# List of Government Administration companies in the Hauts-de-Seine department

Tamtam tracks 43 Government Administration companies headquartered in the Hauts-de-Seine department. This list ranks the 30 largest by number of employees on LinkedIn, led by Insee, ASNR - Autorité de sûreté nucléaire et de radioprotection and EPIDE Défense 2e Chance. Their median headcount is 349. Half of them were founded in 1946 or later. The most common headquarters are Antony (2), Courbevoie (2) and Levallois-Perret (2).

This list comprises government administration entities in Hauts-de-Seine, predominantly mid-sized to large organizations. Key players include Insee, which collects and produces statistics on the French economy and society, and ASNR - Autorité de sûreté nucléaire et de radioprotection, an independent authority controlling civilian nuclear activities. EPIDE Défense 2e Chance supports young people in reintegration, while CCI France federates French Chambers of Commerce.

A notable pattern is the presence of numerous city administrations such as Ville de Boulogne-Billancourt, Ville de Colombes, and Ville de Rueil-Malmaison, indicating a strong local government presence. These entities are spread across various municipalities within the department, reflecting decentralized administrative functions.

🇫🇷 Hauts-de-Seine · 30 companies · Updated Nov 13, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Insee](https://www.tamtam.ai/c/insee) (insee.fr)<br>Collects information, produces statistics on French economy, population, society. Conducts census, surveys, manages national registries, and provides data freely to the public. | Government Administration | 🇫🇷 Montrouge | 2,900 | 1946 |
| 2 | [ASNR - Autorité de sûreté nucléaire et de radioprotection](https://www.tamtam.ai/c/asnr-autorite-de-surete-nucleaire-et-de-radioprotection) (asnr.fr)<br>Independent authority controlling civilian nuclear activities and radiation protection in France, including research, expertise, training, and public information. | Government Administration | 🇫🇷 Montrouge | 1,168 | 2025 |
| 3 | [EPIDE Défense 2e Chance](https://www.tamtam.ai/c/epide-defense-2e-chance) (epide.fr)<br>Support young people aged 18 to 25 without diplomas or qualifications, helping them reintegrate into employment and society. | Government Administration | 🇫🇷 Malakoff | 1,089 | 2005 |
| 4 | [Ville de Boulogne-Billancourt](https://www.tamtam.ai/c/ville-de-boulogne-billancourt) (linktr.ee)<br>City administration managing diverse urban functions, heritage preservation, economic development, residential variety, commercial balance, and cultural influence for residents. | Government Administration | 🇫🇷 Boulogne-Billancourt | 805 | 1926 |
| 5 | [CCI France](https://www.tamtam.ai/c/cci-france) (cci.fr)<br>Federation of French Chambers of Commerce supporting 2 million companies with economic intelligence, development, education, and environmental sustainability coordination. | Government Administration | 🇫🇷 Levallois-Perret | 713 | 1964 |
| 6 | [INPI France](https://www.tamtam.ai/c/inpi-france) (inpi.fr)<br>The company is a key player in innovation, granting industrial property titles, supporting economic development, facilitating business formalities, and fighting counterfeiting | Government Administration | 🇫🇷 Courbevoie | 710 | 1951 |
| 7 | [Ville de Colombes](https://www.tamtam.ai/c/ville-de-colombes) (colombes.fr)<br>Provides information about actions carried out by local administration, focusing on administrative activities without political or official content. | Government Administration | 🇫🇷 Colombes | 702 | 1160 |
| 8 | [Ville de Rueil-Malmaison](https://www.tamtam.ai/c/ville-de-rueil-malmaison) (villederueil.fr)<br>City administration focused on quality living, balanced urban development, economic growth, commercial diversity, and active participation in regional metropolitan governance. | Government Administration | 🇫🇷 Rueil-Malmaison | 622 |  |
| 9 | [Ville de Courbevoie](https://www.tamtam.ai/c/ville-de-courbevoie) (ville-courbevoie.fr)<br>Dynamic city in the Paris Ouest La Défense area, Courbevoie offers services and support to its 80,000 residents through a wide range of programs and facilities | Government Administration | 🇫🇷 Courbevoie | 576 | 1980 |
| 10 | [MAIRIE DE GENNEVILLIERS](https://www.tamtam.ai/c/mairie-de-gennevilliers) (ville-gennevilliers.fr)<br>Local government managing urban development, economic growth, cultural projects, public services, and recruiting staff across various municipal sectors. | Government Administration | 🇫🇷 Gennevilliers | 558 | 1853 |
| 11 | [Ville de Neuilly-sur-Seine](https://www.tamtam.ai/c/ville-de-neuilly-sur-seine) (neuillysurseine.fr)<br>Recruiting professionals across numerous municipal sectors, from social action to public spaces, early childhood to culture, infrastructure to support functions, for a dynamic city. | Government Administration | 🇫🇷 Neuilly-sur-Seine | 552 | 1789 |
| 12 | [Mairie de Bagneux](https://www.tamtam.ai/c/mairie-de-bagneux) (bagneux92.fr)<br>Provides job and internship opportunities, recruitment information, and application guidance for municipal positions in the city of Bagneux. | Government Administration | 🇫🇷 Bagneux | 388 |  |
| 13 | [Ville de Suresnes](https://www.tamtam.ai/c/ville-de-suresnes) (suresnes.fr)<br>Dynamic green Parisian suburb, fostering economic growth across diverse sectors like health and technology, offering cultural events and local services to residents. | Government Administration | 🇫🇷 Suresnes | 367 |  |
