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Critical infrastructure operators headquartered in Italy

Tamtam tracks 431 critical infrastructure operators headquartered in Italy. This list ranks the 100 largest by number of employees on LinkedIn, led by Intesa Sanpaolo, Generali and UniCredit. Their median headcount is 3,261. Half of them were founded in 1982 or later. The most common headquarters are Milan (30), Rome (26) and Turin (5).

🇮🇹 Italy100 companiesUpdated Oct 24, 2026
#CompanyIndustryHeadquarters EmployeesFounded
1
Intesa Sanpaologroup.intesasanpaolo.com

Leading Italian banking group with international presence, focusing on wealth management, advisory, and digital solutions Committed to impact financing and supporting those in need

Banking 🇮🇹 Turin 97,000 2007
2
Generaligenerali.com

Global insurance and financial products market leader, operating in over 50 countries, with €500 billion in assets, and recognized for innovation

Insurance 🇮🇹 Milan 59,226 1831
3
UniCreditunicreditgroup.eu

A pan-European bank focused on empowering communities and stakeholders, delivering for clients, employees, and investors with integrity, ownership, and care

Banking 🇮🇹 Milan 56,878 1870
4
Enieni.com

Integrated energy business, decarbonized products, renewable and retail, bio-refineries, biomethane, low-carbon energy, mobility services.

Oil and Gas 🇮🇹 Rome 32,259 n/a
5
Enel Groupenel.com

Multinational company reshaping the future of energy, a leading integrated electricity operator. Distributes and supplies electricity to millions of end users.

Utilities 🇮🇹 Rome 31,218 1962
6
Ferrovie dello Stato Italiane S.p.A.fsitaliane.it

National rail infrastructure management, passenger transport services, logistics solutions, and urban regeneration projects across Italy.

Facilities Services 🇮🇹 Rome 28,071 n/a
7
TIMgruppotim.it

Provides fixed, mobile, and digital services including Cloud, IoT, and Cybersecurity, building and sharing network infrastructure in Italy and Brazil.

Telecommunications 🇮🇹 Milan 22,417 n/a
8
Gruppo Unipolunipol.it

A major insurance group in Europe offering a wide range of insurance and financial products, with a focus on non-life insurance and integrated offers

Insurance 🇮🇹 Bologna 14,205 n/a
9
Rete Ferroviaria Italianarfi.it

Management and maintenance of railway tracks, stations, installations, ensuring safe circulation and upgrading of Italy's railway network infrastructure.

Facilities Services 🇮🇹 Rome 12,761 n/a
10
BancoBPMbancobpm.it

Offers individuals and businesses modern financial solutions through a wide network and innovative multi-channel approach, leveraging extensive banking experience.

Banking 🇮🇹 Milan 10,883 2017
11
Trenitaliatrenitalia.com

A leading European rail operator providing passenger transportation and logistics services for goods both domestically and within Europe

Rail Transportation 🇮🇹 Rome 10,198 2000
12
BPER Bancagroup.bper.it

A long-standing bank prioritizing growth alongside customers, adapting to changes and expanding through acquisitions to strengthen its position

Banking 🇮🇹 Modena 10,017 1867
13
Fideuram - Intesa Sanpaolo Private Bankingfideuramintesasanpaoloprivatebanking.com

Specializes in managing and distributing personalized financial products and investment solutions for high-net-worth clients through extensive private banker networks.

Banking 🇮🇹 Turin 9,556 n/a
14
Gruppo San Donatogrupposandonato.it

Large European healthcare group integrating hospitals, research, universities, clinics, focusing on human-centered care and international expansion.

Hospitals and Health Care 🇮🇹 Milan 9,474 1957
15
Banca Monte dei Paschi di Sienamps.it

The company, founded in 1472, is the oldest bank globally and a top five banking group in Italy, offering various financial services

Banking 🇮🇹 Siena 8,939 1472
16
BNL BNP Paribasbnl.it

A leading Italian banking group, part of BNP Paribas, offering a wide range of traditional and innovative financial products and services to various market segments

Banking 🇮🇹 Rome 8,662 n/a
17
Alitalia Società Aerea Italiana S.p.A.ita-airways.com

It is the leading Italian airline, transporting millions of passengers with an efficient fleet and offering various service classes and awards.

