Find a pentest company offering Red Teaming
467 companies offer this service
Corpus Solutions a.s.
Corpus Solutions a.s. is a Czech cybersecurity company specializing in applied security services including penetration testing, red teaming, and security assessments; with 52 employees, 18.2% YoY growth, founded in 1992, headquartered in Czechia, and known for its offensive security expertise.
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.
BDO Czech Republic
Business consulting and services company providing audit, tax, legal, accounting, and advisory services; 224 employees (+12.2% YoY growth); offers penetration testing services including internal infrastructure, dynamic application testing, and threat-led pentesting; founded 1991; headquartered in Prague, Czechia.
Yoursec
Czech cybersecurity firm based in Prague; specializes in penetration testing, web application security, and IT system assessments; offers services in Czech and English; supports clients with cyber protection and security solutions.
SYS NET SHIELD
Cybersecurity firm based in Prague, Czechia, specializing in penetration testing and security assessments; provides active pentest services with a dedicated team including Patrik Žák, a penetration tester.
Hacking Lab
Cybersecurity company based in Czechia; specializes in penetration testing, Red Teaming, and social engineering assessments; headquartered in Prague, Czech Republic with registered office at ARICOMA, Voctářova 2500/20a, 180 00 Praha 8 Libeň.
Noibit
Czech cybersecurity firm based in Prague; provides penetration testing and red teaming services, with headquarters in Prague, Czechia, and registered addresses in Prague. The company specializes in offensive security solutions and serves clients across industries.
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Bezpečnost.it
Czech cybersecurity firm Bezpečnost.it s.r.o. based in Prague; provides penetration testing and red teaming services; headquarters at Pavlíkova 606/14, 142 00 Praha; specializes in simulated attack scenarios to identify vulnerabilities.
Direct It.cz
Czech cybersecurity company based in Prague; provides penetration testing and red teaming services to simulate multi-vector attacks for organizational resilience; headquarters in Prague, Czechia, with registered address at Mánesova 1723/70, 12000 Praha, IČO 05669260.
Defensive Group
IT security consultancy based in Solrød Strand, Denmark; specializes in penetration testing, red teaming, and security solutions with 16 employees and a focus on resilience and risk assessment.
EAGLE SHARK CYBER DEFENCE
Cybersecurity and investigations company specializing in physical and digital penetration testing, incident response, and cyber risk assessment; 5 employees, founded 2017, headquartered in Copenhagen, Denmark; part of Eagle Shark Group with a comprehensive security approach.
Danish Cyber Defence
Danish Cyber Defence is a Denmark-based cybersecurity and IT consulting company specializing in penetration testing, red team, blue team, incident response, and cybersecurity education; with 7 employees, founded in 2017, headquartered in Copenhagen, Denmark, and actively engaged in cybersecurity operations and consulting.
Outpost24
Cybersecurity company based in Denmark; offers penetration testing, PTaaS, attack surface management, and application security solutions; operates with offices in Copenhagen, Denmark, and headquarters in Sweden; provides comprehensive attack simulation and risk management services.
Convergint
Global service-based systems integrator with Danish subsidiary Convergint Denmark ApS (CVR DK43510649) based in Copenhagen; provides security and technology integration services, including penetration testing (red team and pentest) as evidenced by a 2022 contract.
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Kmd
KMD is a Denmark-based IT and technology provider for the public sector and enterprises; it offers penetration testing and security assessment services via its Cyber Defense Center, including Penetration Testing and Red Teaming. The company has headquarters in Denmark and multiple offices across Danish cities, with supporting evidence from domain registration and annual reports.
CR Consulting
Denmark-based cybersecurity consultancy specializing in penetration testing, ethical hacking, and red teaming; offers security assessments and resilience services as part of governance, risk, and compliance solutions.
Clarified Security OÜ
Cybersecurity company specializing in manual webapp penetration testing, security training, and remote testing; 14 employees with 14.3% YoY growth; founded 2011; based in Tallinn, Estonia; focuses on practical security services, red teaming, and cyber exercises.
