Find a pentest company with GPEN
70 companies have this certification
The GPEN Certification: Origin
The GPEN (GIAC Penetration Tester) certification was created by the Global Information Assurance Certification (GIAC), an organization founded in 1999 as part of the SANS (SysAdmin, Audit, Network, and Security) Institute. GIAC developed the GPEN to validate the technical skills of cybersecurity professionals who perform penetration testing and ethical hacking. The certification was designed to ensure that practitioners possess both the theoretical knowledge and hands-on abilities needed to conduct proper security assessments and identify vulnerabilities in networks and systems.
Industry Value and Importance
The GPEN certification is highly valued in the cybersecurity industry because it demonstrates practical, real-world penetration testing skills rather than just theoretical knowledge. Employers recognize GPEN-certified professionals as capable of conducting thorough security assessments, understanding attack vectors, and properly documenting findings. The certification meets DoD 8570/8140 requirements for certain Information Assurance positions, making it particularly valuable for government contractors and federal positions. Its focus on hands-on methodology and current attack techniques makes GPEN holders sought after for offensive security roles, penetration testing teams, and security consulting positions.
6 Paths Cyber Security
Cybersecurity company specializing in penetration testing; provides expert, U.S.-based penetration testing services with a focus on vulnerability identification, exploitation, and mitigation; founded 2020, 2 employees, headquartered in Los Angeles, California.
Breadcrumb Cybersecurity
Cybersecurity company specializing in incident response, digital forensics, compliance, and managed security; 9 employees with 100% YoY growth; headquartered in Fresno, California, USA; offers penetration testing, SOC/MDR, CMMC assessments, and expert witness services.
Zymr, Inc. | Software Product Engineering Services
Zymr, Inc. is a California-based private IT services and consulting company specializing in software product engineering, digital transformation, platform engineering, and cybersecurity including penetration testing; 143 employees, $16.7M annual revenue, founded in 2012, with active penetration testing services as evidenced by dedicated cybersecurity offerings.
Alacrinet
Cybersecurity consulting firm based in Palo Alto, California; specializes in penetration testing, security assessments, and compliance support; combines customer-focused consulting with deep technical expertise to secure networks, data, and environments.
Secure Ideas, LLC
Cybersecurity consulting and penetration testing firm with 25 employees, $2.8M revenue, founded in 2010 in Jacksonville, Florida; specializes in security assessments, penetration testing, and security training; launched PETaaS service; recognized industry leader in security evaluations.
RedSeer Security
Cybersecurity company specializing in offensive security, red teaming, penetration testing, and social engineering; 13 employees with 7.1% YoY growth; founded 2018; based in Doral, Florida, USA; provides bespoke cybersecurity solutions with over two decades of expertise, focusing on safeguarding digital assets against sophisticated threats.
TruSec Consulting
Cybersecurity consulting firm specializing in operational security testing, vulnerability assessments, and penetration testing; 4 employees; Founded 2012; Miramar, Florida, USA.
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Inceptus Cybersecurity
Cybersecurity firm based in Cape Coral, Florida; specializes in penetration testing including internal, external, application, and wireless tests; demonstrates active security assessment capabilities with detailed service offerings.
CyberGlobal
CyberGlobal LLC. is a private cybersecurity firm based in Tampa, Florida, founded in 2017, with 48 employees and 300% YoY growth. The company provides expert cybersecurity services including penetration testing, cloud security, network security, and risk management, with active penetration testing capabilities for external and internal networks, supported by their website and service categories.
NDAY Security
Cybersecurity company specializing in offensive security and threat exposure management; founded 2023, 2 employees with 25% YoY growth, headquartered in Miami, Florida, USA; provides a comprehensive CTEM platform for cybersecurity defenses and attack surface management.
