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List of critical infrastructure operators in Île-de-France

Tamtam tracks 732 critical infrastructure operators headquartered in Île-de-France. This list ranks the 100 largest by number of employees on LinkedIn, led by VINCI Concessions, VINCI Airports and BNP Paribas. Their median headcount is 8,242. Half of them were founded in 1993 or later. The most common headquarters are Paris (50), Puteaux (7) and Issy-les-Moulineaux (5).

🇫🇷 Île-de-France100 companiesUpdated Oct 24, 2026
#CompanyIndustryHeadquarters EmployeesFounded
1
VINCI Concessionsvinci-concessions.com

A global leader in mobility infrastructure, designing, financing, building, operating, and maintaining airports, highways, and railway projects in 23 countries

Civil Engineering 🇫🇷 Nanterre 219,000 n/a
2
VINCI Airportsvinci-airports.com

Operates, develops, finances, builds airports globally, optimizing performance, modernizing infrastructure, and driving environmental transition with a net-zero emissions goal.

Airlines and Aviation 🇫🇷 Nanterre 219,000 n/a
3
BNP Paribasgroup.bnpparibas

Leading bank in Europe, provides financial solutions for individuals, businesses, and institutions, including financing, investment, savings, and protection insurance across 64 countries.

Banking 🇫🇷 Paris 155,716 1848
4
Orangeorange.com

A leading global telecommunications operator offering services to millions of customers and multinational companies across 26 countries

Telecommunications 🇫🇷 Issy-les-Moulineaux 146,935 n/a
5
EDFedf.fr

builds a net-zero energy future with electricity, innovative solutions, and services, to help save the planet and drive wellbeing and economic development.

Electric Power Generation 🇫🇷 Paris 93,235 n/a
6
TotalEnergiestotalenergies.com

Global energy company with 105,000 employees focused on energy transition, safety, ethics, innovation, and career development worldwide.

Oil and Gas 🇫🇷 Paris La Défense Cedex 86,609 n/a
7
Groupe Crédit Agricolecredit-agricole.com

Leading European retail bank offering comprehensive financial services including loans, insurance, asset management, corporate banking, and customer-focused solutions.

Banking 🇫🇷 Montrouge 76,287 n/a
8
Groupe SNCFgroupe-sncf.com

A global leader in public transportation offering train services, passenger solutions, ticket booking, and mobility options through five divisions

Rail Transportation 🇫🇷 La Plaine Saint-Denis 60,749 1938
9
La Poste Groupelapostegroupe.com

International postal services provider delivering parcels globally while managing banking, insurance, digital trust solutions, and essential public services through a vast physical network.

Transportation, Logistics, Supply Chain and Storage 🇫🇷 Paris 56,037 n/a
10
Veoliaveolia.com

Global environmental services, building environmental security for public health, industry competitiveness. Cleans pollution, reduces carbon, regenerates resources through water, waste, energy solutions.

Environmental Services 🇫🇷 Aubervilliers 49,296 1853
11
Bouygues Groupbouygues.com

Provides solutions addressing essential societal needs like housing, transportation, low-carbon energy, communication, news, and entertainment across over 80 countries.

Construction 🇫🇷 Paris 45,769 n/a
12
ENGIEengie.com

Global energy value chain operator, from renewable electricity production and green gas to infrastructure management and energy supply for diverse customers.

Renewable Energy Power Generation 🇫🇷 La Garenne-Colombes 45,706 n/a
13
Societe Generalesocietegenerale.com

A leading European financial services group offering sustainable growth, innovative financial solutions, and responsible banking to individuals, businesses, and investors worldwide

Banking 🇫🇷 Paris 44,226 n/a
14
Groupe BPCEgroupebpce.com

French banking and insurance services through cooperative networks and subsidiaries, offering savings, financing, cash management, and wholesale banking to customers.

Banking 🇫🇷 Paris 42,971 n/a
15
Greater Paris University Hospitals - AP-HPaphp.fr

Manages 39 university hospitals in Greater Paris, treating 8 million people annually through consultations, emergencies, and hospitalizations, providing public healthcare around the clock.

