The Hauts-de-Seine department hosts a significant cluster of pharmaceutical and medical technology companies. These firms range from large, established groups to mid-sized enterprises, with a strong focus on drug development, manufacturing, and related services. Companies like Servier develop pharmaceuticals across multiple therapeutic areas, while Delpharm operates as a contract development and manufacturing organization for various dosage forms. Stago specializes in in-vitro diagnostic systems for thrombosis and haemostasis, and UPSA produces self-medication products.
A notable pattern among these companies is the concentration of pharmaceutical manufacturing, research, and medical device development. Several firms, including Mayoly and Ethypharm, are involved in pharmaceutical production for specific health conditions. The presence of companies like Excelya and AIXIAL GROUP, which offer clinical research and development services, indicates a comprehensive ecosystem supporting the life sciences sector in this region.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Servierservier.com
Develops pharmaceuticals focused on cardiology, venous diseases, oncology, neurology, and rare diseases, prioritizing patient needs and investing heavily in research. |
14,291 | |||
| 2 |
Oranoorano.group
International operator in nuclear materials, provides high-value products and services across the entire fuel cycle, addressing energy and health challenges through expertise and innovation. |
12,605 | |||
| 3 |
Delpharmdelpharm.com
A leading Contract Development and Manufacturing Organization (CDMO) with 18 plants worldwide producing various dosage forms and serving demanding customers for 30 years |
3,937 | |||
| 4 | 2,054 | ||||
| 5 | 1,686 | ||||
| 6 |
ProductLife Groupproductlifegroup.com
Global service provider in Life Sciences, delivering end-to-end consulting and outsourcing services across the entire product lifecycle for various sectors. |
1,469 | |||
| 7 |
Mayolymayoly.com
Family-owned, independent, French pharmaceutical and dermatological laboratory with international operations, focused on gastroenterology and dermocosmetics, aiming for consumer healthcare leadership. |
1,218 | |||
| 8 |
Ethypharmethypharm.com
Manufactures essential hospital drugs focusing on pain, addiction, and internal medicine with global presence and multiple production sites. |
1,127 | |||
| 9 |
MSD Francemsd-france.com
A leading biopharmaceutical company specializing in oncology, vaccines, and infectious diseases, focused on using the power of science to save and improve lives |
1,051 | |||
| 10 |
Thuasnethuasne.com
Imagines, develops, manufactures medical devices. Offers concrete, adapted, innovative health solutions in orthopedics, medical compression, and sport. |
745 | |||
| 11 |
Excelyaexcelya.com
Provides comprehensive CRO, FSP, and Resourcing solutions to Biotech, Pharma, and Medical Device organizations, offering bespoke trial solutions across various therapeutic areas. |
701 | |||
| 12 |
AIXIAL GROUPaixialgroup.com
Specialized partner in clinical development, providing comprehensive trial design, execution, functional service delivery, resources, and expert consulting for efficient clinical trials. |
616 | |||
| 13 |
BIOGARANbiogaran.fr
The company specializes in providing quality generic medications for various health needs, focusing on patient well-being and rigorous development processes |
560 | |||
| 14 |
Novartis Francenovartis.fr
Develops innovative medicines to improve and extend lives. Serves patients, healthcare professionals, and society in confronting serious diseases. |
531 | |||
| 15 |
Fresenius Kabi Francefresenius-kabi.com
Specializes in vital medicines and medical devices for infusion, transfusion, and clinical nutrition, including biosimilars and blood component treatment. |
509 | |||
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. | |||||
| 16 |
MicroPort CRMmicroport.com
Develops a comprehensive heart failure management platform, combining device therapies with monitoring technologies, covering diagnosis, treatment, and long-term care globally. |
497 | |||
| 17 |
Chiesi Francechiesi.fr
A family-owned Italian biopharmaceutical group offering innovative therapeutic solutions in respiratory, rare diseases, and transplantation, focusing on patient well-being and sustainability |
392 | |||
| 18 |
Solabia Groupsolabia.com
Develops and supplies active principles and ingredients for cosmetics, pharmaceuticals, and food industries, focusing on biotechnology, enzymatic synthesis, and plant extraction. |
368 | |||
| 19 |
ELITechGroup - A Bruker Companyelitechgroup.com
The company's LinkedIn page is no longer active or updated. It has been archived due to its integration with Bruker. |
361 | |||
| 20 |
Recordati Rare Diseasesrecordatirarediseases.com
Specializes in developing and providing treatments specifically for patients affected by rare diseases, prioritizing patient care and support. |