Airlines and Aviation 🇮🇹 Fiumicino 8,608 n/a
18
ALLEANZA ASSICURAZIONIalleanza.it

Founded in Genoa in 1898, part of the Generali Group, Alleanza Assicurazioni provides insurance, savings, and pension solutions to 2 million clients through a professional sales network

Insurance 🇮🇹 Milan 8,519 1898
19
Banca Mediolanumlinktr.ee

Personalized banking solutions combining innovative digital tools and expert human advisors to meet unique customer needs and expectations.

Banking 🇮🇹 Milano 3 - Basiglio 8,370 1982
20
Crédit Agricole Italiacredit-agricole.it

An international banking group with a solid presence in 46 countries, serving 53 million clients Values include internationality, reliability, proximity, and concreteness Also active on various social media platforms

Banking 🇮🇹 Parma 7,644 2007
21
wind trewindtregroup.it

Provides connections, energy, and insurance services for families and businesses, supporting digital and sustainable transformation with telecommunications, broadband, cybersecurity, and cloud solutions.

Telecommunications 🇮🇹 Milan 7,136 n/a
22
Renferenfe.com

Provides passenger and freight rail services, including maintenance and rolling stock management, focusing on safety, customer orientation, quality, efficiency, and innovation.

Rail Transportation 🇮🇹 6,616 1941
23
E-Distribuzionee-distribuzione.it

The company is the largest in Italy for electricity distribution and measurement, managing a network of over 11 million km nationwide Their mission focuses on delivering excellence, innovation, and value

Utilities 🇮🇹 Rome 5,700 n/a
24
Enel Green Powerenelgreenpower.com

Global leader in renewable energy production with a diverse portfolio of plants on five continents, providing clean energy solutions for businesses worldwide

Renewable Energy Semiconductor Manufacturing 🇮🇹 Rome 5,682 2008
25
Credem Bancacredem.it

Financial institution offering personalized banking services, combining technological innovation with customer needs across Italy through branches, distance banking, and remote solutions.

Banking 🇮🇹 Reggio nell'Emilia 5,495 1910
26
Reale Grouprealegroup.eu

Reale Group provides insurance, banking, real estate, and service solutions, serving over 45 million clients with a strong focus on mutual values and transparency

Individual and Family Services 🇮🇹 Turin 5,357 n/a
27
Terna SpAterna.it

An Italian energy transmission grid operator focused on ensuring the safety, quality, and cost-effectiveness of the electricity system while promoting sustainability and innovation

Utilities 🇮🇹 Rome 5,058 1999
28
A2Agruppoa2a.it

A company in Italy focused on environment, water, and energy, promoting circular economy and sustainable development goals through various services and operations

Utilities 🇮🇹 Milan 5,026 2008
29
ATM - Azienda Trasporti Milanesiatminternational.com

The company is a leading public transport operator in Italy, managing driverless metro networks in Copenhagen and Thessaloniki, emphasizing innovation and sustainability

Urban Transit Services 🇮🇹 Milan 4,974 1931
30
Ospedale San Raffaelehsr.it

A high-specialization center within Gruppo San Donato focusing on medical, scientific research, and university education to deliver excellence in healthcare

Hospitals and Health Care 🇮🇹 Milan 4,965 1971
31
ANAS SpAstradeanas.it

Designing, constructing, and maintaining sustainable and technologically innovative roads in Italy to ensure future mobility, connecting cities and territories for economic and social development

Truck Transportation 🇮🇹 Rome 4,891 1928
32
Fineco Bankfinecobank.com

Leading European FinTech bank offering banking, trading, and investment services through advanced platforms and a large network of financial advisors Expanding presence in the UK and Ireland

Financial Services 🇮🇹 Milan 4,659 1999
33
Autostrade per l'Italiaautostrade.it

Management and modernization of approximately 3,000 km of toll highways across Italy, connecting regions and metropolitan areas efficiently.

