Find a Pentest Company in Czechia
There are 86 penetration testing companies in Czechia. 71% are small firms (50 or fewer employees) and 29% are larger organizations.
Pentesty s.r.o.
Cybersecurity company specializing in penetration testing, vulnerability assessments, phishing campaigns, and web application testing; founded in 2022 with 3 employees, based in Czechia, offering external penetration tests and security services.
Trusted Network Solutions
IT security company specializing in data protection, penetration testing, security audits, and risk management systems; 8 employees; founded 2000; headquartered in Czechia. Focuses on high-security firewall solutions and organizational cybersecurity services.
The National CSIRT of the Czech Republic
Cybersecurity organization operated by CZ.NIC in Czechia; provides incident response, cybersecurity projects, and penetration testing services with detailed methodologies and tiered pricing; official domain is .cz, indicating Czech origin.
Privacy Experts
IT services and consulting company specializing in IT security, data protection, and cyber resilience; offers penetration testing, security audits, risk management, and compliance services; 2 employees with -33.3% YoY growth; founded 2018; headquartered in Czechia.
Penterep
Cybersecurity company specializing in penetration testing; founded in 2020, based in Czechia, with 6 employees (+33.3% YoY growth). Offers a comprehensive platform combining manual and automated testing, featuring control lists, tutorials, team collaboration, reports, and automation to enhance testing efficiency and cost-effectiveness.
DoxoLogic, s.r.o.
DoxoLogic, s.r.o. is a Czech private company specializing in computer and network security; founded in 2007 with 4 employees, they provide penetration testing, security monitoring, risk analysis, and cybersecurity solutions. Their categories include penetration testing ('penetrační testování') and cyber security, with 807 monthly website visits, competing with firms like KBR Wyle Services and Lumen Technologies.
Xeek
Cybersecurity company specializing in managed security services, including vulnerability and penetration testing; based in Czechia with 8 employees and -15.4% YoY growth, founded in 2021. Offers cybersecurity risk management, security operations, and forensic services to organizations facing complex threats.
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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.
CSIRT-MU
Cybersecurity team of Masaryk University providing penetration testing services; 27 employees, founded 2009, based in Czechia, first certified security team in Czech Republic, active in research and development, with 7,819 monthly website visits.
Národní Úřad Pro Kybernetickou A Informační Bezpečnost
Czech government cybersecurity agency based in Czechia; provides national cyber and information security services including penetration testing, internal attack simulations, and preventive cybersecurity activities; offers dedicated contact for pentest services at pentest@nukib.cz.
Faster CZ spol. s r.o.
Czechia-based IT services and consulting company specializing in ICT infrastructure, internet connectivity, and cybersecurity solutions including penetration testing; 18 employees, USD 677K revenue, founded 1994, with a focus on quality, affordability, and comprehensive security services.
4cyber S.r.o.
Cybersecurity firm based in Prague, Czechia; provides penetration testing services and simulates real cyber attacks to assess security vulnerabilities.
Guardians.cz
Cybersecurity governance and MSSP based in Czechia; offers penetration testing services supported by staff certifications (eJPT, eCPPTv2); founded 2022; 4 employees; specializes in ISO/IEC 27001 compliance, cloud security, and AI security; 508 monthly website visits.
Auxilium Pentest Labs
Cybersecurity company specializing in penetration testing for embedded, automotive, and industrial systems; 13 employees with 6.3% YoY growth; founded 2019; headquartered in Prague, Czechia; offers expert pentest services including CAN injection attacks and vehicle security.
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Excello
Cybersecurity firm based in Czechia; specializes in penetration testing and vulnerability assessments. Offers controlled cyber-attack simulations and vulnerability scans to identify security weaknesses.
Total Service a.s.
Czech ICT outsourcing and cybersecurity firm based in Prague; provides penetration testing, vulnerability testing, and traffic analysis services to over 150 clients in the public and private sectors, demonstrating expertise in security vulnerability identification and risk management.
Alinet.cz
Alinet.cz is a Czech cybersecurity firm based in Prague, specializing in proactive cyber defense, penetration testing, and threat monitoring. The company holds certifications including CHFI, CEH, ISO 27001 lead auditor, and Microsoft Cybersecurity Architect, and offers services such as penetration testing, threat hunting, and incident response to enhance organizational security posture.
Bezpečný Kód
Cybersecurity company headquartered in Prague, Czechia, specializing in secure application development and penetration testing services; offers web, API, cloud, and mobile app pentests with certified professionals.
T-soft A.s.
Czechia-based IT company specializing in critical information systems and cybersecurity; offers penetration testing services including risk analysis and security implementation; headquartered in Prague, Czechia.
