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Critical infrastructure operators headquartered in Barcelona

Tamtam tracks 50 critical infrastructure operators headquartered in Barcelona. This list ranks all of them by number of employees on LinkedIn, led by Institut Català de la Salut, Hospital Clínic de Barcelona and Hospital Universitari Vall d'Hebron. Their median headcount is 568. Half of them were founded in 1983 or later.

🇪🇸 Barcelona50 companiesUpdated Oct 24, 2026
#CompanyIndustryHeadquarters EmployeesFounded
1
Institut Català de la Salutics.gencat.cat

The company provides healthcare services from pregnancy to old age, with a wide territorial coverage and a strong emphasis on education, research, and innovation

Hospitals and Health Care 🇪🇸 Barcelona 7,936 n/a
2
Hospital Clínic de Barcelonaclinicbarcelona.org

A leading public university hospital in Spain, offering quality healthcare, cutting-edge research, and professional training with a focus on humanized medicine

Hospitals and Health Care 🇪🇸 Barcelona 6,159 1906
3
Hospital Universitari Vall d'Hebronvallhebron.com

A leading hospital complex in Catalonia with four large centers offering a wide range of medical and surgical specialties

Hospitals and Health Care 🇪🇸 Barcelona 4,361 1955
4
Gas Natural Fenosagasnaturalfenosa.com

Leading multinational company operating in gas and electricity sectors, serving over 20 million customers across 23 countries worldwide.

Oil and Gas 🇪🇸 Barcelona 3,989 n/a
5
Hospital del Marhospitaldelmar.cat

Modern general hospital treating medium and high complexity pathologies, affiliated with a university and emphasizing research, located in a diverse, multicultural area

Hospitals and Health Care 🇪🇸 Barcelona 3,654 1983
6
Transports Metropolitans de Barcelona (TMB)tmb.cat

The company is the main public transport operator in Catalonia, providing bus and metro networks, as well as leisure transport services

Utilities 🇪🇸 Barcelona 3,050 1979
7
Hospital de la Santa Creu i Sant Pausantpau.cat

A centuries-old highly complex hospital in Spain, primarily serving Barcelona and Catalonia, with a prominent national and international reputation

Hospitals and Health Care 🇪🇸 Barcelona 2,826 1401
8
Cellnex Telecomcellnex.com

The company is a leading provider of wireless telecommunications and broadcasting infrastructure across Europe, with a focus on shared-use services

Telecommunications 🇪🇸 Barcelona 2,542 n/a
9
Banco Mediolanumbancomediolanum.es

This company offers personalized financial services through Family Bankers and Multichannel Banking, part of a banking group with millions of clients across Europe

Banking 🇪🇸 Barcelona 2,324 1983
10
Veolia | Españaveolia.es

Leading environmental services provider specialized in decarbonization and circular economy through optimized management of energy water and waste for cities and industries

Environmental Services 🇪🇸 Barcelona 2,272 n/a
11
ASEPEYOasepeyo.es

Leader in accident & occupational disease insurance with services benefiting society, companies, workers & employees Protecting 2 million workers & 272,000+ companies nationwide

Hospitals and Health Care 🇪🇸 Barcelona 2,119 1915
12
Mutua Universalmutuauniversal.net

Voluntary association providing healthcare and economic benefits to workers, collaborating with Social Security across all autonomous communities.

Hospitals and Health Care 🇪🇸 Barcelona 2,065 1907
13
Voloteavolotea.com

Fast-growing European airline serving medium-sized cities, operating numerous routes and flights while prioritizing sustainable aviation practices and customer satisfaction

Airlines and Aviation 🇪🇸 Barcelona 1,889 2011
14
MC MUTUALmc-mutual.com

Leader in accident insurance with over a century of experience, protecting 12 million workers, offering prevention services, and part of a nationwide mutual group

Hospitals and Health Care 🇪🇸 Barcelona 1,110 2006
15
AGBARveolia.es

A company with over 150 years of experience offering innovative solutions for sustainable water and environmental management, striving to improve quality of life

Environmental Services 🇪🇸 Barcelona 1,055 n/a
16
Centro Medico Teknonteknon.quironsalud.com

Leading private hospital in Spain providing high-quality medical care in a personalized environment with cutting-edge technology, focused on patient safety and satisfaction

Hospitals and Health Care 🇪🇸 Barcelona 948 1994
17
FIATC Segurosfiatc.es

A company specializing in insurance, health, and services for the elderly, aiming to improve the quality of life through personalized and professional care

Insurance 🇪🇸 Barcelona 935 1930
18
Àrea Metropolitana de Barcelona (AMB)amb.cat

Public administration managing metropolitan territory of Barcelona, encompassing 36 municipalities and serving over 3.2 million residents.

