# List of companies with in-house R&D in the Charente-Maritime department
Tamtam tracks 53 companies with in-house R&D headquartered in the Charente-Maritime department. This list ranks the 30 largest by number of employees on LinkedIn, led by STELIA Aerospace, La Rochelle Université and Excelia. Their median headcount is 63. Half of them were founded in 1993 or later. The most common headquarters are La Rochelle (12), Périgny (7) and Rochefort (3).
This selection of companies with in-house R&D in Charente-Maritime highlights a mix of well-established firms and younger enterprises. The clear emphasis is on manufacturing and higher education, with a strong presence of the shipbuilding and aviation sectors. Companies like STELIA Aerospace, founded in 2015, design and manufacture aircraft cabin interiors, while Fountaine Pajot, established in 1976, builds sailing catamarans and motor yachts. La Rochelle Université and Excelia are key players in higher education.
A notable pattern is the concentration of shipbuilding expertise, with companies such as Dufour and AMEL Yachts, both founded in 1964, specializing in sailing yacht design and construction. There is also a cluster of aviation and aerospace component manufacturers, including Elixir Aircraft, which produces light aircraft. Many of these companies are headquartered in La Rochelle or its surrounding towns like Périgny and Rochefort.
🇫🇷 Charente-Maritime · 30 companies · Updated Nov 11, 2026
| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [STELIA Aerospace](https://www.tamtam.ai/c/stelia-aerospace) (stelia-aerospace.com)
Design and manufacture of premium aircraft cabin interiors, specializing in high-quality passenger seats with a distinctive French design touch. | Aviation and Aerospace Component Manufacturing | 🇫🇷 Rochefort | 1,881 | 2015 |
| 2 | [La Rochelle Université](https://www.tamtam.ai/c/la-rochelle-universite) (univ-larochelle.fr)
Higher education institution offering personalized learning, active research involvement, and strong partnerships with businesses for innovation and development. | Higher Education | 🇫🇷 La Rochelle | 1,213 | 1993 |
| 3 | [Excelia](https://www.tamtam.ai/c/excelia) (excelia-group.com)
Leading higher education group with five schools: business, tourism, digital, academy, and executive education programs. | Higher Education | 🇫🇷 La Rochelle | 1,122 | 1988 |
| 4 | [Fountaine Pajot](https://www.tamtam.ai/c/fountaine-pajot) (fountaine-pajot.com)
Design and construction of high-performance, seaworthy, innovative, and comfortable sailing catamarans and motor yachts for enthusiasts. | Shipbuilding | 🇫🇷 Aigrefeuille-d'Aunis | 355 | 1976 |
| 5 | [Dufour](https://www.tamtam.ai/c/dufour) (dufour-yachts.com)
Design and manufacture of exclusive sailing yachts with customer-focused approach, offering a range of models for yachting enthusiasts worldwide. | Shipbuilding | 🇫🇷 Périgny | 246 | 1964 |
| 6 | [INNOV'IA](https://www.tamtam.ai/c/innov-ia) (innov-ia.com)
Manufacturing various powdered forms of functional ingredients, offering custom solutions in low-temperature spray drying, granulation, micro-encapsulation, prilling, and coating for preservation and property optimization. | Food and Beverage Manufacturing | 🇫🇷 La Rochelle | 192 | 1990 |
| 7 | [Zolux](https://www.tamtam.ai/c/zolux) (zolux.com)
A family group based in France, ZOLUX operates in the pet market with over 90 years of experience, offering essential products for all pet families globally | Manufacturing | 🇫🇷 Saintes | 192 | 1933 |
| 8 | [AMEL Yachts](https://www.tamtam.ai/c/amel-yachts) (amel.fr)
Design and build handcrafted offshore sailing yachts combining craftsmanship, technical innovation, and a passion for safe, elegant, sustainable voyages. | Shipbuilding | 🇫🇷 Périgny | 145 | 1964 |
