The Ain department is home to a range of contract manufacturers, primarily mid-sized firms. These companies operate across diverse sectors, including specialized industrial components, packaging, and food production. Many of them focus on precision manufacturing and advanced materials.
Key companies include DUQUEINE Group, which develops composite materials for aerospace, and LISI MEDICAL, a subcontractor for orthopedic and dental implants. SPI Group provides packaging and logistics for food and pharma, while GERAL designs custom electrical equipment. A notable pattern is the concentration of plastics manufacturing in the Oyonnax area, with companies like LGR Packaging, FRANCIA, and SERIPLAST specializing in various plastic products and packaging.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
DUQUEINE Groupduqueine.fr
Develops and manufactures composite materials for the aerospace industry, focusing on innovative solutions and market growth. Specializes in advanced composite applications. |
454 | |||
| 2 |
LISI MEDICALlisi-group.com
Subcontractor specializing in industrial manufacture of orthopedic, trauma, spinal, and dental implants and instruments for leading companies globally. Proactive project management, production capacities, quality system, customer support. |
270 | |||
| 3 |
SPI Group : SPI Services / SPI Logisticspigroup.fr
Providing high-value packaging and logistics services with integrated engineering, automation, and quality for food, cosmetic, pharmaceutical sectors. |
225 | |||
| 4 | 195 | ||||
| 5 |
LGR Packaginglgr-packaging.com
A European manufacturer specializing in litho-printed cardboard packaging, offering solidboard folding cartons, laminated boxes, leaflets, and rigid boxes across multiple sites |
160 | |||
| 6 |
FRANCIAfrancia.fr
French plastic injection company offering end-to-end services from design to production, with expertise in various sectors and focus on quality, innovation, and team collaboration |
150 | |||
| 7 |
Stratus Packagingstratuspackaging.com
European leader in printed label manufacturing offering a wide range of product package designs including wrap-around labels, adhesive, sleeves, IML, and flexible packages. |
147 | |||
| 8 |
GERGONNE INDUSTRIE - THE ADHESIVE SOLUTIONgergonne.com
An independent French industrial group specializing in manufacturing and converting adhesive tapes and die-cut items for various markets globally |
141 | |||
| 9 |
SOLUSTIL
Specialized in sheet metal work, offering high-quality solutions from basic parts to complex functions for various industries through innovation and industrial integration |
129 | |||
| 10 |
Roland Monterratmonterrat-traiteur.fr
Leading producer of pies expanding into sandwich and catering markets, focusing on innovation, quality, and brand development. |
124 | |||
| 11 |
Adduxiadduxi.com
Family-owned international company providing industrial solutions, particularly in the automotive industry Specializing in product development, production process optimization, cost efficiency, quality, and innovation |
113 | |||
| 12 |
Tecmaplasttecmaplast.fr
French industrial company specialized in designing and manufacturing technical and appearance parts in thermoplastics by injection for automotive, electrical, and railway sectors |
103 | |||
| 13 | 86 | ||||
| 14 |
SERIPLASTseriplast.fr
Manufacturer of packaging plastic for cosmetics brands since 1966, specializing in thermoplastic injection and decoration of bottles, ampoules, roll-on, and pillboxes |
84 | |||
| 15 |
Clayens Healthcareclayens.com
A Healthcare support company offering development, manufacturing, and regulatory compliance services for medical/pharmaceutical devices and plastic components worldwide |
76 | |||
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 |
GAGGIONE sasoptic-gaggione.com
Manufacturer of high-quality optical components and solutions specializing in LED lighting applications, including collimators and other optics. |
60 | |||
| 17 |
Groupe Styl'mondestylmonde-thermoformage.com
Specializes in thermoforming, cutting technical parts, and assembling sub-assemblies with over 60 years of experience serving global clients. |
57 | |||
| 18 |
Marmillon – LCV Groupmarmillon.com