Government Administration 🇪🇸 Barcelona 725 n/a
19
Clínica Sagrada Famíliaclinicasagradafamilia.com

A medical clinic in Barcelona founded in 1970 by a religious congregation, offering a wide range of medical specialties and advanced technology

Hospitals and Health Care 🇪🇸 Barcelona 698 1970
20
Clínica Corachancorachan.com

Passionate healthcare professionals offering top-notch medical care since 1921 Striving for excellence with modern facilities and a multidisciplinary team focusing on patient-centered care

Wellness and Fitness Services 🇪🇸 Barcelona 650 1921
21
Ferrocarrils de la Generalitat de Catalunyafgc.cat

Public company managing regional rail and metro services in Catalonia, focusing on sustainable and efficient transportation solutions.

Rail Transportation 🇪🇸 Barcelona 630 n/a
22
CaixaBank Payments & Consumercaixabankpc.com

Providing innovative payment and financing solutions for businesses and individuals to achieve their goals, always focused on future success

Banking 🇪🇸 Barcelona 601 n/a
23
LABORATORIO ECHEVARNElaboratorioechevarne.com

A part of Grupo Echevarne, this company focuses on providing innovative technology and services in healthcare, veterinary, and industry sectors

Medical and Diagnostic Laboratories 🇪🇸 Barcelona 588 1958
24
Aigües de Barcelonaaiguesdebarcelona.cat

A public-private company manages the complete water cycle for nearly 3 million people in the Barcelona metropolitan area, focusing on sustainability and customer service

Environmental Services 🇪🇸 Barcelona 577 1867
25
Banc de Sang i Teixitsbancsang.net

A public company in Catalonia providing blood, tissues, and breast milk to patients, while also leading in research for therapies

Public Health 🇪🇸 Barcelona 568 n/a
26
Grupo Caja de Ingenieroscaixaenginyers.com

A cooperative group providing sustainable value in financial, professional, and personal areas through long-term, ethical relationships and commitment to society

Financial Services 🇪🇸 Barcelona 555 1967
27
Parc Sanitari Pere Virgiliperevirgili.cat

Public healthcare organization managing intermediate care hospital services and primary care in Barcelona, with a focus on teaching, research, and multidisciplinary approach

Hospitals and Health Care 🇪🇸 Barcelona 418 1999
28
Zurich in Spainzurich.es

Insurance company with over 2,000 employees in Spain, part of a global network serving customers in 170+ countries, recognized for employee satisfaction and benefits

Insurance 🇪🇸 Barcelona 385 1884
29
GVC Gaescogvcgaesco.es

A leading independent financial group in Spain offering comprehensive financial services, wealth management, securities brokerage, corporate finance, market analysis, and insurance services

Financial Services 🇪🇸 Barcelona 295 1971
30
LEVEL Airlinesflylevel.com

International Airlines Group's low cost airline brand operating A330 aircraft between Barcelona and various international destinations, offering stylish flying at affordable prices

Airlines and Aviation 🇪🇸 Barcelona 285 2017
31
Agència Catalana de l'Aiguaaca.gencat.cat

A public company in Catalunya responsible for water planning, management, sanitation, and conservation to ensure water availability and quality

Government Administration 🇪🇸 Barcelona 284 2000
32
Comercia Global Paymentscomerciaglobalpayments.com

A joint venture between a Spanish retail banking leader and a global payments company, focused on providing high-quality payment services worldwide

Financial Services 🇪🇸 Barcelona 278 2010
33
Agència de Salut Pública de Barcelona - ASPBaspb.cat

The Agency of Public Health in Barcelona manages public health services for the city, ensuring the health of residents and visitors through data analysis, policy development, and service delivery

