These European companies are primarily large groups operating in IT services and consulting, telecommunications, and defense and aerospace manufacturing. They include organizations such as Capgemini, which delivers end-to-end services and solutions across strategy, technology, design, engineering, and business operations, and Orange, a global telecommunications operator. Other notable companies are Airbus, a pioneer in sustainable aerospace, and Thales, specializing in cybersecurity, defense, aerospace, digital identity, and secure communications.
The data shows a strong concentration of headquarters in France and the UK, with Paris and London featuring prominently. There is also a notable cluster of companies focused on defense and aerospace manufacturing, alongside a significant presence of IT services providers.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Capgeminicapgemini.com
Imagine future organizations, making it real with AI, technology, and people, delivering end-to-end services and solutions across strategy, technology, design, engineering and business operations |
342,989 | |||
| 2 |
Orangeorange.com
A leading global telecommunications operator offering services to millions of customers and multinational companies across 26 countries |
146,935 | |||
| 3 |
Airbusairbus.com
Pioneers sustainable aerospace, designs and manufactures commercial aircraft, offers space systems, defense, security, and provides civil and military rotorcraft solutions globally. |
88,309 | |||
| 4 | 85,294 | ||||
| 5 | 74,385 | ||||
| 6 | 73,712 | ||||
| 7 |
Thalesthalesgroup.com
Multinational specializing in cybersecurity, defense, aerospace, digital identity, and secure communications for governments and industries. |
65,031 | |||
| 8 |
BAE Systemsbaesystems.com
The company provides advanced technology-led defense, aerospace, and security solutions, with a skilled workforce in over 40 countries, focusing on innovation and long-term commitment |
55,143 | |||
| 9 | 49,000 | ||||
| 10 |
Sopra Steriasoprasteria.com
Offers consulting, digital services, and solutions, assisting large companies and organizations with digital transformation, improving competitiveness through technology and collaboration. |
47,609 | |||
| 11 |
Minsaitminsait.com
A leading Spanish technological consultant operating globally, leveraging cloud, security, payments, and innovative technology to drive business and societal impact #MoreMinsait |
45,000 | |||
| 12 |
Indra Groupindragroup.com
Leading multinational providing defense, space, air traffic management, and mobility solutions alongside information technology services, artificial intelligence, cybersecurity, and advanced digital transformation projects. |
39,308 | |||
| 13 |
Leonardoleonardo.com
Defense and security multinational company specializing in aerospace, cybersecurity, military systems, and advanced technology solutions |
38,521 | |||
| 14 |
NTT DATA Europe & Latamnttdata.com
Global IT services provider transforming clients through consulting, solutions, and managed services to enable a confident move into the digital future |
31,932 | |||
| 15 |
Orange Businessorange-business.com
Leading European network and digital integrator leveraging expertise in next-generation connectivity, cloud, and cybersecurity solutions for positive impact on customers and planet. |
28,626 | |||
| 16 | 22,634 | ||||
| 17 |
TIMgruppotim.it
Provides fixed, mobile, and digital services including Cloud, IoT, and Cybersecurity, building and sharing network infrastructure in Italy and Brazil. |
22,417 | |||
| 18 |
Applus+applus.com
A global leader in testing, inspection, and certification services, providing innovative solutions for asset integrity, regulatory compliance, and environmental performance |
20,046 | |||
| 19 |
TÜV SÜDtuvsud.com
Experts provide testing, certification, auditing, and advisory services across various industries, ensuring safety, security, and sustainability for technological advancements and market access. |
18,205 | |||
| 20 | 17,188 | ||||
| 21 |
Giesecke+Devrientgi-de.com
Global SecurityTech company providing digital security, financial platforms, and currency technology to enhance trust and safety worldwide. |
13,000 | |||
| 22 |
IDEMIAidemia.com
Provides payment, connectivity, cybersecurity, and biometric solutions to financial institutions, mobile operators, and public security organizations globally. |
12,233 | |||
| 23 |
Bechtle Schweiz AGbechtle.com
Leading IT service provider for SMEs, large customers, and public institutions, offering consulting, infrastructure, cloud, services, and software solutions throughout the entire IT life cycle. |
12,000 | |||
| 24 |
Engineering Groupeng.it
Leading digital transformation company with global presence, specializing in innovation, proprietary solutions, R&D, and diverse market expertise. |
11,815 | |||
| 25 |
PwC Deutschlandpwc.de
A leading auditing and consulting firm in Germany, offering services worldwide with expertise in assurance, tax, legal, deals, and strategy advisory |
11,566 | |||
| 26 |
Evideneviden.com
