The aerospace and defence companies in Val-d'Oise are a mix of mid-sized firms and younger companies. They specialize in manufacturing components, providing IT services, and offering pilot training. Eviden, with over 10,000 employees, is a digital transformation leader. UUDS AERO manufactures aviation components, while Laroche Group offers complex machining and aerostructures assembly. Simaero provides global pilot training, and AERTEC Group offers technical support and cabin interior customization.
A notable cluster of these companies, such as UUDS AERO, Simaero, Time to Fly, and Otokar Europe, are headquartered in Roissy-en-France, indicating a concentration of aviation-related activities in that specific location within the department. Many of the companies were founded in the 1980s and 1990s, suggesting a period of growth and establishment for the sector in the region.
| # | 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 | 860 | ||||
| 3 |
POMMIERpommier.eu
A leading specialist in industrial vehicle bodywork equipment, offering a wide range of products designed and manufactured in-house since 1945 |
250 | |||
| 4 |
Laroche Grouplaroche-group.com
Offers complex machining, production engineering, and aerostructures assembly, supporting European industry leaders in major projects across aeronautics, space, automotive, telecoms, and rail. |
240 | |||
| 5 | 199 | ||||
| 6 |
AERTEC Groupgroupe-aertec.com
Technical support, aeronautical painting, cabin interiors customization, build-to-print products, R&D projects, and turnkey aviation solutions with certifications. |
101 | |||
| 7 |
PROTEC GROUPEprotec-groupe.com
Specialized industrial surface treatments and finishing for aerospace, defense, space, rail, energy, and luxury sectors with innovation and quality focus. |
86 | |||
| 8 | 81 | ||||
| 9 |
NIMROD Industriesnimrod-group.com
With over 40 years of experience in the aerospace industry, the company specializes in providing innovative, high value-added products and services to aviation leaders |
69 | |||
| 10 |
Nimrod Technologiesnimrod-group.com
Manufacture of sheet metal parts and sub-assemblies for aerospace, defense, automotive industries with advanced processes and quality certifications. |
55 | |||
| 11 |
Time to Flytimetofly.eu
Consulting company specializing in aeronautics founded by an experienced airline manager Services include aviation operation, engineering, maintenance, safety, and airport consulting worldwide |
53 | |||
| 12 |
Otokar Europeotokareurope.com
European distribution branch for Turkish automotive manufacturer specializing in commercial and military vehicle solutions with extensive production facilities. |
53 | |||
| 13 |
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 | |||
| 14 |
RENK Francerenk.com
Design and manufacture of transmissions and powerpacks for medium and heavy armoured military vehicles, wheeled or tracked. |
44 | |||
| 15 |
IMFimf-fluid.com
High-pressure system specialist providing tailored technological solutions and pressure control expertise for global aerospace, defense, nuclear, and industrial gas sector applications. |
40 | |||
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| 16 |
ETNA Industrieetna-industrie.fr
Manufacturer of hydraulic and pneumatic equipment and components with expertise in energy transport, aerospace, nuclear, cryogenics, and offshore industries. |
38 | |||
| 17 |
UAC CEFIVALcefival.fr
Manufactures special sections and tubes through hot extrusion, creating near net shape profiles tailored to customer requirements across various industries. |
36 | |||
| 18 |
ATELIERS LAUMONIERlaumonier.fr
Designs, industrializes, and manufactures technical parts, mechatronic sub-assemblies, and innovative technological products for SMEs, mid-caps, and large groups. |
34 | |||
| 19 |
CIMULEC GROUPEcimulecgroup.com
A leading European provider of high-reliability PCBs for space, aerospace, and military applications, offering services from prototypes to series production |
28 | |||
| 20 |
M2M FACTORYm2mfactory.fr
Development and integration of tactical solutions involving audio, video, transmission, and image analysis for security forces and investigation services across multiple countries. |
24 | |||
| 21 |
LERITYlerity-alcen.com
Design and manufacture of advanced long-range active imaging cameras and vision systems for defense, security, aerospace, and energy industries worldwide. |
22 | |||
| 22 |
Cimuleccimulecgroup.com
Manufacturing electrical and electronic components and products, providing industrial solutions based in Ennery, Germany. |
20 | |||
| 23 |
NovaKampnovakamp.fr
This company specializes in eco-friendly habitat kits, thermal energy optimization, waste recovery, infrastructure networks, power generation, engineering, and camp intelligence/data management for energy efficiency and sustainability |
15 | |||
| 24 |
CLAIR GROUPclair-group.com
Specializes in pilot training, aircraft maintenance, air transport, and airport services, providing comprehensive aeronautical solutions. |
14 | |||
| 25 |
PROMOFILTRESpromofiltres.com
A leading French industrial filtration manufacturer specializing in custom metal filters since 1970, offering a wide range of products and services with a focus on quality and expertise |
12 | |||
| 26 |
Traitement de Surface et M茅canique (TSM)tsm-sa.com
Specializes in surface treatment and precision machining of client parts, serving aerospace, military, industrial hydraulics, and nuclear sectors with certifications. |
10 | |||
| 27 |
SAFIM 95safim95.com
Specialist in machining metallurgical test specimens, prototyping, precise mechanical parts for various industries, equipped with machines for milling, turning, assembly ISO 9001 and EN9100 certified |
8 | |||
| 28 |
ALLIANCE OUTILLAGEalliance-outillage.fr
Specialized small business in precision mechanics, prototype part design and production, machining assembly services for aerospace, automotive, nuclear, and cosmetic industries ISO 9001 certified |
5 | |||
| 29 |
SFMS AERODIMsfms-aerodim.com
SFMS-AERODIM provides industrial production solutions, specializing in turning, milling, and precision machining for the aerospace, defense, transport, and other industries for nearly 50 years |
5 | |||
| 30 |
MTM-STTmtm-stt.fr
Company specializes in precision machining of parts, from prototype to small series, for demanding sectors like aeronautics and space, using various materials. |
4 | |||
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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 13, 2026.
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