This selection of companies with in-house R&D in the Loire department includes a mix of established industrial firms and specialized manufacturers. SNF, with 2825 employees, develops water-soluble polymers for global water treatment. HEF Groupe specializes in surface materials engineering, while Clextral designs twin-screw extrusion technology. Focal-JMlab manufactures home audio loudspeakers and car audio systems. The list also features medical equipment companies like Gibaud, which focuses on health textiles, and Evolutis, an orthopedic implants company.
A notable pattern is the strong presence of companies in industrial manufacturing and specialized engineering. Many firms are headquartered in and around Saint-Étienne, including École des Mines de Saint-Étienne and ISTP ingénieurs, both higher education institutions. This concentration suggests a regional strength in advanced manufacturing and engineering, supported by local educational infrastructure.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 | 2,825 | ||||
| 2 |
École des Mines de Saint-Étiennemines-stetienne.fr
Engineering school focused on sustainable innovation, academic excellence, cutting-edge research, and addressing industrial, digital, and environmental challenges. |
761 | |||
| 3 |
Desjoyaux poolsdesjoyaux.fr
A global leader in buried pool construction, known for innovative technologies like active permanent casing and pipeless filtration systems since 1966 |
502 | |||
| 4 |
HEF Groupehef.group
A global leader in surface materials engineering with a focus on tribology and photonics, driving innovation in various sectors worldwide |
484 | |||
| 5 |
Setforgefarinia.com
Forged components supplier with over 100 years of experience, offering complete development from design to production using hot, warm, or cold forging techniques. |
341 | |||
| 6 |
Clextralclextral.com
Designing and developing twin-screw extrusion technology and industrial drying solutions for food, chemicals, and green industries, transforming raw materials into high-value products globally. |
283 | |||
| 7 |
Focal-JMlabfocal.com
Designs, manufactures, and sells home audio loudspeakers, car audio systems, monitoring loudspeakers, and headphones, focusing on faithful sound reproduction and innovation. |
262 | |||
| 8 |
ISTP ingénieursistp.fr
A pioneer in engineering education for over 30 years, offering specialized training for engineers in partnership with prestigious schools |
229 | |||
| 9 |
HAFNER Groupehafner.fr
Providing tailored products and innovative solutions to pâtisserie professionals, enhancing creativity and simplifying production processes daily. |
212 | |||
| 10 |
Nidec ASI S.A.S.nidec-conversion.com
Specializing in energy storage solutions in Europe, the company creates high-quality equipment for electric networks, EV charging stations, and infrastructure electrification |
178 | |||
| 11 |
Gibaud, une marque des Laboratoires Innotheragibaud.com
A French brand specializing in health textiles, focusing on back, wrist, ankle, knee, leg, and foot pain relief, promoting mobility and well-being |
175 | |||
| 12 |
EUROTABeurotab.eu
A company creating environmentally friendly solid cleaning products to promote hygiene, health, and well-being, offering innovations in dishwashing, disinfection, and more |
173 | |||
| 13 |
EVOLUTISevolutisfrance.com
A French orthopedic implants company specializing in hip, shoulder, hand, and knee prostheses known for quality, innovation, and international presence with ISO 13485 certification |
169 | |||
| 14 |
STEPHANIXstephanix.com
Designs, develops, manufactures medical imaging solutions for hospitals, clinics, and private establishments worldwide, with a focus on French innovation and expertise. |
167 | |||
| 15 |
FOREZIENNE MFLSforezienne.com
French manufacturer of high-quality cutting tools and accessories for primary and secondary wood processing, forestry, and sharpening machinery. |
162 | |||
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 |
SILEANEsileane.com
Specialists in robotics and vision, providing standard and customizable solutions for industrial automation to improve productivity in various industries |
158 | |||
| 17 |
Astrée Softwareastree-software.fr
An innovative industry 40 and MES software editor, focused on saving managers time and enhancing organization through user-friendly software solutions |
147 | |||
| 18 |
SAM OUTILLAGEsam-outillage.fr
Family-owned French manufacturer specializing in innovative professional hand tools, focusing on sustainable development and advanced connected equipment. |
146 | |||
