The research services sector in Occitanie features a mix of public and private entities, encompassing a wide range of scientific and technical disciplines. These organizations vary from large, established research centers to specialized engineering firms. Notable examples include CIRAD, a research center for sustainable agricultural development, and Ecole des Mines d'Alès, a higher education school with engineering research laboratories.
Key players like IRIT (Institut de Recherche en Informatique de Toulouse) specialize in computer science research, while GROUPE PARERA focuses on cartography and network management. A significant concentration of these research entities is found in Toulouse and Montpellier, indicating these cities as major hubs for scientific and technological development within the region. Many companies also focus on nuclear engineering, such as Groupe D&S and ECIA.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 | 2,431 | ||||
| 2 |
Ecole des Mines d'Alèsimt-mines-ales.fr
Higher education school offering engineering courses in Environmental, Mechanical, Production, and Software Engineering Research laboratories provide internship opportunities to PhD students |
622 | |||
| 3 |
MSHmshsud.org
Research federation affiliated with CNRS, uniting sciences for alternative development at Maison des Sciences de l'Homme Sud |
441 | |||
| 4 | 412 | ||||
| 5 |
IRIT (Institut de Recherche en Informatique de Toulouse)irit.fr
Leaders in computer science research since 1990, with over 690 members including researchers and PhD students from top French institutions Specializing in various fields like AI and computer networks |
383 | |||
| 6 |
GROUPE PARERAgroupe-parera.com
A company specializing in cartography, CAD, GIS, and network management for clients globally, offering various services from mapping to software development |
372 | |||
| 7 |
Groupe D&Sds-groupe.fr
Assists businesses in managing risks, particularly in nuclear environments, offering services such as HSE, asbestos, training, EPVR, studies, and radioprotection. |
367 | |||
| 8 |
IRT Saint Exupéryirt-saintexupery.com
Combines public and private partners, developing research activities with global technology platforms and high-level skills for breakthrough technologies. |
366 | |||
| 9 |
ECIAgroupe-ecia.com
It specializes in nuclear engineering, focusing on risk management, utilities, and supporting the entire lifecycle of installations. |
277 | |||
| 10 |
INRAE Occitanie-Toulouseinrae.fr
Conducting multidisciplinary research in biology and engineering to develop circular bioeconomies, accelerate agroecological transitions, and improve global animal health and food toxicology. |
250 | |||
| 11 |
EPSYL - ALCEN Groupepsyl-alcen.com
Designing and optimizing systems for industrial sectors, combining multiphysics modeling, simulation, and systems integration expertise, notably in thermal, mechanical, and fluidic domains. |
224 | |||
| 12 | 221 | ||||
| 13 |
Laboratoire de Génie Chimique Toulouse / Chemical Engineering Research Center of Toulouselgc.cnrs.fr
Research center develops experimental, theoretical work in chemical engineering, transforming matter and energy processes, addressing societal issues: water, energy, biorefinery, materials, health. |
216 | |||
| 14 |
Centre Informatique National de l'Enseignement supérieurcines.fr
National public establishment provides intensive computing power for researchers, preserves digital heritage, and hosts IT equipment for public organizations, primarily higher education and research. |
184 | |||
| 15 |
IPBS-Toulouse (CNRS-UT3)ipbs.fr
A leading research center in Toulouse focusing on cancer and infectious diseases, conducting molecular and cellular biology research to discover therapeutic targets |
184 | |||
| 16 |
Inserm Toulouseinserm.fr
A public research institute in France supporting biomedical research with regional delegations in Montpellier and Toulouse, providing HR, financial, and communication services |
171 | |||
| 17 |
CERFACScerfacs.fr
Specialized center providing research and advanced training in scientific computing in Europe |
170 | |||
| 18 |
IRCM - Institut de Recherche en Cancérologie de Montpellierircm.fr
Research center develops basic and translational oncology, focusing on solid tumor plasticity and therapeutic antibodies for cancer treatment, collaborating with clinical departments. |
