; 15,303 monthly visits, global rank #1,648,340.

Penetration Testing
Cybersecurity Training
Consulting
+1 more
Cyberfort

Cyberfort

Application, Web, and Network ...
United Kingdom 156 employees

UK-based cybersecurity firm specializing in penetration testing services such as code reviews, cloud security testing, AI/LLM testing, and application/web/network/internals testing; performs active attack simulations to identify vulnerabilities.

Comprehensive Cybersecurity Services Including Consultancy
Penetration Testing
Cyber Resilience Audits
+3 more
Methods

Methods

Internal Infrastructure Pentes...
London, United Kingdom 484 employees

UK-based private IT & Services company specializing in digital transformation and cybersecurity; 313 employees, $148.4M revenue, founded 1990, headquartered in London, UK; provides penetration testing services with active engagements and case studies demonstrating expertise.

Penetration Testing
Vulnerability Assessment
Cyber Resilience
+3 more
Delta Cyber Security Ltd

Delta Cyber Security Ltd

Expert-Led Penetration Testing
United Kingdom 3 employees

UK-based cybersecurity company specializing in penetration testing, cyber essentials certification, and cloud security reviews; headquartered in Chichester, West Sussex, with a focus on simplified, accessible security solutions grounded in experience.

Penetration Testing
Cyber Essentials Certification
Cloud Security Reviews
+1 more
Acutest

Acutest

Application Penetration Testin...
United Kingdom 30 employees

UK-based software testing and quality assurance consultancy; offers penetration testing services; registered in York, England, with additional UK addresses; specializes in testing software, business processes, and IT to improve digital transformation projects.

Software Testing
Quality Assurance
Penetration Testing
+5 more
Cybata

Cybata

System and Network Penetration...
Nelson, United Kingdom 3 employees

Cybata (BD Research Ltd) is a UK-based information services company specializing in cybersecurity, GDPR, and data protection consulting and training for charities and health tech organizations; with 2 employees, 200% YoY growth, and explicitly offers penetration testing services.

GDPR Compliance
Data Protection Services
Cyber Security Assessments
+5 more
Predatech

Predatech

Advanced Penetration Testing
Manchester, United Kingdom 9 employees

UK-based IT services and cybersecurity consultancy specializing in penetration testing, vulnerability management, and security certifications; 8 employees with 28.6% YoY growth since 2020; offers CREST-accredited pentest services and helps organizations enhance cyber defenses.

Penetration Testing
Managed Vulnerability Scanning
Cloud And Server Security Reviews
+2 more
Trustmarque

Trustmarque

Infrastructure Penetration Tes...
United Kingdom 425 employees

UK-based IT services and consulting firm founded in 1987; employs 312 staff with $106.5M annual revenue; specializes in IT solutions, cloud, managed, and professional services for healthcare and government sectors. Offers CREST-certified penetration testing services with CHECK accreditation, emphasizing cybersecurity expertise; operates in a competitive landscape including Roke and ECSC Group.

Penetration Testing
Cybersecurity
AI And Data Analytics
+4 more
CYSIAM

CYSIAM

Threat-Led Penetration Testing
milton keynes, United Kingdom 42 employees

CYSIAM is a UK-based private cybersecurity firm specializing in threat-led 24/7 Managed Detection and Response (MDR) services; it provides CREST-accredited penetration testing and security consulting, with 29 employees and 13.5% annual growth. The company is trusted by UK public sector organizations and was founded in 2018 in Milton Keynes.

Managed Detection And Response
Cyber Threat Intelligence
Incident Response
+3 more
Periculo

Periculo

Medical Device Penetration Tes...
United Kingdom 13 employees

UK-based IT services and cybersecurity consultancy with 11 employees, founded in 2015; specializes in cybersecurity for digital health including Penetration Testing, Cyber Essentials, ISO 27001, and Medical Device Security; 18.2% monthly growth, 1,720 monthly visits, ranked #8,134,692 globally.

