# The 30 largest Government Administration companies in the Haute-Savoie department

Tamtam tracks 33 Government Administration companies headquartered in the Haute-Savoie department. This list ranks the 30 largest by number of employees on LinkedIn, led by Haute-Savoie General Council, Ville d'Annecy and Agglomération du Grand Annecy. Their median headcount is 86. The most common headquarters are Annecy (8), Annemasse (3) and Thonon-les-Bains (2).

These government administration entities in Haute-Savoie primarily focus on public services, regional development, and community well-being. They range from departmental councils and city administrations to intercommunal structures, providing essential support for local populations and economic growth. The list includes a mix of established public bodies and more recently formed intercommunal groupings.

Key organizations include the Haute-Savoie General Council, managing social services and economic development, and Ville d'Annecy, an administrative center boosting tourism. Agglomération du Grand Annecy coordinates initiatives across 34 communes, while Annemasse Agglo focuses on managing services in a transborder urban area. A notable pattern is the concentration of headquarters in Annecy, highlighting its role as the administrative hub of the department.

🇫🇷 Haute-Savoie · 30 companies · Updated Nov 15, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Haute-Savoie General Council](https://www.tamtam.ai/c/haute-savoie-general-council) (hautesavoie.fr)<br>Management of social services, education, transportation, economic development, environmental protection, culture, and sports to support regional growth and community well-being. | Government Administration | 🇫🇷 Annecy | 711 |  |
| 2 | [Ville d'Annecy](https://www.tamtam.ai/c/ville-d-annecy) (annecy.fr)<br>Administrative center offering rich cultural, sporting events, diverse industries, and hosting major animation festival, boosting tourism and economy. | Government Administration | 🇫🇷 Annecy | 601 |  |
| 3 | [Agglomération du Grand Annecy](https://www.tamtam.ai/c/agglomeration-du-grand-annecy) (grandannecy.fr)<br>Coordination of economic, ecological, mobility, housing, and social initiatives across 34 communes to enhance residents' quality of life. | Government Administration | 🇫🇷 Annecy | 375 | 2017 |
| 4 | [Service Départemental d'Incendie et de Secours de la Haute-Savoie](https://www.tamtam.ai/c/service-departemental-d-incendie-et-de-secours-de-la-haute-savoie) (sdis74.fr)<br>The company is a public firefighting department in Haute-Savoie, France, consisting of professional and volunteer firefighters, as well as administrative and technical staff They respond to various natural, industrial, technological, and everyday risks in the region | Government Administration | 🇫🇷 Annecy | 314 |  |
| 5 | [Annemasse Agglo](https://www.tamtam.ai/c/annemasse-agglo) (annemasse-agglo.fr)<br>Management of environment, economy, housing, transport, culture, and social services to improve quality of life in a transborder urban area. | Government Administration | 🇫🇷 Annemasse | 290 | 2007 |
| 6 | [Ville de Thonon-les-Bains](https://www.tamtam.ai/c/ville-de-thonon-les-bains) (ville-thonon.fr)<br>Local government managing urban development, cultural promotion, public services, and infrastructure projects to enhance quality of life and attract residents. | Government Administration | 🇫🇷 Thonon-les-Bains | 248 |  |
| 7 | [CPAM de Haute-Savoie](https://www.tamtam.ai/c/cpam-de-haute-savoie) (ameli.fr)<br>A social security organization in Haute-Savoie, part of a national network, working to protect the health of over 60 million insured individuals through various healthcare projects | Government Administration | 🇫🇷 Annecy | 227 |  |
| 8 | [Ville d'Annemasse](https://www.tamtam.ai/c/ville-d-annemasse) (linktr.ee)<br>The company is located in Annemasse, a strategic hub in Haute-Savoie with a growing population and strong economic development near Geneva | Government Administration | 🇫🇷 Annemasse | 170 |  |
| 9 | [Thonon Agglomération](https://www.tamtam.ai/c/thonon-agglomeration) (thononagglo.fr)<br>Coordination of 25 communes in Haute-Savoie focusing on sustainable territorial planning, community services, and regional development with over 300 staff. | Government Administration | 🇫🇷 Thonon-les-Bains | 142 | 2017 |
| 10 | [CCI Haute-Savoie](https://www.tamtam.ai/c/cci-haute-savoie) (app.utm.io)<br>Support for 38,600 local businesses and communities through training, development services, and economic growth facilitation across multiple sectors. | Government Administration | 🇫🇷 Annecy | 131 |  |
| 11 | [Syane](https://www.tamtam.ai/c/syane) (syane.fr)<br>Public energy and digital services provider supporting local authorities with electricity, gas, renewable energy, lighting, mobility, and digital infrastructure projects. | Government Administration | 🇫🇷 Poisy | 128 | 1950 |
| 12 | [Mairie de Megève](https://www.tamtam.ai/c/mairie-de-megeve) (mairie.megeve.fr)<br>Mountain resort specializing in winter sports, tourism, and alpine activities, offering extensive ski areas and high-quality accommodations. | Government Administration | 🇫🇷 Megève | 126 |  |
| 13 | [Mairie de Chamonix-Mont-Blanc](https://www.tamtam.ai/c/mairie-de-chamonix-mont-blanc) (chamonix.fr)<br>Local government providing administrative services and community support in Chamonix-Mont-Blanc, a renowned Alpine mountain commune. | Government Administration | 🇫🇷 Chamonix-Mont-Blanc | 109 |  |