Hospitals and Health Care 🇫🇷 Paris 38,756 1849
16
Groupamagroupama-gan-recrute.com

The company emphasizes mutualist values, prioritizing human connection over qualifications, to serve their 115 million clients worldwide with trust-building expertise

Insurance 🇫🇷 Paris 31,559 1900
17
GEODISgeodis.com

Leading global logistics provider recognized for its supply chain expertise; specializes in freight forwarding, contract logistics, and transport across 170 countries.

Transportation, Logistics, Supply Chain and Storage 🇫🇷 Levallois-Perret 31,434 1904
18
Assurance Maladieassurance-maladie.ameli.fr

Guarantees universal rights and healthcare access, supports health preservation, and enhances system efficiency through a national network of dedicated collaborators. Collective responsibility.

Government Administration 🇫🇷 Paris 28,726 n/a
19
Orange Businessorange-business.com

Leading European network and digital integrator leveraging expertise in next-generation connectivity, cloud, and cybersecurity solutions for positive impact on customers and planet.

IT Services and IT Consulting 🇫🇷 Paris 28,626 n/a
20
SUEZsuez.com

Provides essential water and waste management services to protect natural resources and improve quality of life for global communities and ecosystems.

Environmental Services 🇫🇷 Paris 26,423 n/a
21
Enedisenedis.fr

They manage the public electricity distribution network across most of France, with nearly 39,000 employees maintaining and expanding the 13 million km network

Utilities 🇫🇷 Puteaux 24,479 n/a
22
SNCF Réseausncf-reseau.fr

public entity managing national railway infrastructure, unifying previous services, ensuring clear governance, and coordinating with railway operator SNCF Mobilités.

Rail Transportation 🇫🇷 Saint-Denis 23,115 2015
23
Caisse dEpargnecaisse-epargne.fr

Regional cooperative bank part of a large banking group, financing public sector, social housing, and social economy actors.

Banking 🇫🇷 Paris 21,469 n/a
24
La Banque Postalelabanquepostale.com

French bank offering financial products and services to nearly half the French population, focusing on accessibility, trust, and local presence for all customers.

Banking 🇫🇷 Paris 20,318 2006
25
BNP Paribas Personal Financepersonal-finance.bnpparibas

Offers consumer lending products including personal loans, collaborating with retailers, automakers, and financial institutions to promote responsible consumption.

Banking 🇫🇷 Paris 20,000 2008
26
SNCF Voyageurssncf-voyageurs.com

SNCF Voyageurs is a subsidiary of the SNCF Group responsible for passenger transportation on the French national railway network

Rail Transportation 🇫🇷 Saint-Denis 18,564 2020
27
LCLlcl.fr

Provides banking services for individuals, professionals, businesses, and private banking clients through a national network of branches and employees.

Banking 🇫🇷 Villejuif 16,616 n/a
28
BNP Paribas CIBcib.bnpparibas

Offers tailored solutions in capital markets, securities services, financing, treasury, and advisory services to businesses, anticipating transformation and driving success.

Financial Services 🇫🇷 Paris 15,972 n/a
29
Worldlineworldline.com

Helps businesses accelerate their growth journey quickly, simply, and securely with advanced payments technology, local expertise, and customized solutions.

Financial Services 🇫🇷 Puteaux 15,714 n/a
30
Natixis Corporate & Investment Bankingcib.natixis.com

Offers global advisory, investment banking, financing, and capital markets services to corporations and financial institutions worldwide, committed to carbon neutrality.

Financial Services 🇫🇷 Paris 15,546 n/a
31
Crédit Mutuelcreditmutuel.com

A mutual banking network across France, focused on quality service for members, long-term development, and employee growth within a decentralized structure.

Banking 🇫🇷 Paris 15,063 n/a
32
Crédit Agricole CIBca-cib.com

Corporate and investment bank, global financial services for large corporations and institutions, capital markets, structured finance, commercial banking, pioneering climate finance.