Specializes in plastic transformation through extrusion, injection, metallization, and varnish for automotive, lighting, furnishing, and building sectors. |
46 | |||
| 19 |
INFIPLASTinfiplast.com
An independent company in the Rhône Alpes Auvergne region, specializing in polymer transformation for medical and industrial projects with innovative solutions and expertise |
43 | |||
| 20 |
ETNA-PACKetna-pack.com
Design and manufacture of high-end, custom luxury packaging including cartons, folding boxes, covered cases, and tubes in Europe. |
39 | |||
| 21 |
Ercé Plasturgieerce-plasturgie.com
Design, development, manufacturing, and marketing of high-technology plastic products for automotive and medical markets across Europe. |
37 | |||
| 22 |
BCM Métalleriebcm-metallerie.com
Metal transformation services including laser cutting, machining, welding, and assembly for diverse industries with advanced equipment and expertise. |
36 | |||
| 23 |
DEFILUXE SAS
Co-conception and manufacturing of metal parts for luxury sectors, including leather goods, fashion accessories, jewelry, watchmaking, and eyewear. |
36 | |||
| 24 |
OPTISUNoptisun.fr
French leader in manufacturing optical and sunglass frames for high-end creators and brands worldwide |
36 | |||
| 25 |
Groupe PERNOUDpernoud.com
Specializes in plastic, aluminum, composite injection tooling with R&D, mold design, maintenance, precision machining, and thermoforming production services. |
33 | |||
| 26 |
FPSA Groupfpsa.com
Specializing in plastic injection and zinc/zamak alloy foundry, the company offers services from 3D design to packaging for product development |
32 | |||
| 27 |
Groupe ZEDESzedes.fr
Specialized in precision metal mold design and production for thermoplastic injection Provide co-design, rheological analysis, and industrialization services with experienced team and modern equipment |
26 | |||
| 28 |
PRP Creationprpcreation.fr
A plastic packaging solutions company offering innovative, high-quality products customized to meet customer needs, with a focus on sustainability and societal issues |
25 | |||
| 29 | 25 | ||||
| 30 |
AC MECANIQUE USINAGE FABRICATION ADDITIVE IMPRESSION 3D FDMacmecanique.fr
Specializing in custom precision machining for small to medium series, as well as offering 3D printing through FDM technology for additive manufacturing |
25 | |||
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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 11, 2026.
More company lists in the Ain department
- The largest companies in the Ain department 511
- Manufacturers in the Ain department 98
- Companies with in-house R&D in the Ain department 90
- Multinational companies in the Ain department 73
- Hardware manufacturers in the Ain department 53
- Plastics Manufacturing companies in the Ain department 53
- Chemical companies in the Ain department 51
- Family-owned companies in the Ain department 46
- Construction companies in the Ain department 42
- Distributors and wholesalers in the Ain department 41
- Retail chains in the Ain department 38
The same list elsewhere in France
- Contract manufacturers in France 2,250
- Contract manufacturers in Auvergne-Rhône-Alpes 523
- Contract manufacturers in Île-de-France 263
- Contract manufacturers in Pays de la Loire 217
- Contract manufacturers in Grand Est 192
- Contract manufacturers in Nouvelle-Aquitaine 180
- Contract manufacturers in Bourgogne-Franche-Comté 152
- Contract manufacturers in Occitanie 139
- Contract manufacturers in Hauts-de-France 136
- Contract manufacturers in Provence-Alpes-Côte d'Azur 111
- Contract manufacturers in Centre-Val de Loire 105
- Contract manufacturers in Normandy 101
- Contract manufacturers in Brittany 93
- Contract manufacturers in the Rhône department 87
- Contract manufacturers in the Haute-Savoie department 84
- Contract manufacturers in the Isère department 68
- Contract manufacturers in the Doubs department 56
- Contract manufacturers in the Nord department 56
- Contract manufacturers in the Maine-et-Loire department 55
- Contract manufacturers in the Haute-Garonne department 54
- Contract manufacturers in the Loire department 49
- Contract manufacturers in the Bouches-du-Rhône department 45
- Contract manufacturers in the Loire-Atlantique department 43
- Contract manufacturers in Paris 73