| 14 | [Préfète de la Haute-Savoie](https://www.tamtam.ai/c/prefete-de-la-haute-savoie) (haute-savoie.gouv.fr)<br>Official account representing state government services in Haute-Savoie, providing information and updates on regional administrative activities and public services. | Government Administration | 🇫🇷 Annecy | 87 | 1860 |
| 15 | [Ville de Saint-Julien-en-Genevois](https://www.tamtam.ai/c/ville-de-saint-julien-en-genevois) (st-julien-en-genevois.fr)<br>The company is a local government entity in Saint-Julien-en-Genevois, focusing on providing services, facilities, and infrastructure improvements for the community's development and well-being | Government Administration | 🇫🇷 Saint-Julien-en-Genevois | 86 |  |
| 16 | [Mairie de Ville-la-Grand](https://www.tamtam.ai/c/mairie-de-ville-la-grand) (ville-la-grand.fr)<br>Urban municipality in Haute-Savoie, France, with a population of 8700 Part of Annemasse Agglomération, offering a preserved living environment and a strong economy | Government Administration | 🇫🇷 Ville-la-Grand | 84 |  |
| 17 | [Communauté de Communes du Genevois](https://www.tamtam.ai/c/communaute-de-communes-du-genevois) (cc-genevois.fr)<br>The company manages a community in Haute-Savoie, France, focusing on sustainable development and addressing the needs of a growing population near Geneva, Switzerland | Government Administration | 🇫🇷 Archamps | 82 |  |
| 18 | [SILA (Syndicat Mixte du Lac d'Annecy)](https://www.tamtam.ai/c/sila-syndicat-mixte-du-lac-d-annecy) (sila.fr)<br>Established in 1957 to protect Lake Annecy, the company specializes in wastewater treatment, waste management, environmental preservation, and water cycle management | Government Administration | 🇫🇷 Annecy | 75 | 1957 |
| 19 | [Communauté de communes pays d'Évian - vallée d'Abondance](https://www.tamtam.ai/c/communaute-de-communes-pays-d-evian-vallee-d-abondance) (cc-peva.fr)<br>Management of a diverse Alpine region with rich cultural heritage, seasonal activities, and international tourism appeal across 22 communes. | Government Administration | 🇫🇷 Publier | 74 | 2017 |
| 20 | [Communauté de Communes Faucigny Glières](https://www.tamtam.ai/c/communaute-de-communes-faucigny-glieres) (ccfg.fr)<br>Management of local public services including children’s programs, cultural and sports facilities, urban planning, housing, and infrastructure maintenance. | Government Administration | 🇫🇷 Bonneville | 60 | 2006 |
| 21 | [Rumilly Terre de Savoie](https://www.tamtam.ai/c/rumilly-terre-de-savoie) (rumilly-terredesavoie.fr)<br>Intercommunal structure managing economic development, waste, water, social aid, transport, urban planning, and tourism across 17 communes. | Government Administration | 🇫🇷 Rumilly | 54 | 2000 |
| 22 | [Pôle métropolitain du Genevois français](https://www.tamtam.ai/c/pole-metropolitain-du-genevois-francais) (genevoisfrancais.org)<br>The company is a pole in the French part of Greater Geneva, focusing on sustainable development, new mobility, and economic innovation in the region | Government Administration | 🇫🇷 Annemasse | 44 | 2004 |
| 23 | [Ville Evian](https://www.tamtam.ai/c/ville-evian) (ville-evian.fr)<br>Town on Lake Leman's French shore, promoting sustainable development, rich cultural heritage, renowned for natural beauty and sports tourism. | Government Administration | 🇫🇷 Évian-les-Bains | 44 |  |
| 24 | [Mairie de Passy](https://www.tamtam.ai/c/mairie-de-passy) (ville-passy-mont-blanc.fr)<br>Passy is a town in Pays du Mont-Blanc with a population of 11,319, offering a picturesque setting for mountain activities year-round | Government Administration | 🇫🇷 Passy | 37 |  |
| 25 | [SM3A - EPTB Arve](https://www.tamtam.ai/c/sm3a-eptb-arve) (sm3a.com)<br>The company manages watercourses for 94 municipalities, focusing on flood prevention, watercourse maintenance, biodiversity preservation, and sustainable water resource management | Government Administration | 🇫🇷 Saint-Pierre-en-Faucigny | 24 | 1994 |
| 26 | [Commune de Reignier-Ésery](https://www.tamtam.ai/c/commune-de-reignier-esery) (reignier-esery.com)<br>Government administration company located in Reignier-Esery, France, providing administrative services and support to the local community in Auvergne-Rhône-Alpes | Government Administration | 🇫🇷 Reignier-Esery | 24 |  |
| 27 | [Communauté de Communes des Montagnes du Giffre](https://www.tamtam.ai/c/communaute-de-communes-des-montagnes-du-giffre) (montagnesdugiffre.fr)<br>This government administration company is based in France and focuses on serving the Montagnes du Giffre region in Auvergne-Rhône-Alpes | Government Administration | 🇫🇷 Taninges | 22 | 2013 |
| 28 | [Syndicat des eaux Rocailles Bellecombe](https://www.tamtam.ai/c/syndicat-des-eaux-rocailles-bellecombe) (s-rb.fr)<br>A major syndicate in Haute-Savoie overseeing water supply, sanitation, and fire hydrant control across 5 communities, with in-house expertise from source to disposal | Government Administration | 🇫🇷 Fillinges | 22 | 2013 |
| 29 | [Communauté de communes Arve et Salève](https://www.tamtam.ai/c/communaute-de-communes-arve-et-saleve) (arve-saleve.fr)<br>A government administration company in France, working in the area of Arve et Saleve, providing services to local communities | Government Administration | 🇫🇷 Reignier-Esery | 20 |  |
| 30 | [Ville de Gaillard](https://www.tamtam.ai/c/ville-de-gaillard) (gaillard.fr)<br>A vibrant border town near Geneva, focusing on community engagement, urban development, and social diversity with a strong emphasis on innovation and mutual respect | Government Administration | 🇫🇷 Gaillard | 18 |  |

