Tamtam Start free

The 36 largest critical infrastructure operators in Santa Catarina

Tamtam tracks 36 critical infrastructure operators headquartered in Santa Catarina. This list ranks all of them by number of employees on LinkedIn, led by ENGIE Brasil, Unifique and Viacredi. Their median headcount is 975. Half of them were founded in 1984 or later. The most common headquarters are Florianópolis (9), Joinville (7) and Blumenau (5).

🇧🇷 Santa Catarina36 companiesUpdated Oct 24, 2026
#CompanyIndustryHeadquarters EmployeesFounded
1
ENGIE Brasilengie.com.br

Develops businesses in power, natural gas, and energy services, focusing on renewable energy solutions, energy efficiency, and digital technology for sustainable access.

Renewable Energy Power Generation 🇧🇷 Rio de Janeiro 3,019 1998
2
Unifiqueunifique.com.br

Provides communication solutions: internet, TV, landline, mobile, and data center services for businesses, homes, and governments, with advanced technology and customer relationships.

Technology, Information and Internet 🇧🇷 Timbó 2,246 1997
3
Viacrediviacredi.coop.br

Brazil's largest credit cooperative with over 800,000 members and 2,000 employees. Cooperates and transforms lives through financial services.

Financial Services 🇧🇷 Blumenau 2,200 1951
4
Hospital Santa Isabelredesantacatarina.org.br

A network in Brazil managing 19 social entities in Health and Education sectors, providing quality services and care to thousands of people nationwide

Hospitals and Health Care 🇧🇷 Blumenau 2,094 n/a
5
Unimed Litoralunimedlitoral.com.br

A medical cooperative dedicated to providing quality healthcare, promoting wellbeing for members and patients, and upholding excellence in medical services

Hospitals and Health Care 🇧🇷 Itajaí 1,909 1992
6
Cooperativa Central Ailoscentralailos.gupy.io

Ailos Central is a cooperative part of a larger network, dedicated to transforming lives through collaboration, innovative financial solutions, and expanding opportunities

Financial Services 🇧🇷 Blumenau 1,783 2002
7
EQI INVESTIMENTOSeqi.com.br

We are an investment brokerage firm focused on empowering individuals to invest in their choices Open an account and explore opportunities

Financial Services 🇧🇷 Itajaí 1,382 2008
8
ASAASasaas.com

A Brazilian financial services platform that automates processes for freelancers and businesses, improving financial operations and customer relationships

Financial Services 🇧🇷 Joinville 1,369 2010
9
Hospital Regional do Oestehro.org.br

Specializes in high complexity medical services such as neurosurgery, orthopedics, oncology, radiotherapy, and high-risk pregnancy Serving the western region of Santa Catarina

Hospitals and Health Care 🇧🇷 Chapecó 1,345 1978
10
Sicoob MaxiCréditosicoob.com.br

A credit cooperative providing financial solutions and services to its members in various regions, aiming to promote economic and social development through cooperative principles

Financial Services 🇧🇷 Chapecó 1,344 1984
11
Porto Itapoaportoitapoa.com

A leading terminal in Latin America handling container loads with a focus on sustainability, technology, and customer service, strategically located for efficient cargo transportation

Transportation, Logistics, Supply Chain and Storage 🇧🇷 Itapoá 1,262 2011
12
Hospital Nossa Senhora da Conceiçãoredesantacatarina.org.br

Specialized hospital offering high-complexity care in neurosurgery, orthopedics, cardiovascular, oncology, and high-risk obstetrics Also operates as a teaching hospital with residency programs

Hospitals and Health Care 🇧🇷 Tubarão 1,230 n/a
13
Companhia Catarinense de Águas e Saneamento - Casancasan.com.br

A public-private water and sanitation provider in Santa Catarina, Brazil, offering treated water and sewage services to over 27 million residents

Environmental Services 🇧🇷 Florianópolis 1,147 1970
14
Eletrobras CGT Eletrosuleletrobras.com

Engage with our content on @Eletrobras for updates and information

Electric Power Generation 🇧🇷 Florianópolis 1,127 2020
15
Hospital Dona Helenadonahelena.com.br

Leading healthcare center providing personalized care, innovative services, and top-notch medical expertise with international accreditation and ISO certification

Wellness and Fitness Services 🇧🇷 Joinville 1,125 1916
16
Hospital e Maternidade Marieta K. Bornhausenhospitalmarieta.org.br

Specializing in high complexity healthcare services, the organization aims to provide quality, safe, and humanized care while promoting ethical and sustainable practices

Hospitals and Health Care 🇧🇷 Itajaí 1,058 1956
17
Hospital Municipal São Joséjoinville.sc.gov.br

A municipal hospital providing healthcare services to the community, offering medical treatment and care to patients in need

Hospitals and Health Care 🇧🇷 Joinville 1,030 n/a
18
Portonaveportonave.com.br

The Port of Navegantes offers logistic solutions for importers and exporters, ensuring safe and efficient cargo transportation with a focus on sustainability

