Find a pentest company offering Offensive Security
95 companies offer this service
Difenda (acquired by Quorum Cyber)
Difenda is a cybersecurity firm based in Goodyear, Arizona, specializing in professional and managed security services, including offensive security and vulnerability management; 16 employees, founded in 2008, with a -71.4% YoY growth, focusing on cyber risk, compliance, and threat intelligence.
durakiconsulting, LLC
durakiconsulting, LLC is a private IT & Services firm specializing in penetration testing and vulnerability research; based in San Francisco, CA, with 4 employees and 75% YoY growth since 2020. The company offers comprehensive, licensed, and certified security assessments, serving clients in finance, investment, and Egyptian stock market sectors.
Greenlight Cyber
Cybersecurity company specializing in comprehensive security solutions and active penetration testing; based in Irvine, California, with 11 employees, $5.7M revenue, and +28.6% YoY growth. Offers services including internal and external network penetration tests, supporting SMBs in digital security.
Deepseas
Cybersecurity company based in Denver, Colorado; provides managed detection and response (MDR) services with a 24/7 team of cyber experts; offers penetration testing (pentest) services through offensive security, emphasizing active attack simulation and vulnerability assessment.
Dreadnode
Cybersecurity company specializing in offensive security and penetration testing; headquartered in New Castle, Delaware, USA; focuses on red teaming, AI-driven offensive agents, and vulnerability testing, with active promotion of pentest services and offensive security capabilities.
Compuquip Cybersecurity
Compuquip Cybersecurity is a private cybersecurity company specializing in computer and network security solutions; 51 employees with a -7.2% YoY growth, $7M annual revenue, founded in 1980, headquartered in Miami, Florida. The firm offers penetration testing, cybersecurity consulting, and cloud security management, serving enterprise clients with a global rank of 3,446,568 and a local rank of 1,878,251.
Orenda Security LLC
Cybersecurity company specializing in offensive security and penetration testing; CREST-accredited with 2 employees, founded in 2017, headquartered in Orlando, Florida, offering network, application, cloud, mobile, IoT security, and PCI DSS assessment services.
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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.
4D Solutions Group
IT services and consulting company specializing in cybersecurity, managed IT, and offensive security; 2 employees, founded 2025, headquartered in Sarasota, Florida, USA • Offers penetration testing and proactive threat defense for small to mid-sized businesses; rapid 100% monthly workforce growth.
Abira Security
Abira Security is a cybersecurity-focused IT services and consulting company based in Chicago, Illinois, founded in 2019. With 16 employees and 23.1% YoY growth, they offer penetration testing, cloud security, and breach avoidance services, emphasizing professional expertise and reliability in digital security solutions. The firm maintains active social media and industry engagement, recently collaborating with Great American Insurance Group to strengthen cyber risk management.
Oxen Technology
Iowa-based cybersecurity firm headquartered in Harlan, Iowa; specializes in penetration testing, offensive security, red teaming, vulnerability discovery, and simulated attack campaigns, with partnerships for offensive security services.
Shield 7 Consulting
Cybersecurity consulting firm specializing in penetration testing, security assessments, system integration, and malware forensics; 6 employees, founded 2012, based in Columbia, Maryland, USA; Veteran Owned; offers dedicated penetration testing services with a focus on network security and malware analysis.
SIXGEN
Cybersecurity firm specializing in penetration testing services; headquartered in Annapolis, Maryland, United States • Focuses on offensive security and vulnerability assessments, actively providing pentest services as evidenced by job postings and service descriptions.
NetWorks Group
NetWorks Group is a Michigan-based private cybersecurity company specializing in computer and network security, with 16 employees and $30.7M annual revenue. Founded in 1997 and headquartered in Ann Arbor, MI, it offers penetration testing, ethical hacking, managed security solutions, and PCI compliance, emphasizing high-quality pentesting services supported by dedicated data sheets and homepage references.
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Core Security
Cybersecurity firm providing penetration testing services, security testing tools, and consulting; based in Eden Prairie, MN, USA; offers products like Core Impact and Cobalt Strike; part of Fortra.