PurpleBox Security
Cybersecurity company based in Atlanta, Georgia, specializing in penetration testing, cybersecurity, and compliance solutions; explicitly offers pen testing services as a core part of their offerings.
accentedge
IT Services and IT Consulting company specializing in telecommunications, cybersecurity, digital transformation, and cloud computing; 3 employees with 50% monthly and yearly growth; founded 2018; headquartered in Chicago, Illinois, USA; provides active penetration testing services with certified pentesters.
Antietam Technologies, Inc.
IT Services and IT Consulting company specializing in cybersecurity; offers penetration testing, risk analysis, incident detection, and breach response; 6 employees with 22.2% YoY growth; founded 2004; headquartered in Frederick, Maryland, United States; Service Disabled Veteran Owned.
VDA Labs, LLC
VDA Labs, LLC is a cybersecurity solutions and services provider specializing in penetration testing, with 30 employees, $6M annual revenue, founded in 2007 in Grand Rapids, Michigan. The company focuses on safeguarding organizations through security assessments, compliance, secure coding, IoT security, and fuzzing, and is positioned at global rank #6,432,848 with a niche market presence.
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High Bit Security, LLC
Cybersecurity company specializing in penetration testing; 3 employees, $10M revenue, founded 2009 in Port Sanilac, Michigan; known for transparency, top ratings, and exclusive focus on pentest services.
CT Cubed Inc
Cybersecurity services and consulting company specializing in penetration testing, tactics, and training; 5 employees with 85.7% YoY growth; founded 2016; headquartered in Henderson, Nevada; provides advanced threat mitigation and tailored cybersecurity solutions.
Secure Network Technologies, Inc.
Cybersecurity company specializing in penetration testing, network security assessments, incident response, and forensic services; 7 employees, $21.7M revenue, founded 1997 in Syracuse, NY; offers advanced security engineering including social engineering, physical security, and open source intelligence; operates in cybersecurity, penetration testing, incident response, and physical security testing categories.
Vigilant Cyber Systems
Cybersecurity company specializing in offensive and defensive cyber resource assessment, including penetration testing and vulnerability assessments for industrial control systems; 11 employees, founded 2010, based in Mount Airy, North Carolina; $75K funding; focuses on OT, IoT, SCADA, and cybersecurity testing services.
Stratascale
Cybersecurity and managed cybersecurity services provider based in Charlotte, NC; offers penetration testing, red team exercises, and offensive security testing as core services; HQ in Charlotte, NC, United States.
SubRosa
IT services and cybersecurity consulting firm based in Beachwood, Ohio; 9 employees with -14.3% YoY growth; offers penetration testing, risk management, and compliance services; founded 2017; 4,953 monthly website visits; global rank #3,620,813.
Black Lantern Security
Cybersecurity company specializing in penetration testing, red teaming, vulnerability assessments, and social engineering; 17 employees with 3.8% YoY growth; founded 2013; based in Charleston, South Carolina, USA; focuses on healthcare, hospitality, and finance sectors.
PEN Consultants, LLC
Cybersecurity company specializing in penetration testing, ethical hacking, and red teaming; 5 employees, founded 2013, headquartered in San Antonio, Texas • Provides comprehensive vulnerability assessments and security testing services to identify threats before exploitation.
Defensive Network Security Consultants LLC DNSC
Defensive Network Security Consultants LLC DNSC is a cybersecurity consulting company based in El Paso, TX, specializing in penetration testing, vulnerability assessments, and network defense. Founded in 2011, it has 3 employees with 200% YoY growth, and provides services including compliance testing (NIST 800-171r2, CMMC), purple teaming, and remote web penetration testing. The company maintains an active online presence with 105 monthly visits and recent activity in cybersecurity conferences and regulatory updates.
Red Siege
Computer and Network Security company specializing in penetration testing and security consulting; 8 employees with 7.1% YoY growth, founded in 2017, headquartered in Longview, Texas, United States. Known for in-depth vulnerability analysis and risk assessment, Red Siege is a trusted industry leader in offensive security services.
3L337 Consulting, LLC
Cybersecurity company specializing in penetration testing, red team exercises, and security consulting; based in Denison, Texas, with 2 employees, founded in 2022, focusing on offensive security and network vulnerability assessments.
