# 30 leading companies with in-house R&D in the Moselle department
Tamtam tracks 36 companies with in-house R&D headquartered in the Moselle department. This list ranks the 30 largest by number of employees on LinkedIn, led by ASCOMETAL, SEMIN and LEACH INTERNATIONAL EUROPE. Their median headcount is 47. Half of them were founded in 1996 or later. The most common headquarters are Metz (6).
These Moselle-based companies demonstrate a focus on industrial innovation and specialized manufacturing. The list includes a mix of established mid-sized firms and younger companies engaged in R&D.
Notable examples include ASCOMETAL, specializing in long engineering steel products, and SEMIN, manufacturing high-quality construction materials. LEACH INTERNATIONAL EUROPE designs advanced electromechanical solutions, while DAIMAY FRANCE SAS manufactures automotive sunshades. AFYREN NEOXY produces biobased acids, and Est Industries engineers industrial boilers. The companies show a blend of traditional industrial activities with modern technological advancements.
馃嚝馃嚪 Moselle 路 30 companies 路 Updated Nov 12, 2026
| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [ASCOMETAL](https://www.tamtam.ai/c/ascometal) (ascometal.com)
Specializing in long engineering steel products for Automotive, Bearings, Oil & Gas, and Mechanical Engineering industries, designing, manufacturing, and delivering worldwide | Mining | 馃嚝馃嚪 Hagondange | 411 | 2018 |
| 2 | [SEMIN](https://www.tamtam.ai/c/semin) (semin.com)
Manufacturing and supplying high-quality construction materials for building and interior renovation with focus on innovation, customer service, and environmental responsibility. | Wholesale Building Materials | 馃嚝馃嚪 K茅dange-sur-Canner | 284 | 1838 |
| 3 | [LEACH INTERNATIONAL EUROPE](https://www.tamtam.ai/c/leach-international-europe) (leachint.com)
High-technology company specializing in the design and manufacture of advanced electromechanical and electronic solutions for critical applications worldwide. | Aviation and Aerospace Component Manufacturing | 馃嚝馃嚪 Sarralbe | 199 | |
| 4 | [IRT M2P](https://www.tamtam.ai/c/irt-m2p) (irt-m2p.fr)
Support industrial R&D projects with expertise, equipment, and academic networks in materials, metallurgy, and process development across multiple sectors. | Research Services | 馃嚝馃嚪 Metz | 106 | 2013 |
| 5 | [DAIMAY FRANCE SAS](https://www.tamtam.ai/c/daimay-france-sas)
A Chinese family-owned subsidiary specializing in designing and manufacturing sunshades for the automotive industry since 1975, known for high-quality work for brands like Mercedes-Benz and BMW | Motor Vehicle Parts Manufacturing | 馃嚝馃嚪 Creutzwald | 94 | |
| 6 | [Est Industries](https://www.tamtam.ai/c/est-industries) (est-industries.com)
Specializing in engineering, manufacturing, and maintaining industrial boilers and pressure equipment, offering on-site assembly services | Renewable Energy Equipment Manufacturing | 馃嚝馃嚪 Sarralbe | 81 | 1986 |
| 7 | [AFYREN NEOXY](https://www.tamtam.ai/c/afyren-neoxy) (afyren.com)
Produces 100% biobased acids through a low-carbon, zero-waste biorefinery, serving diverse industrial sectors like food, cosmetics, and pharmaceuticals with sustainable solutions. | Chemical Manufacturing | 馃嚝馃嚪 Saint-Avold | 70 | 2018 |
| 8 | [Testo France](https://www.tamtam.ai/c/testo-france) (testo.com)
