# Cybersecurity companies headquartered in Germany

Tamtam tracks 113 cybersecurity companies headquartered in Germany. This list ranks the 50 largest by number of employees on LinkedIn, led by DEKRA, TÜV SÜD and Giesecke+Devrient. Their median headcount is 918. Half of them were founded in 1992 or later. The most common headquarters are Munich (8), Berlin (4) and Frankfurt (4).

These German companies specialize in cybersecurity, IT services, and public safety. The list includes large, established firms such as DEKRA, which provides expert safety services worldwide, and TÜV SÜD, offering testing and certification across various industries. Giesecke+Devrient focuses on digital security and financial platforms, while T-Systems International delivers end-to-end IT solutions. Rohde & Schwarz provides test, measurement, and cybersecurity solutions, and BWI GmbH is the digitalization partner for the Bundeswehr.

A notable pattern among these companies is the strong presence of IT Services and IT Consulting firms, indicating a focus on digital transformation and security. Many of these companies, like TÜV SÜD, Giesecke+Devrient, and Rohde & Schwarz, have long histories, with founding dates in the 19th and early 20th centuries, suggesting a foundation of traditional engineering and safety expertise that has evolved into modern cybersecurity.

🇩🇪 Germany · 50 companies · Updated Nov 12, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [DEKRA](https://www.tamtam.ai/c/dekra) (dekra.com)<br>DEKRA provides expert safety services worldwide, including vehicle inspection, claims services, industrial inspections, training, product certification, and sustainable solutions | Public Safety | 🇩🇪 Stuttgart | 49,000 |  |
| 2 | [TÜV SÜD](https://www.tamtam.ai/c/tuv-sud) (tuvsud.com)<br>Experts provide testing, certification, auditing, and advisory services across various industries, ensuring safety, security, and sustainability for technological advancements and market access. | Public Safety | 🇩🇪 Munich | 18,205 | 1866 |
| 3 | [Giesecke+Devrient](https://www.tamtam.ai/c/giesecke-devrient) (gi-de.com)<br>Global SecurityTech company providing digital security, financial platforms, and currency technology to enhance trust and safety worldwide. | IT Services and IT Consulting | 🇩🇪 Munich | 13,000 | 1852 |
| 4 | [PwC Deutschland](https://www.tamtam.ai/c/pwc-deutschland) (pwc.de)<br>A leading auditing and consulting firm in Germany, offering services worldwide with expertise in assurance, tax, legal, deals, and strategy advisory | Business Consulting and Services | 🇩🇪 Frankfurt | 11,566 |  |
| 5 | [T-Systems International](https://www.tamtam.ai/c/t-systems-international) (t-systems.com)<br>Provides end-to-end IT solutions, cloud migration, and industry-specific digital transformation services with strong security and global presence. | IT Services and IT Consulting | 🇩🇪 Frankfurt | 10,768 | 2000 |
| 6 | [Rohde & Schwarz](https://www.tamtam.ai/c/rohde-and-schwarz) (rohde-schwarz.com)<br>Technology group creates innovations, empowers industrial, regulatory, and military customers with test, measurement, and cybersecurity solutions, pushing boundaries in AI, 6G, cloud. | Telecommunications | 🇩🇪 Munich | 9,600 | 1933 |
| 7 | [TÜV NORD GROUP](https://www.tamtam.ai/c/tuv-nord-group) (tuev-nord-group.com)<br>Offers global consulting, service, and inspection solutions across diverse sectors including mobility, industrial services, IT, natural resources, and aerospace. | Consumer Services | 🇩🇪 Hanover | 5,960 |  |
| 8 | [BWI GmbH](https://www.tamtam.ai/c/bwi-gmbh) (bwi.de)<br>A leading IT service company in Germany, serving as the primary digitalization partner for the Bundeswehr, providing stable, secure, and efficient IT services domestically and abroad | IT Services and IT Consulting | 🇩🇪 Meckenheim | 4,318 | 2006 |
| 9 | [Schwarz Digits](https://www.tamtam.ai/c/schwarz-digits) (schwarz-digits.de)<br>Providing cloud, cybersecurity, data, AI, communication, and workspace solutions for businesses, public sector, and society with strong IT infrastructure. | IT Services and IT Consulting | 🇩🇪 Neckarsulm | 4,292 | 2023 |