Webcheck Security
Cybersecurity company specializing in penetration testing, vulnerability scanning, and cyber advisory services; 10 employees; founded 2018; headquartered in Salt Lake City, Utah, United States; offers web app testing, wireless endpoint testing, code review, secure code training, and managed SOC services.
Yemane Services LLC
Cybersecurity consulting firm based in Fairfax, Virginia, specializing in penetration testing, digital forensics, incident response, vulnerability assessments, breach assessments, and security engineering; known for experienced cybersecurity consultants and broad security expertise.
Valorous
Valorous is a private cybersecurity firm based in Sheridan, Wyoming, specializing in penetration testing, cryptographic engineering, hardware chip design, and AI/ML solutions. The company has 2 employees with a 44.4% YoY workforce decline, and competes with firms like Rhea Group and Nyla Technology Solutions. It offers top-tier pentest services for on-premise, cloud, and PCI environments, emphasizing advanced security consulting and enterprise cybersecurity.
B-sec Better Secure Gmbh & Co Kg
Cybersecurity service provider based in Austria; specializes in penetration testing, security assessments, and IoT security analysis with a comprehensive suite of pentest services including network, web, IoT, social engineering, physical, red team, and vulnerability assessments • Located at Hauptplatz 16, 7374 Weingraben, Austria; GmbH & Co KG
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Cresco Cybersecurity
Cybersecurity company specializing in penetration testing, ethical hacking, and security assessments; 13 employees with 26.7% YoY growth; founded 2020; based in Brussels, Belgium; offers red team, blue team, phishing, awareness training, and security transformation services.
Egov Select
Belgium-based IT services and consulting company with 248 employees and 14.6% YoY growth; specializes in social media, IT recruitment, and government IT solutions; explicitly provides penetration testing (pentest) services, including post-test support, as evidenced by multiple job postings and service descriptions.
Pentesty s.r.o.
Cybersecurity company specializing in penetration testing, vulnerability assessments, phishing campaigns, and web application testing; founded in 2022 with 3 employees, based in Czechia, offering external penetration tests and security services.
ADO Security
Cybersecurity company specializing in awareness, defensive, and offensive security services; 14 employees; founded 2025; headquartered in Copenhagen, Denmark; offers penetration testing, vulnerability scanning, and cybersecurity awareness training.
DBM Partners
Cybersecurity consulting firm based in Paris, France, specializing in penetration testing and red team exercises; 22 employees, founded in 2012, with a focus on cybersecurity audits, compliance, and cyber projects.
KALWEIT ITS GmbH
Cybersecurity company specializing in high-level penetration testing and IT security consulting; 5 employees with 33.3% YoY growth; founded 2017; based in Hamburg, Germany; offers penetration testing, vulnerability management, and cyber resilience services.
SEKurity GmbH
German cybersecurity firm based in Düsseldorf; offers penetration testing, web application assessments, and security awareness campaigns; registered HRB 103918 with German VAT ID DE368583445.
Silent Signal
Computer and network security company specializing in penetration testing and ICT security services; 13 employees; founded 2009; Budapest, Hungary; offers detailed pentest services including IBM i security testing, emphasizing thoroughness and research-driven quality.
Silent Signal
Hungarian cybersecurity company headquartered in Budapest; specializes in penetration testing, security assessments, code analysis, vulnerability testing, and social engineering; emphasizes world-class R&D and comprehensive ICT security services.
Secure Network
Cybersecurity company specializing in application security, cloud & infrastructure security, and penetration testing; 27 employees, $4.4M revenue, founded 2004 in Milan, Italy; offers services including pentest, social engineering, and cybersecurity governance, with certifications for embedded device analysis.
Cyber Ack
Cyber Ack is a private Italian cybersecurity firm specializing in computer and network security with a focus on penetration testing services; 4 employees with 166.7% YoY growth, headquartered in Italy, offering customized on-site and remote cybersecurity solutions.