Binalyze
Cybersecurity company based in Tallinn, Estonia; specializes in penetration testing, red teaming, and incident response services; performs at least annual pentests and attacker simulations; headquartered in Tallinn, Estonia.
Clarified Security
Estonian cybersecurity firm based in Tallinn; provides manual WebApp penetration testing services, with a focus on security clarity and expertise in pentesting; registered at Lõõtsa 12, Tallinn, Estonia, with registration number 12164540.
Reversec
Cybersecurity consulting firm specializing in penetration testing and offensive security; NCSC-verified CHECK company; 148 employees; Helsinki, Finland; Founded over 30 years ago; Focused on helping organizations tackle complex cybersecurity threats through offensive-driven services and continuous research.
2NS Cybersecurity Oy
Cybersecurity company specializing in security testing, consulting, and training; provides penetration testing services with automation and manual approaches, including internal/external pentests and Active Directory assessments; 35 employees; headquartered in Espoo, Finland; operates in information security, web and mobile application security, and cybersecurity.
Fitsec Ltd
Cybersecurity company specializing in threat intelligence, malware analysis, and penetration testing; 5 employees, founded 2009, headquartered in Espoo, Finland; offers advanced, customizable cybersecurity services including APT detection, incident response, reverse engineering, and SCADA auditing.
HiQ Finland
IT & Services company specializing in innovative technology solutions, including penetration testing and security testing; 164 employees; Founded 1987; Espoo, Finland; Provides cybersecurity, digital business, and software development services with a focus on security testing and Red Teaming.
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.
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.
Cyberwave
Cyberwave is a cybersecurity firm headquartered in Paris, France, providing penetration testing, red teaming, and cybertraining services. The company focuses on identifying vulnerabilities and simulating attacks to improve security posture.
Orange Cyberdefense SA
French cybersecurity firm based in Paris La Défense; provides penetration testing, red teaming, and threat-led security testing services, demonstrating a focus on active defense and attack simulation capabilities.
Wavestone
Wavestone is a France-based business consulting and services company with 5,043 employees, $1.0B annual revenue, and EUR1.3B market cap; it specializes in strategic transformations, including cybersecurity, data & AI, and sustainability. The firm actively offers penetration testing and red-teaming services, including AI red-teaming and production IT intrusion testing, emphasizing active security defense testing.
Sogeti
Sogeti is a France-based technology services division of Capgemini, employing approximately 20,000 professionals across 13 countries. It specializes in local professional services, including cybersecurity penetration testing, red teaming, and security assessments, with active engagement in adversarial AI testing and system hardening.
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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.
NearSecure
France-based cybersecurity firm registered with SIREN 934357195 and SIRET 93435719500015, located at 61 Rue de Lyon, Paris; provides penetration testing and red teaming services, demonstrating active security testing expertise.
Sekoia.io
Cybersecurity company based in Rennes, France; specializes in detection and response solutions powered by AI and Cyber Threat Intelligence; 91 employees with 10.5% YoY growth; $32M annual revenue; $106.3M total funding; offers penetration testing and red teaming services; founded in 2022; last funding round Series B in April 2025.
Alter Solutions
French cybersecurity company operating as ASF ACT DIGITAL / Alter Solutions France; headquartered in Versailles with SIREN 512196064 and SIRET 51219606400020; specializes in penetration testing, including audits, intrusion tests, and Red Teaming, with active service offerings listed on its website.
Neverhack France
Cybersecurity company headquartered in Paris, France, specializing in penetration testing and offensive security services; provides in-depth penetration testing and red teaming; registered SIREN 327086435, founded in France.
Atos
Atos is a France-based global IT services and consulting company with 39,394 employees and $9.5B annual revenue; operates in 61 countries under brands Atos and Eviden; European leader in cybersecurity, cloud, and high-performance computing; offers penetration testing services as part of its cybersecurity solutions, emphasizing active security testing and exploitation capabilities.
