The critical infrastructure operators in Loiret are primarily large public and private entities focused on healthcare, logistics, banking, and government administration. Notable organizations include CHU Orléans, a university hospital; Deret, specializing in transport and logistics; and Caisse d'Epargne Loire Centre, a regional bank. Government bodies like Centre-Val de Loire Region and Orléans Métropole also feature prominently.
A clear pattern emerges with Orléans serving as the dominant headquarters city for most of these critical infrastructure operators. The list reflects a blend of long-established institutions, such as Caisse d'Epargne Loire Centre founded in 1818, and more recent establishments like Pôle Santé Oréliance from 2013, indicating continuous development in essential services.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
CHU Orléanschu-orleans.fr
State-of-the-art university hospital located 1 hour south of Paris with 1,300 beds, modern facilities, and a staff of 5,323 professionals Located 10km from downtown Orléans |
1,368 | |||
| 2 | 1,213 | ||||
| 3 |
Caisse d'Epargne Loire Centrecaisse-epargne-loirecentre.fr
Provides banking, savings, insurance, and credit solutions to individuals, professionals, and businesses across the Centre region of France. |
1,191 | |||
| 4 |
Centre-Val de Loire Regioncentre-valdeloire.fr
French region, rich in nature, culture, and heritage, recognized for agriculture, pharmaceuticals, cosmetics, renewable energy, and industrial rubber sectors. |
821 | |||
| 5 |
Orléans Métropoleorleans-metropole.fr
Regional authority managing urban development, public services, and community welfare across 22 communes with a population of nearly 300,000. |
689 | |||
| 6 |
ETABLISSEMENT PUBLIC LOIREeptb-loire.fr
Coordination of water resource management, flood risk evaluation, and innovative development for over 60 regional and departmental authorities in Loire basin. |
518 | |||
| 7 |
Carsat Centre-Val de Loirecarsat-cvl.fr
Provides public services for private sector insured and employers, managing retirement, supporting sick, disabled, and elderly individuals, and preventing occupational accidents and diseases. |
393 | |||
| 8 |
Service départemental d'incendie et de secours du Loiret (SDIS45)sdis45.com
It is a fire and rescue department in Loiret, providing emergency services and disaster relief to the local community |
325 | |||
| 9 | 
CENTRE HOSPITALIER REGIONAL D'ORLEANS
A medical practice company in Orleans, France, providing healthcare services at a regional hospital |
290 | |||
| 10 |
UGECAM Centre ALPCgroupe-ugecam.fr
The Groupe UGECAM operates in the healthcare and social sectors, providing care, rehabilitation, and support for people of all ages, with a focus on professional inclusion for disabled workers |
265 | |||
| 11 |
EPSM du Loiret Georges Daumézonepsm-loiret.fr
Departmental mental health facility providing inpatient and outpatient psychiatric care, specialized treatments, and support services across the Loiret region. |
255 | |||
| 12 |
Pôle Santé Orélianceoreliance.com
Group of clinics offering extensive medical, surgical, and emergency services including cardiology, obstetrics, general emergencies, and hand care. |
241 | |||
| 13 |
Crédit Mutuel du Centrecreditmutuel.fr
Regional mutual bank with 124 branches in the Centre-Val de Loire region, focusing on quality service at fair cost for customers |
226 | |||
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| 14 |
Groupe MLabmlab-groupe.fr
A group of laboratories located in Paris and surrounding areas, offering specialized medical analyses and recruiting professionals in the medical field |
124 | |||
| 15 |
Centre hospitalier régional d'Orléanschr-orleans.fr
Located 1 hour South of Paris, this new 1300-bed hospital with state-of-the-art facilities serves the city of Orléans with 5323 professionals |
120 | |||
| 16 |
Assurance Maladie du Loiretassurance-maladie.ameli.fr
Contributing to a collective effort, the company protects the health of over 640,000 individuals by providing access to healthcare and innovative projects |
105 | |||
| 17 |
Direction régionale du service médical (DRSM) Centre-Val de Loirelasecurecrute.fr
The company is a regional medical service within the French healthcare system, working to ensure access to care, prevent professional exclusion, and combat healthcare fraud |
88 | |||
| 18 |
Centre Hospitalier Pierre Dezarnaulds