Penetration Testing
Risk Assessments
Incident Response
+5 more
Evolve North Ltd

Evolve North Ltd

IT Environment Penetration Tes...
United Kingdom 11 employees

UK-based consultancy specializing in Governance, Risk, and Compliance, and IT Security and Assurance; provides penetration testing services to identify and remediate vulnerabilities in IT environments; headquartered in Durham, England, with registered office in North Yorkshire.

Governance
Risk And Compliance Consulting
IT Security And Assurance
+3 more
Cyber HQ

Cyber HQ

Network Penetration Testing
United Kingdom 3 employees

Cyber HQ is a cybersecurity consulting company based in the United Kingdom; they provide penetration testing, threat and vulnerability management, security operations, and business resilience services. The firm is registered at 160 City Road, London, with active status and has been operational since at least 2023.

Penetration Testing
Threat And Vulnerability Management
Security Operations
+5 more
Citation Cyber

Citation Cyber

Web Application Pentesting
lancaster, United Kingdom 31 employees

Citation Cyber is a UK-based IT services and cybersecurity consulting company with 23 employees and GBP 1.0M annual revenue; founded in 2012 and headquartered in Lancaster, UK. The firm specializes in certified penetration testing, including web, cloud, mobile, and physical assessments, to safeguard systems and data. It competes with Novicom, QSEAP, and Assured, and actively engages in cybersecurity news and awareness campaigns.

Penetration Testing
Cyber Awareness Training
Phishing Simulation
+4 more
Secure Nexus

Secure Nexus

Penetration Testing
Stirling, United Kingdom 1 employees

Secure Nexus is a private UK-based technology and cybersecurity firm founded in 2023, with 2 employees. Specializing in advanced network design, penetration testing, and security solutions, it aims to build a secure digital nexus for clients. Headquartered in Stirling, Scotland, the company focuses on safeguarding digital assets and optimizing connectivity.

Penetration Testing
Cyber Essentials
ISO27001:2022
+5 more
Ethernal

Ethernal

Network Penetration Testing
Highbridge, United Kingdom 2 employees

Cybersecurity company specializing in network security, penetration testing, and cyber resilience; founded 2015, 2 employees, based in Highbridge, UK, with 100% monthly growth and services including security health checks, endpoint protection, and compliance.

Penetration Testing
Network Security Health Checks
Security Audits
+4 more
URM

URM

Network and Application Penetr...
Reading, United Kingdom 135 employees

URM (URM Consulting Services Ltd) is a UK-based business consulting firm specializing in information security and risk management; 42 employees with 36.4% YoY growth, $1M-$5M revenue, founded in 2005, headquartered in Reading, UK. The company provides penetration testing, vulnerability assessment, ISO 27001, GDPR, PCI DSS, and business continuity services, with a global rank of #1,589,893 and 14,482 monthly visits.

Cyber And Information Security Consultancy
Penetration Testing
GDPR And PCI DSS Compliance
+4 more
Astrix

Astrix

Comprehensive Cybersecurity Pe...
United Kingdom 10 employees

Astrix is a UK-based private cybersecurity firm founded in 1997, with 6 employees and a -16.7% YoY growth. It specializes in computer and network security, explicitly providing penetration testing services as part of its cybersecurity assessments, utilizing questionnaires, automated tools, interviews, and pentests. The company has a modest web presence with 1,208 monthly visits and a global rank of approximately 9.94 million.

Penetration Testing
Vulnerability Assessment
Cybersecurity Consulting
CyberWhite Ltd

CyberWhite Ltd

Network, Cloud, and Applicatio...
United Kingdom 9 employees

CyberWhite Ltd is a UK-based cybersecurity consultancy specializing in penetration testing, risk mitigation, and security assurance; with 8 employees, founded in 2018, and a client-focused approach that emphasizes tailored security solutions, training, and compliance in cybersecurity standards.

