Find a pentest company with CRTP
44 companies have this certification
CRTP Certification Overview
Origin and Background
The Certified Red Team Professional (CRTP) certification was created by Pentester Academy (now part of INE Security), founded by Nikhil Mittal. Launched in the mid-2010s, the CRTP was developed to address the growing need for practical, hands-on training in Active Directory security and Windows domain exploitation. Unlike many theoretical cybersecurity certifications, CRTP was designed to provide security professionals with real-world attack simulation skills, focusing specifically on the techniques used by adversaries to compromise enterprise networks.
Industry Value and Importance
The CRTP is valued in the cybersecurity industry for its practical, lab-based approach to red team operations and Active Directory attacks. Employers recognize it as evidence that a professional can perform actual penetration testing techniques rather than simply understanding theoretical concepts. The certification is particularly respected for its focus on Windows enterprise environments, which remain the backbone of most corporate networks. For offensive security professionals, red teamers, and penetration testers, the CRTP demonstrates hands-on capability in privilege escalation, lateral movement, and domain compromise—skills that are directly applicable to real-world security assessments and are increasingly sought after as organizations prioritize proactive security testing.
G5 Cyber Security
Cybersecurity company specializing in penetration testing, vulnerability scans, and cybersecurity consulting; 4 employees, founded 2019, headquartered in Middletown, Delaware, USA; focuses on small and medium businesses with services including web app assessments, network security, and vulnerability scans.
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.
White Hack Labs
Cybersecurity company specializing in penetration testing and vulnerability discovery; 5 employees, founded 2018, headquartered in New York, NY; offers manual and automated security assessments for SaaS, mobile, web, cloud, blockchain, and infrastructure assets.
Resonance Security
Resonance Security is a private cybersecurity firm founded in 2023 and based in New York, NY; specializing in penetration testing, configuration reviews, red teaming, and smart contract security; with 10 employees and $1.5M in pre-seed funding. The company offers comprehensive cybersecurity solutions for institutions and individuals, emphasizing ease of use across technical levels and budgets.
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.
DAVISEC GmbH
IT services and cybersecurity consulting firm specializing in penetration testing, security assessments, and red teaming; 3 employees, founded 2025, headquartered in Klagenfurt, Austria; offers external/internal pentests, Active Directory/Azure/M365 assessments, web/mobile app testing, red/purple teaming, and awareness training.
Allsecure IT Security
Austrian cybersecurity company specializing in penetration testing; explicitly references identifying security vulnerabilities before attackers; based in Austria with no evidence of international operations.
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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.
QURIUSFOX Security Consulting
Cybersecurity company specializing in penetration testing, offensive software development, and security consulting; employs 2 people (+100% YoY, +1 person), founded 2024, headquartered in Brno, Czechia; explicitly states penetration testing as a core service, highlighting expertise in security assessments and offensive security.
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.
Hackmosphere
Cybersecurity firm based in France; specializes in penetration testing services including cyber and physical pentests, with detailed scope and methodology; website in French and domain .fr confirm French headquarters.
DIGISEC
Cybersecurity consulting firm based in Nantes, France; specializes in audit, penetration testing, governance, and training with 15 years of IT infrastructure experience; 2 employees, +50% YoY growth, founded 2020.
Sekera
Cybersecurity company specializing in penetration testing and red teaming; based in France with headquarters confirmed by website language and company profile; offers risk management and cybersecurity solutions.
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Inetum
France-based IT services company specializing in cybersecurity; provides penetration testing, ethical hacking, and risk assessment services; headquartered in Saint-Ouen, Île-de-France, France.
Offensight
Offensight is a France-based cybersecurity company specializing in proactive security testing for SMEs and ETIs; they offer security audits, intrusion tests, and customized action plans to protect businesses and data. The company has 1 employee and focuses on penetration testing and offensive cybersecurity services.
NSIDE ATTACK LOGIC GmbH
Cybersecurity company specializing in penetration testing, red teaming, and security assessments; 11 employees, founded 2014, headquartered in München, Germany; over 250 clients; services include web app hacking, IoT, SCADA, hardware hacking, and social engineering.
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.
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.
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.
4Prime | IT Security
Cybersecurity company based in Warszawa, Poland; 25 employees; specializes in penetration testing, security audits, incident management, and infrastructure security; offers comprehensive cybersecurity solutions for businesses, with a focus on MITRE ATT&CK framework protection.
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.
nFlo
Polish cybersecurity firm based in Warsaw; specializes in penetration testing, IT audits, and security assessments with explicit pentest services including simulated hacking attacks and red teaming; headquartered at ul. Ząbkowska 31, 03-736 Warszawa.
Sibs
Cybersecurity company headquartered in Alfragide, Lisbon, Portugal; offers penetration testing and attack simulation services, including controlled attack simulations, with a focus on cybersecurity solutions for businesses.
Istrosec
Cybersecurity company headquartered in Petržalka, Bratislava, Slovakia; provides threat intelligence, incident response, and cyber advisory services; offers penetration testing (ethical hacking); ISO/IEC 27001:2013 certified and TI accredited.
Redexploit, S.L.
Cybersecurity company specializing in Red Teaming, penetration testing, and hacking; based in Barcelona, Spain with 2 employees and experiencing 50% monthly growth. Provides security audits, continuous monitoring, vulnerability management, incident response, and social engineering services.
Cypro Ab
Cypro Ab is a Sweden-based cybersecurity firm specializing in holistic digital protection; headquartered in Malmö, with capabilities in penetration testing supported by active job postings for senior pentesters and use of tools like Kali Linux and Metasploit.
3Tenets Consulting - Cybersecurity Penetration Testing Services
Cybersecurity consulting firm specializing in penetration testing and offensive security; 3 employees with a 25% workforce decline YoY; based in Oakville, Ontario, Canada; offers web app testing, cybersecurity assessments, and auditing.
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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.
Securityium
Securityium Ltd is a UK-based cybersecurity firm specializing in penetration testing and vulnerability assessments; with 2 employees and a 57.1% YoY workforce decline, it focuses on high-security testing services for enterprise clients. Founded in 2020 and headquartered in London, it maintains a modest online presence with 2,219 monthly visits and a global rank of #6,583,875.
IntruderLabs
Security and investigations company specializing in offensive security and penetration testing; 2 employees with -42.9% YoY growth; based in Salvador, Brazil; offers security services including pentest, project creation, and process integration.
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.
Vantico
Brazil-based cybersecurity firm headquartered in São Paulo; specializes in penetration testing and offensive security consulting, providing real-time reports and expert support to protect corporate data.
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.
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.
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.
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.
KAIZEC SDN BHD
Malaysia-based IT services and cybersecurity company specializing in advanced penetration testing and Red Teaming; offers security assessments simulating cyberattacks to identify vulnerabilities; founded in 2023 with 1 employee.
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.
CYBENTECH
IT services and consulting company specializing in web/mobile app development and cybersecurity; offers penetration testing, red teaming, blue teaming, hardening, patch management, and GRC services; founded 2025; based in Jakarta, Indonesia; 3 employees.
Shieldbyte Infosec Pvt. Ltd.
India-based cybersecurity firm specializing in penetration testing and vulnerability assessment; offers VAPT, attack simulations, and comprehensive security audits; headquartered in Mumbai, Maharashtra, India; CERT-In empanelled security auditor.
Kratikal
Indian cybersecurity firm specializing in computer and network security; 141 employees (+21.6% YoY growth), $3.2M annual revenue, $1M funding; founded 2012; offers penetration testing, vulnerability assessment, web app security, and comprehensive cybersecurity solutions.