Banking 🇫🇷 Montrouge 14,647 2004
33
Framatomeframatome.com

Designs, services and installs components, fuel, and instrumentation and control systems for global nuclear power plants while providing digital and technical expertise.

Utilities 🇫🇷 Courbevoie 14,188 1958
34
Transdevtransdev.com

Provides safe, reliable, and innovative public transportation solutions globally, empowering daily freedom to move for millions of passengers across 19 countries, serving common good.

Urban Transit Services 🇫🇷 Issy-les-Moulineaux 13,519 2011
35
Freeetre-free.fr

Leading European telecommunications group offering fixed and mobile high-speed internet, serving millions of subscribers across France, Italy, and Poland.

Telecommunications 🇫🇷 Paris 13,192 1999
36
Veolia | Water Techveoliawatertechnologies.com

Provides global water technology expertise, ensuring performance, sustainability, and resource protection for communities and industries through advanced solutions and services.

Environmental Services 🇫🇷 Aubervilliers 13,064 n/a
37
Oranoorano.group

International operator in nuclear materials, provides high-value products and services across the entire fuel cycle, addressing energy and health challenges through expertise and innovation.

Nuclear Electric Power Generation 🇫🇷 Châtillon 12,605 2018
38
Allianz Partnersallianz-partners.com

Provides global B2B2C insurance and assistance solutions, including international health, life, travel, automotive, and general assistance, focusing on innovative, customer-driven services.

Insurance 🇫🇷 Saint-Ouen 12,480 n/a
39
ENGIE Solutions Franceengie-solutions.com

Provides comprehensive, lasting solutions to businesses, industries, and communities for carbon neutrality, improving infrastructure competitiveness, city attractiveness, and living/working comfort.

Services for Renewable Energy 🇫🇷 La Garenne-Colombes 12,252 n/a
40
Bouygues Telecombouyguestelecom.fr

Connecting people through technology, enhancing human relationships, and providing various telecom, IT, and digital services to foster connections.

Telecommunications 🇫🇷 Meudon-la-Forêt 12,092 1996
41
SFRrecrutement.sfr.com

French telecoms operator providing comprehensive range of mobile and broadband services to private and business customers, leading market shares.

Telecommunications 🇫🇷 Paris 11,294 1987
42
AXA en Franceaxa.fr

A global leader in insurance, AXA protects 93 million clients worldwide with a range of products and services for individuals, professionals, and businesses

Insurance 🇫🇷 Nanterre 11,225 n/a
43
Societe Generale Corporate and Investment Banking - SGCIBsocietegenerale.com

Supports clients through expansion and challenges, offering tailored solutions, leveraging potential, and providing authentic advisory relationships for financial issues and risk management.

Financial Services 🇫🇷 Nanterre 10,078 1990
44
CICcic.fr

French banking group with regional banks, branches, staff, serving retail clients, self-employed professionals, and companies across France.

Banking 🇫🇷 Paris 9,958 1859
45
ELSANelsan.care

Operates 217 private hospitals and centers across France, providing quality, innovative, and human care to over 4.8 million patients annually.

Hospitals and Health Care 🇫🇷 Paris 9,463 n/a
46
SGsocietegenerale.fr

Formed from a merger, it is a major French retail bank serving individuals, professionals, and businesses, focused on local presence and digital services.

Banking 🇫🇷 Paris 9,003 n/a
47
Banque de Francebanque-france.fr

Central bank of France linked to the European Central Bank Maintains price stability, implements single monetary policy, regulates payment systems, supervises financial institutions

Banking 🇫🇷 Paris 8,935 1800
48
Ramsay Santéramsaysante.fr

European leader in private hospitalization and primary care, offering medical, surgical, rehabilitation, and mental health services across multiple countries, innovating for better health outcomes.

Hospitals and Health Care 🇫🇷 Paris 8,739 1987
49
Worldwide Flight Services (WFS)wfs.aero

Global air cargo logistics and best-in-class ground handling partner, offering extensive aviation services including cargo, baggage, and ramp services.

