# 26 leading critical infrastructure operators in the Indre-et-Loire department

Tamtam tracks 26 critical infrastructure operators headquartered in the Indre-et-Loire department. This list ranks all of them by number of employees on LinkedIn, led by Crédit Agricole des régions du Centre - Recrutement, Groupe Saint-Gatien and JUSSIEU secours France. Their median headcount is 54. Half of them were founded in 1999 or later. The most common headquarters are Tours (12).

This selection of critical infrastructure operators in Indre-et-Loire highlights a mix of public and private entities, primarily in healthcare, transportation, and public services. Notable companies include Crédit Agricole des régions du Centre, a banking group, and Groupe Saint-Gatien, which operates a network of private clinics. JUSSIEU secours France provides ambulance services, while HUMENSIA focuses on home health care. SDIS 37 is the local fire and rescue service, and Technicentre Industriel de Saint Pierre des Corps handles rail maintenance. These organizations are generally well-established, with several founded in the latter half of the 20th century.

A clear pattern is the concentration of headquarters in Tours and Saint-Pierre-des-Corps, reflecting these cities' roles as economic hubs in the department. The presence of multiple rail transportation companies like Technicentre Industriel de Saint Pierre des Corps, Keolis Tours, and TER Centre-Val de Loire - SNCF Voyageurs indicates a significant regional focus on rail infrastructure and public transit. Healthcare is also a dominant sector, with several hospitals and service providers ensuring essential care for the population.

