This selection of companies with in-house R&D in Centre-Val de Loire represents a mix of public institutions and private firms, ranging from large employers to mid-sized operations. The region features established players in manufacturing and specialized services.
Key companies include ALL Circuits, a leading EMS provider in electronics manufacturing, and Plastivaloire, a European manufacturer of plastic components for motor vehicles. Antea Group - France offers environmental engineering and consulting, while Alstef Group designs automated solutions for airports and logistics. LVMH RECHERCHE focuses on cosmetic product development, and AUXITROL WESTON specializes in aerospace sensors. The presence of both universities and hospitals alongside industrial firms indicates a diverse R&D landscape.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Université d'Orléansuniv-orleans.fr
Public university offering diverse academic programs and conducting research within the Orléans and Tours educational region in France. |
1,600 | |||
| 2 |
CHU Orléanschu-orleans.fr
State-of-the-art university hospital located 1 hour south of Paris with 1,300 beds, modern facilities, and a staff of 5,323 professionals Located 10km from downtown Orléans |
1,368 | |||
| 3 |
ALL Circuitsallcircuits.com
Leading EMS provider specializing in automotive and industrial manufacturing, offering high-quality electronics design, industrialization, and manufacturing services globally with a strong focus on innovation and quality |
1,154 | |||
| 4 |
Eurofeueurofeu.fr
Eurofeu manufactures and distributes certified fire extinguishers, with a focus on innovation and sustainability, leading in the French fire safety market #letssharetheflame |
1,153 | |||
| 5 |
Antea Group - Franceanteagroup.fr
Provides environmental engineering and consulting services globally, focusing on water, industrial environments, infrastructure, and environmental data management for diverse clients. |
808 | |||
| 6 |
Plastivaloiregroupe-plastivaloire.com
European manufacturer designing and producing plastic components including cockpits, front-end modules, and engine parts for motor vehicles through regional engineering and industrial facilities. |
786 | |||
| 7 |
Alstef Groupalstefgroup.com
Designs, integrates, and supports automated turnkey solutions for airports, intralogistics, and parcel markets, offering baggage handling and internal logistics flow management. |
727 | |||
| 8 |
Cryostarcryostar.com
Expert in cryogenic rotating machines and solutions for medical, industrial gas, natural gas, hydrogen, and clean energy applications. |
705 | |||
| 9 |
LVMH RECHERCHElvmh.com
Creates exceptional makeup, skincare, and perfume products for LVMH luxury brands, focusing on performance, sensoriality, and environmental respect through advanced research and open innovation. |
398 | |||
| 10 |
Voltalisvoltalis.com
Develops technology to optimize electricity consumption, reduce energy use, relieve power grids, and avoid polluting power stations, primarily through connected thermostats offered to consumers. |
369 | |||
| 11 |
CAILLAUcaillau.com
Leading tier 1 supplier of stainless steel sealing clamps for automotive and aerospace industries, with unique expertise in international growth and product development |
367 | |||
| 12 |
AUXITROL WESTONauxitrolweston.com
Global leader in aerospace sensors manufacturing, offering high precision solutions for aeronautics, defense, and industrial sectors with responsive aftersales support worldwide |
345 | |||
| 13 |
Paragon IDparagon-id.com
A leader in identification solutions using RFID and NFC technologies, offering smart cards, tickets, labels, and tags to diverse markets worldwide |
305 | |||
| 14 | 292 | ||||
| 15 |
CENTRE HOSPITALIER REGIONAL D'ORLEANS
A medical practice company in Orleans, France, providing healthcare services at a regional hospital |
290 | |||
| 16 |
l'INSA Centre Val de Loireinsa-centrevaldeloire.fr
The company provides engineering education in various specialties such as industrial risk management, IT security, industrial systems engineering, and energy/environmental engineering, including landscape design |