Airlines and Aviation 🇫🇷 Paris 8,548 1984
50
Koriankorian.fr

Leading European network for personalized care, including nursing homes, health facilities, and home services for vulnerable individuals.

Hospitals and Health Care 🇫🇷 Paris 8,242 n/a
51
L'Assurance retraitelassuranceretraite.fr

Management and administration of general social security retirement schemes, including pension calculations, payments, and social action services.

Government Administration 🇫🇷 Paris 8,230 n/a
52
Réseau de Transport d'Électricitérte-france.com

Manages France's electricity grid, connecting territories and industries, developing infrastructure for a decarbonized future, ensuring constant balance and supply.

Utilities 🇫🇷 La Defense Cedex 8,223 2000
53
CACEIScaceis.com

Provides asset servicing for asset managers and institutional investors, including execution, clearing, custody, fund administration, and middle-office outsourcing across continents.

Banking 🇫🇷 Montrouge 8,046 2005
54
Eiffageeiffage.com

Join a close-knit company valuing teamwork, innovation, and individuality to build a human-sized future, welcoming diverse talents to thrive

Construction 🇫🇷 Velizy-Villacoublay 7,684 n/a
55
AG2R LA MONDIALEag2rlamondiale.fr

A major player in personal insurance providing tailored solutions to protect health, income, and assets while promoting solidarity and performance

Insurance 🇫🇷 Paris 7,550 2008
56
GRDFgrdf.fr

Manages Europe's largest gas distribution network, delivering natural and renewable gases to nearly 11 million customers in France, supporting energy transition.

Oil and Gas 🇫🇷 Saint-Denis 7,313 2008
57
Allianz Franceallianz.fr

Offers comprehensive insurance, assistance, and financial services to individuals, professionals, businesses, and communities worldwide, with a strong presence in France.

Insurance 🇫🇷 Puteaux 7,227 1890
58
Groupe VYVgroupe-vyv.fr

First health insurer in France and national operator of care and support services. Socially responsible, building future social protection.

Insurance 🇫🇷 Paris 7,180 2017
59
Malakoff Humanismalakoffhumanis.com

Shares its strategic announcements, key study findings, and various services offered by the group to its followers on its official page.

Insurance 🇫🇷 Paris 7,073 2020
60
RATP Devratpdev.com

Designing, operating, maintaining, and modernizing public transit networks globally, including metros, commuter rail, tramways, and buses for cities and passengers.

Urban Transit Services 🇫🇷 Paris 6,885 2002
61
SAURsaur.com

A global company providing water and essential services, committed to protecting the environment and ensuring quality service for municipalities and cities worldwide

Environmental Services 🇫🇷 Issy-les-Moulineaux 6,850 1933
62
Africa Global Logisticsaglgroup.com

Specializes in international transport, logistics, and supply chain management focused on supporting Africa's transformation and development.

Freight and Package Transportation 🇫🇷 Puteaux 6,706 2023
63
Crédit Agricole Assuranceslinktr.ee

A leading insurance group offering a range of products and services in savings, retirement, health, and property insurance through various distribution channels

Insurance 🇫🇷 Paris 6,361 n/a
64
BNP Paribas - Securities Servicescib.bnpparibas

Provides multi-asset post-trade, asset servicing solutions to financial market participants, corporates, and issuers, with an extensive global custody network.

Financial Services 🇫🇷 Pantin 6,196 n/a
65
Veolia | Franceveolia.fr

Provides specialized services for water management, waste treatment, and energy recovery to help cities and industries preserve, access, and renew essential resources.

Environmental Services 🇫🇷 Aubervilliers 6,110 1853
66
Bpifrancebpifrance.fr

Finances companies from start-up to stock market listing, offering credit to equity. Provides regional financing and investment solutions for business growth and competitiveness.

Banking 🇫🇷 Paris 6,047 2012
67
EFSsante.fr

French public operator manages blood transfusion, collecting, preparing, qualifying, and distributing blood products, ensuring national self-sufficiency for patient care and medical research.