Provider of portable and fixed measurement instruments for HVAC, laboratories, industry, and food processing sectors ensuring precise environmental monitoring. | Wholesale | 馃嚝馃嚪 Forbach | 63 | 1979 |
| 9 | [JK Technic](https://www.tamtam.ai/c/jk-technic) (jktechnic.fr)
Manufacture and supply of standard and custom grating products with integrated design support, commercial advice, and fast logistics services. | Wholesale Building Materials | 馃嚝馃嚪 Sarreguemines | 59 | 1996 |
| 10 | [Groupe SOLSI](https://www.tamtam.ai/c/groupe-solsi) (solsi-cad.fr)
The Group provides engineering services in mechanical design, simulation, product development, 3D scanning, and structural analysis to industrial clients worldwide | Industrial Machinery Manufacturing | 馃嚝馃嚪 Hagondange | 56 | 1985 |
| 11 | [EUROMAC2](https://www.tamtam.ai/c/euromac2) (euromac2.com)
A leading European provider of high-performance construction materials with a comprehensive range of solutions for passive construction, catering to professionals and individuals across France and Europe | Construction | 馃嚝馃嚪 Folschviller | 55 | 1976 |
| 12 | [CMS Automatisme](https://www.tamtam.ai/c/cms-automatisme) (cms-automatisme.fr)
Design and manufacture of special machines for assembly, machining, control, welding, handling, including robot and camera integration, mechanical subcontracting. | Machinery Manufacturing | 馃嚝馃嚪 Schweyen | 53 | 1986 |
| 13 | [Ga茂atrend](https://www.tamtam.ai/c/gaiatrend) (gaiatrend.fr)
French company specializing in vaping products, emphasizing health respect and environmental values, established in 2008 in Lorraine region. | Wellness and Fitness Services | 馃嚝馃嚪 Rohrbach-l猫s-Bitche | 52 | 2008 |
| 14 | [ECLAIR INDUSTRIES](https://www.tamtam.ai/c/eclair-industries) (eclairsa.fr)
Specializes in industrial automation, electrotechnical design, and maintenance across agro-food, energy, sustainability, steel, and service sectors internationally. | Automation Machinery Manufacturing | 馃嚝馃嚪 Florange | 47 | 1995 |
| 15 | [KOMPLET FRANCE](https://www.tamtam.ai/c/komplet-france) (complet.fr)
Manufacture and supply of specialty flours, premixes, and technical products for bakery, pastry, catering, and food industry sectors. | Food and Beverage Manufacturing | 馃嚝馃嚪 Forbach | 47 | |
| 16 | [LAPP France](https://www.tamtam.ai/c/lapp-france) (lapp.com)
Leading supplier of wire, cabling, and connector products and solutions for various industries, with a focus on quality, innovation, and global reach | Appliances, Electrical, and Electronics Manufacturing | 馃嚝馃嚪 Forbach | 42 | 2001 |
| 17 | [Kettenbach Dental](https://www.tamtam.ai/c/kettenbach-dental) (kettenbach-dental.com)
Develops and supplies market-leading dental impression and restoration materials, including Panasil, Futar, Identium, and Visalys lines, for dental practices. | Medical Equipment Manufacturing | 馃嚝馃嚪 Sarreguemines | 42 | 1944 |
| 18 | [AML MICROTECHNIQUE LORRAINE](https://www.tamtam.ai/c/aml-microtechnique-lorraine) (aml-microtechnique.com)
French subcontractor specializing in precision machining, design, manufacturing, and integration of passive high-frequency components for aerospace and defense sectors. | Aviation and Aerospace Component Manufacturing | 馃嚝馃嚪 Feves | 41 | 1972 |
| 19 | [Opteamum](https://www.tamtam.ai/c/opteamum) (opteamum.com)