Provides comprehensive medical, surgical, and obstetric care, including emergency services, elderly care, and various specialized consultations for local community health needs. |
49 | |||
| 19 |
TRANSDEV LOIRETtransdevloiret.com
The company provides integrated, reliable, and multimodal mobility solutions globally, contributing to the development of communities and well-being through innovative transportation services |
31 | |||
| 20 |
HAD Loiret - LNA Santéhad-loiret.lna-sante.com
Providing 24/7 medical care at home to reduce hospital stays, prevent hospitalization, and coordinate complex medical and paramedical care |
27 | |||
| 21 |
Hôpital et EHPAD Publics Loire Beaucech-beaugency.fr
The company operates a local hospital and public nursing homes providing comprehensive care for residents including medical, therapeutic, and social support services |
24 | |||
| 22 |
Groupama Entreprises Paris Val de Loiregroupama.fr
Engaged actor supporting regional development, providing insurance for over 2,600 businesses in various sectors, with a focus on protecting clients, employees, and operations |
18 | |||
| 23 |
Clinea Les Buissonnetsclinea.fr
Located in Olivet, the clinic provides comprehensive care for patients in need of medical, surgical, and rehabilitation treatments after acute illness or surgery, in both inpatient and outpatient settings |
17 | |||
| 24 |
Clinique de Montargisclinique-montargis.fr
Specialized establishment offering orthopedic and ophthalmological surgeries, as well as visceral, urological, ENT, gastroenterology, and cardiology services, along with rehabilitation and multidisciplinary consultations |
13 | |||
| 25 |
LTMA TRANSPORT ET LOGISTIQUE
A transport company established in January 2016, specializing in express deliveries, regular trips, messaging, chartering, storage, and last-mile delivery with a diverse vehicle fleet |
8 | |||
| 26 |
TAO Mobilitéstao-mobilites.fr
A subsidiary of Keolis, operating public transportation network in Orléans With over 50 roles, they prioritize customer satisfaction across various departments |
6 | |||
| 27 |
Maximilien Karol Transport
Transportation/trucking company based in France specializing in moving goods from one location to another efficiently and reliably |
3 | |||
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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 Loiret department
- The largest companies in the Loiret department 432
- Companies with in-house R&D in the Loiret department 53
- Manufacturers in the Loiret department 46
- Retail chains in the Loiret department 45
- Multinational companies in the Loiret department 44
- Public sector organisations in the Loiret department 42
- Hardware manufacturers in the Loiret department 30
- Distributors and wholesalers in the Loiret department 27
- Contract manufacturers in the Loiret department 25
The same list elsewhere in France
- Critical infrastructure operators in France 2,721
- Critical infrastructure operators in Île-de-France 780
- Critical infrastructure operators in Auvergne-Rhône-Alpes 299
- Critical infrastructure operators in Grand Est 257
- Critical infrastructure operators in Occitanie 216
- Critical infrastructure operators in Nouvelle-Aquitaine 209
- Critical infrastructure operators in Provence-Alpes-Côte d'Azur 200
- Critical infrastructure operators in Hauts-de-France 174
- Critical infrastructure operators in the Hauts-de-Seine department 169
- Critical infrastructure operators in Pays de la Loire 127
- Critical infrastructure operators in Brittany 120
- Critical infrastructure operators in Normandy 103
- Critical infrastructure operators in the Bouches-du-Rhône department 98
- Critical infrastructure operators in the Rhône department 94
- Critical infrastructure operators in Centre-Val de Loire 87
- Critical infrastructure operators in the Nord department 87
- Critical infrastructure operators in Bourgogne-Franche-Comté 76
- Critical infrastructure operators in the Haute-Garonne department 64
- Critical infrastructure operators in the Gironde department 63
- Critical infrastructure operators in the Loire-Atlantique department 59
- Critical infrastructure operators in the Hérault department 57
- Critical infrastructure operators in the Seine-Saint-Denis department 53
- Critical infrastructure operators in the Seine-Maritime department 46
- Critical infrastructure operators in Paris 331