Find a pentest company offering Penetration Testing
5149 companies offer this service
Cybercy Group
Cybercy Group is a UK-based cybersecurity firm headquartered in Solihull, specializing in AI-enhanced security and data protection solutions; it explicitly offers penetration testing services, including CREST-certified pentest capabilities, serving public and private sector organizations.
Purecyber Limited
UK cybersecurity firm based in Cardiff; provides penetration testing, red teaming, and threat detection services; CREST-certified penetration testing capability; trusted by organizations worldwide.
Interfuture Security Ltd
UK-based cybersecurity firm providing digital security services including penetration testing, managed SOC, incident response, and security assessments; registered at Unit C Kemps Farm Business Park, Balcombe, West Sussex, UK; offers explicit pentest services as indicated on their homepage.
Data Connect Group
UK-based cybersecurity firm specializing in penetration testing; offers CREST-accredited services with a dedicated testing page and detailed FAQs; headquartered in Harrogate, West Yorkshire, with registered office in West Yorkshire.
EY
Global professional services firm based in London, UK, with 279,628 employees and $51.2B revenue; offers advisory, assurance, tax, financial, and cybersecurity services including penetration testing and red teaming; competes with Deloitte and Accenture; active in public sector initiatives and social media.
Rmg Cyber
Cybersecurity firm based in Lincolnshire, UK; offers penetration testing, auditing, cybersecurity training, risk management, cloud security, and software development services; specializes in web application pentesting with a focus on identifying vulnerabilities and providing remediation.
Cyber Security Specialists
Cyber Security Specialists is a UK-based private cybersecurity consultancy specializing in security consultancy, managed security services, and CREST-accredited penetration testing; 15 employees with 29.6% YoY growth; offers enterprise security architecture, information security, cloud security, security testing, and third-party assurance services.
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SSL247 (A Sectigo Company)
UK-based private IT security firm founded in 2003; provides web security, SSL, PKI, and penetration testing services; 19 employees, $5M revenue; operates in 18 markets globally; offers certified pentest services, security audits, incident response, and digital identity solutions; ranked #2,692,341 globally and #271,928 in the UK.
Goaco
UK-based cybersecurity consultancy specializing in penetration testing; offers internal/external pentest services and delivers secure, innovative cybersecurity solutions. Registered in the UK with offices in Ebbsfleet/Northfleet and Scotland; recognized for its trusted expertise in cyber security testing.
Kumoco
UK-based consulting firm specializing in telco digital transformation; offers cybersecurity services including vulnerability assessments and penetration testing with at least annual pentest activity; headquartered in London, UK.
Sytec
UK-based cybersecurity and IT support provider; offers penetration testing, vulnerability scans, and cybersecurity assessments; operates from Salisbury, England; domain is .co.uk, confirming UK registration.
Fortis DPC Limited
UK-based cybersecurity consultancy specializing in GDPR, ISO, PCI DSS compliance, and penetration testing; headquartered in Surrey with verified addresses in Guildford and Downside; offers online penetration testing services conducted by expert teams.
KPMG
Global professional services firm specializing in accounting, advisory, and consulting; 47,522 employees, $36B revenue, headquartered in London, UK; offers penetration testing services with CREST accreditation, serving multiple industries and markets.
Css Assure
UK-based cybersecurity firm specializing in security & compliance, including penetration testing, data protection, and certification programs; registered at No.1 Colmore Square, Birmingham, UK, as Cyber Security Strategies Ltd (Company No. 11070817). Offers technical services such as vulnerability scanning and penetration testing, with dedicated pages and blog content highlighting their expertise.
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CybaVerse
Cybersecurity consultancy specializing in penetration testing, compliance, and training; 34 employees with 41.4% YoY growth; based in Portsmouth, UK; founded 2018; secured $3.3M in funding; CREST-accredited for pentest services; offers 24/7 coverage and an all-in-one cybersecurity platform.
Cyber Tzar
Cyber Tzar Limited is a UK-based cybersecurity firm specializing in enterprise supply chain risk management; offers penetration testing services including Pen Test as a Service and Automated Penetration Testing, with headquarters in London, UK.
CCS IT Solutions
UK-based IT services and consulting company founded in 2004; provides IT support, cybersecurity, penetration testing, vulnerability scanning, and disaster recovery services; 4 employees; focuses on improving operational maturity and security for UK businesses.
Spritzmonkey
Cybersecurity consultancy based in the United Kingdom; specializes in CREST-certified penetration testing and vulnerability scanning services, actively marketing these capabilities and participating in industry events as a recognized provider.