Cyber Advisors
Cyber Advisors is a private IT services and consulting company specializing in cybersecurity, with 133 employees (+54.1% YoY growth), $22M annual revenue, founded in 1997 and headquartered in Maple Grove, Minnesota. They provide comprehensive cybersecurity solutions including penetration testing, offensive and defensive security, and risk management services, confirmed by explicit offerings on their website. The firm recently acquired Wasatch Software and is recognized as a nationwide leader in cybersecurity, serving businesses of all sizes across the US.
Cybersafe Solutions
Cybersecurity company specializing in managed detection and response (MDR) and offensive security services; headquartered in Melville, NY, United States; provides penetration testing, threat research, and ransomware analysis.
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.
SEVN-X
Cybersecurity company specializing in penetration testing, vulnerability management, and security training; 13 employees with 13.3% YoY growth; founded 2020; based in King of Prussia, Pennsylvania, USA; offers customized cybersecurity solutions with expert reporting and hands-on training.
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.
StandardUser Cyber Security
Cybersecurity company specializing in penetration testing, vulnerability assessments, and cybersecurity education; 5 employees, founded 2014, based in Dallas, Texas, with a focus on SMBs, MSPs, and industrial control sectors; provides both defensive and offensive cybersecurity services and highly technical cyber education.
Wiresolve
Cybersecurity firm specializing in offensive security and penetration testing; based in San Antonio, Texas, with a focus on red team services and incident response.
Mandiant
Cybersecurity consulting firm headquartered in Dallas, Texas; provides penetration testing services including web, cloud, and internal/external assessments; part of Google Cloud's security offerings.
Innet
Texas-based cybersecurity company headquartered in Frisco, specializing in penetration testing and offensive security services; offers automated, real-world pentest solutions and ethical hacking capabilities to enterprise clients.
McCormack Cyber Solutions, LLC
Cybersecurity company specializing in offensive security and penetration testing; based in Richmond, Virginia, with 1 employee, founded in 2021, offering web, API, mobile, and network security assessments; 472 monthly website visits.
PwC Belgium
PwC Belgium is a private accounting and professional services firm headquartered in Diegem, Belgium, with 1,293 employees and a -5.2% YoY growth. The company offers audit, tax, consulting, legal, and HR services, and explicitly provides penetration testing, including Threat-Led Penetration Testing, Managed Penetration Testing, and AI Red Teaming, highlighting its capabilities in offensive security.
PriorityZero
Cybersecurity company specializing in offensive security and penetration testing; founded 2021 in Sofia, Bulgaria; 2 employees with 100% YoY growth; offers ethical hacking, security audits, compliance, and system implementation services, with expertise in web, API, and network penetration tests.
Cyber360
Cyber360 is a Bulgaria-based cybersecurity firm headquartered in Sofia; it specializes in penetration testing, offensive security, and infrastructure testing, serving clients with external security assessment services.
Infigo IS
Croatian cybersecurity company based in Zagreb; provides managed security services including SOC management; offers penetration testing and red team exercises, emphasizing offensive security and vulnerability testing.
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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.
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.
Dubex - Part of Conscia
Cybersecurity firm based in Glostrup, Denmark, founded in 1997; specializes in risk management, cyber defense, and penetration testing services, with 46 employees and $12M annual revenue; experienced a -26.3% YoY growth, with a focus on comprehensive security solutions and market leadership in Denmark.
Truesec
Cybersecurity company specializing in penetration testing, offensive security, and IT infrastructure security; 261 employees, $6.6M revenue, founded 2005, headquartered in Denmark with offices in Copenhagen and Aarhus; active in vulnerability assessments, security workshops, and penetration testing services, with a global rank of #466,152.
OMVAPT
OMVAPT is a private computer and network security firm based in Tallinn, Estonia, founded in 2016; specializing in vulnerability assessment and penetration testing (VAPT) with a team of 4 employees. The company provides penetration testing services, focusing on offensive security, vulnerability management, and digital forensics, and actively engages in recent industry activities.