Designing, manufacturing, and maintaining robotic systems for industry and safety with augmented intelligence capabilities | Mechanical Or Industrial Engineering | 馃嚝馃嚪 Sarreguemines | 39 | 2008 |
| 20 | [UTILIS Cover the World](https://www.tamtam.ai/c/utilis-cover-the-world) (utilis-international.com)
Global specialists in designing, supplying, and supporting rapid deploy shelters and camp systems, with expertise in field deployable solutions for various deployments | Defense and Space Manufacturing | 馃嚝馃嚪 Ennery | 35 | 1996 |
| 21 | [TVPaint D茅veloppement](https://www.tamtam.ai/c/tvpaint-developpement) (tvpaint.com)
A company creating innovative tools for CG artists since 1997, offering a unified paperless 2D animation production system and developing solutions for future needs | Software Development | 馃嚝馃嚪 Metz | 25 | 1997 |
| 22 | [STOCKAM Equipements Industriels](https://www.tamtam.ai/c/stockam-equipements-industriels) (stockam-ei.com)
STOCKAM-ei is a national and international leader in storage solutions, offering platforms, technical framework, dynamic storage, and industrial equipment for workspaces | Retail Office Equipment | 馃嚝馃嚪 Schoeneck | 23 | 1989 |
| 23 | [i-Virtual](https://www.tamtam.ai/c/i-virtual) (i-virtual.ai)
Development of AI-driven technology for contactless vital sign measurement, enabling integration via API across multiple industries for health data accessibility. | Software Development | 馃嚝馃嚪 Metz | 22 | 2014 |
| 24 | [Vivoka](https://www.tamtam.ai/c/vivoka) (vivoka.com)
A software company creating Voice Development Kit for simplified development of offline voice AI technologies across various industries | Embedded Software Products | 馃嚝馃嚪 Metz | 20 | 2015 |
| 25 | [Two-i](https://www.tamtam.ai/c/two-i) (two-i.com)
A VCA platform utilizing computer vision, data science, and deep learning for instant alerts, video analysis, search, and interactive data visualization | Software Development | 馃嚝馃嚪 Metz | 15 | 2017 |
| 26 | [B.M.S.](https://www.tamtam.ai/c/b-m-s)
Global biopharmaceutical company focused on discovering, developing, and delivering innovative medicines to help patients overcome serious diseases | Software Development | 馃嚝馃嚪 Thionville | 13 | |
| 27 | [DSW](https://www.tamtam.ai/c/dsw) (dsw-concept.fr)
Designing and manufacturing custom-made special purpose machines | Industrial Machinery Manufacturing | 馃嚝馃嚪 Troisfontaines | 13 | |
| 28 | [Nimesis Technology](https://www.tamtam.ai/c/nimesis-technology) (nimesis.com)
Expertise in shape memory alloys, development and production of smart actuators for aerospace, biomedical, automotive, and various industrial applications. | Aviation and Aerospace Component Manufacturing | 馃嚝馃嚪 M茅cleuves | 12 | 2008 |
| 29 | [M.C.R.](https://www.tamtam.ai/c/m-c-r) (mcr-autom.com)
Specialized company in industrial electricity and automation, offering services in electrical studies, equipment, installations, special machine design, and commissioning | Automation Machinery Manufacturing | 馃嚝馃嚪 Metz | 9 | 1996 |
| 30 | [COMMET Group](https://www.tamtam.ai/c/commet-group) (commet-group.com)
A group specializing in composite and metal solutions, offering engineering to production services across energy, environmental treatment, agro-industry, and chemical sectors | Mechanical Or Industrial Engineering | 馃嚝馃嚪 Ennery | 9 | 2018 |