| 14 | [Service de l’énergie opérationnelle](https://www.tamtam.ai/c/service-de-l-energie-operationnelle) (defense.gouv.fr)<br>The company provides energy support for fuels, lubricants, and related products to various military and government organizations in France | Government Administration | 🇫🇷 Malakoff | 362 | 1940 |
| 15 | [Grand Paris Seine Ouest (GPSO)](https://www.tamtam.ai/c/grand-paris-seine-ouest-gpso) (seineouest.fr)<br>An establishment managing economic development, urban planning, social housing, environment protection, and cultural & sports facilities in 8 cities | Government Administration | 🇫🇷 Meudon | 349 | 2010 |
| 16 | [Ville de Nanterre](https://www.tamtam.ai/c/ville-de-nanterre) (nanterre.fr)<br>A major employment and economic development hub in the Ile-de-France region, experiencing strong growth in private sector jobs with diverse activity sectors. | Government Administration | 🇫🇷 Nanterre | 342 |  |
| 17 | [Ville de Puteaux](https://www.tamtam.ai/c/ville-de-puteaux) (puteaux.fr)<br>Provides public services to residents, offering a pleasant living environment, modern infrastructure, and proximity services through various municipal departments. | Government Administration | 🇫🇷 Puteaux | 337 |  |
| 18 | [Ville d'Issy-les-Moulineaux](https://www.tamtam.ai/c/ville-d-issy-les-moulineaux) (issy.com)<br>Leading digital smart city with innovative companies, enhancing public services and quality of life through advanced technology integration. | Government Administration | 🇫🇷 Issy-les-Moulineaux | 330 |  |
| 19 | [Mairie de Saint-Cloud](https://www.tamtam.ai/c/mairie-de-saint-cloud) (saintcloud.fr)<br>Support and develop local economic activity, assist residents with employment and business creation, facilitate connections among businesses and community stakeholders. | Government Administration | 🇫🇷 Saint-Cloud | 313 |  |
| 20 | [Ville de Levallois](https://www.tamtam.ai/c/ville-de-levallois) (ville-levallois.fr)<br>City with equal number of jobs and residents, evolving from industrial roots to a leading service and technology economy. | Government Administration | 🇫🇷 Levallois-Perret | 299 | 1867 |
| 21 | [Vallée Sud - Grand Paris](https://www.tamtam.ai/c/vallee-sud-grand-paris) (valleesud.fr)<br>An Etablissement Public Territorial formed in 2016 within the Grand Paris Metropolitan Area, uniting 11 cities in Hauts-de-Seine for local governance | Government Administration | 🇫🇷 Fontenay-Aux-Roses | 288 | 2016 |
| 22 | [Mairie de Villeneuve-la-Garenne (92)](https://www.tamtam.ai/c/mairie-de-villeneuve-la-garenne-92) (villeneuve92.com)<br>City with 26,000 residents focused on urban transformation, heritage renovation, and public service modernization to improve living conditions. | Government Administration | 🇫🇷 Villeneuve-la-Garenne | 262 | 1929 |
| 23 | [Ville de Clamart](https://www.tamtam.ai/c/ville-de-clamart) (clamart.fr)<br>Local government managing a suburban city near Paris, part of Vallée Sud Grand Paris, with international twin town partnerships. | Government Administration | 🇫🇷 Clamart | 246 |  |
| 24 | [CPAM des Hauts-de-Seine](https://www.tamtam.ai/c/cpam-des-hauts-de-seine) (ameli.fr)<br>Working at this organization involves protecting the health of over 60 million insured individuals, providing various services to ensure access to healthcare and support in managing health expenses | Government Administration | 🇫🇷 Nanterre | 245 | 1981 |
| 25 | [Irstea](https://www.tamtam.ai/c/irstea) (irstea.fr)<br>A public research institute focused on environmental and agricultural sciences, specializing in water, ecotechnologies, and sustainable land development to address current and future challenges | Government Administration | 🇫🇷 Antony | 243 |  |
| 26 | [Mairie de La Garenne-Colombes](https://www.tamtam.ai/c/mairie-de-la-garenne-colombes) (lagarennecolombes.fr)<br>The company promotes a high quality of life in La Garenne-Colombes, emphasizing its green spaces, warm downtown area, and convenient access to Paris and La Défense | Government Administration | 🇫🇷 La Garenne-Colombes | 243 |  |
| 27 | [Ville de Meudon](https://www.tamtam.ai/c/ville-de-meudon) (meudon.fr)<br>A company in Meudon, France with 770 employees providing quality public services and meeting the needs of residents in technology-driven economy | Government Administration | 🇫🇷 Meudon | 234 | 1790 |
| 28 | [Ville d'Antony](https://www.tamtam.ai/c/ville-d-antony) (ville-antony.fr)<br>Subprefecture near Paris with 62,000 residents, hosting 4,900 companies, major biotech and hi-tech firms, and two economic hubs. | Government Administration | 🇫🇷 Antony | 225 |  |
| 29 | [Ville de Sceaux](https://www.tamtam.ai/c/ville-de-sceaux) (sceaux.fr)<br>Provides quality education, cultural activities, sports, commerce, and university services while fostering community dialogue and preserving a green living environment. | Government Administration | 🇫🇷 Sceaux | 220 |  |
| 30 | [Ville de Fontenay-aux-Roses](https://www.tamtam.ai/c/ville-de-fontenay-aux-roses) (fontenay-aux-roses.fr)<br>Located near Paris, the company is strategically situated in Fontenay-aux-Roses It serves over 25,500 residents, with easy access to public transportation including RER B and tramway T6 | Government Administration | 🇫🇷 Fontenay-Aux-Roses | 204 |  |