| 9 | [Elixir Aircraft](https://www.tamtam.ai/c/elixir-aircraft) (elixir-aircraft.com)
Designs and produces the best certified 2-seater light aircraft for training, travel, and leisure purposes, shaping the future of general aviation. | Aviation and Aerospace Component Manufacturing | 🇫🇷 La Rochelle | 125 | 2015 |
| 10 | [Systel-SA](https://www.tamtam.ai/c/systel-sa) (systel-sa.fr)
A company specializing in warning processing and transmission network management, with a focus on continuous improvement, innovation, and strong relationships with users | Telecommunications | 🇫🇷 Aytré | 109 | 1985 |
| 11 | [Shark Robotics](https://www.tamtam.ai/c/shark-robotics) (shark-robotics.com)
Designs and manufactures ground robots for hostile environments, protecting first responders and armed forces in critical situations. Deploys robust, mobile systems. | Public Safety | 🇫🇷 La Rochelle | 80 | 2016 |
| 12 | [Xtrem Santé](https://www.tamtam.ai/c/xtrem-sante) (softwaymedical.fr)
A software company developing the OX Mediboard Hospital Information System, used in over 50 healthcare centers for high-quality electronic patient files | Software Development | 🇫🇷 Périgny | 74 | 2023 |
| 13 | [NAUTITECH Catamarans](https://www.tamtam.ai/c/nautitech-catamarans) (nautitechcatamarans.com)
French company manufacturing 80 catamarans annually, with 250 employees. Exports 80% globally through 50 resellers. | Shipbuilding | 🇫🇷 Rochefort | 73 | 1992 |
| 14 | [CAVOK SARL](https://www.tamtam.ai/c/cavok-sarl)
An aircraft maintenance workshop based in Lapalisse, France, specializing in modifying and integrating embedded systems components for all aircraft categories | Aviation and Aerospace Component Manufacturing | 🇫🇷 Périgny | 70 | 1997 |
| 15 | [Valbiotis](https://www.tamtam.ai/c/valbiotis) (valbiotis.com)
A research & development company focused on innovation in health nutrition products to prevent metabolic and cardiovascular diseases using plant-based resources | Pharmaceutical Manufacturing | 🇫🇷 Périgny | 63 | 2014 |
| 16 | [Selenium Medical](https://www.tamtam.ai/c/selenium-medical) (selenium-medical.com)
Specialized technical consultancy in clean room injection, surface treatment, and sterile packaging for medical devices, focused on innovation and customer satisfaction. | Packaging and Containers Manufacturing | 🇫🇷 La Rochelle | 59 | 2009 |
| 17 | [Imeca](https://www.tamtam.ai/c/imeca) (imeca-reel.com)
Design and supply of lifting, handling, and integrated systems for offshore energy production and bulk handling infrastructure projects. | Oil and Gas | 🇫🇷 La Rochelle | 56 | 1946 |
| 18 | [ImaginAir](https://www.tamtam.ai/c/imaginair) (imaginair.eu)
Design, manufacture, and support aircraft cabin equipment for manufacturers, airlines, lessors, and maintenance companies, specializing in modular composite solutions. | Aviation and Aerospace Component Manufacturing | 🇫🇷 Rochefort | 54 | 1979 |
| 19 | [Laboratoire LESCUYER](https://www.tamtam.ai/c/laboratoire-lescuyer) (laboratoire-lescuyer.com)
Formulation and supply of natural micronutrition supplements including vitamins, minerals, probiotics, essential fatty acids, and plant extracts for health professionals. | Wellness and Fitness Services | 🇫🇷 Sainte-Soulle | 50 | 1994 |
| 20 | [CAMPUS DE L'ALIMENTATION ENILIA ENSMIC](https://www.tamtam.ai/c/campus-de-l-alimentation-enilia-ensmic) (campus-alimentation.fr)
ENILIA-ENSMIC offers 200 years of experience in training and research in the food industry, providing specialized programs, technical equipment, and research facilities | Food and Beverage Manufacturing | 🇫🇷 Surgères | 48 | |
| 21 | [INCIDENCE SAILS](https://www.tamtam.ai/c/incidence-sails) (incidence-sails.com)
Design and manufacture custom sails for various boats including racing yachts, cruisers, superyachts, and cargo sail ships with innovative materials. | Sporting Goods Manufacturing | 🇫🇷 Périgny | 48 | 1988 |