| 19 |
Laboratoires CEETALceetal.com
Design and manufacture of chemical specialties providing hygiene and technical maintenance solutions for various professional sectors with environmental respect. |
143 | |||
| 20 |
GROUPE SABgroupe-sab.fr
Specialist in aluminum foundry and machining, serving automotive large series and industrial small to medium series markets with competitive solutions. |
129 | |||
| 21 |
NEYRETneyret.com
French manufacturer specializing in luxury textile ribbons, labels, and accessories for fashion, luxury, and event markets worldwide. |
114 | |||
| 22 |
AHFahf.mediunic.com
For over 70 years, we design and manufacture a range of medical beds and furniture for healthcare and senior living facilities, focusing on improving patient wellbeing |
112 | |||
| 23 |
Marrel SASmarrel.com
Design and manufacture hydraulic cylinders, arms, and hooklift systems for industrial vehicles ranging from 3 to 28 tons. |
112 | |||
| 24 |
Setic & Pourtiersetic-pourtier.com
Design and manufacture custom rotating machines for wire, telephone, energy, and data transmission cable industries focusing on quality and innovation. |
104 | |||
| 25 |
KFS MOBILITY
Global manufacturer specializing in railway seating, from research to maintenance Offering a variety of seats for high-speed trains, regional trains, trams, and metros Located in Loire, France |
97 | |||
| 26 |
e-Toteme-totem.eu
Designs, manufactures, installs, and manages electric vehicle charging stations and networks for businesses, public spaces, and individuals since 2012. |
90 | |||
| 27 |
ERMONT - Fayat Groupermont.fayat.com
Designing, manufacturing, and servicing hot-mix continuous asphalt plants, offering supermobile, supertransferable and stationary solutions since 1924 |
87 | |||
| 28 |
BOA Conceptboa-concept.com
Designs and manufactures scalable intralogistics systems using IoT, robotics, and embedded intelligence for e-commerce, retail, logistics, and industry. |
86 | |||
| 29 |
Issartelissartel.com
For over half a century, we develop, manufacture, and maintain highly complex mechanical, hydraulic, and pneumatic equipment for industries like Defense and Nuclear |
81 | |||
| 30 |
PCI Machiningpci-machining.com
Support manufacturers with custom production lines combining machining, automation, process engineering, and project management for various industries. |
80 | |||
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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 Loire department
- The largest companies in the Loire department 632
- Manufacturers in the Loire department 122
- Hardware manufacturers in the Loire department 71
- Multinational companies in the Loire department 66
- Contract manufacturers in the Loire department 49
- Retail chains in the Loire department 49
- Family-owned companies in the Loire department 43
- Industrial Machinery Manufacturing companies in the Loire department 39
- Public sector organisations in the Loire department 39
- Distributors and wholesalers in the Loire department 31
- Professional services firms in the Loire department 29
- Aerospace and defence companies in the Loire department 26
- Food and Beverage Manufacturing companies in the Loire department 25
The same list elsewhere in France
- Companies with in-house R&D in France 8,750
- Companies with in-house R&D in Île-de-France 2,695
- Companies with in-house R&D in Auvergne-Rhône-Alpes 1,460
- Companies with in-house R&D in Occitanie 680
- Companies with in-house R&D in Grand Est 640
- Companies with in-house R&D in Provence-Alpes-Côte d'Azur 613
- Companies with in-house R&D in Nouvelle-Aquitaine 566
- Companies with in-house R&D in the Hauts-de-Seine department 510
- Companies with in-house R&D in the Rhône department 509
- Companies with in-house R&D in Pays de la Loire 480
- Companies with in-house R&D in Hauts-de-France 410
- Companies with in-house R&D in Brittany 366
- Companies with in-house R&D in the Haute-Garonne department 323
- Companies with in-house R&D in the Bouches-du-Rhône department 321
- Companies with in-house R&D in the Isère department 304
- Companies with in-house R&D in Bourgogne-Franche-Comté 261
- Companies with in-house R&D in the Nord department 237
- Companies with in-house R&D in Normandy 227
- Companies with in-house R&D in the Gironde department 225
- Companies with in-house R&D in the Loire-Atlantique department 207
- Companies with in-house R&D in the Essonne department 198
- Companies with in-house R&D in Centre-Val de Loire 195
- Companies with in-house R&D in Paris 1,249
- Companies with in-house R&D in Lyon 192