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The 79 largest critical infrastructure operators in Lazio

Tamtam tracks 79 critical infrastructure operators headquartered in Lazio. This list ranks all of them by number of employees on LinkedIn, led by Eni, Enel Group and Ferrovie dello Stato Italiane S.p.A.. Their median headcount is 944. Half of them were founded in 1988 or later. The most common headquarters are Rome (67).

🇮🇹 Lazio79 companiesUpdated Oct 24, 2026
#CompanyIndustryHeadquarters EmployeesFounded
1
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
2
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
3
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
4
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
5
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
6
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
7
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
8
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
9
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
10
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
11
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
12
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
13
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
14
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
15
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
16
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
17
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
18
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
19
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
20
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
21
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
22
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
23
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
24
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
25
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
26
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
27
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
28
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
29
Enel Energiaenel.it

An Italian energy company in the liberalized market, providing electricity and gas from renewable sources Offers customer-centric solutions through technology and digitalization

Utilities 🇮🇹 Rome 1,509 n/a
30
BCC Banca Iccreaiccreabanca.it

Financial services company part of Iccrea Banking Group, specializing in developing and providing products for Italian cooperative banks, focusing institutional clients

Banking 🇮🇹 Rome 1,408 1963
31
HDI ASSICURAZIONIhdiassicurazioni.it

Provides tailored insurance products and services across Italy, leveraging a global network and strong customer-focused approach for protection.

Insurance 🇮🇹 Rome 1,342 n/a
32
Italo Treno – NTVitalotreno.com

First private operator in high-speed rail, offering innovative passenger services with comfortable, technologically advanced surroundings, customized experiences, and competitive pricing.

Rail Transportation 🇮🇹 Rome 1,262 2006
33
ASL Roma 2youtube.com

The company promotes and protects citizens' health by forming alliances in healthcare, social services, and environmental sectors, focusing on innovation and efficiency

Hospitals and Health Care 🇮🇹 Rome 1,182 n/a
34
Aviation Services S.p.A.as-airport.it

Established in 1995 after aviation services liberalization, this company provides ground assistance at major Italian airports, serving over 115,000 flights in 2022

Aviation and Aerospace Component Manufacturing 🇮🇹 Fiumicino 1,052 1995
35
Eniliveenilive.it

Enilive is dedicated to transforming mobility by offering sustainable solutions through a network of service stations across Europe, including alternative energy options and car-sharing vehicles

Retail 🇮🇹 Rome 1,045 n/a
36
Azienda Ospedaliera San Giovanni Addoloratahsangiovanni.roma.it

A historical hospital in Rome offering modern healthcare services, level II emergency care, specialized clinical units, and regional eye bank services

Hospitals and Health Care 🇮🇹 Rome 1,031 1958
37
Sparkletisparkle.com

Global service provider offering capacity, IP, SD-WAN, colocation, IoT connectivity, roaming, voice solutions to national/international Carriers, OTTs, ISPs, Enterprises, with advanced fiber network

Telecommunications 🇮🇹 Rome 1,014 n/a
38
Q8 Italiaq8.it

A leading player in the Italian petroleum market, offering a wide range of high-quality fuel and services through a network of 3,000 service stations nationwide

Oil and Gas 🇮🇹 Rome 958 1984
39
POLICLINICO TOR VERGATAptvonline.it

A hospital and healthcare organization located in Rome, Italy focused on providing medical services and care to the community

Hospitals and Health Care 🇮🇹 Rome 957 2001
40
San Raffaelesanraffaele.it

A leading healthcare organization providing excellence in research, rehabilitation, and patient care with a network of facilities and specialists across Italy

Hospitals and Health Care 🇮🇹 Rome 944 n/a
41
IFO - Istituto Nazionale Tumori Regina Elena - Istituto Dermatologico San Gallicanoifo.it

A public entity managing two internationally renowned cancer and dermatology institutes since 1939, focusing on research, specialized care, and training

Hospitals and Health Care 🇮🇹 Rome 859 1926
42
Babcock

Provides helicopter emergency medical services, offshore support, fixed-wing firefighting, and airport ground equipment management with specialized aviation solutions.