## 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 15, 2026.

## More company lists in the Haute-Savoie department

- [The largest companies in the Haute-Savoie department](https://www.tamtam.ai/l/largest-companies-haute-savoie) (768)
- [Manufacturers in the Haute-Savoie department](https://www.tamtam.ai/l/manufacturers-haute-savoie) (110)
- [Retail chains in the Haute-Savoie department](https://www.tamtam.ai/l/retail-chains-haute-savoie) (103)
- [Multinational companies in the Haute-Savoie department](https://www.tamtam.ai/l/multinational-companies-haute-savoie) (100)
- [Contract manufacturers in the Haute-Savoie department](https://www.tamtam.ai/l/contract-manufacturers-haute-savoie) (84)
- [Companies with in-house R&D in the Haute-Savoie department](https://www.tamtam.ai/l/r-and-d-companies-haute-savoie) (83)
- [Hardware manufacturers in the Haute-Savoie department](https://www.tamtam.ai/l/hardware-companies-haute-savoie) (76)
- [Family-owned companies in the Haute-Savoie department](https://www.tamtam.ai/l/family-owned-companies-haute-savoie) (58)
- [Industrial Machinery Manufacturing companies in the Haute-Savoie department](https://www.tamtam.ai/l/industrial-machinery-manufacturing-companies-haute-savoie) (47)
- [Public sector organisations in the Haute-Savoie department](https://www.tamtam.ai/l/public-sector-organisations-haute-savoie) (47)
- [Professional services firms in the Haute-Savoie department](https://www.tamtam.ai/l/professional-services-firms-haute-savoie) (41)
- [Automotive manufacturers and suppliers in the Haute-Savoie department](https://www.tamtam.ai/l/automotive-companies-haute-savoie) (36)
- [Aerospace and defence companies in the Haute-Savoie department](https://www.tamtam.ai/l/aerospace-and-defense-companies-haute-savoie) (35)
- [Critical infrastructure operators in the Haute-Savoie department](https://www.tamtam.ai/l/critical-infrastructure-operators-haute-savoie) (35)
- [Hospitality companies in the Haute-Savoie department](https://www.tamtam.ai/l/hospitality-companies-haute-savoie) (32)
- [Real Estate companies in the Haute-Savoie department](https://www.tamtam.ai/l/real-estate-companies-haute-savoie) (32)
- [Accounting firms in the Haute-Savoie department](https://www.tamtam.ai/l/accounting-firms-haute-savoie) (30)
- [Distributors and wholesalers in the Haute-Savoie department](https://www.tamtam.ai/l/distributors-and-wholesalers-haute-savoie) (29)
- [Retail companies in the Haute-Savoie department](https://www.tamtam.ai/l/retail-companies-haute-savoie) (28)
- [Hotel and hospitality groups in the Haute-Savoie department](https://www.tamtam.ai/l/hospitality-groups-haute-savoie) (27)
- [Accounting companies in the Haute-Savoie department](https://www.tamtam.ai/l/accounting-companies-haute-savoie) (27)

## The same list elsewhere in France

- [Government Administration companies in France](https://www.tamtam.ai/l/government-administration-companies-france) (1,860)
- [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) (199)
- [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 Hauts-de-Seine department](https://www.tamtam.ai/l/government-administration-companies-hauts-de-seine) (43)
- [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 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) (4,199)

---

Source: https://www.tamtam.ai/l/government-administration-companies-haute-savoie