INTEX IT
IT services and consulting company specializing in information security; provides penetration testing, security audits, data protection, PCI compliance, and security awareness training; based in Chatham, UK, founded 2002, with 2 employees; focuses on security consultancy and compliance services.
The SecOps Group (Creators of PentestingExams.com)
UK-based private cybersecurity firm specializing in penetration testing and security assessment; 30 employees with 17.6% YoY growth; offers external/internal network, mobile app, and web application pentests; recognized for cybersecurity consultancy and education services; active in industry events and social media.
Cybernitics
Cybernitics is a UK-based cybersecurity firm specializing in offensive security, including red teaming and penetration testing; it offers attack simulations and threat emulation services to help organizations identify vulnerabilities.
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.
AnchorSec
Cybersecurity company specializing in offensive cyber security and penetration testing; $21.4M annual revenue with +200% YoY growth, 2 employees; founded 2022; Manchester, UK; offers infrastructure penetration testing and vulnerability research to identify and address security vulnerabilities proactively.
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Intersect
Cybersecurity company headquartered in Manchester, UK; specializes in penetration testing and security assessments, offering simulated real-world attack services to identify vulnerabilities.
DCR Partners | Digital | Change | Risk
UK-based business consulting firm specializing in digital transformation, change management, and cyber risk; offers CREST-accredited penetration testing services across network, web, mobile, wireless, and social engineering domains; 11 employees with 27.3% YoY growth, founded in 2014, headquartered in Leeds, UK.
D2NA
IT services and consulting firm specializing in cybersecurity; offers penetration testing, cyber security solutions, and expert advice; based in Stoke-on-Trent, UK, with 24 employees and over 20 years of experience.
Siber Ninja
Cybersecurity company specializing in offensive security and penetration testing; 4 employees with 25% YoY growth; founded 2015; headquartered in London, UK.
River Oakfield
Cybersecurity and investigations company specializing in penetration testing, red teaming, and adversarial simulation; based in London, UK, founded in 2017, with 4 employees and a 28.6% YoY decline in growth.
Arculus Cyber Security
Cybersecurity and compliance firm based in London, UK; provides penetration testing, security architecture, compliance, and risk management services; 6 employees with 52.9% YoY decline; specializes in cyber essentials, SOC 2, and cyber readiness assessments; Bridewell company.
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Secure Debug
Cybersecurity company specializing in penetration testing and security solutions; 4 employees with -22.2% YoY growth; founded 2019; Cranfield, UK; provides expert cybersecurity services including penetration testing, cyber security solutions, and comprehensive security to protect businesses from cyber threats.
Intrinsic Security
Cybersecurity company specializing in penetration testing, threat detection, and incident response; 19 employees with 71.4% YoY growth; founded 2023; based in Peterborough, UK; offers vulnerability management, cyber threat intelligence, and attack surface management.
Xalient
IT services and consulting company specializing in modern networking, security, and communications; 205 employees (+22.8% YoY growth), $45.3M revenue; offers penetration testing services; founded 2015; headquartered in Leeds, UK.
Sovereign Secure Ltd
UK-based IT services and consulting company specializing in PCI DSS compliance, security assessments, and penetration testing; 10 employees with 25% YoY growth, founded in 2012, with global offices in the UK, US, Singapore, and Middle East; provides API, web, network, cloud, and cybersecurity testing services.
Sentry
Boutique offensive security firm providing managed security services, penetration testing, and continuous defense for organizations that cannot afford uncertainty. Active CVE contributor with disclosed vulnerabilities in Apple iOS and other platforms.
Desec Security
Desec Security is a Brazil-based private cybersecurity firm specializing in offensive security, including penetration testing, consulting, and training. Founded in 2015 and employing 23 staff, it offers comprehensive security solutions with a focus on identifying vulnerabilities and educating professionals. The company maintains a web presence with 35,904 monthly visits and a global rank of #732,756.
HackerSec
HackerSec is a Brazilian cybersecurity company specializing in penetration testing and offensive cybersecurity; with 21 employees (+1.5% YoY growth), founded in 2011, headquartered in Barueri, São Paulo, Brazil. The company is a national reference in cybersecurity, providing top-tier services globally, with a focus on pentest services as detailed on their website and blog.
VSec
Cybersecurity company specializing in penetration testing, offensive security, and red team operations; founded in 2020 in Brazil with 4 employees and +66.7% YoY growth; provides services such as vulnerability assessments, security audits, and threat intelligence.
SPQR - Information Technology Security Specialist
IT services and consulting company specializing in cybersecurity; provides penetration testing, security gap analysis, and management of security infrastructure; $26.2M annual revenue, founded 2008, based in Rio Claro, Brazil, with 2 employees.