357 | |||
| 21 |
REPSCO, an IQVIA businessrepsco.fr
Specialized pharmaceutical promotion and recruitment services in France, enhancing market share, adapting to industry changes, and leveraging digital innovation. |
306 | |||
| 22 |
Air Liquide Medical Systemsairliquide.com
Development and manufacturing of ventilators, patient interfaces, medical gas equipment, and aerosol therapy devices for healthcare applications. |
293 | |||
| 23 |
Peters Surgicaladmedsol.com
French manufacturer and distributor of surgical medical devices including sutures, titanium clips, clamps, and surgical glues, operating globally with manufacturing facilities and direct sales. |
263 | |||
| 24 |
DBV Technologiesdbv-technologies.com
Develops a skin patch (Viaskin) for treating food allergies and other immune diseases, aiming to re-educate the immune system through the skin. Pioneering epicutaneous immunotherapy. |
231 | |||
| 25 |
Galiengalien.com
Offers integrated CDMO services for pharmaceuticals, including manufacturing, specialized dosage forms, formulation development, quality controls, packaging, and warehousing in a GMP environment. |
221 | |||
| 26 |
Keyrus Life Sciencekeyruslifescience.com
Optimizes clinical trials, real-world evidence projects, and clinical R&D for pharmaceutical, biotech, and medtech industries, leveraging data and digital solutions. |
220 | |||
| 27 |
Sandoz Francesandoz.fr
A global leader in generic and biosimilar medicines, pioneering universal patient access and healthcare innovation while addressing global health challenges |
218 | |||
| 28 | 216 | ||||
| 29 |
RECORDATI Francerecordati.com
Company based in Puteaux, France, operating in the pharmaceuticals industry, located at 70, Avenue du Général de Gaulle, in the Île-de-France region. |
211 | |||
| 30 |
LEO Pharma Franceleo-pharma.fr
Helps patients achieve healthy skin by offering therapeutic solutions for managing skin problems globally, with a focus on skin disease medications and solutions. |
209 | |||
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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 Hauts-de-Seine department
- The largest companies in the Hauts-de-Seine department 5,160
- Multinational companies in the Hauts-de-Seine department 1,231
- IT services companies in the Hauts-de-Seine department 737
- IT Services and IT Consulting companies in the Hauts-de-Seine department 706
- Professional services firms in the Hauts-de-Seine department 629
- Consulting firms in the Hauts-de-Seine department 563
- Companies with in-house R&D in the Hauts-de-Seine department 510
- SaaS companies in the Hauts-de-Seine department 389
- Business Consulting and Services companies in the Hauts-de-Seine department 304
- Software Development companies in the Hauts-de-Seine department 301
- Retail chains in the Hauts-de-Seine department 292
- Manufacturers in the Hauts-de-Seine department 285
- Advertising Services companies in the Hauts-de-Seine department 281
- Marketing and communications agencies in the Hauts-de-Seine department 235
- Subscription businesses in the Hauts-de-Seine department 228
- Hardware manufacturers in the Hauts-de-Seine department 199
- Financial services firms in the Hauts-de-Seine department 198
- Companies with a mobile app in the Hauts-de-Seine department 189
- Critical infrastructure operators in the Hauts-de-Seine department 169
- AI companies in the Hauts-de-Seine department 159
- Education providers in the Hauts-de-Seine department 159
- Cybersecurity companies in the Hauts-de-Seine department 154
- Distributors and wholesalers in the Hauts-de-Seine department 154
- Recruitment and staffing agencies in the Hauts-de-Seine department 152
The same list elsewhere in France
- Pharmaceutical companies in France 1,437
- Pharmaceutical companies in Île-de-France 523
- Pharmaceutical companies in Auvergne-Rhône-Alpes 262
- Pharmaceutical companies in the Rhône department 134
- Pharmaceutical companies in Grand Est 110
- Pharmaceutical companies in Provence-Alpes-Côte d'Azur 104
- Pharmaceutical companies in Occitanie 101
- Pharmaceutical companies in Nouvelle-Aquitaine 72
- Pharmaceutical companies in the Bouches-du-Rhône department 56
- Pharmaceutical companies in Hauts-de-France 53
- Pharmaceutical companies in Pays de la Loire 48
- Pharmaceutical companies in the Isère department 47
- Pharmaceutical companies in the Essonne department 45
- Pharmaceutical companies in the Hérault department 44
- Pharmaceutical companies in the Val-de-Marne department 43
- Pharmaceutical companies in Bourgogne-Franche-Comté 37
- Pharmaceutical companies in Brittany 37
- Pharmaceutical companies in Centre-Val de Loire 37
- Pharmaceutical companies in the Bas-Rhin department 36
- Pharmaceutical companies in the Gironde department 35
- Pharmaceutical companies in the Haute-Garonne department 35
- Pharmaceutical companies in the Alpes-Maritimes department 34
- Pharmaceutical companies in Paris 229
- Pharmaceutical companies in Lyon 68