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The 27 largest critical infrastructure operators in Porto Alegre

Tamtam tracks 27 critical infrastructure operators headquartered in Porto Alegre. This list ranks all of them by number of employees on LinkedIn, led by Sicredi, Hospital Moinhos de Vento and HCPA - Hospital de Clínicas de Porto Alegre. Their median headcount is 689. Half of them were founded in 1971 or later.

🇧🇷 Porto Alegre27 companiesUpdated Nov 11, 2026

The critical infrastructure operators in Porto Alegre are predominantly hospitals and healthcare providers. Companies like Hospital Moinhos de Vento, HCPA - Hospital de Clínicas de Porto Alegre, Hospital São Lucas da PUCRS, Hospital Mãe de Deus, Instituto de Cardiologia, Grupo Hospitalar Conceição, Hospital Santa Casa de Misericórdia, Hospital Ernesto Dornelles, and Associação Hospitalar Vila Nova all operate in this sector, providing a wide range of medical services.

Beyond healthcare, Sicredi is a large financial services cooperative. Grupo CEEE operates in utilities, while Grupo Ouro e Prata focuses on ground passenger transportation. EPTC - Empresa Pública de Transporte e Circulação S.A. handles government administration related to transport, and Secretaria de Estado de Segurança Pública do RS is active in public safety. Most of these organizations are well-established, with many founded mid-20th century.

#CompanyIndustryHeadquarters EmployeesFounded
1
Sicredisicredi.com.br

A collaborative organization in Brazil, prioritizing affordable financial solutions and social impact, valuing employee well-being and community development Join us at Sicredi!

Financial Services 🇧🇷 Porto Alegre 36,944 n/a
2
Hospital Moinhos de Ventohospitalmoinhos.org.br

Leading hospital in the southern region certified by Joint Commission International Located in Porto Alegre, RS Recruiting healthcare professionals Apply online

Hospitals and Health Care 🇧🇷 Porto Alegre 5,487 1927
3
HCPA - Hospital de Clínicas de Porto Alegreedu.br

A semi-independent federal agency providing high-quality care, research, and academic training, aiming for international recognition in healthcare standards

Hospitals and Health Care 🇧🇷 Porto Alegre 4,581 1971
4
Hospital São Lucas da PUCRShospitalsaolucas.pucrs.br

A healthcare institution providing comprehensive emergency to post-discharge care, renowned for quality assistance, excellent education, cutting-edge research, and international relevance in healthcare solutions

Hospitals 🇧🇷 Porto Alegre 2,985 1976
5
Hospital Mãe de Deusmaededeus.com.br

A hospital system founded in 1979 reinvesting finances in technology, professional development, social projects Leading accredited healthcare institution in Rio Grande do Sul

Hospitals and Health Care 🇧🇷 Porto Alegre 2,560 1979
6
Instituto de Cardiologiacardiologia.org.br

A leading institution in cardiology, providing medical care, education, research, and advancing knowledge in the field with a specialized multidisciplinary team

Hospitals and Health Care 🇧🇷 Porto Alegre 2,424 1966
7
Grupo Hospitalar Conceiçãoghc.com.br

Leading provider of healthcare services for the Sistema Único de Saúde (SUS) in southern Brazil, offering a range of medical treatments and procedures to the community

Hospitals and Health Care 🇧🇷 Porto Alegre 2,347 n/a
8
Hospital Santa Casa de Misericórdia

Medical practice located in Porto Alegre, Brazil, offering services at Hospital Santa Casa de Misericórdia

Medical Practices 🇧🇷 Porto Alegre 1,549 n/a
9
Hospital Ernesto Dornelleshed.com.br

A private institution with 312 beds and 33 medical specialties, known for pioneering medical advancements and providing comprehensive healthcare services in the southern region of Brazil

Hospitals and Health Care 🇧🇷 Porto Alegre 1,493 1962
10
Associação Hospitalar Vila Novasdsvilanova.com.br

A non-profit entity founded in 1965 to provide healthcare, social, cultural, and scientific assistance to the population in the southern region of Porto Alegre

Hospitals and Health Care 🇧🇷 Porto Alegre 1,395 n/a
11
Grupo CEEEceee.com.br

A mixed economy company involved in electricity generation, transmission, and distribution with multiple subsidiaries and significant presence in the state of Rio Grande do Sul