161 | |||
| 19 |
ICGM Montpelliericgm.fr
Public research laboratory supported by CNRS, University of Montpellier, and ENSCM, advancing materials chemistry in health, environment, and energy fields. |
113 | |||
| 20 | 102 | ||||
| 21 |
CIRIMATcirimat.cnrs.fr
CIRIMAT is a research center in Toulouse specializing in materials science and engineering, with expertise from 6 teams across 4 locations |
102 | |||
| 22 | 95 | ||||
| 23 |
Institut Clément Ader (ICA) CNRS UMR 5312ica.cnrs.fr
The research institute specializes in studying mechanical structures in industries like aerospace and energy, focusing on behavior modeling and composite materials |
85 | |||
| 24 |
CRBM - CNRScrbm.cnrs.fr
A non-profit research center in Montpellier, focusing on biochemistry and cell biology to advance biomedical research and develop therapeutic strategies |
81 | |||
| 25 |
European Institute of Membranes of Montpellier/Franceiem.umontpellier.fr
A leading international research institute specializing in membrane materials and processes for applications in effluent treatment, gas separation, biotechnology, and health |
80 | |||
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| 26 |
IRIM Institut de Recherche en Infectiologie de Montpellieririm.cnrs.fr
A research center focused on fundamental research in bacteriology, virology, and immunity, aiming to train passionate researchers and develop new anti-infectious treatments |
72 | |||
| 27 |
RESTOREstromalab.fr
The RESTORE research center examines tissue homeostasis, aging, and rejuvenation strategies through transdisciplinary and multicultural collaboration, facilitating innovative research and translational activities |
65 | |||
| 28 |
CEMES-CNRScemes.fr
The company is a fundamental research laboratory specializing in nanosciences, solid-state physics, molecular chemistry, and materials science, known for synthesizing nanomaterials and studying their properties |
65 | |||
| 29 |
STAR ENGINEERINGstar-engineering.fr
A French subsidiary specializing in providing support to the Aerospace, Space, Transport, and Defense industries, offering technical assistance and services to major industrial groups |
64 | |||
| 30 |
Dimo Diagnosticdimo-diagnostic.net
DIMO Diagnostic specializes in certified real estate diagnostics for individuals and professionals, focusing on customer satisfaction through human-centered service delivery |
60 | |||
| 31 | 58 | ||||
| 32 |
Toulouse Tech Transfertoulouse-tech-transfer.com
Facilitates maturation and market introduction of public research technologies, managing intellectual property and collaborating with businesses. |
45 | |||
| 33 |
ergonovaergonova.fr
A leading group in ergonomics and human factors, focusing on overall performance and workplace health for a wide range of industries nationally and internationally |
45 | |||
| 34 |
Aléa Contrôlesaleacontroles.com
Provides health and safety consulting, training, and laboratory analysis for asbestos, lead, and pollutants in construction and public works sectors. |
39 | |||
| 35 |
INRAE Laboratoire de Biotechnologie de l'Environnementnarbonne.montpellier.hub.inrae.fr
Specialized environmental biotechnology research lab that operates as an independent research unit within INRA, working on innovative solutions for environmental challenges |
38 | |||
| 36 |
Laboratoire d'Aérologie (LAERO)laero.omp.eu
The company specializes in atmospheric research focusing on meteorological processes, tropospheric physico-chemistry, coastal oceanography, and climate change impacts through modeling and observations |
35 | |||
| 37 |
Studelec SEOseogroup.fr
Industrial engineering and integration of complex systems for clients in aerospace, defense, and transportation sectors Specializing in electronic, electrical, mechanical design, and testing |
27 | |||
| 38 |
Umr Espace-Devespace-dev.fr
The company conducts research on spatial dynamics of eco-socio systems, focusing on indicators, methodologies in remote sensing, and environmental observatories for development |
25 | |||
| 39 |
UTOPIcertop.cnrs.fr
Analyzes interdependent social, environmental, productive, educational, and political transitions, identifying transformation levers and structural obstacles from local to international perspectives. |
23 | |||
| 40 |
TerrOïkoterroiko.fr