Penetration Testing
Risk Mitigation
Information Security Advisory
+2 more
RightCue

RightCue

Network Penetration Testing
Basingstoke, United Kingdom 19 employees

Cybersecurity consulting firm specializing in compliance and penetration testing; 14 employees (+26.7% YoY growth); CREST-certified pentest services; Founded 2009; Basingstoke, UK.

Penetration Testing
Cyber Security Compliance Consulting
Risk Assessments
+4 more
Cybarik

Cybarik

Vulnerability Assessment and P...
United Kingdom 91 employees

Cybersecurity consulting firm based in the UK; provides penetration testing, vulnerability assessment, and tailored cybersecurity training for individuals and organizations. Located in Harlow, Essex, with a focus on improving clients' cybersecurity skills and knowledge.

Penetration Testing
Vulnerability Assessment
Cybersecurity Consulting
+5 more
Digital Pathways Ltd

Digital Pathways Ltd

Penetration Testing and Ethica...
United Kingdom 3 employees

UK-based private IT security firm founded in 1996; specializes in penetration testing, ethical hacking, data encryption, and compliance; 2 employees, over 20 years of experience in cyber security; offers managed security services, data leakage detection, and GDPR consultancy.

Penetration Testing
Data Security
Encryption
+4 more
Forensic Control

Forensic Control

Penetration Testing
United Kingdom 2 employees

Cybersecurity consultancy based in London, UK; specializes in penetration testing, security assessments, and vulnerability scans; headquartered at 15 Belgrave Square, London, SW1X 8PS; offers tailored cybersecurity solutions to assess, prevent, and respond to cyber threats.

Penetration Testing
Vulnerability Scanning
Security Assessments
+3 more
Cybergen Security

Cybergen Security

CREST-Accredited Penetration T...
United Kingdom 1 employees

UK-based cybersecurity company specializing in CREST-accredited penetration testing services; headquartered in Witney, Oxfordshire, with a focus on security testing and incident response.

Penetration Testing
Incident Response
Threat Intelligence
+5 more
cydentity.co.uk

cydentity.co.uk

Full-Spectrum Red Team Testing
United Kingdom 2 employees

UK-based cybersecurity firm specializing in proactive, business-driven protection; offers penetration testing and attack simulation services, including ransomware attack simulations; 2 employees; Founded 2025; Wales, UK.

Cybersecurity Consulting
Risk Assessments
Compliance Readiness
+4 more
Koris365

Koris365

Customized Automated and Manua...
United Kingdom 60 employees

UK-based IT and security managed service provider; offers penetration testing with customized automated and manual assessments, and cyber security evaluations; registered in England (Company No. 07709017), headquartered in Hemel Hempstead.

Penetration Testing
Cyber Security Evaluations
IT Managed Services
+5 more
Omnicyber Security

Omnicyber Security

Web Application Pentesting
United Kingdom 23 employees

Cybersecurity firm based in the UK and Canada; specializes in penetration testing, managed security, and compliance services; explicitly states penetration testing as a core service and UK presence.

Penetration Testing
Managed Security
Compliance Services
+2 more
Data Connect Group

Data Connect Group

CREST-Accredited Infrastructur...
United Kingdom 7 employees

UK-based cybersecurity firm specializing in penetration testing; offers CREST-accredited services with a dedicated testing page and detailed FAQs; headquartered in Harrogate, West Yorkshire, with registered office in West Yorkshire.

Penetration Testing
Cyber Risk Management
Managed Detection And Response
+4 more
Rmg Cyber

Rmg Cyber

Web Application Pentesting
United Kingdom 3 employees

Cybersecurity firm based in Lincolnshire, UK; offers penetration testing, auditing, cybersecurity training, risk management, cloud security, and software development services; specializes in web application pentesting with a focus on identifying vulnerabilities and providing remediation.

Penetration Testing
Auditing And Assurance
Cybersecurity Training
+5 more