CZ.NIC, Z.s.p.o.
Czech-based cybersecurity organization headquartered in Prague, Czechia; provides penetration testing services including comprehensive network infrastructure reviews with advanced tools and manual checks by security experts, as confirmed by a dedicated webpage on their site.
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.
Cyber Tbd
Cyber TBD is a Czechia-based cybersecurity company specializing in comprehensive digital security solutions, including penetration testing services; confirmed by Czech registration details and explicit service listings in their offerings.
Cyber Rangers
Cyber Rangers is a Czech-based private cybersecurity firm founded in 2019 with 9 employees, specializing in penetration testing, ethical hacking, and security consulting. They provide comprehensive testing, training, and advisory services, explicitly focusing on web and infrastructure pentests; 827 monthly website visits and a global rank of #9,007,945 highlight their niche market presence. The company operates in categories including cybersecurity, vulnerability assessment, and red team operations.
CyberSecurityHubCZ
CyberSecurityHubCZ is a Czech cybersecurity organization founded in 2020 by Czech universities, operating on a .cz domain with Czech-language content. It offers a range of cybersecurity services, including penetration testing ('penetrační testování'), as evidenced by its service catalog and English references to 'penetration testing.'
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.
DCIT, a.s.
IT services and consulting company specializing in cybersecurity; offers penetration testing, risk analysis, GDPR, ISMS, and BCM services; 26 employees; CZK 159.1M annual revenue; founded 1993; headquartered in Czechia; active in information and communication technologies since 1993.
Cbyte S.r.o.
Cbyte S.r.o. is a Czech cybersecurity firm specializing in penetration testing services; it is headquartered in Czechia and focuses on security consulting and testing.
axelum
axelum is a private computer and network security company specializing in penetration testing and adversary-simulation security testing; 9 employees with 33.3% YoY growth, headquartered in Prague, Czechia.
Compunet S.r.o.
Compunet s.r.o. is a Czechia-based IT and cybersecurity service provider specializing in penetration testing and security assessments; offers cybersecurity health evaluations and infrastructure modernization services.
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2k Consulting S.r.o.
Czech cybersecurity firm specializing in penetration testing and ethical hacking; founded 2012, headquartered in Czechia, offering infrastructure, web, mobile, and Wi-Fi security assessments.
Next Generation Security Solutions
Czech cybersecurity company headquartered in Czechia; provides comprehensive information and cyber security services including penetration testing (penetrační testování) for cyber-risk prevention.
Visitech A.s.
Czech cybersecurity company headquartered in Czechia; provides penetration testing services to verify data protection through attack simulations.
Blue Partners s.r.o.
Cybersecurity company based in Czechia; provides penetration testing services including simulated phishing attacks as part of security training packages; headquartered in Czechia; domain: bluepartners.cz
PATRON-IT
PATRON-IT is a Czech private IT & Services company founded in 2011 with 9 employees; specializes in IT security, penetration testing, and cybersecurity solutions to protect businesses from hacking and data breaches. Focuses on reliable IT partnerships, with 585 monthly website visits and a 9.1% monthly growth rate.
TunaSec
Czechia-based IT security organization specializing in security awareness, penetration testing, and security audits; provides services to increase system security and awareness in Czechia.
Dns A.s.
Czech cybersecurity company based in Prague; provides penetration testing services via the Pentera platform, specializing in security assessments and vulnerability testing.
Viavis A.s.
Cybersecurity company based in Czechia; specializes in penetration testing services involving simulated security incident testing to assess vulnerabilities and security measure effectiveness; headquartered in Ostrava, Czechia.
Risk Analysis Consultants
Czech cybersecurity company based in Prague with over 30 years of experience in information security; specializes in penetration testing services, with active capabilities demonstrated through service listings and job postings. Focuses on delivering fast, effective solutions tailored to client needs.
Cesnet
Czechia-based organization specializing in network services and cybersecurity; offers penetration testing services with detailed testing procedures and recommendations; headquartered in Prague, Czechia, at Generála Píky 430/26, 160 00 Prague 6.
TeskaLabs
Cybersecurity software vendor based in Czechia; 13 employees, $2.3M annual revenue, founded 2014, with active penetration testing services including mobile app security audits and code testing; $1.2M funding; specializes in real-time security monitoring, secure communication for smart transport, and advanced cybersecurity products.
RedTeam
RedTeam is a Czech IT security and consulting firm founded in 2023, specializing in penetration testing, attack surface management, social engineering, and attack simulation; with 1 employee, 100% YoY growth, and $15M-$25M annual revenue, they focus on cybersecurity audit services and vulnerability detection.