Wellness and Fitness Services 🇪🇸 Barcelona 213 2003
34
Hospital HM Nenstrc.es

A pioneering pediatric hospital in Barcelona offering a wide range of medical services for children, including outpatient, surgical, and orthodontic care

Wellness and Fitness Services 🇪🇸 Barcelona 210 1886
35
ICF - Institut Català de Financesicf.cat

Public financial entity supporting Catalan companies and entities for green transition, reindustrialization, and growth, with membership in the European Association of Public Banks

Banking 🇪🇸 Barcelona 182 1985
36
Sateliotsateliot.space

Revolutionizing IoT connectivity with a LEO satellite constellation based on 5G standard, enabling global connectivity for commercial cellular IoT devices

Telecommunications 🇪🇸 Barcelona 158 2018
37
imaginimagin.com

An open community providing financial products, innovation, simplicity, transparency, and social responsibility to empower imaginers for financial freedom and sustainability

Financial Services 🇪🇸 Barcelona 138 n/a
38
Caixabank Advanced Business Analyticscaixabank.com

Integrating business intelligence and advanced analytics to transform data into value for customers, offering an omnichannel, hyper-personalized experience through AI and machine learning.

Technology, Information and Internet 🇪🇸 Barcelona 124 2017
39
CaixaBank Consumer Financecaixabankpc.com

A consumer finance company specializing in financing individuals and businesses through multiple channels, partnerships with retailers, dealers, and international banking partners

Financial Services 🇪🇸 Barcelona 117 1998
40
CAPSBEcapsbe.cat

A public entity managing three Primary Care Teams in Barcelona, providing health services to residents in different areas, focusing on professionalism, teamwork, innovation, and patient care

Wellness and Fitness Services 🇪🇸 Barcelona 117 n/a
41
EAP Sardenya SPLeapsardenya.cat

Healthcare institution in Barcelona serving 20,000 residents, part of the public healthcare system in Catalonia Provides training for medical specialists and collaborates with universities

Wellness and Fitness Services 🇪🇸 Barcelona 74 2000
42
APS Pamemajuntament.barcelona.cat

Public-private partnership providing healthcare coverage to 12,000 municipal employees and managing primary care for 92,000 individuals in Barcelona through multiple healthcare centers

Wellness and Fitness Services 🇪🇸 Barcelona 64 1950
43
EAP Dreta de l'Eixample - CAP Roger de Floreapdretaeixample.cat

A provider of Primary Care Services within the Public Health System of Catalonia, formed by healthcare professionals working under CatSalut supervision

Wellness and Fitness Services 🇪🇸 Barcelona 47 2003
44
Bankpime

A banking group specializing in serving small and medium-sized enterprises, offering personalized financial services and actively managing investment funds

Banking 🇪🇸 Barcelona 27 1978
45
Ambulàncies Catalunya scclambulanciescatalunya.com

A cooperative with over 30 years of experience in healthcare transportation, focusing on efficient service with cutting-edge technology and quality care for user satisfaction

Wellness and Fitness Services 🇪🇸 Barcelona 23 1981
46
CAP Les Hortescapleshortes.cat

The company focuses on promoting health communication and accessibility through online platforms like a website and social media to connect with users

Wellness and Fitness Services 🇪🇸 Barcelona 22 2001
47
China Construction Bank (Europe) S.A. Barcelona Branchen.ccb.com

A global bank providing corporate banking, trade finance, and treasury operations with overseas branches and subsidiaries in 30 countries

Banking 🇪🇸 Barcelona 20 2015
48
CaixaBank Paymentscaixabankpay.com

CaixaBank Payments innovates in payment solutions, offering mobile payment, P2P transactions, wearables, and more to revolutionize the payment market

Financial Services 🇪🇸 Barcelona 17 2012
49
Grupo Contenosagrupocontenosa.com

A consignee company within the maritime logistics sector, part of a group specializing in various shipping services worldwide for over 30 years

Transportation, Logistics, Supply Chain and Storage 🇪🇸 Barcelona 12 1978
50
Nissin Transport Spain | Supply Chain Logistics Providernissinspain.com

A transport and logistics company with over 25 years of experience, offering efficient international shipments, tailored solutions, secure warehousing, and customs management

Transportation, Logistics, Supply Chain and Storage 🇪🇸 Barcelona 3 n/a

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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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