Truck Transportation 🇮🇹 Rome 4,418 n/a
34
Banca d'Italiabancaditalia.it

The company is the central bank of Italy, operating within national and European regulations as part of the Eurosystem and European System of Central Banks

Banking 🇮🇹 Rome 4,415 1893
35
Edisonedison.it

Leading energy company with 140 years history, operating in renewable production, gas supply, sustainable mobility, and energy services across Europe.

Utilities 🇮🇹 Milan 4,174 1884
36
Aeronautica Militareaeronautica.difesa.it

The company operates 24/7 for defense of the state, safeguarding institutions and citizens, controlling airspace, and providing excellence in aviation capabilities nationally and internationally

Armed Forces 🇮🇹 Rome 4,062 1923
37
Fastwebfastweb.it

A leading Italian telecommunications operator promoting digital transformation for a connected, inclusive, and sustainable future, investing in ultra-broadband networks and innovative services

Telecommunications 🇮🇹 Milan 4,033 1999
38
INAIL, Istituto Nazionale Assicurazione contro gli Infortuni sul Lavoroinail.it

A public non-profit entity founded in 1883, provides insurance for all workers against work-related accidents, disabilities, health damage, and occupational diseases Additionally, supports injured workers with rehabilitation and reintegration assistance

Government Administration 🇮🇹 Rome 4,031 1883
39
AUSL della Romagnaauslromagna.it

Established on January 1st, 2014, it brings together the four Local Health Authorities of Cesena, Forlì, Ravenna, and Rimini

Hospitals and Health Care 🇮🇹 Ravenna 3,944 2014
40
Gruppo BCC Iccreagruppobcciccrea.it

The company is the largest cooperative banking group in Italy, with a national presence and significant assets It was formed in 2019 and focuses on cooperative banking activities

Banking 🇮🇹 Rome 3,940 2019
41
Gruppo Irengruppoiren.it

Multiutility company in Italy providing electricity, thermal energy, gas, water services, waste management, and technological services with focus on eco-friendly production and high-quality customer service

Utilities 🇮🇹 Reggio Emilia 3,829 1905
42
Fondazione Policlinico Universitario Agostino Gemelli IRCCSpoliclinicogemelli.it

A leading Italian hospital specializing in personalized medicine, innovative biotechnologies, and clinical care for a wide range of specialties, including oncology and rare diseases

Hospitals and Health Care 🇮🇹 Rome 3,810 n/a
43
Gruppo Heragruppohera.it

A municipally owned group providing energy, water, environmental services, and more to citizens and businesses while prioritizing ecological transition and innovation

Utilities 🇮🇹 Bologna 3,786 2002
44
Italgasitalgas.it

A leading Network Tech Company in gas, water, energy efficiency, and IT sectors, providing services to millions of customers in Italy and Greece

Utilities 🇮🇹 Milan 3,661 n/a
45
Allianz Italiaallianz.it

Providing insurance and asset management services in Italy with extensive agent network, bancassurance partnerships, and direct insurance offerings.

Insurance 🇮🇹 Milan 3,571 1890
46
SDA Express Couriersda.it

This company offers a unique partnership for managing logistics and B2B distribution needs.

Freight and Package Transportation 🇮🇹 Rome 3,384 n/a
47
AEROPORTI DI PUGLIA SPAaeroportidipuglia.it

The company manages airports in Puglia, Italy, focusing on infrastructure design, development, and operations for aviation and commercial activities

Aviation and Aerospace Component Manufacturing 🇮🇹 Bari 3,372 1984
48
Snam S.p.A.snam.it

Leading European company specializing in natural gas transport, storage, and regasification services across multiple infrastructures and markets.

Utilities 🇮🇹 Milan 3,337 1941
49
Humanitas Research Hospitalhumanitas.it

Highly specialized hospital with pathology-specific centers, advanced emergency care, innovative outpatient services, and internationally recognized research in immune-related diseases.

