# Top 35 cybersecurity companies in Nouvelle-Aquitaine

Tamtam tracks 35 cybersecurity companies headquartered in Nouvelle-Aquitaine. This list ranks all of them by number of employees on LinkedIn, led by SERMA Group, ITS Group S.A. and CHEOPS TECHNOLOGY. Their median headcount is 39. Half of them were founded in 2005 or later. The most common headquarters are Bordeaux (7), Mérignac (3) and Pessac (3).

These cybersecurity-focused companies in Nouvelle-Aquitaine are primarily IT services and consulting firms, alongside some specialized computer and network security integrators. Notable companies include SERMA Group, which specializes in electronics solutions for high-stress environments, and CHEOPS TECHNOLOGY, a leader in Cloud Computing in France with expertise in cybersecurity. Nomios France focuses on cybersecurity integration and operational maintenance, while SERMA Safety and Security provides expertise in product and system security.

The companies listed are a mix of established firms and more recently founded businesses. For example, QUADRIA was founded in 1957, whereas SERMA Safety and Security was founded in 2016. A significant number of these companies, such as SERMA Group, CHEOPS TECHNOLOGY, and SERMA Safety and Security, are headquartered in Pessac or nearby locations, indicating a geographical concentration in the Gironde department.

🇫🇷 Nouvelle-Aquitaine · 35 companies · Updated Nov 12, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [SERMA Group](https://www.tamtam.ai/c/serma-group) (serma.com)<br>An independent, international platform specializing in electronics solutions and services for high-stress environments, offering expertise in 5 core business lines | Business Consulting and Services | 🇫🇷 Pessac | 1,268 | 1991 |
| 2 | [ITS Group S.A.](https://www.tamtam.ai/c/its-group-s-a) (itsgroup.com)<br>Supports companies in digital transformation projects, offering turnkey IT solutions and managed services in cloud, mobility, infrastructure, cybersecurity, and data management. | IT Services and IT Consulting | 🇫🇷 Boulogne-Billancourt | 868 | 1997 |
| 3 | [CHEOPS TECHNOLOGY](https://www.tamtam.ai/c/cheops-technology-canejan) (cheops-technology.com)<br>Specializing in secure IT infrastructure, this company is a leader in Cloud Computing in France With 4 divisions, they offer expertise in Cloud, Cybersecurity, and Technology Modernization | IT Services and IT Consulting | 🇫🇷 Canéjan | 601 | 1998 |
| 4 | [QUADRIA](https://www.tamtam.ai/c/quadria) (heliaq.fr)<br>French-owned company focused on network and telecom architectures, infrastructure solutions, cloud computing, and management solutions for SMEs across France, Germany, and Switzerland. | IT Services and IT Consulting | 🇫🇷 Le Haillan | 495 | 1957 |
| 5 | [Forward Global](https://www.tamtam.ai/c/forward-global) (forwardglobal.com)<br>Anticipating managing risks, addressing crises conflicts. Delivering services solutions integrating human expertise with technology for diverse risks. | Business Consulting and Services | 🇫🇷 Paris | 486 | 2002 |
| 6 | [Nomios France](https://www.tamtam.ai/c/nomios-france) (nomios.fr)<br>Integrator specializing in cybersecurity since 2004, offering tailored support, integration, and operational maintenance of cybersecurity solutions for businesses across France and Europe. | Computer and Network Security | 🇫🇷 | 314 | 2004 |
| 7 | [SERMA Safety and Security](https://www.tamtam.ai/c/serma-safety-and-security) (serma-safety-security.com)<br>Provides expertise, evaluation, and consulting for product and system security and safety, covering cybersecurity, functional safety, and formal methods, for various industries. | Computer and Network Security | 🇫🇷 Pessac | 227 | 2016 |
| 8 | [Celios](https://www.tamtam.ai/c/celios) (celios.fr)<br>A digital services company offering a range of information systems, digital development, and digital transformation services to businesses and organizations | IT Services and IT Consulting | 🇫🇷 Limoges | 109 | 2011 |