OMVAPT
Estonia-based cybersecurity firm specializing in penetration testing and vulnerability assessments; offers advanced offensive security services including Purple Hat and Black Hat testing; headquartered in Tallinn, Estonia, with a focus on risk mitigation and data security.
Pwn & Patch
Cybersecurity firm specializing in penetration testing and vulnerability assessments; based in France with official address at 45 Rue Cecile Duparc, Bezons, France • Provides offensive security services including pentest and vulnerability assessments.
Bsecure
Cybersecurity consulting firm based in Paris, France; specializes in penetration testing, offensive security, OT cybersecurity, and managed services; founded in 2009; 25 employees; 6.5% monthly growth; website: https://www.bsecure.fr
AVA6
IT services and consulting company based in France; specializes in digital transformation, infrastructure, systems, networks, hosting, and cybersecurity; offers IT solutions, maintenance, and infogérance services; provides penetration testing (pentest) including internal/external tests and attack simulations.
Tehtris
Cybersecurity company headquartered in France; provides penetration testing and offensive security services, including red-team exercises and configuration auditing, with active content on threat intelligence and security operations.
Advens
Cybersecurity firm based in Paris, France, providing penetration testing, risk management, compliance, and security technology services; specializes in offensive security with PASSI-certified intrusion testing, serving clients across various sectors.
DataProtect
DataProtect is a France-based cybersecurity firm specializing in penetration testing and offensive security services; headquartered in La Défense, Puteaux, with SIREN 823603568. The company offers ethical hacking, security assessments, and CyberSOC/CSIRT solutions, focusing on active security testing and threat simulation.
Advens
Advens is a French cybersecurity firm specializing in computer and network security, with 441 employees and $24.6M annual revenue. Founded in 2000 and headquartered in Paris, they actively provide penetration testing, red team operations, and security consulting, positioning as a leading independent security provider in Europe.
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.
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.
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.
Smarttech247
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.
Conscia Ireland
Cybersecurity company specializing in offensive security services including penetration testing and red teaming; Irish-registered entity Conscia Limited based in Dublin 8, with explicit pentest offerings in Ireland.
Talorik Security
Cybersecurity company specializing in offensive security and threat intelligence; offers penetration testing and red team services; founded 2025; headquartered in Taranto, Italy.
NSI Advisor SRL
Italian ICT company based in Legnano, Lombardy, specializing in Cloud, Data Center, Networking, and Security solutions; provides penetration testing, vulnerability assessment, and Red Team security testing services.
HWG Sababa
HWG Sababa is an Italy-based cybersecurity firm specializing in customized security solutions and offensive security services, including penetration testing for PLCs and Arduino; 130 employees with 36.3% YoY growth, EUR9.7M revenue, EUR31.7M market cap, founded in 2008, with a global presence in over 20 countries.
bitCorp
Italy-based cybersecurity firm specializing in penetration testing and Red Team operations; employs dedicated engineers and researchers for offensive security, vulnerability assessment, and cyber defense strategies.
Sorint.SEC
Cybersecurity company based in Italy; provides penetration testing, incident response, and managed security services; 80 employees with 34.1% YoY growth; founded 2014; part of Sorint.LAB; focuses on threat detection, security visibility, and rapid support.
Kōkishin
Cybersecurity firm based in Bologna, Italy, with 7 employees; specializes in penetration testing, incident response, digital forensics, offensive and defensive security, vulnerability management, and cloud security; offers innovative, non-traditional approaches with a global team focus; 33.3% monthly growth and 352 monthly web visits.
7Layers
Cybersecurity company specializing in computer and network security solutions; 76 employees with 7.0% YoY growth, $10M revenue, founded 2012 in Torino, Italy. Provides penetration testing, incident response, managed security, and cloud security services, competing with firms like informzashchita and ensign infosecurity.
Trinity Labs
Italian cybersecurity firm based in Milan; provides penetration testing and red team services, with a registered office at Piazza IV Novembre 4, Milan, Italy, and an Italian VAT number (P.IVA 14167650960).
ACTARVS s.r.l
Cybersecurity company based in Italy; specializes in penetration testing, red teaming, and vulnerability simulation with 3 employees and +50% YoY growth; founded in 2019.