Hospitals and Health Care 🇮🇹 Rozzano 3,329 1996
50
Policlinico Umberto Ipoliclinicoumberto1.it

The University Hospital Policlinico Umberto I in Rome is a specialized hospital offering prevention, diagnosis, and treatment services, as well as medical education and research

Hospitals and Health Care 🇮🇹 Rome 3,261 1888
51
Enel Xcorporate.enelx.com

The company offers integrated energy solutions tailored to individuals, governments, and businesses to empower them to manage their energy consumption efficiently

Utilities 🇮🇹 Rome 3,200 2017
52
Banca Generalibancagenerali.com

A private bank specializing in asset protection, family life project planning, investment solutions, and wealth management services with a strong network of financial advisors

Banking 🇮🇹 Milan 3,185 1998
53
ACEAgruppoacea.it

Integrated multi-utility company managing water, energy, waste processing, and infrastructure services across several Italian regions with millions of customers.

Utilities 🇮🇹 Rome 3,049 1909
54
Reale Mutua Assicurazionirealemutua.it

Established in 1828 in Turin, this Italian mutual insurance company with over 7 affiliated companies protects millions of policyholders through a strong market presence

Insurance 🇮🇹 Turin 2,966 1828
55
Grimaldi Groupgrimaldi.napoli.it

A multinational logistics group specializing in maritime transport of cars, rolling cargo, containers, and passengers, founded in 1947 and family-owned

Truck Transportation 🇮🇹 Naples 2,935 1947
56
ITA Airwaysita-airways.com

Flagship Italian airline operating 99 aircraft, focusing on fleet modernization, fuel efficiency, CO₂ reduction, and customer loyalty program.

Airlines and Aviation 🇮🇹 Fiumicino 2,843 n/a
57
Fondazione Don Gnocchidongnocchi.it

The Foundation provides care, rehabilitation, research, and training for individuals with disabilities, complex medical conditions, and elderly individuals, both nationally and internationally

Hospitals and Health Care 🇮🇹 Milan 2,793 1951
58
Azienda sanitaria universitaria integrata del Trentinoasuit.tn.it

A public healthcare provider in Trento, Italy, serving over 500,000 citizens and 9 million tourists annually with hospitals, health centers, and rehabilitation services

Hospitals and Health Care 🇮🇹 Trento 2,756 1995
59
UBI Bancaubibanca.it

A banking institution formed from the merger of BPU Banca and Banca Lombarda, now part of the Intesa Sanpaolo Group

Banking 🇮🇹 Bergamo 2,683 n/a
60
CITTA' DELLA SALUTE E DELLA SCIENZA DI TORINO - SEDE MOLINETTEto.it

The company is a healthcare organization formed from the merger of three hospitals, specializing in orthopedics, traumatology, and children's healthcare in Turin

Hospitals and Health Care 🇮🇹 Sassari 2,652 n/a
61
Banca Sellasella.it

Provides diverse financial and banking products through a widespread branch network in Italy, with subsidiaries in India and Romania.

Banking 🇮🇹 Biella 2,615 1886
62
AZIENDA SANITARIA FIRENZEasf.toscana.it

Hospital and Health Care company based in Florence, Tuscany, Italy, providing healthcare services at the Piazza Santa Maria Nuova location

Hospitals and Health Care 🇮🇹 Florence 2,591 n/a
63
ENAVenav.it

The company manages and controls civilian air traffic in Italy on behalf of the Italian State, under the supervision of government ministries

Airlines and Aviation 🇮🇹 Rome 2,564 n/a
64
Nexi Groupnexigroup.com

A leading European digital payments company offering innovative and secure solutions for individuals, businesses, and financial institutions to make every payment digital

Financial Services 🇮🇹 Milan 2,523 2021
65
Azienda Ospedaliero-Universitaria Careggiaou-careggi.toscana.it

A hospital and university institution offering medical services, education, and research opportunities

Hospitals and Health Care 🇮🇹 Florence 2,501 n/a
66
Findomestic Bancafindomestic.it

Provides responsible credit, savings, and insurance products to families for private goods and services through multiple sales channels.