Boit Cyber Security
Czech cybersecurity company based in Prague; specializes in penetration testing services including testing and simulation of security defenses; headquartered in Vinohradská 184, Prague 3, founded in Czechia.
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.
Integra EMEA
Integra EMEA is a Czech-based IT services and consulting company specializing in cybersecurity, penetration testing, and custom software development; with 43 employees, they focus on personalized, high-quality solutions for IT security and have a strategic role in external IT capacities and cybersecurity training.
Etnetera Core
Etnetera Core is a Czech-based private technology firm specializing in custom web applications, software development, and digital solutions since 1997; with 111 employees, $306K annual revenue, and recognized for penetration testing services that simulate real attacks to evaluate security vulnerabilities.
Anect A.s.
Czechia-based IT company providing ICT solutions, including security testing services like penetration testing and 'Red Team' assessments; offices in Prague, Brno, and Plzeň; emphasizes innovation, simplification, and user benefit.
insighti
insighti is a Czech-based private cybersecurity firm specializing in penetration testing, security audits, and consulting; with 4 employees and a focus on pentest services including red team exercises, it emphasizes tailored security solutions and market expertise.
INTEGRA
Czechia-based cybersecurity and IT talent provider; offers penetration testing and cybersecurity services; headquartered in Prague, Czechia; website in Czech language.
Tomas Bata University in Zlín
Czech higher education university based in Zlín; 268 employees with 7.9% YoY growth; offers diverse academic programs across six faculties; operates a Penetration Testing Laboratory (PT LAB) providing penetration testing and ethical hacking services, supported by contractual work.
WardenSec
Cybersecurity company based in Prague, Czechia, specializing in penetration testing services; offers infrastructure, web, mobile, IoT/OT, red/purple team, and phishing tests with documented engagements in financial and other sectors. Located at Korunní 2569/108, 101 00 Praha – Vinohrady.
Talkey | Chráníme vaši digitální bezpečnost
Talkey is a Czechia-based private IT & Services company founded in 2013 with 3 employees and +20% YoY growth, specializing in secure communication, data protection, and ICT penetration testing; it offers unique features such as encrypted virtual disks and secure file deletion, serving clients with a focus on digital security and compliance.
Aricoma
Aricoma is a Czechia-based private IT & Services company with 717 employees and $430.3M revenue, specializing in end-to-end digital transformation solutions and penetration testing services including network, application, ATM, and desktop testing; 22% YoY growth, founded over three decades ago, with a focus on ICT infrastructure, cloud, security, and outsourcing.
PwC
PwC is a private professional services firm with 120,836 employees and $55.4B annual revenue; based in Czechia with a Prague office at City Green Court, Hvězdova 1734/2c, Praha 4, confirming its formal Czech registration. The firm offers audit, assurance, tax, legal, deals, consulting, and cybersecurity services, including penetration testing validated by regional pages and CHECK certification, establishing its expertise in security testing.
Iron OT
Iron OT is a Czech company founded in 2023, specializing in industrial security and operational technology (OT) resilience. With over 30 years of shared experience, they provide penetration testing services for IT and OT infrastructure, focusing on creating lasting, effective security solutions for industrial environments.
CySec
Cybersecurity company based in Prague, Czechia; specializes in penetration testing, active data leak monitoring with DLAP, and social engineering assessments; provides comprehensive security evaluations and vulnerability identification.
SnapStack
IT services and consulting firm based in Czechia; specializes in custom software, managed IT, and cybersecurity including penetration testing; 22 employees, founded 2009, headquartered in Prague; offers security & penetration testing services as a core part of their cybersecurity solutions.
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.
Eviden Czech Republic
Czechia-based IT company registered at Doudlebska 1699/5, Prague; provides cybersecurity services including penetration testing (pentest) as listed on its homepage.
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.
Redamp.io
Redamp.io is a Czech private cybersecurity company specializing in computer and network security, with 13 employees and a -11.1% YoY growth since 2012. It is recognized as a boutique penetration testing provider in the Czech Republic for 2025, offering data security solutions, mobile data security, and security services for group and corporate retreats.
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TandemSec
Czech cybersecurity firm based in Brno; specializes in ethical hacking and penetration testing services; registered in Czechia with IČO 23020270; focuses on verifying system resistance against malicious attacks, with experience in banking, telco, and energy sectors.
Techfides
Cybersecurity firm headquartered in Brno, Czechia; provides penetration testing and security audit services, including web application security assessments and comprehensive pentest solutions.
Wardensec
Cybersecurity company based in Prague, Czechia, specializing in penetration testing services; provides security assessments to identify vulnerabilities, with a focus on proactive defense.
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.
Denevy
Cybersecurity firm headquartered in Prague, Czechia, specializing in penetration testing services; explicitly references penetration testing in its workflow and reporting processes.