## 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 12, 2026.
## More company lists in the Moselle department
- [The largest companies in the Moselle department](https://www.tamtam.ai/l/largest-companies-moselle) (505)
- [Multinational companies in the Moselle department](https://www.tamtam.ai/l/multinational-companies-moselle) (76)
- [Manufacturers in the Moselle department](https://www.tamtam.ai/l/manufacturers-moselle) (48)
- [Retail chains in the Moselle department](https://www.tamtam.ai/l/retail-chains-moselle) (46)
- [Public sector organisations in the Moselle department](https://www.tamtam.ai/l/public-sector-organisations-moselle) (41)
- [Critical infrastructure operators in the Moselle department](https://www.tamtam.ai/l/critical-infrastructure-operators-moselle) (31)
- [Professional services firms in the Moselle department](https://www.tamtam.ai/l/professional-services-firms-moselle) (31)
- [Hardware manufacturers in the Moselle department](https://www.tamtam.ai/l/hardware-companies-moselle) (29)
- [Distributors and wholesalers in the Moselle department](https://www.tamtam.ai/l/distributors-and-wholesalers-moselle) (28)
- [Government Administration companies in the Moselle department](https://www.tamtam.ai/l/government-administration-companies-moselle) (25)
- [Family-owned companies in the Moselle department](https://www.tamtam.ai/l/family-owned-companies-moselle) (25)
## The same list elsewhere in France
- [Companies with in-house R&D in France](https://www.tamtam.ai/l/r-and-d-companies-france) (8,749)
- [Companies with in-house R&D in 脦le-de-France](https://www.tamtam.ai/l/r-and-d-companies-ile-de-france) (2,695)
- [Companies with in-house R&D in Auvergne-Rh么ne-Alpes](https://www.tamtam.ai/l/r-and-d-companies-auvergne-rhone-alpes) (1,460)
- [Companies with in-house R&D in Occitanie](https://www.tamtam.ai/l/r-and-d-companies-occitanie) (680)
- [Companies with in-house R&D in Grand Est](https://www.tamtam.ai/l/r-and-d-companies-grand-est) (640)
- [Companies with in-house R&D in Provence-Alpes-C么te d'Azur](https://www.tamtam.ai/l/r-and-d-companies-provence-alpes-cote-dazur) (612)
- [Companies with in-house R&D in Nouvelle-Aquitaine](https://www.tamtam.ai/l/r-and-d-companies-nouvelle-aquitaine) (566)
- [Companies with in-house R&D in the Hauts-de-Seine department](https://www.tamtam.ai/l/r-and-d-companies-hauts-de-seine) (510)
- [Companies with in-house R&D in the Rh么ne department](https://www.tamtam.ai/l/r-and-d-companies-rhone) (509)
- [Companies with in-house R&D in Pays de la Loire](https://www.tamtam.ai/l/r-and-d-companies-pays-de-la-loire) (480)
- [Companies with in-house R&D in Hauts-de-France](https://www.tamtam.ai/l/r-and-d-companies-hauts-de-france) (410)
- [Companies with in-house R&D in Brittany](https://www.tamtam.ai/l/r-and-d-companies-brittany) (366)
- [Companies with in-house R&D in the Haute-Garonne department](https://www.tamtam.ai/l/r-and-d-companies-haute-garonne) (323)
- [Companies with in-house R&D in the Bouches-du-Rh么ne department](https://www.tamtam.ai/l/r-and-d-companies-bouches-du-rhone) (320)
- [Companies with in-house R&D in the Is猫re department](https://www.tamtam.ai/l/r-and-d-companies-isere) (304)
- [Companies with in-house R&D in Bourgogne-Franche-Comt茅](https://www.tamtam.ai/l/r-and-d-companies-bourgogne-franche-comte) (261)
- [Companies with in-house R&D in the Nord department](https://www.tamtam.ai/l/r-and-d-companies-nord) (237)
- [Companies with in-house R&D in Normandy](https://www.tamtam.ai/l/r-and-d-companies-normandy) (227)
- [Companies with in-house R&D in the Gironde department](https://www.tamtam.ai/l/r-and-d-companies-gironde) (225)
- [Companies with in-house R&D in the Loire-Atlantique department](https://www.tamtam.ai/l/r-and-d-companies-loire-atlantique) (207)
- [Companies with in-house R&D in the Essonne department](https://www.tamtam.ai/l/r-and-d-companies-essonne) (198)
- [Companies with in-house R&D in Centre-Val de Loire](https://www.tamtam.ai/l/r-and-d-companies-centre-val-de-loire) (195)
- [Companies with in-house R&D in Paris](https://www.tamtam.ai/l/r-and-d-companies-paris) (1,249)
- [Companies with in-house R&D in Lyon](https://www.tamtam.ai/l/r-and-d-companies-lyon) (192)
## The same list elsewhere
- [Companies with in-house R&D in the world](https://www.tamtam.ai/l/r-and-d-companies-in-the-world) (34,346)
- [Companies with in-house R&D in Europe](https://www.tamtam.ai/l/r-and-d-companies-in-europe) (20,169)
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Source: https://www.tamtam.ai/l/r-and-d-companies-moselle