| 10 | [Accenture DACH](https://www.tamtam.ai/c/accenture-dach) (accenture.com)<br>A global consulting firm specializing in strategy, management, digitalization, technology, and business transformation, guiding clients through innovation and operational execution | IT Services and IT Consulting | 🇩🇪 Kronberg im Taunus | 3,934 |  |
| 11 | [SEP GmbH](https://www.tamtam.ai/c/sep-gmbh) (sep.de)<br>A leading German software company providing backup and disaster recovery solutions for enterprise-level customers worldwide since 1996 | Software Development | 🇩🇪 Holzkirchen | 3,741 | 1992 |
| 12 | [SVA System Vertrieb Alexander GmbH](https://www.tamtam.ai/c/sva-system-vertrieb-alexander-gmbh) (sva.de)<br>A leading system integrator in Germany, offering IT products and services, data center infrastructure, business continuity, IT service management, SAP solutions, and operational support | IT Services and IT Consulting | 🇩🇪 Wiesbaden | 3,101 | 1997 |
| 13 | [CANCOM](https://www.tamtam.ai/c/cancom) (cancom.de)<br>Leads companies into the digital future, offering IT solutions, data-based digital solutions, managed and cloud services to reduce IT complexity and develop new business models. | IT Services and IT Consulting | 🇩🇪 Munich | 2,627 | 1992 |
| 14 | [Elektrobit](https://www.tamtam.ai/c/elektrobit) (elektrobit.com)<br>Provides software and solutions for software-defined vehicles, including operating systems, middleware, digital cockpits, and engineering services. | Software Development | 🇩🇪 Erlangen | 2,208 | 1988 |
| 15 | [Materna](https://www.tamtam.ai/c/materna) (materna.de)<br>An internationally successful IT service provider supporting businesses and authorities with digitalization through consulting, implementation, and operation services across various sectors | IT Services and IT Consulting | 🇩🇪 Dortmund | 2,134 |  |
| 16 | [ETAS](https://www.tamtam.ai/c/etas) (etas.com)<br>Provides vehicle software, middleware, development tools, cloud services, and cybersecurity solutions to car manufacturers, developing and securing software-defined vehicles. | Software Development | 🇩🇪 Stuttgart | 1,994 | 1994 |
| 17 | [All for One](https://www.tamtam.ai/c/all-for-one) (all-for-one.com)<br>An innovative IT services company with over 2,800 experts, focusing on digital transformation for 3,000+ customers in the DACH region | IT Services and IT Consulting | 🇩🇪 Filderstadt-Bernhausen | 1,671 |  |
| 18 | [MTI Technology GmbH](https://www.tamtam.ai/c/mti-technology-gmbh) (de.mti.com)<br>A reliable partner offering storage, backup, datacenter optimization, security, cloud solutions, and managed services to guide businesses through digital transformation successfully | IT Services and IT Consulting | 🇩🇪 Wiesbaden | 1,655 | 1988 |
| 19 | [Bundesdruckerei-Gruppe](https://www.tamtam.ai/c/bundesdruckerei-gruppe) (bundesdruckerei.de)<br>A technology company dedicated to secure identities, data, and infrastructure, specializing in high-security technology products and services trusted by businesses, states, and authorities | IT Services and IT Consulting | 🇩🇪 Berlin | 1,384 | 1763 |
| 20 | [Siemens Advanta](https://www.tamtam.ai/c/siemens-advanta) (siemens-advanta.com)<br>A global management consultancy navigating companies through digitalization journey from strategy to operations with industry and digital expertise | Business Consulting and Services | 🇩🇪 Munich | 1,336 |  |
| 21 | [netgo](https://www.tamtam.ai/c/netgo) (netgo.de)<br>A leading IT consulting firm providing holistic solutions and services to drive business success through digital innovation and strategic IT support | IT Services and IT Consulting | 🇩🇪 Berlin | 1,178 | 2007 |
| 22 | [KÖTTER Services](https://www.tamtam.ai/c/kotter-services) (koetter.de)<br>A diverse group specializing in security, cleaning, personnel services, and property management with over 90 branches and 50 locations in Germany | Facilities Services | 🇩🇪 Essen | 1,145 | 1934 |
| 23 | [TUV Rheinland](https://www.tamtam.ai/c/tuv-rheinland) (tuv.com)<br>An international certification company providing services to ensure quality standards are met for various industries worldwide | Medical Equipment Manufacturing | 🇩🇪 | 1,002 |  |