Cresco Cybersecurity
Cybersecurity company specializing in penetration testing and security assessments; 13 employees with 26.7% YoY growth; based in Luxembourg; founded in 2020; offers services including red team, blue team, phishing, and security transformation plans, with an ethical hacking background.
ThreatLabs
ThreatLabs is a private IT services and consulting firm specializing in security assessments and penetration testing; with 3 employees (+50% YoY growth), founded in 2023, headquartered in Utrecht, Netherlands. The company provides vulnerability assessments, security testing, and consultancy services, with dedicated offerings for penetration testing and security evaluations.
ThreatLabs
Dutch cybersecurity firm ThreatLabs, headquartered in Utrecht, Netherlands, specializes in security assessments including penetration testing and vulnerability evaluations; they offer dedicated pentest services for applications, PCI DSS, and perform active testing phases like exploitation.
EHGI B.V.
Netherlands-based cybersecurity firm specializing in penetration testing and red teaming; actively conducts realistic attack simulations for medium and large organizations; registered in the Netherlands (KvK: 94674922) with an Amsterdam address at Papaverweg 34, 1032 KJ.
Security Hub
Cybersecurity company based in Warsaw, Poland, specializing in penetration testing for web, desktop, and mobile applications; offers comprehensive security assessments aligned with OWASP TOP 10, OWASP ASVS, PCI DSS, and CVSS; staffed by certified security engineers.
BIT SENTINEL
Cybersecurity company specializing in penetration testing, incident response, and security consultancy; 14 employees; Founded 2015; Based in Bucharest, Romania; Provides independent pentest services and managed security solutions.
Secure State Cyber
IT services and consulting company specializing in cybersecurity and data privacy; offers penetration testing and risk analysis; 12 employees, $5M revenue, founded 2005 in Stockholm, Sweden.
Simovits Consulting
Cybersecurity consulting firm specializing in information and IT security; provides penetration testing, security reviews, vulnerability scans, and incident management with a focus on long-term client relationships. Founded in 1997, based in Stockholm, Sweden, with 14 employees and +5.3% YoY growth; known for adherence to industry standards like NIST SP800-115 and OWASP.
Vumetric by TELUS
Vumetric by TELUS is a private cybersecurity company specializing in penetration testing and security audits; founded in 2007 with 16 employees and a -36.4% YoY growth. Based in Montréal, Canada, it offers services including external, internal, web application, and medical device penetration testing, as well as cloud security and SCADA cybersecurity assessments. The company has 16,557 monthly website visits and a global rank of #1,615,415, competing in the cybersecurity market with firms like simventions, nou systems, and lhp engineering solutions.
TENUMBRA
IT Services and IT Consulting company specializing in cybersecurity, including penetration testing; based in Ottawa, Canada, with 2 employees; offers adversary emulation, security services, and works with international organizations on critical security missions.
Secureops
SecureOps is a Montreal-based Managed Security Services Provider (MSSP) with 26 years of experience in security-by-design solutions. They offer penetration testing, risk assessments, and automated network scans, emphasizing proactive security and resilient outcomes.
CYBERWELL
Cyberwell is a Canadian cybersecurity firm headquartered in Calgary, AB, specializing in penetration testing and offensive security services. They provide manual, exploitation-based assessments of applications, networks, and infrastructure, utilizing advanced tools to uncover vulnerabilities and demonstrate potential breaches.
Xanthus Security
Xanthus Security is a private cybersecurity firm based in Ottawa, Canada, specializing in penetration testing for web, network, cloud, and IoT systems, including red team engagements; 6 employees with 40% YoY growth; offers IT security consulting and interactive circular economy training for manufacturing industry.
iPSS inc.
Cybersecurity company based in Ottawa, Canada; specializes in penetration testing, social engineering, and red/blue team exercises; 17 employees, $19.3M annual revenue, founded in 2002, with a focus on IT security and advisory services.
