| # | Company | Employees |
|---|---|---|
| 1 |
Motherson Aerospace SASad-industries.fr
Specializes in high-precision aerospace engine components, advanced metallic and composite products. Design, assembly, testing, industrialization, and production of complex parts with certified special processes. |
609 |
| 2 |
LISI GROUPlisi-group.com
Industrial group specializing in assembly solutions and high value-added components for aerospace, automotive, and medical sectors. Innovates for quality, safety, and performance. |
501 |
| 3 |
Schrader Pacific Advanced Valvesschrader-pacific.fr
Designs and produces valves and components for automotive, industrial, and aeronautical sectors, focusing on innovative solutions for future mobility challenges. |
219 |
| 4 |
IDMM (Industrie Doloise de Micromécanique)idmm-machining.com
Specializes in precision machining of small mechanical components for aerospace, medical, space, and defense sectors with certified quality standards. |
175 |
| 5 |
M-PLUS Groupm-plusgroup.com
Design, qualification, and production of complex boiler-making solutions using advanced technologies for energy and aerospace markets worldwide. |
134 |
| 6 |
GROUPE SEEBgroupeseeb.com
Providing tailored and efficient industrial engineering solutions with highly qualified teams, supporting clients worldwide from design to project completion. |
130 |
| 7 |
MBP - Mecanique Baumoise de Precisionmbp-usinage.fr
Family-owned company specializing in precision machining and subcontracting, offering comprehensive services from raw materials to just-in-time delivery across various industries. |
111 |
| 8 |
CURTIL SAScurtil.com
Specializes in high precision mechanical engineering and manufacturing of multi-cavity molds for various industrial applications requiring exact specifications. |
84 |
| 9 |
CRYLA GROUPcryla-group.com
Cryla Group specializes in high-precision microtechnical subcontracting, industrializing innovative solutions for demanding markets such as Aerospace, Medical, Luxury, and Industry |
70 |
| 10 |
Alliance MIMalliance-mim.com
Design and manufacture of innovative technological solutions using metal and ceramic powder injection and sintering for high-value small technical assemblies. |
68 |
| 11 |
DIXI microtechniquesdiximicrotechniques.com
Manufacturing high-precision microtechnology components and solutions for various industries, focusing on quality and advanced engineering techniques. |
65 |
| 12 |
FRALSENfralsen.fr
A precision microtechnical parts manufacturer serving high-tech industries like defense, medical, and space with expertise in design, R&D, and assembly |
53 |
| 13 |
Groupe CITELE : SICTA - Citele Industrie - Fonderie Rapide Belfortaine (FRB)groupe-citele.com
Family business with over 50 years industrial expertise, key player in automotive, railway, energy, aeronautics, HVAC, eco-responsible and innovative projects. |
51 |
| 14 |
Alliossallioss.com
Specializing in providing integrated services and technical expertise to meet various needs and requirements |
44 |
| 15 |
AR-Electroniquear-e.com
Designing and manufacturing advanced Xtal resonators, oscillators, and BAW piezoelectric filters for demanding aerospace and defense applications. |
43 |
| 16 |
M.G.O. Lepaul SASmgo.fr
Specializing in manufacturing high-precision mechanical parts for various high-end applications, with CNC machines, welding workshop, R&D department, and international trading services |
38 |
| 17 |
UND - Usine Nouvelle Décolletageund-franois.fr
Specialized workshops for precision turning, machining, and polishing of complex parts in various materials for demanding industries. |
37 |
| 18 |
Groupe SERTIPgroupesertip.fr
Specializing in marking, identification, and human-machine interfaces in small to medium series for major industrial players in various sectors such as defense, aerospace, and healthcare |
35 |
| 19 |
ALTITUDE INDUSTRIEaltitude-industrie.com
Precision machining and assembly subcontracting services provided by a company with engineering and production in Tunisia, supported by commercial operations in France |
34 |
| 20 |
35ème Régiment d'Infanteriesengager.fr
A historic mechanized infantry regiment of the French Army, founded in 1604, with a long history of participation in military campaigns Located in Belfort since 1873 |
26 |
| 21 | 26 | |
| 22 |
SEEB INDUSTRIE - Usinage de précisiongroupeseeb.com
