# 30 leading companies with in-house R&D in Paris
Tamtam tracks 1,249 companies with in-house R&D headquartered in Paris. This list ranks the 30 largest by number of employees on LinkedIn, led by LVMH, L'Or茅al and Sanofi. Their median headcount is 17,000. Half of them were founded in 1954 or later.
These Parisian companies with in-house R&D are primarily large, established groups across diverse sectors. They include luxury goods with LVMH and Kering, both crafting high-end products. Sanofi researches and develops medicines, while EDF builds a net-zero energy future with electricity. EssilorLuxottica designs and manufactures vision care products, and Safran operates in aviation and aerospace.
The data shows a concentration of headquarters in Paris itself, with all listed companies based in the city. The companies represent a mix of manufacturing, including personal care, pharmaceutical, and automotive parts, alongside services like environmental management from SUEZ and market research from Ipsos.
馃嚝馃嚪 Paris 路 30 companies 路 Updated Nov 11, 2026
| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [LVMH](https://www.tamtam.ai/c/lvmh) (lvmh.com)
World leader in luxury goods, crafting high-end products across wines, fashion, cosmetics, jewelry, and selective distribution with 75 iconic brands. | Retail Luxury Goods and Jewelry | 馃嚝馃嚪 Paris | 150,393 | |
| 2 | [L'Or茅al](https://www.tamtam.ai/c/l-oreal) (loreal.com)
Develops and sells a diverse portfolio of cosmetic and skincare products, aiming to innovate and cater to a billion consumers globally. | Personal Care Product Manufacturing | 馃嚝馃嚪 Paris | 95,229 | 1909 |
| 3 | [Sanofi](https://www.tamtam.ai/c/sanofi) (sanofi.com)
Researching, developing, and delivering medicines and vaccines, addressing urgent healthcare challenges through science, improving people's lives globally. | Pharmaceutical Manufacturing | 馃嚝馃嚪 Paris | 93,336 | |
| 4 | [EDF](https://www.tamtam.ai/c/edf-paris) (edf.fr)
builds a net-zero energy future with electricity, innovative solutions, and services, to help save the planet and drive wellbeing and economic development. | Electric Power Generation | 馃嚝馃嚪 Paris | 93,235 | |
| 5 | [EssilorLuxottica](https://www.tamtam.ai/c/essilorluxottica) (essilorluxottica.com)
Design, manufacture, and distribution of advanced vision care products, including iconic eyewear brands, luxury licensed frames, innovative lens technologies, and medical diagnostic instruments. | Manufacturing | 馃嚝馃嚪 Paris | 76,080 | |
| 6 | [Safran](https://www.tamtam.ai/c/safran-521777) (safran-group.com)
International high-technology group, operating in aviation propulsion, equipment, interiors, defense, and space markets for a safer, more sustainable world. | Aviation and Aerospace Component Manufacturing | 馃嚝馃嚪 Paris | 73,902 | 2005 |
| 7 | [Danone](https://www.tamtam.ai/c/danone) (danone.com)
Global food leader, focusing on dairy, plant-based, waters, and specialized nutrition, promoting health and sustainability with iconic brands. | Food and Beverage Manufacturing | 馃嚝馃嚪 Paris | 70,424 | |
| 8 | [Air Liquide](https://www.tamtam.ai/c/air-liquide) (airliquide.com)
A global leader in gases, technologies, and services for industry and health, focusing on innovation and sustainability for a better future | Chemical Manufacturing | 馃嚝馃嚪 Paris | 40,100 | |
| 9 | [Kering](https://www.tamtam.ai/c/kering) (kering.com)
Home to creative Houses across ready-to-wear, leather goods, jewelry, eyewear, and beauty. Designs exceptional products and experiences, committed to excellence. | Retail Luxury Goods and Jewelry | 馃嚝馃嚪 Paris | 38,919 | |
| 10 | [Greater Paris University Hospitals - AP-HP](https://www.tamtam.ai/c/greater-paris-university-hospitals-ap-hp) (aphp.fr)
Manages 39 university hospitals in Greater Paris, treating 8 million people annually through consultations, emergencies, and hospitalizations, providing public healthcare around the clock. | Hospitals and Health Care | 馃嚝馃嚪 Paris | 38,756 | 1849 |
| 11 | [Valeo](https://www.tamtam.ai/c/valeo) (valeo.com)
Develops leading automotive technology solutions including electrification, ADAS, in-cabin experiences, and lighting, partnering with automakers and mobility players globally, leveraging AI for innovation. | Motor Vehicle Parts Manufacturing | 馃嚝馃嚪 Paris | 37,833 | 1923 |