| 24 | [secunet Security Networks AG](https://www.tamtam.ai/c/secunet-security-networks-ag) (secunet.com)<br>Provides cybersecurity products and consulting for resilient digital infrastructures, protecting data, applications, and digital identities in areas like cloud, IIoT, eGovernment, and eHealth. | Computer and Network Security | 🇩🇪 Essen | 969 | 1997 |
| 25 | [IABG](https://www.tamtam.ai/c/iabg) (iabg.de)<br>IABG is a European technology and science service provider offering analytical, technical, and operational solutions in various sectors including automotive, aerospace, and defense | Think Tanks | 🇩🇪 Ottobrunn | 918 | 1961 |
| 26 | [Federal Office for Information Security (BSI)](https://www.tamtam.ai/c/federal-office-for-information-security-bsi) (bsi.bund.de)<br>This company shapes and enhances information security in digitization by focusing on prevention, detection, and reaction for government, business, and society | Government Administration | 🇩🇪 Bonn | 878 | 1991 |
| 27 | [iC Consult](https://www.tamtam.ai/c/ic-consult) (ic-consult.com)<br>Independent consultancy providing identity and access management services including advisory, implementation, integration, support, and managed cybersecurity solutions worldwide. | IT Services and IT Consulting | 🇩🇪 Munich | 842 |  |
| 28 | [ESG Elektroniksystem- und Logistik-GmbH](https://www.tamtam.ai/c/esg-elektroniksystem-und-logistik-gmbh) (hensoldt.net)<br>A German company specializing in developing, integrating, and supporting security systems and software for public sector and industry clients worldwide | IT Services and IT Consulting | 🇩🇪 Fürstenfeldbruck | 826 | 1967 |
| 29 | [UMB AG](https://www.tamtam.ai/c/umb-ag) (umb.ch)<br>This company in Switzerland provides smart IT solutions to help clients save time, strengthen core competencies, and achieve exceptional results | IT Services and IT Consulting | 🇩🇪 Cham | 761 | 1978 |
| 30 | [Controlware](https://www.tamtam.ai/c/controlware) (controlware.de)<br>Provides consulting, planning, installation, maintenance, and management of IT networks with expertise in security, communications, and data centers. | IT Services and IT Consulting | 🇩🇪 Dietzenbach | 748 | 1980 |
| 31 | [AmaliTech](https://www.tamtam.ai/c/amalitech) (amalitech.com)<br>A social business in Africa offering free IT training to empower youth for employment in the tech sector, promoting diversity and inclusion | IT Services and IT Consulting | 🇩🇪 Cologne | 640 | 2019 |
| 32 | [q.beyond AG](https://www.tamtam.ai/c/q-beyond-ag) (qbeyond.de)<br>Provides leading IT solutions for SMEs, addressing technological challenges, making business models future-ready, and enhancing business value with proprietary AI data centers. | IT Services and IT Consulting | 🇩🇪 Cologne | 634 | 1997 |
| 33 | [DEKRA Digital & Product Solutions](https://www.tamtam.ai/c/dekra-digital-and-product-solutions) (dekra.com)<br>The company specializes in creating intelligent testing solutions for various industries to ensure safety and security in the digitalized world | Public Safety | 🇩🇪 Stuttgart | 631 | 1925 |
| 34 | [abat](https://www.tamtam.ai/c/abat) (abat.de)<br>An innovative SAP service provider offering software solutions and consulting services for process optimization in automotive, manufacturing, logistics, and production control | IT Services and IT Consulting | 🇩🇪 Bremen | 630 | 1998 |
| 35 | [GISA GmbH](https://www.tamtam.ai/c/gisa-gmbh) (gisa.de)<br>IT service provider offering comprehensive solutions in consulting, application management, and managed cloud services, catering to energy, public, healthcare sectors nationwide | IT Services and IT Consulting | 🇩🇪 Halle | 630 | 1993 |
| 36 | [IGEL Technology](https://www.tamtam.ai/c/igel-technology) (igel.com)<br>Leader in secure endpoint OS for enterprises, specializing in VDI, DaaS, and secure browsing Supports Zero Trust security model, trusted worldwide Fueling growth and sustainability for organizations | Software Development | 🇩🇪 Bremen | 628 | 2001 |