Vantico
Cybersecurity firm specializing in penetration testing; offers a Penetration‑testing as a Service (PtaaS) platform that modernizes traditional pentest methods; based in São Paulo, Brazil, with a focus on manual and advanced intrusion testing for organizations.
Access Security
IT Services and IT Consulting company specializing in cybersecurity; 13 employees with 33.3% YoY growth, founded in 2018 in Barueri, Brazil. Provides penetration testing, vulnerability management, and security consulting services, with active content on pentesting and compliance.
Site Blindado S.A. (uma empresa Conviso)
Cybersecurity firm specializing in penetration testing and website protection; 8 employees; $1M-$5M revenue; founded 2005 in São Paulo, Brazil; offers pentest, SSL, and cybersecurity services; protected over 5,000 sites including major Brazilian companies.
Ponto de Equilíbrio
Cybersecurity company specializing in penetration testing and blockchain security; 4 employees with 33.3% YoY growth; based in Brazil with a .br domain and 963 monthly visits; focuses on secure systems, cloud security, and cybersecurity trends.
eSecurity - Cyber Security
Cybersecurity company specializing in penetration testing, vulnerability analysis, and cybersecurity consulting; 10 employees, founded 2012, headquartered in São Paulo, Brazil; focuses on offensive security, intrusion testing, and risk management.
AVUL
Cybersecurity company specializing in penetration testing, risk assessment, and consulting; based in São Paulo, Brazil, with 2 employees since 2019, focusing on digital resilience and cybersecurity services aligned with NIST standards.
VirtuaWorks | Cibersegurança
Cybersecurity company specializing in penetration testing of web and mobile applications; 5 employees with +100% YoY growth; based in São Paulo, Brazil; offers tailored security assessments, red team, bug bounty, and OSINT services to safeguard client systems and reputation.
p1 Infosec
Cybersecurity company specializing in penetration testing services; based in Londrina, Paraná, Brazil; focuses on identifying vulnerabilities in technology environments.
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.
Intrusion Cyber
Intrusion Cyber is a Brazil-based private cybersecurity company specializing in penetration testing, incident response, and security assessments. With a team of 4 security experts, it emphasizes manual, hacker-style pentest methodologies; 479 monthly website visits; and a global rank of #2,889,699.
Mercado Tatais
Cybersecurity firm specializing in penetration testing, secure software solutions, and ethical hacking; 3 employees with 100% YoY growth; headquartered in Brazil; offers services including penetration testing, front-end and backend development.
Netglobe Cyber Security
Cybersecurity firm offering penetration testing services with detailed methodologies based on MITRE ATT&CK and OWASP; headquartered in Campinas, São Paulo, Brazil, with a focus on people, processes, and technologies.
QuimeraX Intelligence
Cybersecurity company specializing in penetration testing, attack surface management, and risk identification; 3 employees in Brazil, founded 2024, with +300% YoY growth. Offers proactive threat detection and customized security solutions.
BNF Cyber Security
Cybersecurity company specializing in penetration testing, detection and response, cloud security, and vulnerability management; founded in 2020, based in Rio de Janeiro, Brazil, with 4 employees and 700% YoY growth.
Vulneri Segurança Digital
Cybersecurity company specializing in penetration testing and vulnerability management; founded in 2023, with 3 employees and 25% YoY growth; based in São Paulo, Brazil; offers security-focused cloud platform and services, emphasizing attacker-like vulnerability analysis and risk mitigation.
SEK Security Ecosystem Knowledge
Cybersecurity and business consulting firm specializing in penetration testing; 262 employees with 293.5% YoY growth; founded in 1999; headquartered in Barueri, Brazil; active in Latin America with a focus on cybersecurity services.
Kryptus SA
Brazilian cybersecurity company founded in 2003 in Campinas, with 126 employees and $3.7M funding; specializes in secure, customizable cybersecurity solutions including penetration testing, vulnerability assessments, and digital certificate management; 9.7% YoY growth, 3.6/5 employer rating, competing with firms like ccs and security matterz.
Selo Virtual
Facilities services company providing cybersecurity consulting, penetration testing, risk assessment, security audits, and strategic consulting; headquartered in Brazil with a .com.br domain.
Critical Security - Brasil
Cybersecurity company specializing in penetration testing and vulnerability management; 5 employees with -12.5% YoY growth; based in Brasilia, Brazil; offers invasion testing, professional services, and identity management.
TechBiz Forense Digital
Brazilian IT services and consulting company specializing in digital forensics, information security, anti-fraud, and audit; provides penetration testing services as a core capability; 99 employees (+11.4% YoY growth); founded 2005; operates primarily in Brazil.