| 9 | [Actuelburo](https://www.tamtam.ai/c/actuelburo) (actuelburo.fr)<br>We offer innovative solutions in IT, Cloud, Telecom, Digitalization, Printing, Management, Web Marketing, and E-commerce for SMEs, craftsmen, and online businesses | IT Services and IT Consulting | 🇫🇷 Narrosse | 100 | 1976 |
| 10 | [IMPI](https://www.tamtam.ai/c/impi) (impi.fr)<br>IMPI is a computer software company located in Saint-Pierre-du-Mont, France, specializing in developing innovative software solutions for various industries | IT Services and IT Consulting | 🇫🇷 Saint-Pierre-du-Mont | 99 |  |
| 11 | [NOVENCI](https://www.tamtam.ai/c/novenci) (novenci.fr)<br>A company specializing in technical solutions, system integration, infrastructure supply, and user support services for information systems | IT Services and IT Consulting | 🇫🇷 L'Isle-d'Espagnac | 85 | 1985 |
| 12 | [OMNITECH SECURITY](https://www.tamtam.ai/c/omnitech-security) (omnitech-security.fr)<br>Expertise in security and cybersecurity with software development, access control systems, custom solutions, maintenance, support, and client training services. | Security and Investigations | 🇫🇷 Saint-Médard-en-Jalles | 57 | 2005 |
| 13 | [IDLINE](https://www.tamtam.ai/c/idline) (idline.fr)<br>A French-based operator and host, providing secure IT solutions for businesses including networking, hosting, communication services, and cybersecurity solutions for over 20 years | Computer Networking Products | 🇫🇷 L'Isle-d'Espagnac | 52 | 1996 |
| 14 | [PLEIN SUD - Partenaire Technologique](https://www.tamtam.ai/c/plein-sud-partenaire-technologique) (pleinsudgroupe.fr)<br>The company offers a comprehensive range of Telecommunications, IT infrastructure, and assistance services to meet all types of business needs | IT Services and IT Consulting | 🇫🇷 Bègles | 52 | 2001 |
| 15 | [Soluris](https://www.tamtam.ai/c/soluris) (soluris.fr)<br>Support and guide 580 public institutions in Nouvelle Aquitaine through digital transformation as a public digital services operator. | IT Services and IT Consulting | 🇫🇷 Saintes | 50 | 1985 |
| 16 | [Everping](https://www.tamtam.ai/c/everping) (everping.eu)<br>The company helps startups and SMEs manage their IT infrastructure effortlessly from one platform, offering services like purchasing, setup, security, and support | Technology, Information and Internet | 🇫🇷 Bordeaux | 48 | 2020 |
| 17 | [eShard](https://www.tamtam.ai/c/eshard) (eshard.com)<br>eShard specializes in analyzing and mitigating security risks in mobile and IoT devices to ensure product protection and customer trust | Computer and Network Security | 🇫🇷 Pessac | 47 | 2015 |
| 18 | [IS Decisions](https://www.tamtam.ai/c/is-decisions) (isdecisions.com)<br>Builds access management software solutions securing access to Active Directory infrastructures, SaaS applications, and data for IT teams globally. | Software Development | 🇫🇷 Bidart | 39 | 2000 |
| 19 | [Dotsafe](https://www.tamtam.ai/c/dotsafe) (dotsafe.fr)<br>A growing human-sized service company specializing in web and mobile app development with a focus on security, teamwork, and client satisfaction | Software Development | 🇫🇷 Bordeaux | 39 | 2009 |
| 20 | [aktea](https://www.tamtam.ai/c/aktea) (aktea.fr)<br>Specializing in security, infrastructure, and unified communications since 2005 Providing system transformation services, certified engineers, deployment, support, and training Located in the Grand Sud-Ouest with a national reach | IT Services and IT Consulting | 🇫🇷 Eysines | 27 | 2005 |
| 21 | [AT CONNECT](https://www.tamtam.ai/c/at-connect) (solutionsconnect.fr)<br>100% Connect offers high-quality telecommunication services for small and medium enterprises, focusing on excellent customer service and support Leading B2B telecom provider Contact us for more information 📞 | Telecommunications | 🇫🇷 Anglet | 26 |  |
| 22 | [Informatique et Services Internet - ISI Group](https://www.tamtam.ai/c/informatique-et-services-internet-isi-group) (isi-group.net)<br>A company founded in 2009 in Bordeaux, specializing in computer networks and information system security, offering local services from Mérignac | Computer Networking Products | 🇫🇷 Mérignac | 18 | 2009 |