Airlines and Aviation 🇮🇹 Rome 839 2023
43
Fondazione Santa Luciafondazionesantalucia.it

Specializing in neurorehabilitation, the organization provides autonomy and quality of life for adults and children through research and high levels of care

Hospitals and Health Care 🇮🇹 Rome 823 1960
44
IP - italiana petroliip.gruppoapi.com

A leading Italian private company in fuel and mobility services, offering a wide range of products and innovative solutions for sustainable mobility

Oil and Gas 🇮🇹 Rome 807 1933
45
IBL Istituto Bancario del Lavoroiblbanca.it

A company based in Rome offering banking products such as salary-backed loans, personal loans, and deposit accounts through branches across Italy Visit their website for more information

Banking 🇮🇹 Rome 769 1927
46
GSE (Gestore Servizi Energetici)gse.it

Public company supporting renewable energy sources in Italy, providing economic incentives and promoting sustainable, efficient energy use awareness.

Consumer Services 🇮🇹 Rome 756 1999
47
Ama S.p.A.amaroma.it

AMA Spa is a leading Italian company in integrated environmental services, focusing on urban hygiene, waste management, sustainability, and innovation for a sustainable future

Environmental Services 🇮🇹 Rome 722 2000
48
Soginsogin.it

Italian state-owned organization managing nuclear site decontamination, radioactive waste, and decommissioning projects for power plants, research centers, and repositories

Oil and Gas 🇮🇹 Rome 696 1999
49
UPMC in Italiaupmc.it

A leading US academic health system with innovative clinical programs and research collaborations globally, including hospitals and research centers in Italy

Hospitals and Health Care 🇮🇹 Rome 691 n/a
50
ASL Roma 5aslroma5.it

The company is a local health authority in Rome, Italy, promoting and protecting the health of residents in its area

Hospitals and Health Care 🇮🇹 Tivoli 670 1996
51
ASL Roma 6aslroma6.it

The company is a healthcare provider for 21 municipalities, offering essential healthcare services to over 570,000 residents through hospitals, clinics, and social services

Hospitals and Health Care 🇮🇹 Albano Laziale 666 n/a
52
Mercitalia Logisticsfslogistix.com

FS Logistix represents the evolution of logistics in Italy and Europe, succeeding Mercitalia Logistics to lead advancements in the sector.

Transportation, Logistics, Supply Chain and Storage 🇮🇹 Rome 661 2017
53
Ospedale San Carlogvmnet.it

An accredited hospital with emergency services under the National Health Service Visit GVM Care & Research for health initiatives and updates

Hospitals and Health Care 🇮🇹 Rome 621 n/a
54
BCC Romabccroma.it

A cooperative credit bank with 184 branches in Italy, offering financial products, reinvesting in local communities, and engaging in social and environmental activities

Banking 🇮🇹 Rome 590 1954
55
ASLFrosinoneasl.fr.it

The company is a health organization in the Lazio region of Italy, providing integrated healthcare services and promoting research and innovation in healthcare management

Wellness and Fitness Services 🇮🇹 Frosinone 570 n/a
56
Cotral Spacotralspa.it

Manages public transport in the Lazio Region, operating bus services across 376 municipalities and daily transporting over 300,000 passengers, also managing two railway lines.

Truck Transportation 🇮🇹 Rome 514 1899
57
GEKO S.p.A.gekospa.it

The company operates in the energy sector, from development to operation of electric generation plants, renewable energy projects, and eco-friendly technologies worldwide

Utilities 🇮🇹 Rome 500 2000
58
Gruppo Assicurativo Poste Vitapostevita.poste.it

insurance group offering life and damage insurance products through subsidiaries Poste Vita S.p.A. and Poste Assicura S.p.A.

Insurance 🇮🇹 Rome 488 1999
59
d’Amico Shipping Grouplinktr.ee

operates a large fleet of bulk carriers and product/chemical tankers globally, focusing on modern technology, professional staff, and social responsibility.