| 12 | [SUEZ](https://www.tamtam.ai/c/suez) (suez.com)
Provides essential water and waste management services to protect natural resources and improve quality of life for global communities and ecosystems. | Environmental Services | 馃嚝馃嚪 Paris | 26,423 | |
| 13 | [Ipsos](https://www.tamtam.ai/c/ipsos) (ipsos.com)
Ipsos provides accurate and relevant information to help clients make confident decisions, shaping precise measurement into actionable insights for success | Market Research | 馃嚝馃嚪 Paris | 19,037 | 1975 |
| 14 | [Technip Energies](https://www.tamtam.ai/c/technip-energies) (ten.com)
Leading energy engineering & technology company focused on LNG, hydrogen, ethylene, sustainable chemistry, and CO2 management Committed to accelerating the energy transition globally | Engineering Services | 馃嚝馃嚪 Paris | 18,645 | |
| 15 | [Capgemini Invent](https://www.tamtam.ai/c/capgemini-invent) (capgemini.com)
Digital innovation, consulting, and transformation services combining strategy, technology, data science, and creative design to help businesses envision and build the future | Business Consulting and Services | 馃嚝馃嚪 Paris | 17,000 | |
| 16 | [Christian Dior Couture](https://www.tamtam.ai/c/christian-dior-couture) (dior.com)
Designs and sells luxury fashion, upholding a heritage of creativity and savoir-faire through empowered artistry for clients worldwide. | Retail Luxury Goods and Jewelry | 馃嚝馃嚪 Paris | 16,121 | 1947 |
| 17 | [Hutchinson](https://www.tamtam.ai/c/hutchinson) (hutchinson.com)
Designs, produces customized materials, connected solutions for global customers: land, air, sea. Leaders in vibration control, fluid management, sealing technologies. | Motor Vehicle Manufacturing | 馃嚝馃嚪 Paris | 13,625 | 1853 |
| 18 | [COLAS](https://www.tamtam.ai/c/colas) (allinks.click)
Construction and maintenance of transportation infrastructure and urban development, from industrial production to service offerings, including construction work globally. | Construction | 馃嚝馃嚪 Paris | 13,492 | |
| 19 | [Free](https://www.tamtam.ai/c/free) (etre-free.fr)
Leading European telecommunications group offering fixed and mobile high-speed internet, serving millions of subscribers across France, Italy, and Poland. | Telecommunications | 馃嚝馃嚪 Paris | 13,192 | 1999 |
| 20 | [NAVAL GROUP](https://www.tamtam.ai/c/naval-group) (naval-group.com)
Designs, produces, integrates, supports and upgrades submarines, surface ships, drones, their systems, weapons, and equipment for countries maintaining maritime sovereignty. | Defense and Space Manufacturing | 馃嚝馃嚪 Paris | 12,753 | |
| 21 | [Lacoste](https://www.tamtam.ai/c/lacoste) (lacoste.com)
Global fashion and sport brand, offering apparel, footwear, leather goods, underwear, fragrances, eyewear, and watches; two items sold every second worldwide. | Retail Apparel and Fashion | 馃嚝馃嚪 Paris | 11,006 | 1933 |
| 22 | [Ramsay Sant茅](https://www.tamtam.ai/c/ramsay-sante-paris) (ramsaysante.fr)
European leader in private hospitalization and primary care, offering medical, surgical, rehabilitation, and mental health services across multiple countries, innovating for better health outcomes. | Hospitals and Health Care | 馃嚝馃嚪 Paris | 8,739 | 1987 |
| 23 | [Imerys](https://www.tamtam.ai/c/imerys) (imerys.com)
Provides mineral-based solutions across diverse industries, including construction, consumer goods, automotive, and energy transition, focusing on innovation and sustainability for customers. | Mining | 馃嚝馃嚪 Paris | 7,974 | |
| 24 | [Malakoff Humanis](https://www.tamtam.ai/c/malakoff-humanis) (malakoffhumanis.com)
Shares its strategic announcements, key study findings, and various services offered by the group to its followers on its official page. | Insurance | 馃嚝馃嚪 Paris | 7,073 | 2020 |
| 25 | [Ipsen](https://www.tamtam.ai/c/ipsen) (ipsen.com)
Global biopharmaceutical company developing transformative medicines within oncology, rare disease and neuroscience through external innovation, extensive development experience and international research hubs. | Pharmaceutical Manufacturing | 馃嚝馃嚪 Paris | 6,654 | |
| 26 | [Groupe Clarins](https://www.tamtam.ai/c/groupe-clarins) (groupeclarins.com)