Government Administration 🇫🇷 La Plaine Saint-Denis 5,997 n/a
68
Bouygues Energies & Servicesbouygues-es.fr

Bouygues Energies & Services is a key player in energy and digital transition, focusing on sustainable solutions and workforce development

Environmental Services 🇫🇷 Guyancourt 5,960 n/a
69
Amundiamundi.com

Leading European asset manager providing savings, investment solutions, and IT tools to retail, institutional, and corporate clients with active and passive management.

Financial Services 🇫🇷 Paris 5,705 2010
70
Allianz Tradeallianz-trade.com

Global leader in trade credit insurance, surety, collections, structured trade credit, and political risk with a strong global presence and commitment to employee well-being

Insurance 🇫🇷 Paris La Défense Cedex 5,647 n/a
71
Circetcircet.com

A global provider of telecom and energy infrastructure services, offering integrated solutions worldwide, recognized for agility, flexibility, and turnkey solutions

Telecommunications 🇫🇷 Paris 5,301 1993
72
CNP Assurancescnp.fr

Leading global insurer offering personal risk protection, savings, and pension solutions through multi-partnership models, promoting an inclusive and sustainable society.

Insurance 🇫🇷 Issy-les-Moulineaux 4,828 1959
73
Groupe ADPparisaeroport.fr

Constructs, develops, and operates airport platforms globally, including Paris-Charles de Gaulle and Paris-Orly, managing passenger traffic and enhancing services, retail, and real estate.

Airlines and Aviation 🇫🇷 Roissy Charles De Gaulle Cedex 4,566 1945
74
Colas Railcolasrail.com

Imagining innovative, eco-friendly railway solutions for global well-being and future challenges, collaborating internationally to achieve ambitious projects with passionate experts.

Railroad Equipment Manufacturing 🇫🇷 Puteaux 4,428 2008
75
CERBA HEALTHCAREcerbahealthcare.com

A leading player in medical diagnosis focusing on prevention, disease detection, early diagnosis, and personalized medicine to advance health worldwide

Hospitals and Health Care 🇫🇷 Issy-les-Moulineaux 4,406 n/a
76
DomusVi Francedomusvi.com

Provides elderly care through innovative therapies and social services while focusing on professional employee development to improve quality of life for residents.

Individual and Family Services 🇫🇷 Suresnes 4,373 n/a
77
INDIGO Groupgroup-indigo.com

Global provider of parking, individual mobility, digital solutions, and urban services with strong local presence in nine countries.

Consumer Services 🇫🇷 Puteaux 4,262 2015
78
Caisse nationale des allocations familiales - Cnafcaf.fr

Provide family financial support, promote social equality, assist with rights access, and foster social inclusion across France.

Government Administration 🇫🇷 Paris 4,117 n/a
79
BRED Banque Populairebred.fr

Cooperative bank offers retail, corporate, wealth, international banking, asset management, trading, insurance, and trade financing, serving 1.3 million clients globally.

Banking 🇫🇷 Paris 3,973 1919
80
IDEXidex.fr

Develops, designs, finances, builds, and operates local energy and carbon-free infrastructures for heat and electricity supply to buildings, cities, and industry.

Renewable Energy Power Generation 🇫🇷 Boulogne-Billancourt 3,940 1963
81
Caisse d'Epargne Ile-de-Francecaisse-epargne-ile-de-france.fr

Regional bank focused on local community engagement and future-oriented financial services, encouraging innovative ideas and regional impact.

Banking 🇫🇷 Paris 3,890 1818
82
Mobilize Financial Servicesmobilize-fs.com

Builds innovative financial services for sustainable mobility, offering automotive financing and related services to customers and dealers of various car brands globally.

Banking 🇫🇷 Paris 3,803 n/a
83
Brigade de sapeurs-pompiers de Paris (BSPP)terre.defense.gouv.fr

Specialized military unit providing emergency response, fire protection, and rescue services across Paris and surrounding departments.

