# 30 leading public sector organisations in the Isère department Tamtam tracks 80 public sector organisations headquartered in the Isère department. This list ranks the 30 largest by number of employees on LinkedIn, led by CHU Grenoble Alpes, CEA-Leti and Grenoble-Alpes Métropole. Their median headcount is 296. Half of them were founded in 1974 or later. The most common headquarters are Grenoble (19), Saint-Martin-d'Hères (2) and Vienne (2). The Isère department's largest public sector organizations are primarily involved in healthcare, education, and government administration. These are large-scale employers, with several exceeding 1,000 employees. Key entities include CHU Grenoble Alpes, a major regional hospital, and CEA-Leti, which develops micro- and nanotechnologies. Government administration is represented by Grenoble-Alpes Métropole, overseeing urban development, and Ville de Grenoble, managing municipal services. A notable characteristic of these organizations is their strong concentration in the city of Grenoble, which hosts the headquarters of many of the largest employers. This includes Académie de Grenoble, an educational administration, and Grenoble INP - UGA Recrutement, a higher education institution. Another prominent area is public safety, with SDIS38 providing fire and rescue services across the department. 🇫🇷 Isère · 30 companies · Updated Nov 11, 2026 | # | Company | Industry | Headquarters | Employees | Founded | |---|---|---|---|---|---| | 1 | [CHU Grenoble Alpes](https://www.tamtam.ai/c/chu-grenoble-alpes) (chu-grenoble.fr)
Major regional hospital providing comprehensive medical, surgical, emergency care, and health research across multiple specialized disciplines and advanced technology. | Hospitals and Health Care | 🇫🇷 Grenoble | 3,812 | | | 2 | [CEA-Leti](https://www.tamtam.ai/c/cea-leti) (leti-cea.com)
Development of micro- and nanotechnologies for smart, energy-efficient, and secure industrial applications including healthcare, energy, and digital sectors. | Semiconductor Manufacturing | 🇫🇷 Grenoble | 1,223 | 1967 | | 3 | [Grenoble-Alpes Métropole](https://www.tamtam.ai/c/grenoble-alpes-metropole) (grenoblealpesmetropole.fr)
Leading administration in Grenoble responsible for transportation, waste management, economic development, and environmental preservation within the city | Government Administration | 🇫🇷 Grenoble | 1,121 | 1996 | | 4 | [Ville de Grenoble](https://www.tamtam.ai/c/ville-de-grenoble) (grenoble.fr)
A territorial authority managing the municipal territory of Grenoble, overseeing a population of nearly 160,000 residents | Government Administration | 🇫🇷 Grenoble | 1,048 | | | 5 | [SDIS38 - Service Départemental d'Incendie et de Secours de l'Isère](https://www.tamtam.ai/c/sdis38-service-departemental-d-incendie-et-de-secours-de-l-isere) (sdis38.fr)
Organization of fire and rescue services across 21 centers, operational command, prevention actions, and administrative management under local authorities. | Public Safety | 🇫🇷 Fontaine | 774 | 1955 | | 6 | [Centre Hospitalier Alpes-Isère](https://www.tamtam.ai/c/centre-hospitalier-alpes-isere) (ch-alpes-isere.fr)
Provides specialized psychiatric care for adults, adolescents, and children across multiple sites, including hospitals and outpatient centers. | Hospitals and Health Care | 🇫🇷 Saint-Égrève | 670 | | | 7 | [Académie de Grenoble](https://www.tamtam.ai/c/academie-de-grenoble) (www1.ac-grenoble.fr)
Educational administration covering diverse geographic areas including urban centers and rural mountainous regions with a focus on quality living environments. | Primary and Secondary Education | 🇫🇷 Grenoble | 662 | 1848 | | 8 | [CEA-Liten](https://www.tamtam.ai/c/cea-liten) (liten.cea.fr)
Leading European research institute focusing on solar energy, batteries, hydrogen, and circular economy while developing decarbonization tools and eco-innovative industrial partnership solutions. | Research Services | 🇫🇷 Grenoble | 445 | 2004 | | 9 | [Greta Formation - Académie de Grenoble](https://www.tamtam.ai/c/greta-formation-academie-de-grenoble) (gretaformation.fr)