🇫🇷 Indre-et-Loire · 26 companies · Updated Nov 11, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Crédit Agricole des régions du Centre - Recrutement](https://www.tamtam.ai/c/credit-agricole-des-regions-du-centre-recrutement) (recrutement.ca-centre-recrute.fr)<br>A group of regional Credit Agricole branches with a common recruitment center, offering diverse career opportunities and professional mobility within the company | Banking | 🇫🇷 Tours | 3,535 |  |
| 2 | [Groupe Saint-Gatien](https://www.tamtam.ai/c/groupe-saint-gatien) (groupesaintgatien.com)<br>Established in 1974, this French group of private clinics specializes in healthcare services, with 19 establishments nationwide employing over 5000 people and 1700 doctors | Hospitals and Health Care | 🇫🇷 Tours | 1,552 | 1974 |
| 3 | [JUSSIEU secours France](https://www.tamtam.ai/c/jussieu-secours-france) (jussieu-secours.fr)<br>Provides ambulance and patient transport services nationwide, ensuring accessible, efficient healthcare support with professional staff and innovative protocols. | Ambulance Services | 🇫🇷 Saint-Avertin | 875 | 1978 |
| 4 | [HUMENSIA](https://www.tamtam.ai/c/humensia) (humensia.org)<br>Since 1955, this company provides local home health care services with a focus on personalized support for autonomy and well-being | Individual and Family Services | 🇫🇷 Tours | 461 | 1955 |
| 5 | [SDIS 37 - Service Départemental d’Incendie et de Secours d'Indre-et-Loire](https://www.tamtam.ai/c/sdis-37-service-departemental-d-incendie-et-de-secours-d-indre-et-loire) (sdis37.fr)<br>The Indre-et-Loire Fire and Rescue Service (SDIS) is a public administrative organization managing emergency services, ensuring uniform assistance to all citizens | Public Safety | 🇫🇷 Fondettes | 306 | 1999 |
| 6 | [Pôle Santé LEONARD DE VINCI](https://www.tamtam.ai/c/pole-sante-leonard-de-vinci) (vivalto-sante.fr)<br>Private healthcare center offering consultations, hospitalization, emergency services, and multidisciplinary care in medicine, surgery, obstetrics, oncology, and rehabilitation. | Hospitals and Health Care | 🇫🇷 Chambray-lès-Tours | 279 | 2008 |
| 7 | [Technicentre Industriel de Saint Pierre des Corps - SNCF Voyageurs Matériel](https://www.tamtam.ai/c/technicentre-industriel-de-saint-pierre-des-corps-sncf-voyageurs-materiel) (emploi.sncf.com)<br>A leading industrial maintenance center in the rail sector, specializing in heavy maintenance, renovation, and upgrades for trains to enhance reliability, comfort, and safety | Rail Transportation | 🇫🇷 Saint-Pierre-des-Corps | 146 |  |
| 8 | [Keolis Tours](https://www.tamtam.ai/c/keolis-tours) (keolis-tours-recrute.fr)<br>operation of tramway and bus network serving 25 communes with 160 buses and 21 trams, providing 40 million annual trips | Truck Transportation | 🇫🇷 Saint-Pierre-des-Corps | 144 |  |
| 9 | [CPAM d'Indre-et-Loire](https://www.tamtam.ai/c/cpam-d-indre-et-loire) (assurance-maladie.ameli.fr)<br>The company is a private organization that manages health insurance and benefits in Indre-et-Loire, France, working with healthcare and local businesses to improve the French healthcare system | Government Administration | 🇫🇷 Tours | 133 |  |
| 10 | [NCT+ Alliance - St Gatien](https://www.tamtam.ai/c/nct-alliance-st-gatien) (nctplus.com)<br>Provides comprehensive healthcare services including medical consultations, treatments, and patient care in a clinical setting focused on well-being. | Hospitals and Health Care | 🇫🇷 Tours | 105 |  |
| 11 | [FERROTRACT](https://www.tamtam.ai/c/ferrotract) (ferrotract.fr)<br>Dynamic railway company providing services such as train operations, equipment transport, and ground assistance with a modern fleet of environmentally friendly locomotives | Truck Transportation | 🇫🇷 Saint-Pierre-des-Corps | 89 | 2011 |
| 12 | [TER Centre-Val de Loire - SNCF Voyageurs](https://www.tamtam.ai/c/ter-centre-val-de-loire-sncf-voyageurs) (remi-centrevaldeloire.fr)<br>A transportation company in Centre-Val de Loire region providing reliable and efficient train services for 70,000 passengers daily, focusing on sustainable mobility | Rail Transportation | 🇫🇷 Tours | 69 |  |