Public Safety 🇫🇷 Paris 3,756 1811
84
CNAMtalent-soft.com

Administers national health insurance, develops services for insured, health professionals, employers, and regulates healthcare access and spending for fair care costs.

Government Administration 🇫🇷 Paris 3,739 n/a
85
COLISEEcolisee-group.com

Leading European elderly care provider, fostering quality aging through person-centered care, staff well-being, and environmental responsibility across France, Belgium, Spain, Italy.

Hospitals and Health Care 🇫🇷 Paris 3,733 n/a
86
La Poste Mobilelapostemobile.fr

Provides affordable mobile telecom services with low-cost plans, accessible devices, extensive customer support, and promotes responsible digital usage for all ages.

Telecommunications 🇫🇷 Chaville 3,619 2011
87
Baobab Groupbaobab.com

Provides micro-loans, savings, and daily banking to African micro-entrepreneurs and small businesses, including mobile payments, digital nano loans, and solar products.

Financial Services 🇫🇷 Paris 3,522 2005
88
SFR Businesssfrbusiness.fr

Provides innovative services supporting company growth and digital transformation. Offers high-performance fixed and mobile connectivity and ICT solutions to businesses and public administrations.

Telecommunications 🇫🇷 Paris 3,520 2008
89
ODDO BHFoddo-bhf.com

Advises, manages, and invests financial assets for institutional investors, companies, distribution partners, and large private clients through wealth, asset, and investment banking.

Banking 🇫🇷 Paris 3,520 1849
90
PAPRECpaprec.com

Transforming waste into raw materials, Paprec operates in 10 countries, collecting and processing industrial and municipal waste to create new secondary raw materials

Environmental Services 🇫🇷 Paris 3,373 1994
91
SADEsade-cgth.fr

Specialist in design, construction, and maintenance of networks and related infrastructure, with a focus on sustainable solutions and social responsibility Operating in multiple countries

Environmental Services 🇫🇷 Paris 3,217 1918
92
EDF power solutionsedf-powersolutions.com

Develops, builds, operates low-carbon power plants, flexibility, decarbonisation solutions, and transmission assets, driving electrical systems' global performance.

Renewable Energy Power Generation 🇫🇷 Paris 3,201 1999
93
Swiss Life Franceswisslife.fr

Offers life insurance, private banking, financial management, health, provident, and damage insurance, empowering clients' financial independence.

Insurance 🇫🇷 Puteaux 3,187 1898
94
Crédit Agricole d'Ile-de-Franceca-paris.com

Regional cooperative bank providing banking and insurance services with a strong local presence and commitment to clients and territory.

Banking 🇫🇷 Paris 3,175 n/a
95
Gares & Connexionsgaresetconnexions.sncf

Responsible for developing, improving, redesigning, and reinventing railway stations to meet future challenges, enhancing their functionality and passenger experience.

Rail Transportation 🇫🇷 Paris 3,112 2009
96
Institut Curiecurie.fr

A public utility foundation combining cancer research, innovative healthcare, and multidisciplinary approach to fight cancer through fundamental, translational, and clinical research

Hospitals and Health Care 🇫🇷 Paris 3,105 1909
97
Veolia | Assainissement & Maintenance

Specialized in liquid waste sanitation, building hygiene, industrial maintenance, waste collection, and valorization across France with extensive agency network.

Environmental Services 🇫🇷 3,065 n/a
98
SMABTPsmabtp.fr

Mutual insurance group providing coverage for businesses, professionals, artisans, and their families across property, liability, life, and retirement insurance.

Insurance 🇫🇷 Paris 3,024 1859
99
ACOSSlinkedin.com

A national organization supports employers and entrepreneurs by advising, informing, and streamlining services, ensuring social protection financing, and promoting responsibility, solidarity, and equity

Government Administration 🇫🇷 Montreuil 3,000 n/a
100
Groupe CCFgroupeccf.fr

French banking group provides retail banking services through branches and specialized financing for individuals and businesses across France, including overseas territories.

Banking 🇫🇷 Courbevoie 2,719 1917

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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 Oct 24, 2026.

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