Intryd Segurança Informática Ltda
Cybersecurity company specializing in penetration testing, web security, and database hardening; founded in 2003, with 2 employees, headquartered in Rio de Janeiro, Brazil, and active in categories such as computer security, pentesting, and AI.
Protect Data
Data security software company founded in 2023 and based in Brasília, Brazil; specializes in compliance, cybersecurity, and data privacy solutions with a focus on penetration testing, consulting, and patent registration; small team of 2 employees with a 50% monthly workforce decline; 59 monthly website visits.
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SmartCyber
Brazilian cybersecurity firm based in Rio de Janeiro; provides penetration testing services including simulated attack scenarios to identify vulnerabilities; emphasizes proactive threat prevention, monitoring, and anticipation to foster client trust.
Sempre Safe
Cybersecurity consulting firm based in São Paulo, Brazil; specializes in penetration testing, security assessments, and Red Team simulations; offers innovative digital protection solutions with certified experts.
Alus It Security
Brazil-based cybersecurity company in São Paulo; specializes in penetration testing services with professional attack simulations to identify vulnerabilities.
Wolf Security
Cybersecurity company specializing in digital security solutions, including penetration testing, security protocols, and technical support; based in Brasília, Brazil, with 2 employees and 25% annual growth since 2016.
Conexão Internet & Multimidia
Conexão Internet & Multimidia is a Brazil-based private telecommunications company with 3 employees, specializing in cybersecurity and penetration testing services; it provides end-to-end data and reputation protection solutions, with 9,778 monthly visits and a global rank of #1,726,405.
CYLK Technologing
Brazil-based IT services and consulting company specializing in innovative solutions for cost reduction, risk mitigation, and agility; 33 employees with 12.8% YoY growth; $5M-$25M revenue; offers penetration testing services supporting offensive security and automated vulnerability assessments across applications, mobile apps, APIs, and infrastructure.
First Tech Tecnologia
Brazilian cybersecurity firm based in São Paulo; provides penetration testing, vulnerability analysis, and security assessment services for digital payments and assets; serves banks, acquirers, and financial institutions.
Vertros Technology and Security
Cybersecurity company headquartered in São Paulo, Brazil, offering penetration testing services; explicitly listed on their website and related pages, demonstrating their focus on offensive security capabilities.
Safeup Cybersecurity
Brazil-based cybersecurity company specializing in penetration testing and vCISO services; offers security maturity, risk management, and compliance solutions, including incident response and policy development; explicitly provides penetration testing to identify vulnerabilities.
CyKairos Inteligência Cibernética
Cybersecurity company specializing in proactive resilience, threat intelligence, and penetration testing; based in Rio de Janeiro, Brazil, founded in 2022, with 2 employees and -50% YoY growth; offers offensive security services including pentest, red team, and blue team.
Ib Cyber Security
Brazil-based cybersecurity company headquartered in São Paulo; founded 2022 with 3 employees; specializes in penetration testing, vulnerability analysis, and cybersecurity training, offering Israeli-origin solutions for enterprise security.
Cromisoft
Cybersecurity company headquartered in São Paulo, Brazil, offering security solutions including penetration testing; combines technology, processes, and personnel to enhance business security with a focus on vulnerability assessment and preventive checks.
Securite Soluções em Tecnologia da Informação Ltda
Brazilian IT company based in Rio de Janeiro; specializes in cybersecurity, including penetration testing services that identify vulnerabilities through simulated attacks, focusing on risk reduction and security enhancement.
Trtec
Brazilian cybersecurity firm headquartered in São Paulo; provides penetration testing, offensive security, BAS, CTEM, and automated attack protection with 24/7 SOC support.
Next4sec Security Intelligence
Brazil-based cybersecurity firm specializing in penetration testing; offers comprehensive pentest services including vulnerability assessment and attack scenario testing; located in São Paulo with a Brazilian address and phone number.
L4sec Segurança Da Informação
Cybersecurity firm headquartered in Curitiba, Brazil, specializing in penetration testing and vulnerability analysis; offers services such as vulnerability exploitation, security assessments, and attack simulations. Based in Brazil with a focus on security consulting and testing.
Globalsec Tecnologia
Brazil-based cybersecurity firm headquartered in Brasília, DF; provides penetration testing and breach simulation services using Cymulate technology; operates across multiple Brazilian regions with registered CNPJs in Brasília, São Leopoldo, and São Paulo.