Eviden is a global leader in digital transformation, offering expertise in digital, cloud, data, advanced computing, and security solutions to industries worldwide |
10,793 | |||
| 27 |
T-Systems Internationalt-systems.com
Provides end-to-end IT solutions, cloud migration, and industry-specific digital transformation services with strong security and global presence. |
10,768 | |||
| 28 |
NETWORK-SECURITY-SOLUTIONSn-security.com
Specializing in managing Linux/Unix servers and large network environments with a focus on customized solutions, quality, and technological innovation |
10,400 | |||
| 29 |
SPIE Francespie.fr
Global actor in energy, digital, and industrial transitions, offering concrete solutions for decarbonizing buildings, industries, and territories through various technical services. |
9,833 | |||
| 30 |
Rohde & Schwarzrohde-schwarz.com
Technology group creates innovations, empowers industrial, regulatory, and military customers with test, measurement, and cybersecurity solutions, pushing boundaries in AI, 6G, cloud. |
9,600 | |||
| 31 | 8,687 | ||||
| 32 |
Thales Cyber and Digitalthalesgroup.com
Design and deliver digital identification, data protection products, software, and services for secure digital services globally. |
8,199 | |||
| 33 |
Vodafone Businessvodafone.com
Providing mobile, fixed, unified communications, IoT, cloud, and security services to businesses globally, regionally, and locally. |
8,100 | |||
| 34 |
Accenture Españaaccenture.com
A global professional services company helping businesses and governments with digital transformation, cloud technology, data analytics, and industry expertise to drive tangible outcomes |
6,208 | |||
| 35 |
Astekastekgroup.fr
Supports clients with high-value service, deep technical expertise across technology, operations, and engineering, focusing on sustainable digital transformation with humans at the core. |
6,035 | |||
| 36 |
TÜV NORD GROUPtuev-nord-group.com
Offers global consulting, service, and inspection solutions across diverse sectors including mobility, industrial services, IT, natural resources, and aerospace. |
5,960 | |||
| 37 |
KPMG Españakpmg.com
Professional services firm providing audit, tax, legal, financial, and business advisory with global expertise and local market knowledge. |
5,523 | |||
| 38 |
QinetiQqinetiq.com
Integrated global defence and security company focused on mission-led innovation, testing technologies, and enabling customers to deploy enhanced capabilities for protecting lives. |
5,512 | |||
| 39 |
Sophossophos.com
A global cybersecurity leader offering advanced solutions, managed services, and a broad portfolio of technologies to protect organizations from cyberattacks worldwide |
5,498 | |||
| 40 |
Cegekacegeka.com
A family-owned IT solutions provider focused on creating personalized customer experiences, aiming to become the leading European orchestrator of digital business platforms |
5,167 | |||
| 41 |
Logicalislogicalis.com
A global technology service provider helping organizations succeed in a digital-first world through cloud, connectivity, collaboration, and security solutions |
4,868 | |||
| 42 |
Kasperskykaspersky.de
Leading global cybersecurity firm working to build a safer world by securing technology to create opportunities for everyone |
4,597 | |||
| 43 |
Telefónica Techtelefonicatech.com
Accelerating tech adoption through services in Cyber Security, Cloud, IoT, Big Data, AI, and Blockchain, with a strong presence on social media platforms |
4,392 | |||
| 44 | 4,318 | ||||
| 45 |
Schwarz Digitsschwarz-digits.de
Providing cloud, cybersecurity, data, AI, communication, and workspace solutions for businesses, public sector, and society with strong IT infrastructure. |
4,292 | |||
| 46 |
Orange Cyberdefenseorangecyberdefense.com
Expert cybersecurity business unit of the Orange Group. They are a leading security provider, striving to build a safer digital society. |
4,274 | |||
| 47 | 4,163 | ||||
| 48 |
Getronicsgetronics.com
Global technology solutions provider empowering businesses with tailored, secure, and sustainable IT services to drive growth, efficiency, and reduce environmental impact |
4,147 | |||
| 49 |
Lutechlutech.group
A leading innovation company in Italy, Lutech Group offers end-to-end solutions for digital transformation, encompassing consulting, solutions, cybersecurity, services, and cloud technologies |
4,024 | |||
| 50 |
KPMG Nederlandkpmg.com
This company provides high-quality audit, tax, and advisory services to a wide range of clients, helping them navigate complex challenges and excel |
4,008 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 51 |
Noventiqnoventiq.com
A global digital transformation and cybersecurity solutions provider connecting 80,000+ organizations, with a diverse portfolio and active M&A strategy for growth |
3,941 | |||
| 52 |
Accenture DACHaccenture.com
A global consulting firm specializing in strategy, management, digitalization, technology, and business transformation, guiding clients through innovation and operational execution |
3,934 | |||
| 53 |