Armada
France-based cybersecurity firm Armada - Exa offers managed infosec and cyberprotection services, including penetration testing, Red Teaming, Attack Surface Management, and Continuous Testing; holds CREST accreditation for penetration testing, demonstrating high technical standards and active security testing capabilities.
ByteSnipers GmbH
Cybersecurity company specializing in penetration testing and security assessments; offers web, mobile, API, and network penetration tests, training, and expert advice; founded 2020; 3 employees; Bremen, Germany; 6,506 monthly visits; global rank #2,969,338.
Blaze Information Security
Blaze Information Security is a private cybersecurity company specializing in offensive security and penetration testing; 43 employees with 21.3% YoY growth, $1M-$5M revenue, founded in 2016, headquartered in Germany, serving over 25 countries worldwide.
Jakkaru GmbH
German cybersecurity and IT consulting company specializing in penetration testing and vulnerability research; 3 employees with 33.3% YoY growth; headquartered in Kassel, Germany; focuses on digital security and proactive risk detection.
Apollon Security
Cybersecurity company specializing in penetration testing, vulnerability management, and threat intelligence; founded in 2022, with 8 employees, based in Monheim, Germany, and recognized by Cyber Security Awards. Offers extensive services including penetration testing, phishing tests, and cyber security maturity assessments.
Mantodea Security GmbH
German IT security firm founded in 2023; 6 employees with 10% monthly and yearly growth; specializes in penetration testing, red teaming, threat intelligence, operational technology security, and tabletop exercises; headquartered in Frankfurt am Main, Germany.
Blue Frost Security GmbH
Cybersecurity company specializing in penetration testing, vulnerability assessments, and security research; 6 employees, founded 2013, headquartered in Frankfurt, Germany; offers security advisories, whitepapers, and tools on vulnerabilities like Microsoft Hyper-V and privilege escalation; active in security testing, reverse engineering, and web application security.
SySS GmbH
IT security company specializing in penetration testing, digital forensics, red teaming, and live hacking; 52 employees with 4.5% YoY growth; founded in 1998; headquartered in Tübingen, Germany; ranked #2,085,085 globally with 8,199 monthly visits; focuses on identifying vulnerabilities in IT infrastructures and applications.
Security Research Labs
Cybersecurity consultancy and research collective specializing in offensive security, penetration testing, and telco security; 43 employees (+14.5% YoY growth), $10M revenue; founded 2010; headquartered in Berlin, Germany.
cirosec GmbH
cirosec GmbH is a Germany-based private computer and network security firm specializing in penetration testing, incident response, and security consulting. With 29 employees and founded in 2002, it focuses on information security services, red teaming, audits, and risk management, serving clients in the German region. The company has an annual revenue of $222,169 and is active in industry events and social media.
HanseSecure GmbH
HanseSecure GmbH is a German IT security company specializing in penetration testing, offensive security, and strategy consulting; with 4 employees, founded in 2022, headquartered in Munich, and offering tailored security services including self-determined attacks and protection. It has 9,746 monthly website visits and ranks #2,165,654 globally, operating in categories such as red team, social engineering, and vulnerability scans.
Awaretec GmbH
German-based cybersecurity firm specializing in penetration testing and red teaming; offers comprehensive attack simulation services including web, network, mobile, and cloud pentests; operates on a .de domain and is corroborated by German incorporation and headquarters profiles.
SCHUTZWERK GmbH
Cybersecurity consultancy specializing in independent IT and cybersecurity assessments; offers penetration testing services; 17 employees; founded 2002; headquartered in Ulm, Germany; active in application security, risk assessment, embedded security, and more.
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.
Hxnwrk
Cybersecurity firm based in Bielefeld, Germany, specializing in penetration testing, red teaming, and vulnerability assessments; provides simulated attack testing services and security evaluations.
