# The 30 largest companies with in-house R&D in the Pas-de-Calais department Tamtam tracks 41 companies with in-house R&D headquartered in the Pas-de-Calais department. This list ranks the 30 largest by number of employees on LinkedIn, led by Roquette, Intech and Staphyt. Their median headcount is 76. Half of them were founded in 1968 or later. The most common headquarters are Lens (2). This selection of companies in Pas-de-Calais with in-house R&D includes a mix of mid-sized and smaller firms. Many operate in manufacturing, particularly in food, chemicals, and industrial machinery. Roquette, with nearly 6,000 employees, transforms agricultural raw materials into ingredients for various industries. Ingredia Dairy Experts produces innovative dairy ingredients, while Stolz specializes in processing solid materials for animal nutrition and agri-food. The list also features companies like Staphyt, which offers agrosciences field experimentation and regulatory advice, and REDISON, a younger firm founded in 2017 that provides solutions for learning drums. This demonstrates a diverse R&D landscape, encompassing both traditional industrial sectors and more specialized services and products. 🇫🇷 Pas-de-Calais · 30 companies · Updated Nov 11, 2026 | # | Company | Industry | Headquarters | Employees | Founded | |---|---|---|---|---|---| | 1 | [Roquette](https://www.tamtam.ai/c/roquette) (roquette.com)
Transformation of wheat, corn, and seaweed into high-performance ingredients for food, medications, biopharmaceuticals, and various bio-based products to serve global consumer needs. | Manufacturing | 🇫🇷 Lestrem | 5,949 | 1933 | | 2 | [Intech](https://www.tamtam.ai/c/intech) (intech-medical.com)
Now Exalta, follow Exalta Group's LinkedIn profile for current information about the company's activities and offerings. No further information provided here. | Medical Equipment Manufacturing | 🇫🇷 Rang-du-Fliers | 500 | | | 3 | [Staphyt](https://www.tamtam.ai/c/staphyt) (staphyt.com)
A multinational company with 700 employees in Europe, North Africa, and Brazil, specializing in agrosciences field experimentation, laboratory testing, regulatory advice, and registration dossier management | Research Services | 🇫🇷 Inchy-en-Artois | 345 | 1989 | | 4 | [REDISON](https://www.tamtam.ai/c/redison) (redison.com)
The company offers accessible and innovative solutions for learning drums to help individuals progress faster in their musical journey | Retail | 🇫🇷 Lens | 250 | 2017 | | 5 | [Ingredia Dairy Experts](https://www.tamtam.ai/c/ingredia-dairy-experts) (ingredia.com)
French dairy cooperative producing innovative dairy ingredients for food, nutrition, and health industries, using soft technologies to offer native products worldwide. | Food and Beverage Manufacturing | 🇫🇷 Arras | 244 | 1991 | | 6 | [MK Energies](https://www.tamtam.ai/c/mk-energies) (mk-energies.fr)
Specialist in global energy solutions, offering expertise in electrotechnical, control systems, automation, testing, maintenance, and training Unique integrator for complex projects | Engineering Services | 🇫🇷 Saint-Léonard | 224 | 2013 | | 7 | [Stolz](https://www.tamtam.ai/c/stolz) (desmet.com)
Specializing in solid material processing, providing complete solutions for industries to store, handle, and transform raw materials into finished products for sectors like animal nutrition and agri-food | Industrial Machinery Manufacturing | 🇫🇷 Wailly-Beaucamp | 186 | 1952 | | 8 | [INTEROR](https://www.tamtam.ai/c/interor) (interor.com)
Chemicals company specializing in manufacturing and distributing chemical products, based in Calais, Nord-Pas-de-Calais, France. | Chemical Manufacturing | 🇫🇷 Calais | 162 | | | 9 | [Groupe Carré - Négociant en grains](https://www.tamtam.ai/c/groupe-carre-negociant-en-grains) (groupe-carre.fr)
Leading independent agricultural trading company in France with 200 employees, 4500 clients, €430M revenue, and 900,000 tons of grain collection Specializing in agro-supply and seed sorting | Farming | 🇫🇷 Gouy-sous-Bellonne | 126 | 1930 | | 10 | [Cermix](https://www.tamtam.ai/c/cermix) (cermix.com)
A leading French company specializing in mortar solutions for the building industry, offering innovative products for tiling, construction, repair, and waterproofing projects | Wholesale Building Materials | 🇫🇷 Desvres | 122 | 1863 | | 11 | [FANDI](https://www.tamtam.ai/c/fandi) (fandi.fr)