Family-owned company, promotes responsible beauty, offers high-quality products and services, and values talent while anticipating long-term impact on the planet. | Personal Care Product Manufacturing | 馃嚝馃嚪 Paris | 6,416 | 1954 |
| 27 | [INRAE](https://www.tamtam.ai/c/inrae) (inrae.fr)
Research and innovation in agriculture, food quality, plant and animal sciences, ecology, and sustainable resource and ecosystem management. | Research Services | 馃嚝馃嚪 Paris | 6,088 | 2020 |
| 28 | [Sorbonne Universit茅](https://www.tamtam.ai/c/sorbonne-universite) (sorbonne-universite.fr)
Multidisciplinary university with extensive research activities, large student and staff body, addressing major 21st-century challenges globally. | Higher Education | 馃嚝馃嚪 Paris | 5,534 | 2018 |
| 29 | [Fives](https://www.tamtam.ai/c/fives) (fivesgroup.com)
Designs and supplies industrial machines, process equipment, and production lines for large industrial clients, with a focus on future plant development. | Industrial Machinery Manufacturing | 馃嚝馃嚪 Paris | 4,958 | 1812 |
| 30 | [Institut Pasteur](https://www.tamtam.ai/c/institut-pasteur) (pasteur.fr)
Non-profit foundation specializing in biomedical research, public health, training, and technological innovation to combat infectious diseases worldwide. | Research Services | 馃嚝馃嚪 Paris | 4,743 | 1887 |
## 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 Paris
- [The largest companies in Paris](https://www.tamtam.ai/l/largest-companies-paris) (22,790)
- [Multinational companies in Paris](https://www.tamtam.ai/l/multinational-companies-paris) (3,531)
- [Professional services firms in Paris](https://www.tamtam.ai/l/professional-services-firms-paris) (2,241)
- [SaaS companies in Paris](https://www.tamtam.ai/l/saas-companies-paris) (2,218)
- [IT Services and IT Consulting companies in Paris](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-paris) (1,547)
- [Consulting firms in Paris](https://www.tamtam.ai/l/consulting-firms-paris) (1,532)
- [Retail chains in Paris](https://www.tamtam.ai/l/retail-chains-paris) (1,491)
- [Software Development companies in Paris](https://www.tamtam.ai/l/software-development-companies-paris) (1,413)
- [IT services companies in Paris](https://www.tamtam.ai/l/it-services-companies-paris) (1,386)
- [Financial services firms in Paris](https://www.tamtam.ai/l/financial-services-firms-paris) (1,361)
- [Business Consulting and Services companies in Paris](https://www.tamtam.ai/l/business-consulting-and-services-companies-paris) (1,360)
- [Law Practice companies in Paris](https://www.tamtam.ai/l/law-practice-companies-paris) (1,289)
- [Subscription businesses in Paris](https://www.tamtam.ai/l/subscription-businesses-paris) (1,004)
- [Financial Services companies in Paris](https://www.tamtam.ai/l/financial-services-companies-paris) (999)
- [Advertising Services companies in Paris](https://www.tamtam.ai/l/advertising-services-companies-paris) (832)
- [Marketing and communications agencies in Paris](https://www.tamtam.ai/l/marketing-agencies-paris) (812)
- [Education providers in Paris](https://www.tamtam.ai/l/education-companies-paris) (812)
- [Technology, Information and Internet companies in Paris](https://www.tamtam.ai/l/technology-information-and-internet-companies-paris) (807)
- [Companies with a mobile app in Paris](https://www.tamtam.ai/l/companies-with-mobile-app-paris) (764)
- [AI companies in Paris](https://www.tamtam.ai/l/ai-companies-paris) (743)
- [Recruitment and staffing agencies in Paris](https://www.tamtam.ai/l/recruitment-agencies-paris) (727)
- [Luxury brands in Paris](https://www.tamtam.ai/l/luxury-brands-paris) (713)
- [Real Estate companies in Paris](https://www.tamtam.ai/l/real-estate-companies-paris) (627)
- [AI-native companies in Paris](https://www.tamtam.ai/l/ai-native-companies-paris) (619)
## 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 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) (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 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) (321)
- [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 Lyon](https://www.tamtam.ai/l/r-and-d-companies-lyon) (192)
- [Companies with in-house R&D in Toulouse](https://www.tamtam.ai/l/r-and-d-companies-toulouse) (172)
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Source: https://www.tamtam.ai/l/r-and-d-companies-paris