273 | |||
| 17 |
ERBCerbc-group.com
Providing innovative in vitro and in vivo translational models and consultancy to improve preclinical research and de-risk drug development. |
270 | |||
| 18 | 267 | ||||
| 19 |
Groupe GOYERgoyer.fr
Designs, manufactures, and installs high-quality building facades, including aluminum facades and exterior glazing, for diverse architectural projects. |
260 | |||
| 20 |
Idec - Groupe IDECidec-ingenierie.com
Design and construction of custom turnkey logistics and commercial buildings, ensuring quality, deadlines, pricing, and after-sales service. |
259 | |||
| 21 |
LACOUR GROUPgroupe-lacour.fr
Develops and markets intelligent applications, business software packages, and connected paint scales for automotive aftermarket professionals, supporting their digital transformation. |
247 | |||
| 22 |
DWSdws-engraving.com
Specializes in engraving machines for luxury brands, enabling personalized product customization across various materials and retail environments. |
233 | |||
| 23 |
Vermonvermon.com
Designs, manufactures, and controls ultrasound transducers and arrays for medical and industrial applications, supporting diagnostic modalities with superior imaging performances. |
227 | |||
| 24 |
REDEX Groupredex-group.com
European engineering group specializing in advanced solutions for high precision industries, focused on machine drives, strip processing technologies, and precision rolling mills, with a fully European-made product portfolio |
226 | |||
| 25 |
CHRYSO Francechryso.fr
Development of concrete additives, decorative concrete processes, digital solutions, and innovative technologies for sustainable construction materials. |
222 | |||
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. | |||||
| 26 |
BEG Ingénieriebeg-ing.com
Engineering and architectural services for commercial real estate, industrial facilities, and healthcare institutions across Europe and North Africa. |
218 | |||
| 27 | 215 | ||||
| 28 |
DELPHARM SAINT REMYdelpharm.com
Leading European contract manufacturer producing various forms of medicines with high quality, punctuality, and economic balance for global pharmaceutical labs. |
215 | |||
| 29 |
MONIN Europe Middle-East Africamonin.us
Premium French brand offering innovative syrups, fruit mixes, sauces, liqueurs, and smoothies with authentic taste and quality. |
200 | |||
| 30 |
GUINAULTguinault.com
An international company based in France providing innovative solutions for the aviation industry, reducing environmental impact and operating costs for airlines worldwide |
185 | |||
| 31 |
GROUPE LATTYlatty.com
Manufacturing sealing solutions, gaskets, and mechanical seals for mining, oil & gas, energy, chemical, and agribusiness industries worldwide. |
175 | |||
| 32 |
ADIWATTadiwatt.com
Designs, manufactures, installs metal structures and integration systems for solar power plants like carports, rooftop, ground-mounted systems for photovoltaic professionals. |
165 | |||
| 33 |
Olon Francegtp-bioways.com
Leading contract development and manufacturing organization specializing in tailor-made process development and manufacturing for biologics, antibody–drug conjugates, and nanomedicines. |
158 | |||
| 34 |
DELPHARM ORLEANSdelpharm.com
Acquired by Delpharm in 2019, this site specializes in manufacturing liquid and solid pharmaceutical forms, including mouthwashes, syrups, tablets, and sachets |
158 | |||
| 35 |
DELPHARM TOURSdelpharm.com
A major player in pharmaceutical contract manufacturing, with a focus on employee growth and quality, serving global pharmaceutical laboratories |
142 | |||
| 36 |
GFP_techgfptechnologies.fr
Development of comprehensive SaaS software for medical insurance and risk management, including CRM, BI, and mobile applications. |
139 | |||
| 37 |
Look Uplookupspace.com
Provides advanced space situational awareness and operations services, using radar technology and data analytics for satellite protection and space traffic management. |
139 | |||
| 38 |
Socofer Francesocofer.com