With over 30 years of experience, the company provides B2B packaging, distribution, and logistics services, specializing in blister packaging, flowpack, plastic film, and cardboard manufacturing They offer end-to-end packaging solutions and logistics services for distribution optimization | Business Consulting and Services | 🇫🇷 Carvin | 120 | 1989 | | 12 | [Acime Frame](https://www.tamtam.ai/c/acime-frame) (acimeframe.com)
Design and manufacture mobile medical equipment including stretchers, chairs, couches, and screens focused on patient comfort and caregiver usability. | Medical Equipment Manufacturing | 🇫🇷 Rinxent | 95 | 1990 | | 13 | [DBT-CEV](https://www.tamtam.ai/c/dbt-cev) (dbt.fr)
A French industrial group specializing in energy distribution, offering products for energy access and electric vehicle charging solutions, along with professional training services | Truck Transportation | 🇫🇷 Brebières | 94 | 1992 | | 14 | [HUWER Group](https://www.tamtam.ai/c/huwer-group) (huwer.com)
Huwer Group designs and manufactures heavy-duty sanitation equipment for pumping and pipe inspection, with a focus on quality and reliability | Environmental Services | 🇫🇷 Ruitz | 87 | 1968 | | 15 | [SBE France](https://www.tamtam.ai/c/sbe-france) (france.sbeglobalservice.com)
A leading mobile phone repair centre in Europe, offering comprehensive aftermarket services for telecommunications and consumer electronics sectors worldwide | Appliances, Electrical, and Electronics Manufacturing | 🇫🇷 Saint-Léonard | 76 | 2000 | | 16 | [MAXEI](https://www.tamtam.ai/c/maxei) (maxei.fr)
A French industrial company specializes in custom machines & equipment manufacturing, precision machining, with integrated production and worldwide presence | Industrial Machinery Manufacturing | 🇫🇷 Monchy-le-Preux | 76 | 1898 | | 17 | [PEME GOURDIN](https://www.tamtam.ai/c/peme-gourdin) (peme-gourdin.com)
Design, manufacture, and renovate durable industrial centrifugal pumps for water, industry, and energy sectors with a focus on reliability and energy efficiency. | Industrial Machinery Manufacturing | 🇫🇷 Gonnehem | 71 | 1947 | | 18 | [Groupe BERNHARDT DELTASACS](https://www.tamtam.ai/c/groupe-bernhardt-deltasacs) (bernhardt.fr)
Design flexible packaging and manufacture packing machines for food, pharmaceuticals, and chemicals with focus on innovation, quality, and traceability. | Packaging and Containers Manufacturing | 🇫🇷 Wimille | 67 | 1956 | | 19 | [SOCARENAM](https://www.tamtam.ai/c/socarenam) (socarenam.com)
With nearly 60 years of experience, SOCARENAM adapts to meet the specific needs of ship owners, delivering over 300 fully-built vessels with a skilled team of 250 experts | Shipbuilding | 🇫🇷 Boulogne-sur-Mer | 66 | 1961 | | 20 | [SAFILIN](https://www.tamtam.ai/c/safilin) (safilin.fr)
Leading producer of yarns, strings, and rovings from European flax and hemp, innovating in knitting and textile reinforcements for industrial clients. | Textile Manufacturing | 🇫🇷 Sailly-sur-la-Lys | 65 | 1778 | | 21 | [LCI group \| Loos Chaudière Industrielle](https://www.tamtam.ai/c/lci-group-loos-chaudiere-industrielle) (lci-group.fr)
Design and installation of customized industrial boilers for steam, hot water, and superheated water with comprehensive after-sales support. | Machinery Manufacturing | 🇫🇷 Carvin | 58 | 2000 | | 22 | [Fapmo](https://www.tamtam.ai/c/fapmo) (fapmo.com)
Specializing in tailor-made centrifugal pumps for a variety of industries, including navies, nuclear facilities, energy, and mines, through innovation and co-conception with customers | Industrial Machinery Manufacturing | 🇫🇷 Outreau | 57 | 1923 | | 23 | [CARLIER PLASTIQUES & COMPOSITES](https://www.tamtam.ai/c/carlier-plastiques-and-composites) (carlier-plastiques.com)
Design and manufacture composite material panels for truck trailer construction, focusing on quality, innovation, and customized solutions. | Plastics Manufacturing | 🇫🇷 Calonne-Ricouart | 56 | 1957 | | 24 | [RMR](https://www.tamtam.ai/c/rmr) (rmr-industries.com)
For over 50 years, the company provides high-end global services including engineering, machining, software sales, and training, with a focus on client satisfaction | IT Services and IT Consulting | 🇫🇷 Billy-Berclau | 44 | 1969 | | 25 | [ETCI - CEDRES INDUSTRIES](https://www.tamtam.ai/c/etci-cedres-industries) (etci-ci.com)