Datasys S.r.o.
Czech IT company based in Prague; provides cybersecurity services including penetration testing (pentest) with nearly 30 years of experience serving government and corporate clients; specializes in security assessments and testing practices.
Devglobe s.r.o.
IT services and consulting firm based in Czechia; 7 employees with 14.3% YoY growth since 2013; specializes in web design, digital security, ICT consulting, custom applications, and penetration testing services including external, internal, mobile, web, IoT/OT, phishing, and team engagements; maintains a small web footprint with 119 monthly visits.
ACTUM Digital
IT services and consulting company based in Czechia; 215 employees, $5M-$25M revenue, founded 1996; offers digital transformation, experience management, and cybersecurity including penetration testing; recently acquired Kuehlhaus; recognized partner with over 28 years in business.
ShadowSec
Cybersecurity firm based in Rožnov pod Radhoštěm, Czechia, specializing in IT security and penetration testing services; actively promotes cyber protection with a local focus and a presence on multiple social media platforms.
Zymestic Solutions
Czech cybersecurity company specializing in data protection, network security, and application security; offers penetration testing (pentest) services including ethical hacking to assess system vulnerabilities; based in Prague 4, Czechia with registered address at Opatov Park Líbalova 2348/1, Chodov.
Trustica
Czech cybersecurity company based in Prague; specializes in penetration testing and applied cryptography with over 20 years of experience; provides security assessments, cryptography services, and system architecture solutions.
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.
Ixperta
Czech-based technology company headquartered in Prague; specializes in IT strategy, cybersecurity, and digital transformation; offers penetration testing, attack simulations, and resilience testing; focuses on building advanced IT ecosystems and solving complex tech challenges.
YOKEE
YOKEE is a Czech-based IT services and consulting company specializing in cybersecurity, penetration testing, red teaming, and security analysis; founded in 2023 with 0 employees and experiencing a 100% decline in growth YoY. The firm provides tools, training, and support for business advisory and cybersecurity, emphasizing credibility and trust issues in the industry.
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.
Etnetera Group
Etnetera Group is a Czech IT services and consulting company specializing in custom software, data analytics, and digital transformation; with 18 employees (+4.8% YoY growth), founded in 2011, headquartered in Prague. The firm offers penetration testing services as part of its security solutions, demonstrating capabilities in cybersecurity testing and vulnerability assessment.
COMGUARD a.s.
Czechia-based private company in computer and network security; 27 employees since 2006; focuses on security products, expert services, and training in Central and Eastern Europe; provides penetration testing including ethical hacking and social engineering.
ALEF CZ 💻
IT Services and IT Consulting company based in Czechia; 115 employees, $34.7M revenue, founded in 1994, with expertise in cybersecurity including penetration testing services; 37.9% YoY growth, serving clients with comprehensive technology solutions.
Target Five
Czech cybersecurity firm specializing in exposure management, vulnerability assessment, and penetration testing; headquartered in Prague with VAT CZ19840250; offers automated scans and manual pentests powered by ImmuniWeb.
Extelligence
IT services and consulting company based in Prague, Czechia, founded in 2011; employs 10 staff with $1M-$5M revenue; specializes in cybersecurity, data management, and IT resourcing; offers penetration testing services with autonomous platform integration (NodeZero via Horizon3.ai); stable employer rating of 5.0/5.0 from 3 reviews.
PwC Česká republika
PwC Česká republika is a Czech-based professional services firm headquartered in Prague, with offices in Brno and Ostrava; it offers audit, tax, consulting, and cybersecurity services, including penetration testing, threat scans, and security assessments, serving clients across various industries.
Axians Czech Republic
Czechia-based IT solutions provider specializing in comprehensive ICT services, including cybersecurity and penetration testing; offers tailored IT infrastructure design, implementation, and management with a focus on human-centric solutions; explicitly lists penetration testing as a core service and has conducted engagements for clients like the Ministry of Justice CZ.
ICT nwt s.r.o.
IT services and consulting company based in Czechia; 5 employees with 22.2% YoY growth; offers cloud solutions, IT outsourcing, IT security, and penetration testing services; operates own data center.
GORDIC
IT services and consulting company based in Czechia; 117 employees (+17% YoY), $20.3M revenue; specializes in security, cloud, digitalization, and offers penetration testing services; founded 1993; ranked #18,121 domestically and #1,850,438 globally; active in cybersecurity, with recent product attestations and media activity.
Mycom Solutions, S.r.o.
Czech IT security company providing cybersecurity services including penetration testing, risk analysis, data backup, and employee training; over 14 years of experience; headquartered in Czechia; offers 24/7 support and proactive threat mitigation.