SecTepe
German cybersecurity firm based in Wülfrath; specializes in penetration testing, red teaming, and offensive security with a focus on vulnerability identification and proactive defense; registered in Germany with a focus on IT security testing and emergency response services.
Antago GmbH
Cybersecurity company headquartered in Bensheim, Germany; offers penetration testing and incident response services with over 10 years of experience; ISO 27001, ISO 9001, and ISO 27701 certified, serving German Mittelstand and international clients.
HvS-Consulting
Cybersecurity consulting firm based in Garching, Germany; over 20 years of experience in offensive security; 50+ highly qualified employees; 500+ satisfied clients including 50% of DAX companies; specializes in penetration testing, red teaming, and security stress tests.
Admijalo
German cybersecurity firm based in Minden; specializes in penetration testing, security audits, and red teaming; provides services including vulnerability assessments and security training; emphasizes human-factor security with 82% of attacks starting with human error; conducts over 10,500 security evaluations annually.
BDO Cyber Security GmbH
German cybersecurity company based in Hamburg; specializes in offensive security services including penetration testing, red teaming, and OT/IoT security assessments; offers live crisis simulations and practical security insights for clients.
Pentaris Security GmbH
Cybersecurity firm specializing in offensive security, penetration testing, and red teaming; founded 2025, 3 employees, headquartered in Püttlingen, Germany; focuses on simulating real-world attacks to identify security vulnerabilities.
whitelisthackers
Cybersecurity company specializing in penetration testing, red teaming, and ethical hacking; based in Bamberg, Germany with 10 employees and +25% YoY growth since 2016. Provides active offensive security services including simulated attacks and vulnerability exploitation, confirmed by dedicated service pages and categories.
Cybertise
Cybertise is a German cybersecurity firm specializing in offensive security and penetration testing; it offers manual BlackBox and GreyBox pentest services, with legal registration as Cybertise UG (haftungsbeschränkt), based in Siegen, Germany, and registered under HRB 13133.
GAI NetConsult GmbH
IT services and consulting company based in Berlin, Germany, founded in 1994 with 14 employees; specializes in secure ebusiness solutions, security management, risk analysis, audits, and process control; offers penetration testing, security audits, and red teaming services; focuses on public administration, healthcare, and government agencies.
Pentest24® IT-Security & Penetration Testing
Germany-based IT security company specializing in penetration testing and consulting; employs BSI-certified penetration testers; operates under Bindig Media GmbH in Chemnitz; offers comprehensive security assessments for companies and authorities in Germany; 1 employee; 656 monthly website visits.
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SySS GmbH
German cybersecurity company specializing in penetration testing; provides modular pentest services with detailed reports; headquartered in Tübingen, Germany; GmbH registered.
pen.sec AG
Germany-based IT services and consulting company specializing in cybersecurity, including penetration testing, weak-state analysis, and security consulting; 2 employees with 166.7% YoY growth, founded in 2017, offering comprehensive cyber security solutions.
DSecured
IT security company specializing in penetration testing, red teaming, bug bounty hunting, and threat intelligence; founded 2023 in Berlin, Germany, with a background in offensive security and vulnerability assessment. Operates as a private firm with 1 employee, focusing on cybersecurity consulting and vulnerability detection.
Exploit Labs LLC
Cybersecurity company specializing in penetration testing, vulnerability assessments, and red teaming; based in Germany with a registered address in Eschborn and founded in 2022; provides cybersecurity services and training in the MENA and GCC regions; 1 employee, with active web and social media presence.
siberas GmbH
German cybersecurity consulting firm specializing in security analyses and penetration tests; headquartered in Winnenden with a GmbH registration; provides independent IT security assessments and vulnerability identification services.
8com GmbH & Co. KG
IT services and consulting company based in Germany; 52 employees with 47.5% YoY growth; specializes in IT security including penetration testing, security audits, and information security management; serves clients in textile and personalized apparel sectors; global rank of ~4.6 million with 3,700 monthly visits.