Atos IT Solutions and Services A/Satos.net
An international IT service provider offering high-tech transaction, consulting, system integration, and outsourcing services to a global customer base across various industries |
3,772 | |||
| 54 | 3,741 | ||||
| 55 |
SFR Businesssfrbusiness.fr
Provides innovative services supporting company growth and digital transformation. Offers high-performance fixed and mobile connectivity and ICT solutions to businesses and public administrations. |
3,520 | |||
| 56 |
TryHackMetryhackme.com
It simplifies learning and teaching Cybersecurity through prebuilt courses and cloud-hosted virtual machines, ideal for CTFs, workshops, and training. |
3,445 | |||
| 57 |
Micro Focusopentext.com
Provides AI, analytics, application development, modernization, and digital operations technologies to support digital transformation and smarter work processes. |
3,383 | |||
| 58 |
BAE Systems Digital Intelligencebaesystems.com
A global team of over 4,500 experts in digital, cyber, and intelligence, collaborating to collect and analyze complex data for governments and businesses |
3,252 | |||
| 59 |
Dekra Francedekra.fr
Inspection, certification, risk management, audits, training, and consulting services for automotive, transport, industry, environment, and safety sectors. |
3,188 | |||
| 60 | 3,169 | ||||
| 61 |
SVA System Vertrieb Alexander GmbHsva.de
A leading system integrator in Germany, offering IT products and services, data center infrastructure, business continuity, IT service management, SAP solutions, and operational support |
3,101 | |||
| 62 |
DOCAPOSTEdocaposte.com
Supports companies and public institutions in digital transformation, providing secure, simple digital experiences, processing sensitive data, and ensuring digital independence with regulatory compliance. |
3,076 | |||
| 63 |
Claranetclaranet.com
A global technology services provider offering managed services, professional services, and training in Cloud, Networks, Cyber Security, and Workplace technologies since 1996 |
3,073 | |||
| 64 |
DGSdgsspa.com
Specialized group offering security and digital transformation services, with a focus on excellence, innovation, and partnership within the ICT sector in Italy |
3,068 | |||
| 65 |
Exclusive Networksexclusive-networks.com
Global cybersecurity specialist driving transition to a trusted digital future, offering distribution services with innovative technologies, business models, and worldwide reach |
3,021 | |||
| 66 |
CS GROUPcs-soprasteria.com
Designs, builds, deploys, and maintains critical systems with innovative solutions and products, ensuring operational efficiency and security for client missions. |
2,968 | |||
| 67 | 2,930 | ||||
| 68 |
Centriccentric.eu
A leading partner in digital transformation, providing software solutions, IT assessments, cloud services, staffing, and business process outsourcing to a diverse range of clients |
2,900 | |||
| 69 |
Quantum Security Agencyorg.uk
Specialized restaurant marketing agency offering solutions to help restaurants thrive through social media management, content marketing, websites, and other marketing services |
2,842 | |||
| 70 |
T-Systems Iberiat-systems.com
Innovative global company promoting social and ecological well-being through groundbreaking projects, offering opportunities for talent to grow professionally and personally |
2,822 | |||
| 71 |
Darktracedarktrace.com
AI cybersecurity platform learns unique data, detects threats, and intervenes against attacks, protecting organizations worldwide from cyber-threats. |
2,632 | |||
| 72 | 2,627 | ||||
| 73 |
NCC Groupnccgroupplc.com
Cybersecurity firm advising global organizations on protecting data and systems, with expertise in assessing, mitigating, and responding to cyber threats Offices worldwide |
2,617 | |||
| 74 |
Gammagammagroup.co
Gamma is a leading supplier of Unified Communications services in the UK, Germany, Spain, and Benelux, offering robust solutions for communication and collaboration |
2,588 | |||
| 75 |
NATO Communications and Information Agency (NCIA)nato.int
NATO's technology and cyber experts with a team of 3,000 members across Europe and North America, safeguarding networks and providing critical capabilities to preserve peace and security |
2,545 | |||
| 76 |
Mimecastmimecast.com
Protects humans, data, and AI agents through a unified platform, securing the workforce and their interactions with AI from cyberattacks. |
2,396 | |||
| 77 |
Hack The Boxhackthebox.com
Leading platform enhancing organizational cyber resilience, battle-testing and upskilling humans and AI agents through real-world scenarios and gamified labs. |
2,309 | |||
| 78 |
Bitdefenderbitdefender.com
Leading cybersecurity company providing threat prevention, detection, and response solutions globally, protecting consumer, business, and government environments, and enabling cyber resiliency worldwide. |
2,307 | |||
| 79 |
TINEXTA S.P.A.tinexta.com
An industrial group providing innovative solutions for digital transformation and growth worldwide, specializing in Digital Trust, Cyber Security, and Business Innovation sectors |
