Find a pentest company with OSEP
64 companies have this certification
OSEP Cybersecurity Certification
The Offensive Security Experienced Penetration Tester (OSEP) certification was created by Offensive Security, the same organization behind the renowned OSCP certification. Launched in 2020, the OSEP was developed to address the growing need for advanced penetration testing skills that go beyond basic exploitation. The certification was designed to validate professionals' abilities to conduct sophisticated attacks against modern enterprises, including evading security controls, bypassing defenses, and operating in restricted environments.
The OSEP is highly valued in the cybersecurity industry because it demonstrates hands-on expertise in advanced penetration testing techniques used in real-world scenarios. Unlike many theoretical certifications, it requires candidates to complete a challenging 48-hour practical exam where they must compromise multiple targets in a simulated corporate environment. Employers recognize OSEP holders as having proven capabilities in offensive security operations, making it particularly valuable for penetration testers, red team operators, and security consultants who need to demonstrate their ability to identify and exploit complex vulnerabilities in enterprise networks.
Rednode
Cybersecurity company specializing in computer and network security; offers penetration testing (pentest) and PTaaS services with detailed scope and retests; based in Dover, Delaware, United States, with 3 employees and experiencing -40% YoY growth.
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.
TrustFoundry
IT services and consulting firm specializing in information security and penetration testing; 9 employees; founded 2014; headquartered in Overland Park, Kansas, USA; focuses on cybersecurity, application, network, and mobile security; serves organizations to mitigate cyber threats and malicious attacks.
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.
Q-Bit
Veteran-owned cybersecurity company based in Ohio; specializes in penetration testing and tailored cybersecurity services, emphasizing customized offensive security solutions.
CyberOne Security
CyberOne Security is a Texas-based cybersecurity company specializing in penetration testing, vulnerability assessments, and managed security services; with 57 employees, founded in 2012, it focuses on innovative, tailored security solutions and offers offensive security, application testing, and network security services.
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.
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RadiumFox
Cybersecurity firm based in Austin, Texas, providing penetration testing and application pentesting services; listed at 5900 Balcones Dr, Austin, TX 78731-4298. The company emphasizes ethical hacking and security assessments as core offerings.
GlobeTech LLC
Cybersecurity service provider based in Wisconsin, United States; specializes in vulnerability assessments, penetration testing, and adversarial emulation; offers threat and vulnerability analysis for security posture review and compliance.
SecCore GmbH
IT Services and IT Consulting company based in Silz, Austria, specializing in offensive security, penetration testing, red teaming, and cyber resilience; founded in 2025; 2 employees; focuses on realistic threat simulations to mirror attacker tactics.
Citadelo - Hackers on Your Side!
Cybersecurity company specializing in penetration testing, cloud security testing, and red teaming; 22 employees with +15.6% YoY growth; founded 2013; based in Czechia; $366K annual revenue; market leader in Slovakia and Czech Republic.
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.
ReTest Security
ReTest Security is a Danish cybersecurity company specializing in IT security testing, including penetration testing, vulnerability scanning, and security analysis; 17 employees, founded in 2019, headquartered in Herlev, Denmark. The firm emphasizes stress-free security testing services and maintains a web presence with 5,605 monthly visits and a global rank of #3,227,654.
Sekurno | Cybersecurity
Cybersecurity and IT consulting firm based in Tallinn, Estonia; 10 employees with 18.2% YoY growth; offers penetration testing services with detailed methodologies; specializes in smart IoT irrigation and water management solutions for sustainability.
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Cyberross OU
Cyberross OU is an Estonia-based IT services and consulting company specializing in cybersecurity and information security management; provides penetration testing services through ethical hacking and systematic vulnerability assessments, with a team of 2 employees founded in 2020 in Tallinn, Estonia.
Yogosha
Yogosha is a cybersecurity firm specializing in offensive security testing, including pentesting as a service, red teaming, and continuous security assessments; founded in 2015, with 151 employees and $15M in funding, headquartered in Paris, France, serving clients globally with a focus on vulnerability assessment and penetration testing.
bugshell
Cybersecurity company specializing in penetration testing and security services; founded in 2021, 6 employees (+16.7% YoY growth), headquartered in Berlin, Germany. Offers a European penetration testing platform with services including security seals, phishing, consulting, and training.
ProSec
German cybersecurity firm ProSec specializes in penetration testing and security audits; operates in Koblenz, Berlin, and München; offers web, mobile, and cloud security assessments with manual exploitation and realistic attack simulations.
Yekta IT GmbH
Germany-based private IT & cybersecurity company; 7 employees with 18.2% YoY growth, founded 2015 in Dortmund; specializes in penetration testing, cyber defense, and digital transformation; over 15 years of cybersecurity expertise, serving businesses and public institutions.
evait security GmbH
German-based IT services and consulting company specializing in penetration testing; provides security assessments via realistic attack scenarios; 2 employees; founded 2014; headquartered in Marburg, Hessen.