## 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 13, 2026.

## More company lists in the Hauts-de-Seine department

- [The largest companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/largest-companies-hauts-de-seine) (5,158)
- [Multinational companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/multinational-companies-hauts-de-seine) (1,231)
- [IT services companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/it-services-companies-hauts-de-seine) (737)
- [IT Services and IT Consulting companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-hauts-de-seine) (706)
- [Professional services firms in the Hauts-de-Seine department](https://www.tamtam.ai/l/professional-services-firms-hauts-de-seine) (629)
- [Consulting firms in the Hauts-de-Seine department](https://www.tamtam.ai/l/consulting-firms-hauts-de-seine) (563)
- [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)
- [SaaS companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/saas-companies-hauts-de-seine) (389)
- [Business Consulting and Services companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/business-consulting-and-services-companies-hauts-de-seine) (304)
- [Software Development companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/software-development-companies-hauts-de-seine) (301)
- [Retail chains in the Hauts-de-Seine department](https://www.tamtam.ai/l/retail-chains-hauts-de-seine) (292)
- [Manufacturers in the Hauts-de-Seine department](https://www.tamtam.ai/l/manufacturers-hauts-de-seine) (285)
- [Advertising Services companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/advertising-services-companies-hauts-de-seine) (281)
- [Marketing and communications agencies in the Hauts-de-Seine department](https://www.tamtam.ai/l/marketing-agencies-hauts-de-seine) (235)
- [Subscription businesses in the Hauts-de-Seine department](https://www.tamtam.ai/l/subscription-businesses-hauts-de-seine) (228)
- [Hardware manufacturers in the Hauts-de-Seine department](https://www.tamtam.ai/l/hardware-companies-hauts-de-seine) (199)
- [Financial services firms in the Hauts-de-Seine department](https://www.tamtam.ai/l/financial-services-firms-hauts-de-seine) (198)
- [Companies with a mobile app in the Hauts-de-Seine department](https://www.tamtam.ai/l/companies-with-mobile-app-hauts-de-seine) (189)
- [Critical infrastructure operators in the Hauts-de-Seine department](https://www.tamtam.ai/l/critical-infrastructure-operators-hauts-de-seine) (169)
- [AI companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/ai-companies-hauts-de-seine) (159)
- [Education providers in the Hauts-de-Seine department](https://www.tamtam.ai/l/education-companies-hauts-de-seine) (159)
- [Cybersecurity companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/cybersecurity-companies-hauts-de-seine) (154)
- [Distributors and wholesalers in the Hauts-de-Seine department](https://www.tamtam.ai/l/distributors-and-wholesalers-hauts-de-seine) (154)
- [Recruitment and staffing agencies in the Hauts-de-Seine department](https://www.tamtam.ai/l/recruitment-agencies-hauts-de-seine) (152)