Bourbon Offensive Security Services
Cybersecurity company based in Luxembourg; specializes in penetration testing, attack vector analysis, and impact validation with a pragmatic, offensive security approach. Founded in 2025, operates with 1 employee, focusing on real-world security solutions.
ObsidianCorps
Luxembourg-based technology and cybersecurity firm specializing in comprehensive security solutions, including penetration testing and offensive/defensive security services; operates from Differdange with a focus on resilient system building for modern enterprises.
Hacknowledge Sa
Luxembourg-based cybersecurity company specializing in penetration testing; part of Swiss Post Cybersecurity, offering simulated targeted attack services and security assessments; rebranded from Hacknowledge Lux SA, with confirmed Luxembourg office at 9 Rue du Laboratoire, 1911 Luxembourg.
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Podictive IT Security & Advisory services
Cybersecurity and IT advisory firm based in Amsterdam, Netherlands; founded in 2006; 4 employees with 20% YoY growth; specializes in cyber defense, penetration testing, vulnerability scanning, malware analysis, and risk management; competes with s-generation, Heartland Business Systems, and Eye Security.
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.
Romanian cybersecurity consortium led by certSIGN supporting EU NIS2 compliance
Romania-based cybersecurity consortium led by certSIGN; includes members like Bit Sentinel and CybrOps offering penetration testing and offensive security services; supports EU Agency for Cybersecurity under NIS2 Directive.
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.
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.
Cybertik:
IT services and consulting company specializing in offensive security and penetration testing; offers AI-driven cyber warfare simulations and automated threat detection; 2 employees with 100% YoY growth; headquartered in Malaga, Spain.
Cybertix Simulation Technologies
Cybersecurity company specializing in AI-driven automated solutions for SMEs; offers penetration testing, attack simulations, and OT security expertise; 14 employees, founded 2023, based in San Sebastián, Spain; $2.1M funding.
Actalos
IT services and consulting company specializing in security solutions; offers advanced penetration testing and risk analysis services; founded in 2023, headquartered in Göteborg, Sweden; 6 employees with 250% YoY growth.
Truesec
Cybersecurity firm headquartered in Stockholm, Sweden; specializes in penetration testing and offensive security services, including red teaming and simulated attack exercises.
Volkis
Australian offensive cybersecurity consultancy specializing in penetration testing and red team services; headquartered in Sydney, NSW, with a focus on real-world vulnerability identification and defense testing.
Spartans Security
Australian cybersecurity company based in Melbourne; provides penetration testing services for applications, infrastructure, and APIs; officially approved as a MITRE CVE® CNA; headquartered in Cremorne, Victoria, with active focus on offensive security and vulnerability management.
Cxo Security Pty Ltd
Australian cybersecurity firm based in Sydney; specializes in penetration testing, external pentesting, and red teaming services; registered in New South Wales with ABN 14 648 798 618; maintains an AU-specific page (sekuro.io/au).
Infotrust
Infotrust is a leading Australian-based sovereign cyber security and technology provider; headquartered in Sydney, with active ABN registration (73089224402). The company offers comprehensive penetration testing services, including network, web, mobile, cloud, OT/ICS testing, red teaming, social engineering, and phishing simulations, showcasing extensive offensive security expertise.
OTH Security
IT services and consulting company specializing in penetration testing (cloud, on-premise, network, webapp); 6 employees with 50% YoY growth; founded 2018; Vancouver, Canada.
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.
Security Assured Inc.
Security Assured Inc. is a Canadian cybersecurity company specializing in military-grade managed security services; with 2 employees, founded in 2024, based in Brampton, Ontario, they offer penetration testing, threat modeling, risk assessment, and data recovery services, focusing on protecting small and mid-sized businesses from advanced cyber threats.
Control Gap
IT services and consulting company specializing in cybersecurity, offensive security, penetration testing, PCI compliance, data remediation, and forensics; 32 employees, $20.2M revenue, founded 2007, headquartered in Mississauga, Ontario, Canada, serving North America and Europe.
