The companies listed in Pays de la Loire are mostly mid-sized firms in IT services and telecommunications, many of which offer cybersecurity solutions. TIBCO provides IT solutions including cybersecurity and data, while SQUAD offers cybersecurity consulting. unyc helps small and medium businesses access IT, telecom, and cybersecurity technologies, and VFLIT provides integrated cybersecurity and cloud services. Capaciti is a regional leader in cybersecurity, and Digitemis offers cybersecurity and personal data protection consulting.
The headquarters of these companies show a concentration around Nantes, with several firms located in Saint-Sébastien-sur-Loire, La Chapelle-sur-Erdre, and Carquefou. The founding dates span several decades, from Groupe Sigma in 1972 to Digitemis in 2014, indicating a mix of established companies and younger firms in the region.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 | 1,069 | ||||
| 2 |
SQUAD - Cabinet de conseils et dexpertisessquadgroup.com
Offers cybersecurity consulting and expert services, adapting to evolving IT practices like cloud computing and DevOps for major companies. |
803 | |||
| 3 |
Groupe Sigmasigma.fr
The company aims to enhance performance through digital impact, innovate eco-friendly solutions, and build digital ecosystems with expert dialogue |
607 | |||
| 4 | 215 | ||||
| 5 |
VFLIT - Vous faciliter l'ITvousfaciliter-it.fr
Providing integrated cybersecurity, cloud, telecom, management applications, and safety services to enhance organizational IT and communication system performance. |
164 | |||
| 6 |
Capaciticapaciti.com
A regional leader in cybersecurity, providing specialized services in consulting, engineering, and system infrastructure support with offices in France and international project capabilities |
150 | |||
| 7 |
KOSMOSkosmos-education.com
Specializing in digital education solutions, this company implements web portals, e-portfolios, mobile apps, and other digital tools for schools |
141 | |||
| 8 |
Iliane Informatiqueiliane.fr
Providing comprehensive IT solutions for businesses of all sizes to effectively manage their information systems |
83 | |||
| 9 | 78 | ||||
| 10 |
Digitemisdigitemis.com
Offers cybersecurity and personal data protection consulting. This includes technical and organizational cybersecurity, and GDPR compliance, with ANSSI security visa recognition. |
30 | |||
| 11 |
Proselisproselis.com
A company specializing in IT services with a focus on infrastructure, cybersecurity, and IT outsourcing, using an innovative pay-per-use model and emphasizing social responsibility |
30 | |||
| 12 |
ILLICO RESEAUillico-reseau.com
Established in 2007, specializing in network and security solutions, virtualization infrastructure deployment, and offering value-added hosting services in the Grand Ouest region |
25 | |||
| 13 |
Tranquil ITtranquil.it
Tranquil IT helps customers optimize local networks through WAPT fleet management software and Samba-AD, simplifying user, device, and application management |
25 | |||
| 14 |
ACS Informatiqueacsinfo.fr
With 16 years of experience, specializing in computerized accounting, management, and office solutions Provides software, network, hardware, and custom application development for SMEs across all sectors Also offers personalized support services |
24 | |||
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. | |||||
| 15 |
ENVOLiiSenvoliis.com
ENVOLiiS is a leading provider of cloud solutions focusing on digital transformation, IT infrastructure optimization, managed services, and cybersecurity for businesses |
22 | |||
| 16 |
ALL4TECall4tec.com
A company offering agile and systemic Cyber risk analysis tools with recognized methodologies, simplicity, openness, and proximity as core values Trusted by various industries |
20 | |||
| 17 |
NGAnalyticsnganalytics.eu
The company specializes in providing business continuity and cybersecurity managed services for critical workflows, focusing on design and operation |
20 | |||
| 18 |
Make IT Safemakeitsafe.fr
French software company specializing in managing cyber risks and ensuring compliance for organizations through Make IT Safe |
15 | |||
| 19 |
ARS NOVA SYSTEMS | Software publisher behind TinyMDMparentsaround.com
Specializing in software solutions, this company offers a variety of programs tailored for professionals in various industries |
14 | |||
| 20 |
SMA NETAGISsma-netagis.fr
Provider of managed digital transformation solutions specializing in geospatial information systems, IT infrastructure, and GDPR compliance for local authorities. |
13 | |||
| 21 |
IRONIE - Cybersecurity Expertiseironie.fr
The company provides expertise in security, systems, and networks for successful project implementation Contact us for tailored solutions |
11 | |||
| 22 |
Groupe Numainsnumains.eu
Groupe Numains prioritizes human-centered digital solutions, specializing in IT management, hosting, and telecommunications networking #Experts #Technology #Innovation |
11 | |||
| 23 |
Phishiaphishia.fr
Consulting services specializing in cybersecurity awareness, crisis management, environmental assessment, and carbon footprint reduction for organizations. |
8 | |||
| 24 |
Arvadonarvadon.fr
Cybersecurity consultancy firm providing high-value services to large clients, specializing in securing information systems and data across the cyber cycle Empowering employees and promoting diversity |
6 | |||
| 25 |
ARC Data Shieldarc-data-shield.fr
Specializing in cybersecurity appliances for both IT and OT networks, providing solutions to protect and secure network infrastructures |
5 | |||
| 26 |
CF TECHcf-tech.fr
Specializing in web services and cybersecurity, this company helps businesses and local governments with digitalization, IT management, network security, and website creation |
4 | |||
| 27 |
CYBERTRACK - La protection ultimecyber-track.fr
Cybertrack is a MSSP company providing a range of security solutions and expertise for all clients, from startups to large organizations |
2 | |||
| 28 |
Korriganed Securitykorriganed.fr
A cybersecurity specialist offering penetration tests, security audits, phishing campaigns, and computer security training to strengthen clients' security posture |
2 | |||
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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.
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- Critical infrastructure operators in Pays de la Loire 126
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The same list elsewhere in France
- Cybersecurity companies in France 958
- Cybersecurity companies in Île-de-France 525
- Cybersecurity companies in the Hauts-de-Seine department 154
- Cybersecurity companies in Auvergne-Rhône-Alpes 91
- Cybersecurity companies in Occitanie 49
- Cybersecurity companies in Provence-Alpes-Côte d'Azur 48
- Cybersecurity companies in the Rhône department 48
- Cybersecurity companies in Hauts-de-France 44
- Cybersecurity companies in Grand Est 40
- Cybersecurity companies in Brittany 37
- Cybersecurity companies in the Bouches-du-Rhône department 36
- Cybersecurity companies in Nouvelle-Aquitaine 35
- Cybersecurity companies in the Nord department 30
- Cybersecurity companies in the Haute-Garonne department 27
- Cybersecurity companies in the Ille-et-Vilaine department 25
- Cybersecurity companies in the Yvelines department 25
- Cybersecurity companies in Paris 290