| 37 | [IT-Dienstleistungszentrum Berlin](https://www.tamtam.ai/c/it-dienstleistungszentrum-berlin) (itdz-berlin.de)<br>Specializing in standardizing ICT workplaces, offering consulting and implementing new solutions to improve service quality for the City of Berlin | IT Services and IT Consulting | 🇩🇪 Berlin | 589 | 1969 |
| 38 | [Campana & Schott](https://www.tamtam.ai/c/campana-and-schott) (campana-schott.com)<br>International consultancy specializing in digitalization, New Work, sustainability, and organizational transformations for major corporations and mid-size companies. | Business Consulting and Services | 🇩🇪 Frankfurt | 569 | 1992 |
| 39 | [DIGITALL](https://www.tamtam.ai/c/digitall) (digitall.com)<br>Provider of digital solutions and services including AI, CRM, cybersecurity, data strategy, software engineering, and cloud services across Europe. | IT Services and IT Consulting | 🇩🇪 Frankfurt | 563 | 2021 |
| 40 | [operational services GmbH & Co. KG](https://www.tamtam.ai/c/operational-services-gmbh-and-co-kg) (operational-services.de)<br>A leading ICT service provider in Germany, offering data center, network, and application services, with expertise in various industries and secure cloud solutions | IT Services and IT Consulting | 🇩🇪 Frankfurt/Main | 533 | 2005 |
| 41 | [Utimaco](https://www.tamtam.ai/c/utimaco) (utimaco.com)<br>Develops on-premises and cloud-based hardware security modules, key management, data protection, identity management, and data intelligence solutions for critical infrastructures. | IT Services and IT Consulting | 🇩🇪 Aachen | 533 | 1983 |
| 42 | [Hornetsecurity](https://www.tamtam.ai/c/hornetsecurity) (hornetsecurity.com)<br>A global provider of cloud-based security solutions, offering comprehensive protection for Microsoft 365 and serving over 75,000 customers worldwide | IT Services and IT Consulting | 🇩🇪 Hanover | 533 | 2007 |
| 43 | [Ratiodata](https://www.tamtam.ai/c/ratiodata) (ratiodata.de)<br>IT service provider offering tailored concepts, high-quality hardware/software/services, expertise in complex IT solutions, and digitalization with a focus on security and regulatory compliance | IT Services and IT Consulting | 🇩🇪 Münster | 527 | 1972 |
| 44 | [ISO-Gruppe](https://www.tamtam.ai/c/iso-gruppe) (iso-gruppe.com)<br>An international IT service provider specializing in software engineering and IT consulting for various sectors, including tourism, SAP, and public administration | Software Development | 🇩🇪 Nuremberg | 512 | 1979 |
| 45 | [SoSafe](https://www.tamtam.ai/c/sosafe) (sosafe-awareness.com)<br>Empowers organizations to build security culture, mitigate risk through GDPR-compliant awareness programs. Behavioral science, smart algorithms, engaging personalized learning, smart attack simulations. | IT Services and IT Consulting | 🇩🇪 Cologne | 507 |  |
| 46 | [Manage Now](https://www.tamtam.ai/c/manage-now) (manage-now.de)<br>Providing comprehensive managed IT services integrating people, processes, and infrastructure to enable secure, scalable digital transformation and business growth. | IT Services and IT Consulting | 🇩🇪 Munich | 495 |  |
| 47 | [IDnow](https://www.tamtam.ai/c/idnow) (idnow.io)<br>A leading identity proofing platform provider in Europe, offering a range of verification solutions with high security standards and maximum user conversion | Software Development | 🇩🇪 Munich | 452 | 2014 |
| 48 | [Telekom Security](https://www.tamtam.ai/c/telekom-security) (geschaeftskunden.telekom.de)<br>Creating a secure digital future with minimal risk and maximum opportunities for businesses of all sizes, offering comprehensive cybersecurity solutions | IT Services and IT Consulting | 🇩🇪 Bonn | 448 |  |
| 49 | [G DATA CyberDefense](https://www.tamtam.ai/c/g-data-cyberdefense) (gdata.de)<br>Develops and provides cybersecurity products, services, and strategies, including endpoint protection and antivirus software, to ensure digital security and cyber sovereignty for businesses and individuals. | Computer and Network Security | 🇩🇪 Bochum | 399 | 1985 |
| 50 | [Veridos](https://www.tamtam.ai/c/veridos) (veridos.com)<br>A global provider of complete identity solutions trusted by governments worldwide for its comprehensive product portfolio | IT Services and IT Consulting | 🇩🇪 Berlin | 389 | 2015 |