Sse Secure Systems Engineering
German cybersecurity firm specializing in tailored IT security solutions; offers penetration testing, red teaming, and scenario-based assessments; headquartered in Berlin, Germany, with a GmbH legal form, emphasizing resilience through defensive and offensive security approaches.
Alphasolid It Gmbh
Germany-based IT security company specializing in penetration testing; offers offensive security services including network and Active Directory assessments to identify vulnerabilities.
SySS GmbH
German IT-security provider specializing in penetration testing and offensive security; headquartered in Germany; offers services including pentest, red teaming, and live hacking, with a focus on proactive security assessments.
Securance GmbH
Cybersecurity firm based in Düsseldorf, Germany; provides penetration testing, red teaming, and offensive security services; offers state-of-the-art cyber insurance with security expertise; supports offensive security with detailed testing services and ethical hacking capabilities.
binsec group GmbH
Germany-based cybersecurity firm specializing in penetration testing with over 10 years of experience; offers professional pentesting, security training labs, and IT solutions for security testing. Legally named binsec group GmbH, headquartered in Frankfurt am Main.
Claranet
Claranet GmbH is a German-based managed services provider offering network, hosting, and application management across Europe and Brazil; headquartered in Frankfurt, with expertise in cybersecurity including penetration testing, red teaming, and cloud security assessments.
0xda7a
0xda7a is a Germany-based IT services and consulting company specializing in cybersecurity, data protection, and reverse engineering; founded in 2024 with 1 employee. It provides penetration testing, red teaming, security engineering, SOC as a Service, and security awareness training, focusing on comprehensive cybersecurity and software reverse engineering solutions.
DIESEC
German-founded cybersecurity firm based in Darmstadt, Germany; provides penetration testing, SOC as a Service, and compliance solutions; specializes in analyzing and responding to cybersecurity threats with a focus on vulnerability exploitation and simulated attacks.
Redlings
German cybersecurity firm specializing in penetration testing, web application security, red teaming, and social engineering; headquartered in Mannheim, Germany, with a focus on enhancing clients' security posture through technical assessments and consulting services.
LEV3L GmbH
German cybersecurity firm LEV3L GmbH specializes in IT security consulting and penetration testing services, including penetration tests, Red Teaming, and social engineering; founded in Germany, it focuses on pragmatic digital resilience for mid-sized businesses.
MGM Security Partners
German cybersecurity firm based in Munich; provides penetration testing, application security assessments, and red teaming services; specializes in offensive security testing and cybersecurity evaluations.
Stract
German cybersecurity service provider specializing in penetration testing and vulnerability assessments; 2 employees, founded 2020, headquartered in München, Bayern, Germany. Focuses on identifying security gaps through customized solutions, including data forensics and proactive penetration testing.
Blueteam GmbH
Cybersecurity firm headquartered in Hannover, Germany, providing penetration testing, red teaming, and social engineering services; offers detailed testing methodologies including whitebox, greybox, and blackbox approaches, with a focus on vulnerability identification and security enhancement.
DTS Systeme GmbH
German IT services and consulting company founded in 1983; 164 employees, $25M revenue; specializes in cloud, cybersecurity, managed services, and software development; provides penetration testing, vulnerability scans, and red teaming as part of offensive security services, with regular assessments and simulated attacker scenarios.
SySS GmbH
Cybersecurity firm based in Tübingen, Germany, specializing in penetration testing services; promotes expert-driven, rule-based IT security assessments and vulnerability identification.
Itiso GmbH
Hamburg-based cybersecurity firm with over 20 years of experience; specializes in penetration testing, Red Teaming, and vulnerability assessments; headquartered in Hamburg, Germany, with a focus on security testing services.
ThreatScene
ThreatScene is a private IT Services and IT Consulting firm specializing in cybersecurity solutions, including penetration testing, incident response, threat intelligence, and digital forensics. Founded in 2024 and headquartered in Athens, Greece, it has 15 employees and experienced 100% YoY growth. The company provides top-tier cybersecurity services to public bodies, B2B enterprises, defense, maritime, and critical infrastructure sectors, focusing on protecting organizations from evolving cyber threats.