| 23 | [v6Protect](https://www.tamtam.ai/c/v6protect) (v6protect.fr)<br>Revolutionizing vulnerability monitoring and protection of Internet-exposed applications through automated solutions for managing attack surface, vulnerabilities, compliance, and web applications protection | Computer and Network Security | 🇫🇷 Bordeaux | 14 | 2019 |
| 24 | [Hornetsecurity - Anciennement Altospam](https://www.tamtam.ai/c/hornetsecurity-anciennement-altospam) (hornetsecurity.com)<br>ALTOSPAM offers an outsourced email protection software for businesses, utilizing 15 anti-spam technologies and 3 antivirus to prevent spam before reaching client servers | Software Development | 🇫🇷 Bordeaux | 14 | 2002 |
| 25 | [Expert-Com](https://www.tamtam.ai/c/expert-com) (expert-com.com)<br>Specialists in telecom management and IT security, with over 20 years of experience helping businesses in digital transformation and improving performance across Europe | Computer and Network Security | 🇫🇷 Mérignac | 14 | 2003 |
| 26 | [Knock Knock](https://www.tamtam.ai/c/knock-knock) (haryon.fr)<br>Knock Knock provides AI and automation solutions for offensive cybersecurity teams, offering a Pentest Orchestration and Automation Platform for industrializing pentesting expertise and efficiency | Computer and Network Security | 🇫🇷 Bègles | 12 | 2021 |
| 27 | [PORTYQ](https://www.tamtam.ai/c/portyq) (portyq.com)<br>Securing data and communications against quantum cyber threats through expertise in post-quantum and quantum cryptography solutions. Based in France, with NIST-recognized co-founders. | Technology, Information and Internet | 🇫🇷 Talence | 4 | 2025 |
| 28 | [SitinCloud](https://www.tamtam.ai/c/sitincloud) (sitincloud.com)<br>The company offers two cybersecurity solutions: OwlyScan searches the Darknet for unencrypted files relevant to businesses, while OwlyDetect detects abnormal data behavior | IT Services and IT Consulting | 🇫🇷 Pau | 4 | 2014 |
| 29 | [Owlcub](https://www.tamtam.ai/c/owlcub) (owlcub.com)<br>SaaS platform providing SMBs with intuitive cybersecurity tools including dashboards, automated audits, risk management, and educational resources. | IT Services and IT Consulting | 🇫🇷 Agen | 3 | 2024 |
| 30 | [HACK-IT-N](https://www.tamtam.ai/c/hack-it-n) (hack-it-n.com)<br>The company specializes in cybersecurity and organizes the HACK-IT-N conference in partnership with an engineering school, focusing on cyber defense and attacks | Computer and Network Security | 🇫🇷 Talence | 2 | 2016 |
| 31 | [Cybil cyber pour tous](https://www.tamtam.ai/c/cybil-cyber-pour-tous) (cybil.fr)<br>Development of a comprehensive French platform supporting small business leaders in managing cybersecurity threats with dedicated coaching and local solutions. | Computer and Network Security | 🇫🇷 Niort | 2 | 2022 |
| 32 | [MCI Services](https://www.tamtam.ai/c/mci-services) (mci-services.com)<br>Cybersecurity specialist providing tailored solutions such as audits, secure cloud storage, antivirus, firewall, and IT support to optimize daily operations | IT Services and IT Consulting | 🇫🇷 Bordeaux | 2 | 2004 |
| 33 | [Cabinet Thierry MEYER Consultants](https://www.tamtam.ai/c/cabinet-thierry-meyer-consultants) (tm-consultants.fr)<br>A specialized consulting firm in information security, providing audits, technical expertise, incident response, and personalized protection services to reduce cybersecurity risks | IT Services and IT Consulting | 🇫🇷 Bordeaux | 2 | 2005 |
| 34 | [Beware Cyberlabs](https://www.tamtam.ai/c/beware-cyberlabs) (beware-cyberlabs.eu)<br>Development of cyber range platforms, traffic simulators, deception solutions, and training programs to enhance cybersecurity skills and defenses. | Computer and Network Security | 🇫🇷 Bordeaux | 1 | 2018 |
| 35 | [FB-CONSULTANT.FR](https://www.tamtam.ai/c/fb-consultant-fr) (fb-consultant.com)<br>A consulting firm specializing in digital transformation for businesses, focusing on data security (RGPD compliance, DPO service, cybersecurity) and digital communication (marketing strategy, community management, lead acquisition) | IT Services and IT Consulting | 🇫🇷 Mérignac | 1 | 2019 |

## 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.

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