| 13 | [SES Nouvelle](https://www.tamtam.ai/c/ses-nouvelle) (ses-signalisation.com)<br>Provides satellite communication services including broadcasting, data connectivity, and global coverage for media, government, and enterprise customers. | Construction | 🇫🇷 Tours | 54 | 1956 |
| 14 | [Transdev Touraine](https://www.tamtam.ai/c/transdev-touraine) (indreetloire.transdev-centrevaldeloire.com)<br>A company specializing in passenger transportation by bus, operating within the Rémi 37 network | Ground Passenger Transportation | 🇫🇷 Tours | 49 |  |
| 15 | [Centre Hospitalier de Loches](https://www.tamtam.ai/c/centre-hospitalier-de-loches) (ch-loches.fr)<br>The company focuses on improving patient care and services, collaborating with local health networks to offer a diverse range of healthcare services | Hospitals and Health Care | 🇫🇷 Loches | 47 | 1978 |
| 16 | [Pôle Bel-Air](https://www.tamtam.ai/c/pole-bel-air) (belair.croix-rouge.fr)<br>Specialized establishment in Medical Care and Rehabilitation, recognized as an expert center in 6 areas Offers various services including day hospitalization, mobile teams, and rehabilitation at home | Hospitals and Health Care | 🇫🇷 La Membrolle-sur-Choisille | 43 |  |
| 17 | [Centre hospitalier de Luynes](https://www.tamtam.ai/c/centre-hospitalier-de-luynes) (chluynes.fr)<br>The hospital offers diverse healthcare services including geriatric rehabilitation, palliative care, nursing home facilities, and home nursing services in Luynes, France | Hospitals and Health Care | 🇫🇷 Luynes | 30 | 1683 |
| 18 | [Syndicat intercommunal d'énergie d'Indre-et-Loire](https://www.tamtam.ai/c/syndicat-intercommunal-d-energie-d-indre-et-loire) (sieil37.fr)<br>The company manages public energy distribution networks in Indre-et-Loire, develops electric networks, offers GIS services, and owns public EV charging infrastructure | Government Administration | 🇫🇷 Tours | 27 | 1937 |
| 19 | [ECORAIL TRANSPORT](https://www.tamtam.ai/c/ecorail-transport) (ecorailtransport.fr)<br>A French rail transport company offering efficient, secure, and environmentally-friendly freight solutions across France and Europe, combining rail and road transport for optimal delivery | Rail Transportation | 🇫🇷 Saint-Pierre-des-Corps | 26 | 2010 |
| 20 | [Symphonics](https://www.tamtam.ai/c/symphonics) (symphonics.fr)<br>Symphonics offers innovative energy services for residential and commercial clients, optimizing consumption, providing diagnostics, recommendations, and cost savings on electricity bills | Consumer Services | 🇫🇷 Tours | 25 | 2023 |
| 21 | [EHPAD La Bourdaisière](https://www.tamtam.ai/c/ehpad-la-bourdaisiere) (ehpad-montlouis.fr)<br>Located in Montlouis sur Loire, this long-term care facility provides accommodation for up to 130 residents | Hospitals and Health Care | 🇫🇷 Montlouis-sur-Loire | 22 | 1961 |
| 22 | [EHPAD Gaston-Chargé](https://www.tamtam.ai/c/ehpad-gaston-charge) (facebook.com)<br>A nursing home located in Abilly, France, with the capacity to accommodate 114 residents, providing comprehensive care and support for the elderly | Hospitals and Health Care | 🇫🇷 Abilly | 18 |  |
| 23 | [SYNDICAT DES MOBILITES DE TOURAINE](https://www.tamtam.ai/c/syndicat-des-mobilites-de-touraine) (smt-touraine.fr)<br>Government administration company based in Tours, France, focusing on mobility solutions and services in the Centreval De Loire region | Government Administration | 🇫🇷 Tours | 14 | 2018 |
| 24 | [OUEST RAIL](https://www.tamtam.ai/c/ouest-rail)<br>A transportation company based in Paris, France, specializing in trucking and railroad services | Truck Transportation | 🇫🇷 Saint-Pierre-des-Corps | 8 | 2017 |
| 25 | [MOOV'](https://www.tamtam.ai/c/moov)<br>Low-cost airline part of the AIRCIEL group, offering budget-friendly flight options to a wide range of destinations | Airlines and Aviation | 🇫🇷 Tours | 5 | 2018 |
| 26 | [TOURAINE TRANSPORT (GROUPE GARIOU)](https://www.tamtam.ai/c/touraine-transport-groupe-gariou) (transports-gariou.com)<br>A reliable partner for all road transport needs in France and neighboring countries, offering various services including exceptional convoys and specialized equipment | Truck Transportation | 🇫🇷 Parçay-Meslay | 5 |  |