Maritime Transportation 🇧🇷 Navegantes 975 n/a
19
Hospital Santo Antôniohsa.org.br

A nonprofit hospital providing a wide range of medical services, including oncology and orthopedics, with a focus on quality and affordable healthcare in Santa Catarina

Hospitals and Health Care 🇧🇷 Blumenau 961 1860
20
Unimed Chapecóunimed.coop.br

Promoting and caring for people's health and well-being through ethical, sustainable, and innovative practices, with a focus on customer and community development

Hospitals and Health Care 🇧🇷 Chapecó 935 n/a
21
Ambiental Limpeza Urbana e Saneamento Ltda.ambiental.sc

Specializing in Urban Cleaning and Basic Sanitation services since 1999, offering waste collection, cleaning, and landfill operation with a focus on health and sustainability

Environmental Services 🇧🇷 Joinville 929 1999
22
Mhnet Telecommhnet.com.br

A telecommunications company expanding across multiple states, focusing on providing innovative solutions with quality and customer satisfaction

Telecommunications 🇧🇷 Maravilha 915 2002
23
Hospital São José Criciúmahsjose.com.br

A philanthropic private hospital in Brazil with a focus on providing high complexity medical care, education, and research in various specialties

Hospitals and Health Care 🇧🇷 Criciúma 863 1932
24
Grupo Baía Sulhospitalbaiasul.com.br

A healthcare group in Florianópolis consisting of four institutions offering high complexity medical services with a patient-centered approach and modern technology

Wellness and Fitness Services 🇧🇷 Florianópolis 845 n/a
25
Secretaria da Saúde de Santa Catarinasaude.sc.gov.br

The organization is dedicated to ensuring access to healthcare for the population of Santa Catarina, promoting a quality, efficient, and transparent public health management system

Government Administration 🇧🇷 Florianópolis 821 n/a
26
Grupo Reunidasreunidas.com.br

The company provides bus transportation, cargo transportation, and tourism services in southern Brazil, striving to fulfill its founders' vision

Truck Transportation 🇧🇷 Caçador 799 1950
27
Unimed Joinvilleunimed.coop.br

A socially responsible cooperative focused on preventive and promotional healthcare, with its own hospital and integrated network of medical services

Hospitals and Health Care 🇧🇷 Joinville 782 1971
28
ELETROSUL Centrais Elétricas S.Aeletrosul.gov.br

A company in Brazil focused on generating and transmitting electricity, investing in research for alternative energy sources and diversifying the national energy matrix

Oil and Gas 🇧🇷 Florianópolis 690 1968
29
Auto Viação Catarinensecatarinense.com.br

A transportation organization offering high-quality services, operating a fleet of 350 buses serving over 460,000 passengers monthly on intercity, interstate, and international routes

Ground Passenger Transportation 🇧🇷 Florianópolis 641 n/a
30
Hospital São José de Jaraguá do Sulhsaojose.com

A healthcare association in Jaraguá do Sul, Brazil, providing safe and compassionate medical care, specializing in neurosurgery, orthopedics, oncology, and transplants

Hospitals and Health Care 🇧🇷 Jaraguá do Sul 635 1936
31
Banco Itaú Personnalité

Financial services provider based in Florianópolis, Brazil, offering a range of products and solutions to individuals

Financial Services 🇧🇷 Florianópolis 630 n/a
32
Hospital Santa Catarina de Blumenauunimed.coop.br

A hospital in Blumenau with a history of commitment and pioneering in providing differentiated medical care through advanced technology and highly qualified professionals

Wellness and Fitness Services 🇧🇷 Blumenau 625 1920
33
Imperial Hospital de Caridadehospitaldecaridade.com.br

A medical practice based in Florianópolis, Brazil, providing healthcare services at R MENINO DEUS, 376

Hospitals and Health Care 🇧🇷 Florianópolis 613 1789
34
Hospital Infantil Dr. Jeser Amarante Fariahjaf.org.br

The Hospital Infantil Dr Jeser Amarante Faria provides healthcare services to children and adolescents in Joinville and surrounding areas, focusing on specialized medical care

Hospitals and Health Care 🇧🇷 Joinville 585 2008
35
HEMOSChemosc.org.br

The organization coordinates blood donation, processing, storage, and distribution for therapeutic use, as well as promoting scientific and technological development in the field

Public Health 🇧🇷 Florianópolis 368 1987
36
SANTECHsantechtv.com.br

Provider of services in sales, installation, and maintenance of cable TV, internet, fixed and mobile telephony Authorized agent for NET Claro - #ClaroBrasil

Telecommunications 🇧🇷 Joinville 58 2000

Turn this list into pipeline

Tamtam finds the decision-makers at every company on a list like this one, with verified emails, phone numbers and the buying signals that tell you when to reach out.

Build your own list, free

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.

More company lists in Santa Catarina

The same list elsewhere in Brazil