SEEB INDUSTRIE offers comprehensive support in designing, producing, and machining high-value parts in small to medium series, using cutting-edge technology worldwide |
22 |
| 23 |
CENATScenats.com
Specializing in precision mechanical machining, assembly, and custom processes, we provide high-quality individual to medium series parts and assemblies |
22 |
| 24 |
ROUSSEL FRERES PRECISION MECANIQUEroussel-industries.fr
A mechanical and industrial engineering company located in Villers-sur-Port, France, specializing in precision mechanical services |
20 |
| 25 |
SETFORGE LA CLAYETTE SOCIETE NOUVELLEfarinia.com
A company in southern Burgundy with nearly 100 years of metal shaping experience, specializing in ultra-strong components for automotive, aerospace, energy, and defense industries |
20 |
| 26 |
SCIT Composites - Saint Claude Innovation Techniquescit-composites.com
Design and manufacture high-performance composite parts with precision machining, molding, quality testing, and innovative material guidance for various production scales. |
19 |
| 27 |
Rubis-Précis💎Micropierre High Tech Ceramrubis-precis.com
A world leader in micro-technologies, specializing in machining of hard materials, precision turned parts, mounted assemblies, and luxury industry components |
18 |
| 28 |
Cylindre SAScylindre-france.com
Specializing in precision machining, this company's French subsidiary produces high-value parts for the aerospace, medical, defense, luxury, and high-tech industries |
18 |
| 29 | 14 | |
| 30 |
AIRCRAFT COMPLETION ENGINEERING - ACE AEROace-aero.com
A comprehensive provider of Aircraft Interiors modification and Medevac solutions, offering complete services for a wide range of aviation needs |
12 |
| 31 |
SAFICsafic-besancon.com
Specializes in precision mechanics for over 50 years, manufacturing small hydraulic seats and valves, primarily for the aeronautics and hydraulic industries. |
11 |
| 32 |
iAero - i2A SASiaero.fr
A company specializing in developing innovative flight data recording and management solutions for light aviation, including a unique autopilot system |
11 |
| 33 |
GILLET DECOLLETAGEsts-industrie.com
Specialized in precision mechanical parts through traditional and CNC turning and precision turning, offering flexibility, rigor, and quick response for small to medium series production |
10 |
| 34 |
OUTIL COUPANT NUMERIQUEocn.fr
Designs and manufactures precision cutting tools. Located in Belfort, France, focusing on high-quality specialized tooling for various industries. |
10 |
| 35 |
MAHYTECmahytec.com
Specializing in hydrogen storage systems, this innovative company offers compressed and solid storage solutions, certified for transport and stationary use of hydrogen |
9 |
| 36 |
TBI - Thermie Bourgogne Industrietbi-sa.fr
Trusted partner for aerospace, nuclear, and other industries, providing cutting-edge thermal processing solutions with a focus on quality, efficiency, and expertise |
8 |
| 37 | 7 | |
| 38 |
PKTRONICS Group, a Milexia Company.milexia.com
Providing innovative electronics and computer solutions for harsh environments in sectors like aerospace, automotive, defense, and industrial, focusing on custom-made solutions |
6 |
| 39 |
Frec|n|syssoitec.com
Frec'n'sys designs and manufactures passive components for Telecom, frequency resonators and filters for Defense and Space, and communicative sensors for various applications Specializing in harsh environments |
5 |
| 40 |
WELP France SASwelp-group.com
French subsidiary manufacturing specialized armored and non-armored vehicles for authorities, providing high-technology protection, individual configurations, and security equipment for civilian and military platforms. |
4 |
| 41 |
JY'NOVEjy-nove.com
Specialized in precision machining on various materials with a team of passionate engineers Known for technical expertise, flexibility, and commitment to quality management |
3 |
| 42 |
DANIELSON AIRCRAFT SYSTEMSdanielson-groupe.fr
Specializing in propulsion systems for UAVs, this company handles development, marketing, and maintenance of advanced aircraft systems |
3 |
| 43 |
COINTET INDUSTRIEScointet-industries.com
Precision mechanical parts and assemblies manufacturing company specializing in aerospace, defense, transportation, and energy industries, offering versatility, reactivity, and high quality standards |
3 |
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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 Oct 24, 2026.
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