Utilities 🇧🇷 Porto Alegre 1,309 1943
12
Grupo Hospitalar Conceiçãoghc.com.br

Leading provider of healthcare services in Porto Alegre, offering universal and free access to medical care through a network of hospitals and community health centers

Hospitals and Health Care 🇧🇷 Porto Alegre 1,227 n/a
13
Secretaria de Estado de Segurança Pública do RSssp.rs.gov.br

Provider of essential services to the population, with a Communication Department directly linked to the Secretary's Office and collaboration with other public security departments

Public Safety 🇧🇷 Porto Alegre 847 1958

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14
EPTC - Empresa Pública de Transporte e Circulação S.A.eptc.com.br

Regulates and oversees transit and transport activities in Porto Alegre, established by law in 1998

Government Administration 🇧🇷 Porto Alegre 689 n/a
15
Grupo Ouro e Pratagrupoouroeprata.com

A transportation group providing quality and innovative travel experiences through hydro and road transport services, prioritizing safety, customer satisfaction, and environmental responsibility

Ground Passenger Transportation 🇧🇷 Porto Alegre 558 1939
16
IBSAÚDEibsaude.org.br

A nonprofit organization dedicated to strengthening and consolidating the Brazilian Unified Health System (SUS) as a Social Health Organization (OS)

Facilities Services 🇧🇷 Porto Alegre 544 2005
17
BR.Digital Telecom AS14840br.digital

Specializing in fiber optic transmission, the company offers last mile and long-distance services with high capacity and low latency across Brazil

Telecommunications 🇧🇷 Porto Alegre 525 n/a
18
CCG Saúdeccgsaude.com.br

Offering the best services in group medicine, the company specializes in outpatient, hospital, and dental care plans, focusing on preventive health through the Saúde em Dia program

Wellness and Fitness Services 🇧🇷 Porto Alegre 515 1991
19
Sociedade Sulina Hospital Divina Providenciadivinaprovidencia.org.br

Follow the official page to stay updated on all information regarding the Divine Providence Health Network Visit the provided link

Hospitals and Health Care 🇧🇷 Porto Alegre 506 1956
20
Planalto Transportes LTDAplanalto.com.br

A transportation company based in Rio Grande do Sul specializing in passenger and parcel transport with a focus on safety, comfort, and quality service Transporting 45 million passengers annually

Truck Transportation 🇧🇷 Porto Alegre 506 1948
21
Sabemisabemi.com.br

With 50 years in the market, the company specializes in insurance, pension, and consigned credit, focusing on serving military and public sector employees nationwide

Financial Services 🇧🇷 Porto Alegre 495 1973
22
Sebratelsebratel.com.br

Delivering excellence in telecom solutions and corporate connectivity, seeking excellence in processes, people, relationships, and delivery Welcoming talents to join our team

Telecommunications 🇧🇷 Porto Alegre 445 2009
23
Unesul Transportesunesul.com.br

A transportation company with over 50 years of experience, operating a fleet of 415 buses covering 222 lines across multiple states and countries

Truck Transportation 🇧🇷 Porto Alegre 436 1964
24
Companhia Carris Porto-Alegrensecarris.com.br

A historic transportation provider, operating buses and electric trams since 1872, recognized nationally for its quality service and public management

Ground Passenger Transportation 🇧🇷 Porto Alegre 397 1872
25
AES Sulaessul.com.br

They distribute electricity to around four million people in 118 municipalities in the Central Region of Rio Grande do Sul, focusing on reliable and sustainable energy supply

Utilities 🇧🇷 Porto Alegre 382 1997
26
Secretaria Municipal de Saúde de Porto Alegrewww2.portoalegre.rs.gov.br

The organization focuses on providing comprehensive healthcare services, coordinating a network of healthcare facilities, and promoting public health initiatives in vulnerable populations

Wellness and Fitness Services 🇧🇷 Porto Alegre 333 1980
27
Unicred Porto Alegreunicred.com.br

A cooperative financial institution focused on providing personalized services, distributing profits to members, and offering competitive investment returns and low fees

Financial Services 🇧🇷 Porto Alegre 322 1990

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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.

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