A company established in 1920 specializing in infrastructure, traction, services, and tooling for railway maintenance and manufacturing processes |
134 | |||
| 39 | 127 | ||||
| 40 |
SACRED GROUPsacredgroup.com
A company in the Rubber & Polymers industry with global presence, specialized in designing, selling raw materials, and producing parts for automotive OEMs |
126 | |||
| 41 |
CBEcbe-tunnels.com
specialized engineering and manufacturing of steel moulds and automated plants for precast concrete tunnel segment production worldwide |
123 | |||
| 42 |
LESTRAlestra.com
A leading French bedding manufacturer since 1914, specialized in comfort & safety through innovative, eco-friendly products such as comforters, pillows, and sleeping bags |
120 | |||
| 43 |
MULLER AUTOMOTIVEmullerautomotive.fr
Design and manufacture vehicle inspection equipment including measurement chains, pollution control devices, and mobile stations with global customer support and maintenance services. |
115 | |||
| 44 |
NOVINTECnovintec.com
A manufacturer of components, modules, and sub-systems for Aerospace, Process Industries, Motorsport, Space programs, and Nuclear industries, focusing on continuous improvement and R&D |
113 | |||
| 45 |
ASB Aerospatiale Batteriesasb-group.com
Specializing in designing, producing, and selling thermal batteries for high-tech industries, leveraging expertise in defense power supplies for various sectors like aerospace and space |
112 | |||
| 46 |
BARAT Groupbarat.com
International supplier for the Railway Industry, offering turnkey solutions for interiors, doors, partition walls, windows, and carbody fittings Emphasizes teamwork and continuous investment |
112 | |||
| 47 |
VERGNETvergnet.com
Specializing in renewable energy solutions, they provide unique technologies for off-grid networks, controlling energy production and ensuring reliability in harsh environments worldwide |
109 | |||
| 48 |
Fillon Technologiesfillontech.com
Designs and manufactures advanced paint mixing machines, spray gun washers, and aerosol fillers for automotive bodyshop repair worldwide. |
108 | |||
| 49 |
Beirens SASbeirens.fr
Design, manufacture, install, and maintain industrial exhaust systems including chimneys, ducts, acoustic treatment, access, energy recovery, and filtration worldwide. |
99 | |||
| 50 | 93 | ||||
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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 12, 2026.
More company lists in Centre-Val de Loire
- The largest companies in Centre-Val de Loire 1,701
- Manufacturers in Centre-Val de Loire 207
- Multinational companies in Centre-Val de Loire 170
- Retail chains in Centre-Val de Loire 164
- Hardware manufacturers in Centre-Val de Loire 128
- Public sector organisations in Centre-Val de Loire 121
- Contract manufacturers in Centre-Val de Loire 105
- Family-owned companies in Centre-Val de Loire 103
- Distributors and wholesalers in Centre-Val de Loire 98
- Critical infrastructure operators in Centre-Val de Loire 87
- Professional services firms in Centre-Val de Loire 83
- Healthcare providers in Centre-Val de Loire 66
- Industrial Machinery Manufacturing companies in Centre-Val de Loire 66
- IT services companies in Centre-Val de Loire 65
- Government Administration companies in Centre-Val de Loire 64
- Retail companies in Centre-Val de Loire 56
- Education providers in Centre-Val de Loire 54
- Aerospace and defence companies in Centre-Val de Loire 53
- Real Estate companies in Centre-Val de Loire 53
- Food and Beverage Manufacturing companies in Centre-Val de Loire 51
- IT Services and IT Consulting companies in Centre-Val de Loire 49
- Consulting firms in Centre-Val de Loire 48
- Consumer goods companies in Centre-Val de Loire 44
- Financial services firms in Centre-Val de Loire 42
The same list elsewhere in France
- Companies with in-house R&D in France 8,749
- 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 612
- 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 320
- 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 Paris 1,249
- Companies with in-house R&D in Lyon 192
- Companies with in-house R&D in Toulouse 172