## The same list elsewhere in France

- [Government Administration companies in France](https://www.tamtam.ai/l/government-administration-companies-france) (1,862)
- [Government Administration companies in Île-de-France](https://www.tamtam.ai/l/government-administration-companies-ile-de-france) (496)
- [Government Administration companies in Auvergne-Rhône-Alpes](https://www.tamtam.ai/l/government-administration-companies-auvergne-rhone-alpes) (201)
- [Government Administration companies in Grand Est](https://www.tamtam.ai/l/government-administration-companies-grand-est) (168)
- [Government Administration companies in Provence-Alpes-Côte d'Azur](https://www.tamtam.ai/l/government-administration-companies-provence-alpes-cote-dazur) (150)
- [Government Administration companies in Nouvelle-Aquitaine](https://www.tamtam.ai/l/government-administration-companies-nouvelle-aquitaine) (145)
- [Government Administration companies in Occitanie](https://www.tamtam.ai/l/government-administration-companies-occitanie) (138)
- [Government Administration companies in Hauts-de-France](https://www.tamtam.ai/l/government-administration-companies-hauts-de-france) (126)
- [Government Administration companies in Pays de la Loire](https://www.tamtam.ai/l/government-administration-companies-pays-de-la-loire) (96)
- [Government Administration companies in Normandy](https://www.tamtam.ai/l/government-administration-companies-normandy) (93)
- [Government Administration companies in Brittany](https://www.tamtam.ai/l/government-administration-companies-brittany) (81)
- [Government Administration companies in Bourgogne-Franche-Comté](https://www.tamtam.ai/l/government-administration-companies-bourgogne-franche-comte) (69)
- [Government Administration companies in Centre-Val de Loire](https://www.tamtam.ai/l/government-administration-companies-centre-val-de-loire) (64)
- [Government Administration companies in the Nord department](https://www.tamtam.ai/l/government-administration-companies-nord) (58)
- [Government Administration companies in the Bouches-du-Rhône department](https://www.tamtam.ai/l/government-administration-companies-bouches-du-rhone) (57)
- [Government Administration companies in the Seine-Saint-Denis department](https://www.tamtam.ai/l/government-administration-companies-seine-saint-denis) (53)
- [Government Administration companies in the Rhône department](https://www.tamtam.ai/l/government-administration-companies-rhone) (51)
- [Government Administration companies in the Yvelines department](https://www.tamtam.ai/l/government-administration-companies-yvelines) (51)
- [Government Administration companies in the Gironde department](https://www.tamtam.ai/l/government-administration-companies-gironde) (46)
- [Government Administration companies in the Val-de-Marne department](https://www.tamtam.ai/l/government-administration-companies-val-de-marne) (45)
- [Government Administration companies in the Haute-Garonne department](https://www.tamtam.ai/l/government-administration-companies-haute-garonne) (42)
- [Government Administration companies in the Seine-et-Marne department](https://www.tamtam.ai/l/government-administration-companies-seine-et-marne) (39)
- [Government Administration companies in the Loire-Atlantique department](https://www.tamtam.ai/l/government-administration-companies-loire-atlantique) (35)
- [Government Administration companies in Paris](https://www.tamtam.ai/l/government-administration-companies-paris) (176)

## The same list elsewhere

- [Government Administration companies in the world](https://www.tamtam.ai/l/government-administration-companies-in-the-world) (8,776)
- [Government Administration companies in Europe](https://www.tamtam.ai/l/government-administration-companies-in-europe) (4,201)

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Source: https://www.tamtam.ai/l/government-administration-companies-hauts-de-seine