MottaSec
Cybersecurity firm specializing in penetration testing, cybersecurity consulting, and bespoke security solutions; founded in 2022, with 2 employees and +150% YoY growth; based in Dafni, Greece, with expertise in ICS/OT pentesting, red/purple teaming, and ISO 27001.
Tenendo
Tenendo is a private Irish-based IT & Services company specializing in penetration testing services, including application and infrastructure pentests; with 4 employees, founded in 2020, and a focus on security testing and threat intelligence.
NG SECURITY ITALY
Cybersecurity company specializing in penetration testing and vulnerability assessments; 3 employees with 100% YoY growth; founded 2007; headquartered in Somma Lombardo, Italy; website: https://www.ngsecurity.it; 1,600 monthly visits; global rank #8,321,487; market position: #8321487 globally, #256876 in Italy.
SafeBreach
Cybersecurity firm based in Bologna, Italy, specializing in penetration testing and breach simulation; offers automated pentest solutions, attack path validation, and exposure assessment with a focus on vulnerability detection and security posture testing.
My Voice
Italian cybersecurity company based in Bologna; provides penetration testing services as part of security assessments, positioning as a cybersecurity partner for SMEs; uses Italian VAT number 01813600663.
WhiteHats B.V.
Cybersecurity IT services company specializing in penetration testing, vulnerability scans, and security consulting; 11 employees with 7.7% YoY growth; founded 2013; based in Eindhoven, Netherlands; offers web application security audits, investigations, workshops, and security advice.
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.
Securitum
Cybersecurity IT services company specializing in penetration testing and security audits; 35 employees, +22.9% YoY growth, founded 2009 in Kraków, Poland; offers web, mobile, infrastructure, and cloud security testing, along with training and public reports.
SecurHUB
Poland-based cybersecurity firm SecurHUB Sp. z o.o. specializes in penetration testing services for web, mobile, network, and cloud environments, with a focus on OWASP Top 10 and ASVS compliance. The company is headquartered in Warsaw, Poland, and guarantees high-quality security solutions through certified specialists.
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H-X Technologies
H-X Technologies is a Romanian-based private cybersecurity firm specializing in IT and Web3 security services, including penetration testing, security audits, compliance, and smart contract security. With 12 employees and founded in 2016, it serves sectors like finance, healthcare, and blockchain, offering security testing, consulting, and training services.
Zer0 Day Technologies
Romanian cybersecurity firm based in Bucharest; specializes in offensive security, penetration testing, and red teaming; offers active directory, web application, and network penetration testing services.
EPAM Systems
EPAM Systems is a Slovakia-registered company specializing in software engineering, digital platform development, and digital product design; it offers active penetration testing services, including application, API, cloud, network, and device security testing, as well as PTaaS.
SECRA SOLUTIONS
Cybersecurity and IT consulting firm specializing in penetration testing, offensive security, and security architecture; 4 employees, founded 2025, based in Mostoles, Spain; offers web, IoT/OT, wireless, and cloud pentesting services, with a focus on strategic security and GRC.
XRAY CyberSecurity
Cybersecurity firm specializing in penetration testing services such as network, application, and social engineering assessments; based in Valencia, Spain, with 6 employees, founded in 2013, and offering internationally certified testing solutions.
Nova Security New Zealand
IT services and cybersecurity company based in Auckland, New Zealand; specializes in penetration testing, cloud security, and blockchain security with 2 employees, founded in 2024, and a monthly web traffic of 591 visits.
Blacklight Security
Australian cybersecurity company specializing in penetration testing and red teaming; offers offensive security services including ethical hacking; based in Sydney, NSW 2000.
SilentGrid Security
Australian cybersecurity consultancy specializing in adversary simulation and penetration testing; 14 employees with 16.7% YoY growth; headquartered in Sydney, with over 10 years of experience in offensive security services.
ITSEC Australia / New Zealand
Cybersecurity consulting firm based in Melbourne, Australia; specializes in penetration testing, governance, risk management, OT cybersecurity, SOC services, and awareness programs; founded 2010; 5 employees; USD 141K funding; active in cybersecurity services with a focus on IT, OT, and IoT environments.
Protectera
Protectera is an Australian-based IT services and cybersecurity firm specializing in penetration testing, security assessments, and digital transformation; with 11 employees, +20% YoY growth, founded in 2015, serving nationwide with a focus on active simulated attack testing and enterprise data security.
Packetlabs
Packetlabs is a Canadian-based private cybersecurity firm specializing in penetration testing; 43 employees, founded in 2011, headquartered in Mississauga, Ontario. It is CREST-accredited and SOC 2 Type II attested, delivering impact-first security assessments with no outsourcing or false positives. The company has a strong web presence with 45,956 monthly visits and ranks #718,442 globally.