DG Consulting
DG Consulting is a Canadian security and investigations company specializing in penetration testing and offensive security services; with 5 employees, founded in 2015, and a focus on attack simulation, web app, API, cloud, and social engineering assessments, leveraging 25 years of industry experience to empower technical teams and improve cybersecurity.
TELUS
Canadian telecommunications company based in Vancouver; 14,249 employees, $14.1B revenue, $33.1B market cap, and $8.8B in funding. Offers phone, internet, TV services, and cybersecurity penetration testing using a Vumetric-powered platform to simulate real-world attacks and uncover vulnerabilities.
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.
Elastify
IT services and consulting company specializing in security, compliance, and data protection; based in Toronto, Canada, with 23 employees and -10% YoY growth. Provides cybersecurity, offensive security, penetration testing, risk management, and modern infrastructure services.
Perdition Security
Cybersecurity firm headquartered in Toronto, Canada; specializes in penetration testing and security assessments with a focus on offensive security services; actively supports non-profit organizations through a dedicated cybersecurity initiative.
Cyberwell
Cyberwell is a cybersecurity company headquartered in Calgary, Canada, providing penetration testing, red team assessments, and offensive security services; explicitly describes penetration testing and attack simulation capabilities.
Cybercontrols.io
Cybercontrols.io is a UK-based infosec consultancy providing cybersecurity and compliance services, including penetration testing, internal audits, and endpoint security; founded in 2022, with 4 employees and +300% YoY growth, headquartered in Morpeth, UK.
Cynance
Cybersecurity and network security consulting firm based in London, UK; 7 employees with 50% YoY workforce decline; specializes in penetration testing, ethical hacking, and application security testing to identify vulnerabilities and enhance defenses; trusted by organizations across UK, EU, and worldwide.
SnowCap Cyber
UK-based ethical cybersecurity consultancy specializing in offensive security, penetration testing, and red teaming; provides advanced threat emulation, vulnerability research, and cyber attack simulation with a focus on identifying security vulnerabilities.
Trtec
Brazilian cybersecurity firm headquartered in São Paulo; provides penetration testing, offensive security, BAS, CTEM, and automated attack protection with 24/7 SOC support.
Tempest Security Intelligence
Tempest Security Intelligence is a Brazil-based private cybersecurity firm specializing in application security, threat intelligence, and monitoring; with 294 employees, $8.1M revenue, and offices in Recife, São Paulo, and London. The company explicitly offers penetration testing services, conducting manual pentests across web, mobile, APIs, and networks, with tailored engagement questionnaires. It ranks #2,829,666 globally and #196,801 in Brazil, and holds a 4.3/5 employer rating from 237 reviews.
Redbelt Security
Brazil-based cybersecurity company headquartered in São Paulo; specializes in penetration testing services including automated and platform-based pentests, with a focus on security testing and vulnerability assessments.
Aser Security
Brazil-based cybersecurity firm specializing in offensive security and penetration testing; offers vulnerability assessments, mobile pentesting, and CEH-certified services. Headquarters in Goiânia, Goiás, with a focus on network security and risk reduction.
BROTEK
Cybersecurity and IT services provider based in Argentina; offers penetration testing, vulnerability testing, firewall, and zero trust security solutions; 9 employees, $431.7K revenue, founded 2019, headquartered in Argentina.
SAGALID
Cybersecurity company specializing in penetration testing, ethical phishing, incident response, and ransomware simulation; 2 employees; Founded 2013; Providencia, Santiago Metropolitan Region, Chile.
Zerodays
Cybersecurity services provider specializing in penetration testing, proactive cybersecurity, and employee training; based in Lima, Peru, founded in 2022, with 5 employees and 50% YoY growth.
Guayoyo
Cybersecurity company specializing in penetration testing and security solutions; founded in 2016, based in Montevideo, Uruguay, with 4 employees and no recent growth (-30.8% YoY). Offers offensive security services including vulnerability assessments and pentests, confirmed by website and LinkedIn.
Pyxis
Cybersecurity firm based in Montevideo, Uruguay; specializes in penetration testing and offensive security services, including vulnerability assessments and ethical hacking; actively involved in security events like Ekoparty 2025.