A network of public establishments specializing in professional training, offering a wide range of courses in 10 different fields and providing consultancy services to businesses | Professional Training and Coaching | 🇫🇷 Grenoble | 435 | 1974 | | 10 | [Grenoble INP - UGA Recrutement](https://www.tamtam.ai/c/grenoble-inp-uga-recrutement) (grenoble-inp.nous-recrutons.fr)
Public higher education institution offering engineering and management programs, conducting innovative research, and promoting social and environmental responsibility. | Higher Education | 🇫🇷 Grenoble | 364 | 1900 | | 11 | [Sciences Po Grenoble - UGA](https://www.tamtam.ai/c/sciences-po-grenoble-uga) (sciencespo-grenoble.fr)
Offers ambitious five-year intellectual programs forming future decision-makers, specializing in social sciences and political studies, with a strong international focus. | Higher Education | 🇫🇷 Saint-Martin-d'Hères | 355 | 1948 | | 12 | [Centre Hospitalier Lucien Hussel](https://www.tamtam.ai/c/centre-hospitalier-lucien-hussel) (ch-vienne.fr)
The hospital offers a diverse range of medical services including emergency care, specialized treatments, maternity care, geriatrics, and an Institute for Nursing Education | Hospitals and Health Care | 🇫🇷 Vienne | 353 | 1967 | | 13 | [Centre Communal d'Action Sociale de Grenoble (CCAS)](https://www.tamtam.ai/c/centre-communal-d-action-sociale-de-grenoble-ccas) (grenoble.fr)
The social services department in Grenoble analyzes community needs and implements policies focusing on seniors, childcare, and poverty/precarity reduction | Government Administration | 🇫🇷 Grenoble | 341 | | | 14 | [IUT2 Grenoble](https://www.tamtam.ai/c/iut2-grenoble) (iut2.univ-grenoble-alpes.fr)
The IUT2 provides tailored training programs for businesses and local communities, offering a supportive environment for students to develop skills for successful career integration | Higher Education | 🇫🇷 Grenoble | 322 | 1966 | | 15 | [Le Grésivaudan - Communauté de communes](https://www.tamtam.ai/c/le-gresivaudan-communaute-de-communes) (le-gresivaudan.fr)
A community of 43 municipalities with over 100,000 residents, working together to provide services and support in Le Grésivaudan | Government Administration | 🇫🇷 Crolles | 296 | 2009 | | 16 | [Grenoble INP - UGA](https://www.tamtam.ai/c/grenoble-inp-uga) (grenoble-inp.fr)
Public higher education institution combining engineering schools, management programs, and research laboratories within the University Grenoble Alpes. | Higher Education | 🇫🇷 Grenoble | 287 | | | 17 | [CAPI](https://www.tamtam.ai/c/capi) (capi-agglo.fr)
Regional agglomeration in Isère with 22 communes, focusing on sustainable development, urban planning, public services, and economic growth. | Government Administration | 🇫🇷 L'Isle-d'Abeau | 275 | 2007 | | 18 | [Alpes Isère Habitat](https://www.tamtam.ai/c/alpes-isere-habitat) (alpeshabitat.fr)
A public establishment in the Auvergne Rhône-Alpes region managing over 30,000 properties with 630 employees providing social support to 55,000 tenants | Real Estate | 🇫🇷 Grenoble | 274 | 1950 | | 19 | [GHND - Groupement Hospitalier Nord-Dauphiné](https://www.tamtam.ai/c/ghnd-groupement-hospitalier-nord-dauphine) (ghnd.fr)
The healthcare facility provides medical services to a territory with 230,000 residents, offering a range of care including medicine, surgery, pediatrics, and elderly care | Hospitals and Health Care | 🇫🇷 Bourgoin-Jallieu | 261 | 2016 | | 20 | [Pays Voironnais](https://www.tamtam.ai/c/pays-voironnais) (paysvoironnais.com)
Autonomous living area with 31 communes, providing urban functions, services, and economic development through traditional and high-tech industries. | Government Administration | 🇫🇷 Voiron | 258 | 1974 | | 21 | [Grenoble IAE](https://www.tamtam.ai/c/grenoble-iae) (iae.grenoble-inp.fr)
A university of management specializing in training specialized managers with double skills, offering B2 to B5 programs in various management fields | Higher Education | 🇫🇷 Saint-Martin-d'Hères | 241 | | | 22 | [Institut Néel CNRS](https://www.tamtam.ai/c/institut-neel-cnrs) (neel.cnrs.fr)
A fundamental research lab specializing in condensed matter physics, with interdisciplinary collaborations in chemistry, engineering, biology, and astrophysics | Research Services | 🇫🇷 Grenoble | 237 | 2007 | | 23 | [CEA Tech](https://www.tamtam.ai/c/cea-tech) (cea-tech.fr)