GetHacked
Cybersecurity company based in Mississauga, Ontario, Canada, specializing in penetration testing and ethical hacking; offers certified ethical hacking, web app security testing, and vulnerability assessments; holds industry certifications including OSCP, OSWE, GWAPT, GPEN, OSEP, CISA, CCSE, CCSA, CISSP.
Ibliss Digital Security
Brazilian cybersecurity firm based in São Paulo; provides penetration testing, security diagnostics, compliance validation, and staff training; confirmed presence of pentest services on multiple pages, with a focus on security assessments and process improvements.
Rogue Security
Mexican cybersecurity consulting company specializing in information security; provides penetration testing and ethical hacking services, including password cracking simulations via Rogue Kraken.
PulseSecure Pte Ltd
Cybersecurity and IT security consulting firm specializing in penetration testing services with CREST and OSCP-certified pentesters; 36 employees with 12.2% YoY growth; based in Singapore since 2008; expertise in web application security, secure coding, and application self-defense; global rank #2,616,188, Singapore rank #27,808, with 6,897 monthly website visits.
iSystems Security Ltd
Cybersecurity company based in Hong Kong; specializes in security risk assessment, audits, and penetration testing with a team of 3 employees; founded in 2010; offers services including penetration testing, cyber incident response, and privacy impact assessments.
SDAP
Cybersecurity company specializing in network security assessment, penetration testing, and project management; 9 employees, founded 2012, based in Hong Kong; offers penetration testing services, with 934 monthly website visits and a global rank of #9,192,159.
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Cyber Digital Research Limited
Hong Kong-based cybersecurity firm specializing in penetration testing services; confirmed addresses in Wanchai, Hong Kong, and Hong Kong incorporation details; provides ethical hacking and security assessments.
C-Secure
Japan-based cybersecurity company headquartered in Tokyo; offers web vulnerability scanning, penetration testing, secure coding, remediation coaching, and e-learning services; specializes in vulnerability assessment and simulated intrusion testing to enhance business security and operational efficiency.
McAiden Consulting Co., Ltd.
Cybersecurity firm specializing in penetration testing and security consulting; 10 employees; founded 2022; headquartered in Pak Kret, Thailand; provides cybersecurity services including penetration testing, with 1,308 monthly visits and a global rank of #8,287,719.
Secure D Global
Cybersecurity company specializing in security assessment, penetration testing, incident response, and compliance; 37 employees with 20.5% YoY growth; founded in 2018; headquartered in Bangkok, Thailand; operates across Southeast Asia with offices in Kuala Lumpur and Bangkok.
Datafarm Co., Ltd.
Thailand-based IT services and consulting company specializing in cybersecurity; 33 employees with 14.6% YoY growth; offers penetration testing, vulnerability assessment, and cybersecurity compliance services; ranked #6,849,479 globally and #96,421 in Thailand; active in cybersecurity, penetration testing, and IT security.
CyRadar
Cybersecurity company based in Vietnam; specializes in penetration testing services including web and mobile app pentesting; founded in 2017; 7 employees; located at FPT Tower, Hanoi; expertise in cybersecurity, big data, and AI.
FIRMUS
FIRMUS is a cybersecurity firm specializing in penetration testing, cyber threat intelligence, and vulnerability management; with 110 employees, $12.3M revenue, founded in 2008, based in Kuala Lumpur, Malaysia, and providing services including mobile/web app pen-testing and social engineering.
KSO Solutions
KSO Solutions is a Malaysia-based cybersecurity consultancy specializing in penetration testing and offensive cyber engagements; veteran owned and offering world-class services at competitive prices.
Elgada Bpo Solutions Inc.
Philippine-based business solutions provider in Makati; offers software development and cybersecurity testing services, including penetration testing and red teaming, as evidenced by external job postings and reviews.
Peneto Labs Private Limited
Peneto Labs Private Limited is an India-based cybersecurity firm specializing in penetration testing, vulnerability assessments, and security audits; with 12 employees, founded in 2017, offering internal, external, and cloud penetration testing services, and maintaining a modest online presence.