Specializing in industrial piping and boiler making, creating custom pieces in stainless steel and carbon steel for various industries nationally and internationally | Manufacturing | 🇫🇷 Lens | 44 | 1965 | | 26 | [FROMFROID](https://www.tamtam.ai/c/fromfroid) (fromfroid.com)
Specializing in air conditioning and cooling systems for the food industry, this French company offers patented high-efficiency cooling tunnels and air conditioners for optimal product preservation | Industrial Machinery Manufacturing | 🇫🇷 Isques | 37 | 1973 | | 27 | [OLEXA](https://www.tamtam.ai/c/olexa) (olexapress.com)
A leading French company that designs and manufactures systems for extracting oil and fat, providing customized solutions globally since 1927 | Machinery Manufacturing | 🇫🇷 Feuchy | 31 | 1927 | | 28 | [Creatique Technologie SAS](https://www.tamtam.ai/c/creatique-technologie-sas) (creatique-technologie.com)
Specialist in industrial test connectors, test systems, machining, and ERP software serving automotive, aeronautics, railways, and electronics industries. | Manufacturing | 🇫🇷 Billy-Berclau | 31 | 1979 | | 29 | [POITTEMILL - FORPLEX](https://www.tamtam.ai/c/poittemill-forplex) (poittemill.com)
Specializing in powder processing technologies, this French company provides sustainable solutions for particle size reduction, drying, and classification across various industries globally | Industrial Machinery Manufacturing | 🇫🇷 Béthune | 30 | 1933 | | 30 | [MECASOKA](https://www.tamtam.ai/c/mecasoka) (mecasoka.fr)
A mechanical and industrial engineering company located in France, specializing in engineering solutions for various industries | Industrial Machinery Manufacturing | 🇫🇷 Saint-Laurent-Blangy | 28 | 2001 | ## 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 Pas-de-Calais department - [The largest companies in the Pas-de-Calais department](https://www.tamtam.ai/l/largest-companies-pas-de-calais) (567) - [Retail chains in the Pas-de-Calais department](https://www.tamtam.ai/l/retail-chains-pas-de-calais) (60) - [Manufacturers in the Pas-de-Calais department](https://www.tamtam.ai/l/manufacturers-pas-de-calais) (55) - [Multinational companies in the Pas-de-Calais department](https://www.tamtam.ai/l/multinational-companies-pas-de-calais) (53) - [Family-owned companies in the Pas-de-Calais department](https://www.tamtam.ai/l/family-owned-companies-pas-de-calais) (47) - [Distributors and wholesalers in the Pas-de-Calais department](https://www.tamtam.ai/l/distributors-and-wholesalers-pas-de-calais) (43) - [Public sector organisations in the Pas-de-Calais department](https://www.tamtam.ai/l/public-sector-organisations-pas-de-calais) (42) - [Critical infrastructure operators in the Pas-de-Calais department](https://www.tamtam.ai/l/critical-infrastructure-operators-pas-de-calais) (33) - [Food and Beverage Manufacturing companies in the Pas-de-Calais department](https://www.tamtam.ai/l/food-and-beverage-manufacturing-companies-pas-de-calais) (32) - [Healthcare providers in the Pas-de-Calais department](https://www.tamtam.ai/l/healthcare-providers-pas-de-calais) (26) - [Government Administration companies in the Pas-de-Calais department](https://www.tamtam.ai/l/government-administration-companies-pas-de-calais) (25) - [Professional services firms in the Pas-de-Calais department](https://www.tamtam.ai/l/professional-services-firms-pas-de-calais) (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) (8,750) - [Companies with in-house R&D in Île-de-France](https://www.tamtam.ai/l/r-and-d-companies-ile-de-france) (2,695) - [Companies with in-house R&D in Auvergne-Rhône-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-Côte d'Azur](https://www.tamtam.ai/l/r-and-d-companies-provence-alpes-cote-dazur) (613) - [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 Rhône 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-Rhône department](https://www.tamtam.ai/l/r-and-d-companies-bouches-du-rhone) (321) - [Companies with in-house R&D in the Isère department](https://www.tamtam.ai/l/r-and-d-companies-isere) (304) - [Companies with in-house R&D in Bourgogne-Franche-Comté](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) --- Source: https://www.tamtam.ai/l/r-and-d-companies-pas-de-calais