2,219 | |||
| 80 |
Elektrobitelektrobit.com
Provides software and solutions for software-defined vehicles, including operating systems, middleware, digital cockpits, and engineering services. |
2,208 | |||
| 81 |
Kudelski Groupnagra.com
Leading provider integrated content protection, multi-device user experience solutions for digital television, interactive applications, cybersecurity, and Internet of Things innovations. |
2,152 | |||
| 82 |
Maternamaterna.de
An internationally successful IT service provider supporting businesses and authorities with digitalization through consulting, implementation, and operation services across various sectors |
2,134 | |||
| 83 |
ELCA Groupelca.ch
Leading Swiss provider of IT services and solutions, specializing in cybersecurity, data & AI, cloud, software development, and digital experience across industries |
2,026 | |||
| 84 |
IndraMind Cybersecurityindramindcybersecurity.com
Specialized cybersecurity company offering comprehensive 360º services and digital identity solutions to protect businesses internationally with sector expertise. |
2,000 | |||
| 85 | 1,994 | ||||
| 86 |
Acronisacronis.com
This company offers cyber protection solutions including antivirus, backup, and endpoint protection to safeguard data, applications, and systems worldwide |
1,961 | |||
| 87 |
IN Groupeingroupe.com
Provides identity solutions, secure digital services integrating electronics and biometrics for states, citizens, and businesses, ensuring digital sovereignty. |
1,852 | |||
| 88 |
Entelgyentelgy.com
A global consultancy that accelerates business transformation through innovative technological solutions, helping clients adapt and thrive in a constantly changing world |
1,796 | |||
| 89 |
F-Secure Corporationf-secure.com
Leading cybersecurity company providing award-winning consumer products and partnering with service providers to protect millions worldwide from cyber threats. |
1,791 | |||
| 90 |
Advania Swedenadvania.se
Leading Nordic IT provider customizing services and products for corporate customers in public and private sectors across the Nordics with global offerings in data center and communication services |
1,775 | |||
| 91 |
ELT Groupeltgroup.net
A global leader in electronic defense systems, specializing in managing the electromagnetic spectrum and offering technology solutions for defense, cyber, space, and biodefense |
1,728 | |||
| 92 |
All for Oneall-for-one.com
An innovative IT services company with over 2,800 experts, focusing on digital transformation for 3,000+ customers in the DACH region |
1,671 | |||
| 93 | 1,667 | ||||
| 94 | 1,660 | ||||
| 95 |
MTI Technology GmbHde.mti.com
A reliable partner offering storage, backup, datacenter optimization, security, cloud solutions, and managed services to guide businesses through digital transformation successfully |
1,655 | |||
| 96 | 1,646 | ||||
| 97 |
Sectrasectra.com
A company providing solutions for medical imaging IT and cybersecurity to enhance efficiency in healthcare and protect sensitive information for authorities and defense forces |
1,638 | |||
| 98 |
Airbus Protectairbus.com
A subsidiary of Airbus specializing in cybersecurity, safety, and sustainability services, offering advisory, consulting, training, and software solutions for risk management |
1,614 | |||
| 99 |
Visiativvisiativ.com
Delivers smarter working methods for agility, efficiency, and collaboration. Provides digital tools and practices, driving sustainable performance for businesses through tailored roadmaps. |
1,578 | |||
| 100 |
itm8 Danmarkitm8.dk
Global IT provider focused on Cloud Services, Digital Transformation, Application Services, and Cyber Security Guiding clients through complexity with innovative solutions |
1,571 | |||
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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 Europe
- The largest companies in Europe 213,553
- Multinational companies in Europe 42,025
- Companies with in-house R&D in Europe 20,169
- Retail chains in Europe 19,259
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- Professional services firms in Europe 13,698
- SaaS companies in Europe 13,682
- Software Development companies in Europe 12,950
- Financial services firms in Europe 12,943
- IT Services and IT Consulting companies in Europe 11,705
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- Companies with a mobile app in Europe 7,898
- Distributors and wholesalers in Europe 7,573
- Retail companies in Europe 6,240
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- E-commerce companies in Europe 5,864
- Hotel and hospitality groups in Europe 5,741
The same list elsewhere
- Cybersecurity companies in the world 3,776
- Cybersecurity companies in France 958
- Cybersecurity companies in the United Kingdom 549
- Cybersecurity companies in Switzerland 120
- Cybersecurity companies in Germany 113
- Cybersecurity companies in Spain 77
- Cybersecurity companies in Italy 73
- Cybersecurity companies in Belgium 69
- Cybersecurity companies in the Netherlands 55