TwelveSec
Cybersecurity company specializing in penetration testing and threat-led attack simulations; 18 employees, 12% YoY growth, founded 2012, headquartered in Greece, offers comprehensive security assessments including TLPT, with 259 monthly website visits and active social media presence.
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.
Logisek
Cybersecurity company specializing in penetration testing, security consulting, and risk assessments; 5 employees, $5.1M revenue, founded 2008 in Greece, expanded to Romania in 2019; offers services including web, mobile, and IoT penetration testing, with a focus on comprehensive digital security solutions.
Neurosoft
Neurosoft is a Greece-based IT services and consulting firm with 208 employees, EUR37.9M annual revenue, and a EUR15.1M market cap. As a leading managed services provider, it specializes in cybersecurity, technology solutions, and field services, offering penetration testing, security assessments, and attack simulations to improve client security and resilience.
Qualco Group
Greece-based software development company with 83 employees; founded in 1998; recently acquired cybersecurity firm Cenobe, which offers penetration testing, red teaming, threat intelligence, and incident response services; operates in industrial manufacturing, credit management, AI, and data analytics sectors; 4.8% annual growth; global web rank #5,083,380.
RCETECH
Greece-based cybersecurity company specializing in penetration testing; headquartered in Athens, Greece, with explicit service offerings in penetration testing, utilizing advanced security technologies.
AMSEC
Cybersecurity firm based in Greece; provides penetration testing, vulnerability management, and managed security services; explicitly offers expert penetration testing and red teaming; located in Heraklion, Crete, Greece.
PRIORITY
PRIORITY is a Greece-based private business consulting and services company specializing in GDPR compliance, data protection, ISO management systems, and penetration testing; with 85 employees, 8.2% YoY growth, founded in 1995, and explicit penetration testing services including red teaming, vulnerability assessment, and forensics.
Whiteshield Ethical Hacking
Whiteshield Ethical Hacking is a Hungary-based IT services and consulting company specializing in manual penetration testing for web, mobile, and infrastructure security; with 4 employees, $402K annual revenue, and 50% YoY growth, serving clients worldwide from New Zealand to the UK.
Black Cell
Hungary-based IT services and cybersecurity firm specializing in penetration testing, red teaming, adversary simulation, and cloud security; 32 employees with 35.9% YoY growth, founded in 2010, headquartered in Budapest, Hungary. Provides end-to-end cybersecurity assurance through its Fusion Center, with a focus on security operations, compliance, and ICS/OT security.
Ukatemi Technologies
Cybersecurity company based in Budapest, Hungary, specializing in IT and OT security solutions; provides penetration testing services with a focus on vulnerability detection and security posture assessment; headquartered at 48 Soroksári út, Budapest.
Zero IT Lab
Zero IT Lab is a Hungarian IT services and cybersecurity firm founded in 2016 with 8 employees; specializes in penetration testing, red teaming, and reverse engineering to enhance IT security; headquartered in Budapest, Hungary, with 580 monthly website visits.
Vendito
Cybersecurity company specializing in vendor- and tool-agnostic IT security engineering; offers penetration testing services; based in Szekszárd, Hungary with 3 employees.
Danubius It Solutions
Hungary-based cybersecurity firm specializing in penetration testing and red teaming; headquartered in Budapest, Hungary, with a focus on security assessments and testing services.
SecureSpace.ie
Irish IT services and cybersecurity broker specializing in penetration testing, red teaming, and managed detection; 4 employees with 100% YoY growth, founded in 2022, based in Dublin, Ireland, with over 100 projects completed securing 50,000+ endpoints.
Penteor
Cybersecurity consulting firm specializing in penetration testing, red teaming, and adversary simulations; 11 employees; Founded 2005; Dublin, Ireland; Serves banking, energy, healthcare, government, retail, and education sectors.
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.