TerrOïko develops digital solutions for biodiversity, providing software, project management, and scientific research services for public and private organizations in ecological planning and conservation |
21 | |||
| 41 |
OpenIndusopenindus.com
OpenIndus offers support in designing intelligent products with its compact, flexible PLC and range of modules, along with electronic, software, and engineering integration services |
17 | |||
| 42 |
CRT PRIMESprimes-innovation.com
Supports research and technological development for innovation and competitiveness in power electronics and energy management, integrating power electronics technologies for advanced conversion systems. |
12 | |||
| 43 |
Eco2 Wattconseileco2wattconseil.com
Innovative engineering firm founded in 2008, offering energy, legal, financial services, specializing in thermal studies, energy audits, building air tightness, and project management |
10 | |||
| 44 | 
SPASCIA
Scientific engineering, specializing in space and environment, processing and analyzing remote-sensing Earth atmosphere observations for environmental applications like air quality. |
10 | |||
| 45 |
BionomeeXbionomeex.com
A software company specializing in biology, genetics, and genomics, offering tailored algorithms and computational solutions to meet clients' needs |
9 | |||
| 46 |
Medexprimbcplatforms.com
European leader in secure imaging and clinical data extraction for medical research, bridging hospitals with pharmaceutical, AI, and medical device companies for personalized medicine |
8 | |||
| 47 |
#DigitAg - Digital Agriculture Convergence Labhdigitag.fr
French Digital Agriculture Convergence Lab brings together 360 researchers to develop farmer-friendly ICT for competitive agriculture in a digital world. |
8 | |||
| 48 |
France-BioImagingfrance-bioimaging.org
A national infrastructure for biological imaging, providing access to innovative instruments and technologies, training programs, and advanced microscopy systems for researchers worldwide |
8 | |||
| 49 | 5 | ||||
| 50 |
H2TEAM Hydrogen engineeringh2team.fr
A company providing technical assistance for hydrogen technology risk management, including certification services, safety infrastructure design, and professional training modules on hydrogen |
5 | |||
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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 Occitanie
- The largest companies in Occitanie 5,769
- Companies with in-house R&D in Occitanie 680
- Retail chains in Occitanie 579
- Multinational companies in Occitanie 532
- Manufacturers in Occitanie 433
- Professional services firms in Occitanie 399
- Public sector organisations in Occitanie 317
- SaaS companies in Occitanie 317
- Software Development companies in Occitanie 315
- Hardware manufacturers in Occitanie 291
- IT services companies in Occitanie 280
- Aerospace and defence companies in Occitanie 278
- Family-owned companies in Occitanie 272
- Distributors and wholesalers in Occitanie 262
- IT Services and IT Consulting companies in Occitanie 259
- Consulting firms in Occitanie 236
- Critical infrastructure operators in Occitanie 216
- Real Estate companies in Occitanie 202
- Education providers in Occitanie 201
- Healthcare providers in Occitanie 194
- Retail companies in Occitanie 186
- Business Consulting and Services companies in Occitanie 181
- Accounting companies in Occitanie 174
- Accounting firms in Occitanie 173
The same list elsewhere in France
- Research Services companies in France 745
- Research Services companies in Île-de-France 268
- Research Services companies in Auvergne-Rhône-Alpes 95
- Research Services companies in Provence-Alpes-Côte d'Azur 78
- Research Services companies in Grand Est 60
- Research Services companies in the Rhône department 49
- Research Services companies in Nouvelle-Aquitaine 48
- Research Services companies in the Bouches-du-Rhône department 47
- Research Services companies in the Essonne department 35
- Research Services companies in the Haute-Garonne department 30
- Research Services companies in Brittany 29
- Research Services companies in the Isère department 29
- Research Services companies in the Gironde department 28
- Research Services companies in Hauts-de-France 27
- Research Services companies in Paris 148
- Research Services companies in Marseille 33