Financial Services 🇮🇹 Florence 2,476 1984
67
Regione Lazioregione.lazio.it

Administrative region in central Italy, second most populous, borders multiple regions and the Tyrrhenian Sea, includes Vatican City enclave.

Government Administration 🇮🇹 Rome 2,465 1948
68
Fastweb + Vodafonefastwebvodafone.it

Integration of fixed and mobile networks to provide innovative, competitive digital services for families, businesses, and national digital transformation.

Telecommunications 🇮🇹 Milan 2,367 2025
69
UniCredit Services S.C.p.A.unicredit.eu

A trusted enabler offering ICT, operations, real estate, security, and procurement services with a focus on simple, efficient solutions across 11 countries

Banking 🇮🇹 Milan 2,284 n/a
70
Primahelloprima.com

Leading online insurance provider in Italy, offering motor, home, and family products with advanced technology and international expansion.

Insurance 🇮🇹 Milan 2,273 2015
71
Agos Ducatoagoscorporate.it

A leading consumer credit company in Italy, offering a wide range of financial solutions with transparency and customer satisfaction as top priorities

Financial Services 🇮🇹 Milan 2,250 1987
72
Cattolica Assicurazionicattolica.it

Provides insurance protection focused on individuals, families, and businesses, with specialization in agro-food, religious, and associative sectors.

Insurance 🇮🇹 Mogliano Veneto 2,230 1896
73
ASTMastm.it

A global industrial group managing motorway networks, infrastructure development, and transportation technology with a focus on innovation, excellence, and sustainability

Facilities Services 🇮🇹 Tortona 2,230 1928
74
Ospedale Policlinico di Milanopoliclinico.mi.it

The company is a renowned hospital in Milan, excelling in various areas of healthcare, research, and education with a focus on interdisciplinary collaboration

Hospitals and Health Care 🇮🇹 Milan 2,203 n/a
75
Banca Ifisbancaifis.it

Specializing in specialty financing, the company offers credit services, solutions for enterprises, and management of non-performing loan portfolios in Italy

Banking 🇮🇹 Venezia-Mestre 2,175 1983
76
AUSL Romagnaauslromagna.it

An organization based in Romagna region, likely focused on providing services related to education, culture, and social activities for the community

Hospitals and Health Care 🇮🇹 Forli 2,165 n/a
77
ATAC SpAatac.roma.it

Leading public transport operator in Rome managing various collective mobility services, including buses, trams, metros, and parking facilities, with a focus on quality and safety

Urban Transit Services 🇮🇹 Rome 2,115 n/a
78
Open Fiberopenfiber.it

Open Fiber is an Italian company building ultra-fast fiber optic networks to bridge the digital divide and provide innovative digital services for all citizens

Telecommunications 🇮🇹 Rome 2,085 2016
79
Azienda Ospedaliera Universitaria Integrata Veronaaovr.veneto.it

A major hospital in Verona, Italy, part of the Veneto health service, providing integrated university healthcare services and being one of Italy's largest hospitals

Hospitals and Health Care 🇮🇹 Verona 2,060 n/a
80
ASL Barisanita.puglia.it

The healthcare organization in Bari manages hospitals, clinics, pharmacies, vaccination centers, and blood donation facilities to provide services for its citizens

Hospitals and Health Care 🇮🇹 Bari 2,027 2007
81
GNVgnv.it

A leading European shipping company specializing in coastal navigation, cargo, and passenger transport in the Mediterranean Sea on various international and domestic routes

Maritime Transportation 🇮🇹 Genoa 1,989 1993
82
Fondazione I.R.C.C.S. Policlinico San Matteo Paviasanmatteo.org

The Foundation is a leading scientific research and medical care institute in Europe, conducting clinical trials and providing healthcare services since 1400

Hospitals and Health Care 🇮🇹 Pavia 1,982 n/a
83
FCA BANKca-autobank.com

A joint venture specializing in motor financing, offering financial and leasing programs for automotive brands in Europe through dealer networks and private customers

Financial Services 🇮🇹 Turin 1,921 n/a
84
AXA Italiacorporate.axa.it

Global insurance company providing protection, risk management, savings, and asset management through extensive agency and bancassurance networks.

