These companies in Val-d'Oise are primarily IT services providers, ranging from large groups to mid-sized firms. Eviden, with over 10,000 employees, is a global leader in digital transformation. Worldgrid specializes in smart energy solutions, while Edifixio provides IT services to international companies. C2C focuses on IP network communication systems.
The data shows a strong concentration of IT services companies in Bezons, including Eviden, Worldgrid, Edifixio, digital.security, and Snapcom. This indicates a hub for digital and IT expertise within the department. Other companies like H-Tech Supports and IMP360 also contribute to the diverse IT landscape.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
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 | |||
| 2 | 970 | ||||
| 3 |
Edifixioedifixio.com
Provides IT services to large international companies, specializing in Industry, Retail, Insurance, and Services sectors, with a global presence. |
192 | |||
| 4 |
C2Cc2c-reseaux.fr
C2C is a specialized integrator in IP Network Communication Systems, covering areas such as cabling infrastructure, wireless, video surveillance, and access control solutions |
174 | |||
| 5 |
H-Tech Supportshtechsupports.com
Provides modern IT and network solutions, offering managed IT support, professional consulting, data solutions, and maintenance services to enterprise markets worldwide. |
107 | |||
| 6 |
SPIE Operationsspie.com
Provides multi-technical services in energy and communications sectors, supporting energy transition and digital transformation with diverse, committed teams. |
70 | |||
| 7 |
JL Consulting JLCjlconsulting.fr
Consulting firm specializing in ERP, CRM, and BI systems, focusing on employee well-being and long-term client partnerships. |
69 | |||
| 8 |
1G-LINK1glink.com
A passionate community of technology experts leveraging diverse skills to deliver disruptive digital solutions and drive brand resilience through innovation and success |
60 | |||
| 9 |
RODRIGUErodrigue.fr
A leading independent digital services company specializing in ticketing solutions for leisure sector, with extensive experience in managing, selling, and marketing tickets globally |
58 | |||
| 10 |
IMP360imp-360.com
Specialist in healthcare IT providing security evaluation, system integration, infrastructure management, medical imaging solutions, and continuity planning for clients. |
54 | |||
| 11 |
digital.securityeviden.com
Offers advanced audit, consulting, and an IoT CERT for companies and governments. Specializes in integration, operational security, and SOC/SIEM management. |
52 | |||
| 12 |
STEPHYAstephya.com
STEPHYA is a DATACENTER service center in France, offering IT relocation services across Europe with experienced consultants and highly skilled technicians |
50 | |||
| 13 |
Snapcomsnapcom.eu
Specializes in consulting, deploying, and optimizing unified communications, videoconferencing, audiovisual, and event solutions with expert services and training. |
43 | |||
| 14 |
INFODIPinfodip.com
A European IT company with 35 years' experience, offering customized solutions, appliances, service delivery, and support adhering to ISO 9001 standards |
35 | |||
| 15 | 35 | ||||
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. | |||||
| 16 |
SERVICE EXPERT ENTREPRISEserviceexpert.fr
Specializes in IT integration and support for professionals, focusing on telephony, internet, data, computing, office equipment, and security solutions. |
33 | |||
| 17 | 33 | ||||
| 18 | 33 | ||||
| 19 |
MIDRANGE Groupmidrange-group.com
Provides innovative, tailor-made digital services like IT support, AI, data, and IT asset disposition, focusing on sustainability and local economic commitment for businesses. |
28 | |||
| 20 |
TECH-EVENTtech-event.net
Development and provision of computer software solutions and services, operating primarily from France, focusing on technology and innovation. |
27 | |||
| 21 |
WYSIWYGwysiwyg.fr
Provider of private clouds for professionals hosting IT systems and full office environments, offering ERP, CRM, business management tools, and production management solutions |
25 | |||
| 22 |
Big Data Consultinglinktr.ee
Big Data Consulting specializes in dematerializing and optimizing EDI flows and processes to enhance exchange automation and security between partners' ERPs |
24 | |||
| 23 |
ELICOM SAS - Groupe Teleos5emeavenue.fr
An IT and Telecom solutions integrator in Pierrelaye, France, providing expertise, technology solutions, and support to businesses for over 20 years |
18 | |||
| 24 |
ANTANA - Informatique - Cybers茅curit茅 - Cloud Computingantana.fr
A technology company providing customized solutions for small and medium businesses, specializing in infrastructure, security, data backup, hardware selection, and event IT services |
17 | |||
| 25 |
IT-tudeit-tude.fr
IT-tude by Infodis is a consulting and integration company specializing in IT Service Management, Enterprise Service Management, and IT Asset Management solutions |
16 | |||
| 26 | 14 | ||||
| 27 |
ADES ingenierie Informatiqueades-info.fr
Specializing in IT solutions, this company offers consulting, network architecture, hardware/software selection, security, IT management, training, software development, and maintenance services for businesses |
14 | |||
| 28 |
Zor茅ole Serviceszoreole.com
Zoreole is an IT integrator and reseller specializing in secure computer networks, offering innovative solutions through partnerships with top vendors |
13 | |||
| 29 |
EDC NETWORKSedc-networks.fr
EDC Networks is a Digital Services Company specializing in Tertiary / Smart Buildings, Industrial, and Data Center environments, offering innovative infrastructure solutions |
12 | |||
| 30 |
Elan Hospitalityelan-hospitality.fr
Specializing in multimedia solutions for the hospitality and healthcare accommodation industry, offering services such as IPTV, WiFi networks, IP telephony, and mobile website design |
11 | |||
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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 11, 2026.
More company lists in the Val-d'Oise department
- The largest companies in the Val-d'Oise department 849
- Multinational companies in the Val-d'Oise department 128
- Companies with in-house R&D in the Val-d'Oise department 88
- Manufacturers in the Val-d'Oise department 85
- Hardware manufacturers in the Val-d'Oise department 70
- Distributors and wholesalers in the Val-d'Oise department 67
- Retail chains in the Val-d'Oise department 56
- Professional services firms in the Val-d'Oise department 44
- Family-owned companies in the Val-d'Oise department 42
- IT Services and IT Consulting companies in the Val-d'Oise department 38
- Transportation, Logistics, Supply Chain and Storage companies in the Val-d'Oise department 33
- Aerospace and defence companies in the Val-d'Oise department 31
- Public sector organisations in the Val-d'Oise department 30
- Construction companies in the Val-d'Oise department 29
- Wholesale companies in the Val-d'Oise department 29
- Healthcare providers in the Val-d'Oise department 27
- Industrial Machinery Manufacturing companies in the Val-d'Oise department 27
- Government Administration companies in the Val-d'Oise department 26
- Logistics companies in the Val-d'Oise department 25
The same list elsewhere in France
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