technology research unit developing ICT, energy, healthcare technologies, bridging research and business, providing access to key enabling technologies | Think Tanks | 🇫🇷 Grenoble | 192 | | | 24 | [Grenoble INP - Phelma](https://www.tamtam.ai/c/grenoble-inp-phelma) (phelma.grenoble-inp.fr)
An engineering school offering diverse programs in fields like micro & nanotechnologies, energy, materials, information technology, biotechnology, and environmental engineering Located in Grenoble, France | Higher Education | 🇫🇷 Grenoble | 188 | | | 25 | [Grenoble INP - Ense3](https://www.tamtam.ai/c/grenoble-inp-ense3) (ense3.grenoble-inp.fr)
Educates engineers in electrical, mechanical, hydraulic, civil, and environmental fields, focusing on the energy chain and water cycle. | Higher Education | 🇫🇷 Grenoble | 182 | 2008 | | 26 | [Institut de Biologie Structurale (IBS)](https://www.tamtam.ai/c/institut-de-biologie-structurale-ibs) (ibs.fr)
Research center in Grenoble, France focusing on integrative structural biology, molecular mechanisms, and complex interactions between cells and pathogens | Research Services | 🇫🇷 Grenoble | 181 | 1992 | | 27 | [Vienne Condrieu Agglomération](https://www.tamtam.ai/c/vienne-condrieu-agglomeration) (vienne-condrieu-agglomeration.fr)
Public intercommunal entity formed by 30 communes, focusing on regional cooperation and shared local governance since 2018. | Government Administration | 🇫🇷 Vienne | 175 | 2018 | | 28 | [Compagnie de Chauffage](https://www.tamtam.ai/c/compagnie-de-chauffage) (compagniedechauffage.fr)
Management and operation of an extensive urban heat network supplying over 100,000 homes with 82% renewable and recovered energy. | Environmental Services | 🇫🇷 Grenoble | 138 | 1960 | | 29 | [Ville de Villefontaine](https://www.tamtam.ai/c/ville-de-villefontaine) (villefontaine.fr)
Economic development with commercial revitalization, coworking spaces, artisan park hosting 50+ businesses, social economy actors, and strategic location near Lyon airport. | Government Administration | 🇫🇷 Villefontaine | 137 | | | 30 | [Assurance Maladie de l'Isère](https://www.tamtam.ai/c/assurance-maladie-de-l-isere) (ameli.fr)
A social security organization in Isère, implementing national health insurance policies, ensuring access to healthcare, promoting prevention, and improving healthcare efficiency | Government Administration | 🇫🇷 Grenoble | 136 | | ## 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 Isère department - [The largest companies in the Isère department](https://www.tamtam.ai/l/largest-companies-isere) (1,457) - [Companies with in-house R&D in the Isère department](https://www.tamtam.ai/l/r-and-d-companies-isere) (304) - [Manufacturers in the Isère department](https://www.tamtam.ai/l/manufacturers-isere) (178) - [Multinational companies in the Isère department](https://www.tamtam.ai/l/multinational-companies-isere) (174) - [Hardware manufacturers in the Isère department](https://www.tamtam.ai/l/hardware-companies-isere) (143) - [Retail chains in the Isère department](https://www.tamtam.ai/l/retail-chains-isere) (100) - [Software Development companies in the Isère department](https://www.tamtam.ai/l/software-development-companies-isere) (90) - [Professional services firms in the Isère department](https://www.tamtam.ai/l/professional-services-firms-isere) (87) - [Distributors and wholesalers in the Isère department](https://www.tamtam.ai/l/distributors-and-wholesalers-isere) (78) - [IT services companies in the Isère department](https://www.tamtam.ai/l/it-services-companies-isere) (75) - [SaaS companies in the Isère department](https://www.tamtam.ai/l/saas-companies-isere) (72) - [Electronics and semiconductor companies in the Isère department](https://www.tamtam.ai/l/electronics-companies-isere) (70) - [Contract manufacturers in the Isère department](https://www.tamtam.ai/l/contract-manufacturers-isere) (68) - [IT Services and IT Consulting companies in the Isère department](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-isere) (68) - [Family-owned companies in the Isère