| 22 | [NEEL-TRIMARANS GROUP](https://www.tamtam.ai/c/neel-trimarans-group) (neel-trimarans.com)
Design and build cruising trimarans in La Rochelle with a team of 120 skilled, experienced, and efficient employees. | Shipbuilding | 🇫🇷 La Rochelle | 47 | 2009 |
| 23 | [LIS France SAS](https://www.tamtam.ai/c/lis-france-sas) (lis.eu)
The company provides proven TMS solutions for transport and logistics companies, offering automated planning and streamlined operations to help businesses succeed | Software Development | 🇫🇷 Périgny | 46 | 1980 |
| 24 | [Raccourci (Groupe Yoni)](https://www.tamtam.ai/c/raccourci-groupe-yoni) (raccourci.fr)
Develops digital ecosystems and innovative tools enhancing tourist experience, marketing, e-reputation, and digital transformation for over 500 destinations. | Technology, Information and Internet | 🇫🇷 La Rochelle | 44 | 1999 |
| 25 | [Tonnellerie Radoux](https://www.tamtam.ai/c/tonnellerie-radoux) (radoux.fr)
Specializes in premium oak barrels and vats, combining traditional craftsmanship with advanced wood selection and precise toasting techniques. | Beverage Manufacturing | 🇫🇷 Jonzac | 43 | 1947 |
| 26 | [Soöruz Surfwear](https://www.tamtam.ai/c/sooruz-surfwear) (surfwear.sooruz.com)
Design and manufacture of sustainable, high-performance surfwear and accessories tailored for various water sports and rider needs. | Sporting Goods Manufacturing | 🇫🇷 La Rochelle | 39 | 1999 |
| 27 | [FIB Belgium S.A.](https://www.tamtam.ai/c/fib-belgium-s-a) (fib-group.com)
A Brussels based company founded in 1936 specializing in designing industrial furnaces for the steel wire industry, as well as supplying heating equipment to various other sectors globally | Industrial Machinery Manufacturing | 🇫🇷 Saintes | 39 | 1936 |
| 28 | [Aquarium La Rochelle](https://www.tamtam.ai/c/aquarium-la-rochelle) (aquarium-larochelle.com)
Large European aquarium hosting 800,000 visitors annually, offering marine life education, scientific research, species reproduction, and biodiversity conservation. | Museums, Historical Sites, and Zoos | 🇫🇷 La Rochelle | 37 | |
| 29 | [EDEN PROMOTION](https://www.tamtam.ai/c/eden-promotion) (bit.ly)
Develops and builds sustainable, low-carbon real estate projects, integrating bio-sourced materials, energy self-consumption, and innovative housing solutions for accessible, community-focused living. | Real Estate | 🇫🇷 La Rochelle | 34 | 2008 |
| 30 | [Tipee](https://www.tamtam.ai/c/tipee-lagord) (plateforme-tipee.com)
Tipee is a center of expertise specializing in sustainable building, providing solutions for all stakeholders in the construction industry with a focus on innovation and environmental responsibility | Technical and Vocational Training | 🇫🇷 Lagord | 34 | 2016 |
## 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 Charente-Maritime department
- [The largest companies in the Charente-Maritime department](https://www.tamtam.ai/l/largest-companies-charente-maritime) (444)
- [Retail chains in the Charente-Maritime department](https://www.tamtam.ai/l/retail-chains-charente-maritime) (57)
- [Manufacturers in the Charente-Maritime department](https://www.tamtam.ai/l/manufacturers-charente-maritime) (39)
- [Multinational companies in the Charente-Maritime department](https://www.tamtam.ai/l/multinational-companies-charente-maritime) (36)
- [Public sector organisations in the Charente-Maritime department](https://www.tamtam.ai/l/public-sector-organisations-charente-maritime) (33)
- [Professional services firms in the Charente-Maritime department](https://www.tamtam.ai/l/professional-services-firms-charente-maritime) (26)
## 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)
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Source: https://www.tamtam.ai/l/r-and-d-companies-charente-maritime