Stingrai
Cybersecurity company specializing in penetration testing services; offers web application, network, and active directory security testing; founded in 2021, 6 employees, Toronto, Canada; +42.9% YoY growth.
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.
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.
Argon Cyber Security
Canada-based cybersecurity company specializing in penetration testing; offers advanced vulnerability assessments with a team of experts in AppSec, DevSecOps, pentesting, and cloud security. Known for high-quality, affordable services and a focus on vulnerability hunting.
XRAY CyberSecurity
UK-registered private cybersecurity firm specializing in penetration testing; offers external/internal network pentests, application testing, and social engineering; 6 employees; founded 2013; headquartered in London, UK; internationally certified with active social media presence.
Extremus
Extremus is a Brazil-based cybersecurity firm specializing in offensive security, including penetration testing, red teaming, and advanced security assessments; founded in 2003 with 1 employee, it emphasizes reeducating processes and implementing controls to ensure business continuity in monitored and well-defended environments.
Taura Security
Brazil-based cybersecurity firm in Porto Alegre; specializes in penetration testing and red team services with certifications including OSCP, OSWE, and OSEP; focuses on exposing critical vulnerabilities through simulated attacks to protect client operations.
Teisatsu
Brazilian cybersecurity company specializing in penetration testing; offers advanced security assessments simulating sophisticated adversaries; headquartered in Goiania, Goiás, with CNPJ 47.957.890/0001-98.
Nexa
IT services and consulting company specializing in cybersecurity; offers penetration testing services via dedicated webpage; 23 employees; founded 2015; Montevideo, Uruguay.
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.
DracoSec Research Limited
Cybersecurity firm specializing in penetration testing, red teaming, vulnerability assessment, and security audits; 3 employees; based in Hong Kong, Hong Kong; offers expertise in offensive cybersecurity, cloud security, and social engineering.
RCS Cyber Security
Cybersecurity company specializing in penetration testing, vulnerability scanning, source code testing, and digital forensics; founded in 2012, headquartered in Taipei, Taiwan, with 3 employees and 50% YoY growth. Offers professional security services for various industries, with a global rank of #5,687,143 and a country rank of #69,496.
GMO Flatt Security Inc.
Cybersecurity startup specializing in security assessments and penetration testing; 26 employees with 16.7% YoY growth since 2017; based in Shibuya, Tokyo, Japan; ranked #828,465 globally and #131,936 in country, offering expert security services and tools.
Powder Keg Technologies
Japanese cybersecurity firm founded in 2021 with 2 employees; specializes in penetration testing services with automated solutions like MUSHIKAGO; operates in a niche market with a global rank of #5,932,892 and 2,376 monthly visits.
RCS Cybersecurity
Japan-based cybersecurity firm specializing in penetration testing and vulnerability assessments; offers comprehensive security testing with internationally certified red team and penetration testing experts, including OSCE, OSEP, OSCP, and OSWP; headquartered in Tokyo, Japan.
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.
Ninh Thanh Production and Trading Co., Ltd.
Vietnam-based cybersecurity provider specializing in security assessment services; offers penetration testing, vulnerability assessment, red team engagement, and infrastructure security; headquartered in Hanoi, Vietnam.
Ninh Thanh Production and Trading Co., Ltd.
Vietnam-based cybersecurity company established in 2015 with a registered address in Hanoi and tax code 0106778512; specializes in penetration testing and security assessments, providing targeted cyber security solutions and services.
Flawtrack
Cybersecurity company specializing in offensive security and penetration testing; offers API and continuous penetration testing, security design, and threat intelligence; 5 employees with -9.1% YoY growth; based in Kuala Lumpur, Malaysia; website: https://flawtrack.com
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.
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Secuna
Cybersecurity company specializing in penetration testing and vulnerability assessments; 11 employees with 22.2% YoY growth; founded 2017; headquartered in Taguig, Philippines. Secuna is a leading offensive security platform empowering organizations to proactively identify and resolve vulnerabilities.
hackstreetboys
Cybersecurity company specializing in penetration testing, red teaming, and capture the flag activities; based in Manila, Philippines, with 1 employee and a focus on knowledge-sharing and international CTF participation.
Aegix
Cybersecurity company specializing in penetration testing, threat hunting, and incident response; founded in 2023, with 2 employees, headquartered in Bali, Indonesia, offering enterprise-grade protection through elite-certified experts (OSCE3, OSEP, OSCP) and comprehensive security services.
Bugfoe Private Limited
Indian cybersecurity firm based in Ahmedabad, Gujarat; specializes in penetration testing services to enhance organizational security; trusted by numerous clients over an extended period.