## 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 Indre-et-Loire department

- [The largest companies in the Indre-et-Loire department](https://www.tamtam.ai/l/largest-companies-indre-et-loire) (526)
- [Manufacturers in the Indre-et-Loire department](https://www.tamtam.ai/l/manufacturers-indre-et-loire) (49)
- [Companies with in-house R&D in the Indre-et-Loire department](https://www.tamtam.ai/l/r-and-d-companies-indre-et-loire) (45)
- [Retail chains in the Indre-et-Loire department](https://www.tamtam.ai/l/retail-chains-indre-et-loire) (37)
- [Multinational companies in the Indre-et-Loire department](https://www.tamtam.ai/l/multinational-companies-indre-et-loire) (37)
- [Hardware manufacturers in the Indre-et-Loire department](https://www.tamtam.ai/l/hardware-companies-indre-et-loire) (33)
- [Professional services firms in the Indre-et-Loire department](https://www.tamtam.ai/l/professional-services-firms-indre-et-loire) (31)
- [Public sector organisations in the Indre-et-Loire department](https://www.tamtam.ai/l/public-sector-organisations-indre-et-loire) (27)
- [IT services companies in the Indre-et-Loire department](https://www.tamtam.ai/l/it-services-companies-indre-et-loire) (27)

## The same list elsewhere in France

- [Critical infrastructure operators in France](https://www.tamtam.ai/l/critical-infrastructure-operators-france) (2,721)
- [Critical infrastructure operators in Île-de-France](https://www.tamtam.ai/l/critical-infrastructure-operators-ile-de-france) (780)
- [Critical infrastructure operators in Auvergne-Rhône-Alpes](https://www.tamtam.ai/l/critical-infrastructure-operators-auvergne-rhone-alpes) (299)
- [Critical infrastructure operators in Grand Est](https://www.tamtam.ai/l/critical-infrastructure-operators-grand-est) (257)
- [Critical infrastructure operators in Occitanie](https://www.tamtam.ai/l/critical-infrastructure-operators-occitanie) (216)
- [Critical infrastructure operators in Nouvelle-Aquitaine](https://www.tamtam.ai/l/critical-infrastructure-operators-nouvelle-aquitaine) (209)
- [Critical infrastructure operators in Provence-Alpes-Côte d'Azur](https://www.tamtam.ai/l/critical-infrastructure-operators-provence-alpes-cote-dazur) (200)
- [Critical infrastructure operators in Hauts-de-France](https://www.tamtam.ai/l/critical-infrastructure-operators-hauts-de-france) (174)
- [Critical infrastructure operators in the Hauts-de-Seine department](https://www.tamtam.ai/l/critical-infrastructure-operators-hauts-de-seine) (169)
- [Critical infrastructure operators in Pays de la Loire](https://www.tamtam.ai/l/critical-infrastructure-operators-pays-de-la-loire) (127)
- [Critical infrastructure operators in Brittany](https://www.tamtam.ai/l/critical-infrastructure-operators-brittany) (120)
- [Critical infrastructure operators in Normandy](https://www.tamtam.ai/l/critical-infrastructure-operators-normandy) (103)
- [Critical infrastructure operators in the Bouches-du-Rhône department](https://www.tamtam.ai/l/critical-infrastructure-operators-bouches-du-rhone) (98)
- [Critical infrastructure operators in the Rhône department](https://www.tamtam.ai/l/critical-infrastructure-operators-rhone) (94)
- [Critical infrastructure operators in Centre-Val de Loire](https://www.tamtam.ai/l/critical-infrastructure-operators-centre-val-de-loire) (87)
- [Critical infrastructure operators in the Nord department](https://www.tamtam.ai/l/critical-infrastructure-operators-nord) (87)
- [Critical infrastructure operators in Bourgogne-Franche-Comté](https://www.tamtam.ai/l/critical-infrastructure-operators-bourgogne-franche-comte) (76)
- [Critical infrastructure operators in the Haute-Garonne department](https://www.tamtam.ai/l/critical-infrastructure-operators-haute-garonne) (64)
- [Critical infrastructure operators in the Gironde department](https://www.tamtam.ai/l/critical-infrastructure-operators-gironde) (63)
- [Critical infrastructure operators in the Loire-Atlantique department](https://www.tamtam.ai/l/critical-infrastructure-operators-loire-atlantique) (59)
- [Critical infrastructure operators in the Hérault department](https://www.tamtam.ai/l/critical-infrastructure-operators-herault) (57)
- [Critical infrastructure operators in the Seine-Saint-Denis department](https://www.tamtam.ai/l/critical-infrastructure-operators-seine-saint-denis) (53)
- [Critical infrastructure operators in the Seine-Maritime department](https://www.tamtam.ai/l/critical-infrastructure-operators-seine-maritime) (46)
- [Critical infrastructure operators in Paris](https://www.tamtam.ai/l/critical-infrastructure-operators-paris) (331)

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Source: https://www.tamtam.ai/l/critical-infrastructure-operators-indre-et-loire