Insurance 🇮🇹 Milan 1,916 n/a
85
Allianz Bank Financial Advisorsallianzbank.it

A leading financial institution in Italy with 50 years of experience, providing tailored investment solutions for private clients with a holistic and integrated approach

Banking 🇮🇹 Milan 1,894 1970
86
Groupama Assicurazionigroupama.it

An international insurance and banking group with over 100 years of history, serving 13 million clients worldwide In Italy, it offers innovative insurance solutions

Insurance 🇮🇹 Rome 1,890 n/a
87
iliadiliad.it

A new player in the Italian mobile telephony market, iliad offers transparent and advantageous services nationwide, targeting those disillusioned with traditional operators

Telecommunications 🇮🇹 Milan 1,855 2017
88
VIVISOLvivisol.com

A homecare service provider focused on improving the quality of life for chronic patients by managing medical therapies at home

Hospitals and Health Care 🇮🇹 Monza 1,836 1989
89
Azienda Ospedale Università Padovaaopd.veneto.it

National relief and high specialization hospital with a focus on teaching, research, and collaboration with healthcare system and University of Padua

Medical Practices 🇮🇹 Padua 1,782 1764
90
Trenordtrenord.it

Provides regional, suburban, airport, and cross-border railway services in Lombardy and nearby regions, connecting cities, lakes, mountains, and airports.

Rail Transportation 🇮🇹 Milan 1,772 2011
91
FERCAMfercam.com

Provide fast, efficient logistics services with advanced technology, focusing on customer success, staff development, and environmental responsibility.

Transportation, Logistics, Supply Chain and Storage 🇮🇹 Bolzano 1,760 1949
92
Azienda Ospedaliera Universitaria Integrata Veronaospedaleuniverona.it

A renowned hospital trust in Veneto, offering excellent specialties, research, assistance, training, and advanced medical procedures like transplants and surgeries

Medical Practices 🇮🇹 Verona 1,700 1520
93
DHL Express Italydhl.com

A global company offers customizable transportation services, expertise in local markets, customs procedures, and sustainable solutions for international businesses' import/export operations

Freight and Package Transportation 🇮🇹 Peschiera Borromeo 1,667 n/a
94
Aeroporti di Romaadr.it

Management and development of Rome Fiumicino and Ciampino airports, recognized for service quality, sustainability, and pandemic response excellence.

Airlines and Aviation 🇮🇹 1,665 1974
95
ASL Roma 1aslroma1.it

A health organization in Rome aimed at promoting and protecting the health of residents through healthcare services based on modern scientific knowledge and quality standards

Hospitals and Health Care 🇮🇹 Rome 1,648 2016
96
IEO Istituto Europeo di Oncologiaieo.it

Research hospital specializing in cancer treatment, integrating lab and clinical research, prevention, diagnosis, treatment, and education to prioritize patient-centered care with innovative methods

Hospitals and Health Care 🇮🇹 Milan 1,645 1994
97
Compass Bancacompass.it

A financial company specializing in consumer credit, with over 60 years of experience, offering various financing solutions with a focus on customer care and transparency

Financial Services 🇮🇹 Milan 1,643 1960
98
Gruppo Cassa Centralecassacentrale.it

A system of cooperative banks working together under a modern banking group, focused on promoting well-being and sustainability in the communities they serve

Banking 🇮🇹 Trento 1,632 2019
99
Azienda Ospedaliero-Universitaria di Parmaao.pr.it

The company is a technology provider based in Italy, serving various industries with their innovative solutions through their website

Hospitals and Health Care 🇮🇹 Parma 1,592 n/a
100
ASL Napoli 2 Nordaslnapoli2nord.it

ASL Napoli 2 Nord serves 32 municipalities in the north of Naples province, providing healthcare services to the population in the region

Hospitals and Health Care 🇮🇹 Frattamaggiore 1,574 2009

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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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