department](https://www.tamtam.ai/l/family-owned-companies-isere) (61) - [Industrial Machinery Manufacturing companies in the Isère department](https://www.tamtam.ai/l/industrial-machinery-manufacturing-companies-isere) (58) - [Consulting firms in the Isère department](https://www.tamtam.ai/l/consulting-firms-isere) (57) - [Construction companies in the Isère department](https://www.tamtam.ai/l/construction-companies-isere) (52) - [Pharmaceutical companies in the Isère department](https://www.tamtam.ai/l/pharmaceutical-companies-isere) (47) - [Education providers in the Isère department](https://www.tamtam.ai/l/education-companies-isere) (46) - [Medical device companies in the Isère department](https://www.tamtam.ai/l/medical-device-companies-isere) (43) - [Critical infrastructure operators in the Isère department](https://www.tamtam.ai/l/critical-infrastructure-operators-isere) (41) - [Energy companies in the Isère department](https://www.tamtam.ai/l/energy-companies-isere) (41) - [Chemical companies in the Isère department](https://www.tamtam.ai/l/chemical-companies-isere) (40) ## The same list elsewhere in France - [Public sector organisations in France](https://www.tamtam.ai/l/public-sector-organisations-france) (4,006) - [Public sector organisations in Île-de-France](https://www.tamtam.ai/l/public-sector-organisations-ile-de-france) (993) - [Public sector organisations in Auvergne-Rhône-Alpes](https://www.tamtam.ai/l/public-sector-organisations-auvergne-rhone-alpes) (451) - [Public sector organisations in Grand Est](https://www.tamtam.ai/l/public-sector-organisations-grand-est) (425) - [Public sector organisations in Provence-Alpes-Côte d'Azur](https://www.tamtam.ai/l/public-sector-organisations-provence-alpes-cote-dazur) (384) - [Public sector organisations in Occitanie](https://www.tamtam.ai/l/public-sector-organisations-occitanie) (317) - [Public sector organisations in Nouvelle-Aquitaine](https://www.tamtam.ai/l/public-sector-organisations-nouvelle-aquitaine) (310) - [Public sector organisations in Hauts-de-France](https://www.tamtam.ai/l/public-sector-organisations-hauts-de-france) (261) - [Public sector organisations in Pays de la Loire](https://www.tamtam.ai/l/public-sector-organisations-pays-de-la-loire) (187) - [Public sector organisations in the Bouches-du-Rhône department](https://www.tamtam.ai/l/public-sector-organisations-bouches-du-rhone) (183) - [Public sector organisations in Normandy](https://www.tamtam.ai/l/public-sector-organisations-normandy) (166) - [Public sector organisations in Brittany](https://www.tamtam.ai/l/public-sector-organisations-brittany) (165) - [Public sector organisations in the Nord department](https://www.tamtam.ai/l/public-sector-organisations-nord) (135) - [Public sector organisations in Bourgogne-Franche-Comté](https://www.tamtam.ai/l/public-sector-organisations-bourgogne-franche-comte) (130) - [Public sector organisations in Centre-Val de Loire](https://www.tamtam.ai/l/public-sector-organisations-centre-val-de-loire) (121) - [Public sector organisations in the Rhône department](https://www.tamtam.ai/l/public-sector-organisations-rhone) (120) - [Public sector organisations in the Haute-Garonne department](https://www.tamtam.ai/l/public-sector-organisations-haute-garonne) (111) - [Public sector organisations in the Gironde department](https://www.tamtam.ai/l/public-sector-organisations-gironde) (109) - [Public sector organisations in the Hauts-de-Seine department](https://www.tamtam.ai/l/public-sector-organisations-hauts-de-seine) (96) - [Public sector organisations in the Seine-Saint-Denis department](https://www.tamtam.ai/l/public-sector-organisations-seine-saint-denis) (91) - [Public sector organisations in the Loire-Atlantique department](https://www.tamtam.ai/l/public-sector-organisations-loire-atlantique) (82) - [Public sector organisations in Paris](https://www.tamtam.ai/l/public-sector-organisations-paris) (460) - [Public sector organisations in Marseille](https://www.tamtam.ai/l/public-sector-organisations-marseille) (103) - [Public sector organisations in Toulouse](https://www.tamtam.ai/l/public-sector-organisations-toulouse) (83) --- Source: https://www.tamtam.ai/l/public-sector-organisations-isere