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See also Penetration testing companies and companies based in Germany.
| Company | Category | Based in | Founded | Ownership |
|---|---|---|---|---|
 Auxilium Cyber Security Ettlingen consultancy pentesting vehicles, ADAS, gateways, infotainment and on-board chargers, plus R155 CSMS consulting. | Automotive cybersecurity | Ettlingen, Germany | 2015 | Private |
C Cure53 Berlin-based web, browser, and cryptography auditors founded by Dr. Mario Heiderich, trusted by ExpressVPN, NordVPN, 1Password, and Bitwarden. | Penetration testing | Berlin, Germany | 2013 | Private |
 dissecto Makes automated ECU and vehicle security test tools and hardware, and carries out automotive penetration testing. | Automotive cybersecurity | Regensburg, Germany | 2022 | Owned by dSPACE |
 FEV Engineering services group whose FEV.io arm runs TARA, ISO 21434 work, secure lab testing and vehicle pentests. | Automotive cybersecurity | Aachen, Germany | 1978 | Private |
 HiSolutions Berlin-headquartered German cybersecurity consultancy with 30+ years of BSI IT-Grundschutz experience. Trusted by federal agencies, DAX corporations, and critical infrastructure operators. | Security consulting and vCISO | Berlin, Germany | 1992 | Private |
 SRC Security Research & Consulting German security lab in Bonn, recognised by the PCI SSC for PTS device evaluation, plus German payment terminal schemes. | Penetration testing | Bonn, Germany | 2000 | Owned by Bank-Verlag, DG Nexolution, Deutscher Sparkassen Verlag and VÖB-ZVD |
 TÜV SÜD German testing and certification group whose security services include penetration tests, ISO/SAE 21434 certification and UN R155 audits. | Automotive cybersecurity | Munich, Germany | 1866 | Private |
 usd AG Frankfurt-based European payment security specialist holding the full set of PCI credentials (QSA, PFI, ASV, P2PE). Manual-first penetration testing for fintechs, acquirers, and regulated enterprises. | Penetration testing | Frankfurt, Germany | 2002 | Private |