## How this list is built

Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 12, 2026.

## More company lists in Germany

- [The largest companies in Germany](https://www.tamtam.ai/l/largest-companies-germany) (15,224)
- [Multinational companies in Germany](https://www.tamtam.ai/l/multinational-companies-germany) (4,800)
- [Companies with in-house R&D in Germany](https://www.tamtam.ai/l/r-and-d-companies-germany) (2,450)
- [Manufacturers in Germany](https://www.tamtam.ai/l/manufacturers-germany) (1,957)
- [Software Development companies in Germany](https://www.tamtam.ai/l/software-development-companies-germany) (1,401)
- [SaaS companies in Germany](https://www.tamtam.ai/l/saas-companies-germany) (1,389)
- [Retail chains in Germany](https://www.tamtam.ai/l/retail-chains-germany) (1,383)
- [Family-owned companies in Germany](https://www.tamtam.ai/l/family-owned-companies-germany) (1,330)
- [Hardware manufacturers in Germany](https://www.tamtam.ai/l/hardware-companies-germany) (1,316)
- [Critical infrastructure operators in Germany](https://www.tamtam.ai/l/critical-infrastructure-operators-germany) (1,305)
- [Financial services firms in Germany](https://www.tamtam.ai/l/financial-services-firms-germany) (1,265)
- [Transportation, Logistics, Supply Chain and Storage companies in Germany](https://www.tamtam.ai/l/transportation-logistics-supply-chain-and-storage-companies-germany) (1,145)
- [Companies with a mobile app in Germany](https://www.tamtam.ai/l/companies-with-mobile-app-germany) (928)
- [IT Services and IT Consulting companies in Germany](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-germany) (911)
- [Corporate groups and holding companies in Germany](https://www.tamtam.ai/l/holding-companies-germany) (832)
- [Public sector organisations in Germany](https://www.tamtam.ai/l/public-sector-organisations-germany) (812)
- [IT services companies in Germany](https://www.tamtam.ai/l/it-services-companies-germany) (776)
- [Financial Services companies in Germany](https://www.tamtam.ai/l/financial-services-companies-germany) (745)
- [Professional services firms in Germany](https://www.tamtam.ai/l/professional-services-firms-germany) (690)
- [Logistics companies in Germany](https://www.tamtam.ai/l/logistics-companies-germany) (597)
- [Consulting firms in Germany](https://www.tamtam.ai/l/consulting-firms-germany) (584)
- [Automotive manufacturers and suppliers in Germany](https://www.tamtam.ai/l/automotive-companies-germany) (504)
- [Banking companies in Germany](https://www.tamtam.ai/l/banking-companies-germany) (485)
- [Machinery Manufacturing companies in Germany](https://www.tamtam.ai/l/machinery-manufacturing-companies-germany) (476)

## The same list elsewhere

- [Cybersecurity companies in the world](https://www.tamtam.ai/l/cybersecurity-companies-in-the-world) (3,776)
- [Cybersecurity companies in Europe](https://www.tamtam.ai/l/cybersecurity-companies-in-europe) (2,197)

---

Source: https://www.tamtam.ai/l/cybersecurity-companies-germany