Maritime Transportation 🇮🇹 Rome 487 1952
60
Allianz Trade in Italiaallianz-trade.com

Global leader in credit insurance, surety bonds, debt collection, and political risk, empowering businesses to make informed decisions and grow securely

Insurance 🇮🇹 Rome 393 n/a
61
TOTALERG SPAtotalerg.it

A company involved in crude oil processing, distribution of petroleum products, managing service stations, and owning shareholdings in refineries

Oil and Gas 🇮🇹 Rome 286 2010
62
Blue Panorama Airlinesblue-panorama.com

An airline based in Rome, Italy offering domestic and international flights to various destinations, specializing in low-cost services and leisure travel experiences

Airlines and Aviation 🇮🇹 Fiumicino 223 1998
63
Istituto per il Credito Sportivocreditosportivo.it

A leader in sports infrastructure financing, working with public and private entities to fund projects and optimize management through special government funds

Banking 🇮🇹 Rome 204 1957
64
BCC Leasingbccleasing.it

Iccrea BancaImpresa offers financial services, leasing, factoring, and consulting to SMEs, including in the agricultural sector, with a focus on growth projects and international business support

Banking 🇮🇹 Rome 201 n/a
65
Banca Finnat Euramericabancafinnat.it

Specializing in investment services for institutional clients, private clients, and businesses, the company has over a century of experience in managing large wealth portfolios

Banking 🇮🇹 Rome 201 1898
66
Mundysmundys.com

A strategic investment holding company in the mobility sector, combining transport infrastructure concessions with digital service platforms to provide advanced mobility services globally

Holding Companies 🇮🇹 Rome 185 n/a
67
Banca UBAE S.p.A.bancaubae.it

A banking corporation founded in 1972 to facilitate economic relations between European and North African/Middle Eastern companies and financial institutions

Banking 🇮🇹 Rome 150 1972
68
AXA MPSaxa-mps.it

An insurance company with a capital of €499M, offering life and property insurance products through partnerships with AXA Group and Investments SpA

Insurance 🇮🇹 Rome 150 n/a
69
Banca Centro Lazio Credito Cooperativobancacentrolazio.net

Banking institution affiliated with the Cassa Centrale Banca Group Offering a range of financial services to clients within the group

Banking 🇮🇹 Palestrina 77 1909
70
Fideuram Vitafideuramvita.it

Established in 2010, the company distributes insurance and social security products through a network of 5,500 private bankers for financial and insurance planning

Insurance 🇮🇹 Rome 63 2010
71
Banca di Scontobancadisconto.it

Specializing in personal credit, including loans with fifth assignment, and distribution of quality financing products through a network of agents and partners

Financial Services 🇮🇹 Rome 59 n/a
72
MetLife in Italiametlife.it

A global insurance group offering savings, employee benefits, and protection policies to over 90 million clients worldwide through various subsidiaries

Insurance 🇮🇹 Rome 52 1994
73
Cialone Tour S.p.A.cialonetour.it

National and European leader in road transportation, offering a range of services including local public transport, coach rental, chauffeur services, and more Committed to safety, comfort, and modernity

Truck Transportation 🇮🇹 Ferentino 44 1895
74
Banca Popolare del Cassinatebancapopolaredelcassinate.it

A cooperative bank established in 1955 to support local economic growth, offering traditional and innovative banking solutions with a focus on sustainability

Banking 🇮🇹 Cassino 43 1961
75
CFFT - Logisticscfft.it

Logistics powerhouse at Civitavecchia's port offering 3PL services, storage, rail-connected terminal, customs services, and specialized in food distribution throughout Italy and Mediterranean region

Warehousing and Storage 🇮🇹 Civitavecchia 41 2006
76
MTS S.p.A.mtsmarkets.com

Electronic platform for trading European government, corporate, and covered bonds with comprehensive pre-trade, trade, and post-trade services.

Capital Markets 🇮🇹 Rome 31 1988
77
REALITOURS - S.R.L. DI REALI MARIOrealitours.it

Specializing in high-end tourism and urban transportation services, providing luxury travel experiences and efficient city transport solutions

Truck Transportation 🇮🇹 Alatri 17 n/a
78
Bank of Communications (Luxembourg) S.A. Rome Branchbankcomm.com

A historic bank in China with global presence, offering a wide range of banking services to corporate and inter-bank customers

Banking 🇮🇹 Rome 11 n/a
79
Kairos Rainbow srlkairosrainbow.it

They offer controlled temperature transport for retail and pharmaceutical sectors, 3-hour express delivery across Italy, 24/7 service, real-time tracking, and cold chain guarantee Contact for more information

Transportation, Logistics, Supply Chain and Storage 🇮🇹 Rome 4 2001

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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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