Clavis Segurança da Informação
Brazil-based cybersecurity firm specializing in information security consulting and pentest services; 142 employees (+6.3% YoY growth), $4.2M annual revenue, founded 2004, headquartered in Rio de Janeiro. Offers services including vulnerability assessments, security audits, threat intelligence, and security operations.
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.
Ogasec
Brazil-based cybersecurity company specializing in penetration testing and vulnerability analysis; offers advanced pentest services simulating real-world attacks to identify security weaknesses across Brazil.
NetSecurity
NetSecurity is a cybersecurity firm headquartered in São Paulo, Brazil, providing penetration testing (pentest) and security consulting services; they explicitly market penetration testing and intrusion testing services, including offerings on AWS Marketplace, highlighting their focus on security testing and consulting.
PRIDE Security
PRIDE Security is a Brazil-based cybersecurity company specializing in computer and network security; with 14 employees and 25% YoY growth, it offers penetration testing, vulnerability assessments, security audits, and R&D services, focusing on intrusion testing, red team exercises, and security configuration evaluations.
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.
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DM11 [IT Risk Protection]
Brazilian IT risk protection company providing cybersecurity, compliance, and business continuity services; offers penetration testing via EHaaS with network, API, cloud, and mobile testing; 11 employees; founded 2009; headquartered in São Paulo, Brazil.
BRZTEC
BRZTEC is a Brazil-based private cybersecurity firm founded in 2016, specializing in offensive security and penetration testing; with 5 employees and 25% YoY growth, they focus on identifying vulnerabilities using hacker techniques across sectors such as automotive, logistics, and laboratory automation.
Conviso Application Security
Cybersecurity company specializing in application security; 55 employees with 3.9% YoY growth; based in Curitiba, Brazil; offers penetration testing, offensive security, and red-team services, with over 16 years of experience serving financial institutions and global clients.
Raidbr
Raidbr is a Brazil-based IT services and consulting firm specializing in outsourcing, cloud solutions, LGPD compliance, and security testing, including penetration testing services; with 20 employees, $413.1K annual revenue, founded in 2002, and recognized as a regional leader in security and technology.
Oi
Brazilian telecommunications company with 4,517 employees, $1.8B revenue, and $300M funding; offers digital solutions including cybersecurity, cloud, AI, IoT, and big data; provides penetration testing services as part of its cybersecurity portfolio; headquartered in Rio de Janeiro.
ESCS - ESyner Cyber Security
Brazilian cybersecurity company specializing in information security, data privacy, and penetration testing; headquartered in São Paulo, with services including PEN Test and secure remote work solutions, supported by a highly qualified team.
Solyd Offensive Security
Brazil-based cybersecurity company specializing in offensive security and penetration testing; offers online courses in hacking, Python, and security with practical exercises; 16 employees (+8.1% YoY growth); provides pentest services via Solyd Hunter platform; founded in 2015; global rank #683,887 with 37,107 monthly visits.
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.
Dfense
Brazil-based cybersecurity firm in São Paulo; offers penetration testing services including real attack emulations and reduced pentests; registered as Dfense Security Tecnologia da Informação S.A. with CNPJ 29.559.799/0001-32.
Data Guide
Brazil-based private IT & Services company founded in 2020; 19 employees with 22.2% YoY growth; specializes in data protection, privacy compliance (LGPD, GDPR), and offers DPO-as-a-Service, Security-as-a-Service, and penetration testing services for web, mobile, API, and network systems; 1,699 monthly website visits; ranked #5,715,591 globally.
4t3 Security
Brazil-based cybersecurity consultancy with over 20 years of experience; specializes in penetration testing services to identify and fix vulnerabilities; headquartered in São Paulo, Brazil; website in Portuguese emphasizes reliability and high-quality security solutions.
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.
Tenchi Security
Tenchi Security is a Brazil-based cybersecurity firm founded in 2019, specializing in third-party risk management, privacy, and penetration testing services; 55 employees with 17.3% YoY growth, $3.5M annual revenue, and $10.3M in total funding, last raised in Series A in 2024. It is recognized in Gartner’s Market Vendor Guide and operates in categories including cybersecurity, TPRM, cloud security, and DevSecOps.
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.
CASCO
CASCO is a computer and network security company specializing in offensive security services such as web pentesting, reverse engineering, red team operations, and vulnerability analysis; based in Rio de Janeiro, Brazil, founded in 2024, with 4 employees and +100% YoY growth.
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.
Stefanini Group
Brazilian multinational business consulting and digital solutions provider; 4,415 employees with 7.8% YoY growth, $1.4B revenue; offers digital transformation, AI, cybersecurity, and penetration testing services, with explicit emphasis on ethical hacking and vulnerability discovery.