CASAN

What CASAN does

CASAN (Companhia Catarinense de Águas e Saneamento) is a state-owned mixed-economy water and sanitation utility headquartered in Florianópolis, Brazil, serving 194 municipalities across Santa Catarina and one in Paraná. Founded in 1970, the company provides potable water supply and sewage collection/treatment to 2.911 million people through 855,166 water connections and 387,767 sewage connections, operating an infrastructure footprint that includes 338 water treatment stations, 54 sewage treatment plants, 15,424 km of water distribution network, and 2,117 km of sewage collection network. CASAN maintains a 97.38% water supply index and produced 800,500 m³ of treated water per day in 2024, with 34.95 million m³ of sewage collected over the same period.

The company's technology is grounded in conventional water and sewage treatment processes — including UASB, MBBR, activated sludge, slow filtration, dissolved air flotation, and stabilization lagoons — supported by a regional laboratory network for water quality monitoring and the CIOM integrated operations center for real-time visibility. Customer-facing technology includes the CASAN mobile application (iOS/Android), the e-CASAN self-service portal, online.casan.com.br, 24-hour WhatsApp service, and the FalaBR-integrated ombudsman. CASAN is publicly traded (bvmf:CASN4), majority-owned by the Government of Santa Catarina, with the board including a minority shareholders' representative.

CASAN's revenue model is regulated monthly tariff billing across Residential, Residential Social, Commercial, Micro and Small Commerce, Industrial, and Public Special categories, with sewage charged at 100% of the water tariff and TFDI (fixed infrastructure availability) fees layered on top. Ancillary revenue includes one-time connection, inspection, and meter-testing fees. Tariff adjustments are authorized by state regulators (ARESC, ARIS, AGIR, CISAM-SUL), with a 5.80% increase applied from April 2026. The go-to-market is direct-to-consumer through physical agencies and digital self-service, plus B2G concession, program, and shared-management contracts with municipal governments. Major infrastructure expansion has been financed through international development loans — R$404 million from JICA (2010/2012) and 100 million euros (~R$270 million) from AFD (October 2012) — within a R$1.2 billion 2014-2017 investment plan targeting an increase in sewage coverage from 18% to 45%.

Name

CASAN

Legal name

Companhia Catarinense de Águas e Saneamento

Website

https://casan.com.br

Company type

Public

Founded year

1970

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

CASAN is a state-owned Brazilian water and sanitation utility serving 2.91 million people across 194 municipalities in Santa Catarina and Paraná via 855,166 water connections, 387,767 sewage connections, 338 water treatment stations, and 54 sewage treatment plants.

Ownership category

akta.pro rank

Product category

Water and Sanitation Utilities

NAICS

Water, Sewage and Other Systems (2213), Water Supply and Irrigation Systems (221310), Sewage Treatment Facilities (221320)

SIC

Water Supply (4941), Sanitary Services (4950), Electric, Gas & Sanitary Services (4900)

akta.pro primary industry

Water Supply & Wastewater Utilities Administration (BPAIACAG)

akta.pro secondary industries

Municipal Wastewater Collection (Sewer Networks) (BPALAMAA), Regulatory Compliance Monitoring & Reporting (SDWA/CWA/NPDES, permits, audits) (EUANAJAA)

Keywords

• Water supply services
• Sewage treatment services
• Municipal water utility
• Sanitation infrastructure
• Water distribution networks

Headquarters

HQ city

Florianópolis

HQ country

Brazil

HQ region

Latin America

Offices11 records

Markets served

GTM type

B2C

Offering type

Services

Cost components

Infrastructure, Operations, Personnel, Supply Chain, Technology or R&D, Marketing or Sales

Revenue model

1. Water Supply Tariffs: CASAN charges tariffs for water supply services based on consumption volume (per cubic meter) and customer category. Tariffs are regulated by state agencies (ARESC, ARIS, AGIR, CISAM-SUL) and include fixed infrastructure availability fees (TFDI) plus volumetric charges. The tariff structure includes Residential, Residential Social, Commercial, Micro and Small Commerce, Industrial, and Public categories.
2. Sewage Collection and Treatment Tariffs: Sewage collection and treatment services are charged at 100% of the water tariff value. Additional fees apply for individual sewage solutions (fossa séptica systems) in areas without public sewage networks.
3. Service Fees: Fees for connection services, technical viability consultations, meter testing, property connection inspections, and other ancillary services are published in CASAN's service price table.

Pricing tiers

Go-to-market motion1 record

Distribution channels6 records

Marketing channels8 records

Core offering

CASAN supplies potable water and provides sanitary sewage collection and treatment services across 194 municipalities in Santa Catarina and Paraná. The utility operates 338 water treatment stations and 54 sewage treatment plants, supported by a 15,424 km water distribution network and 2,117 km sewage collection network, and serves 2.911 million people with a 97.38% water-supply coverage index.

Product overview

CASAN operates as a single unified water and sanitation utility providing potable water supply and sanitary sewage collection/treatment services across 194 municipalities in Santa Catarina and Paraná states. The company's product portfolio centers on core water/sewer services delivered through physical infrastructure (338 water treatment stations, 54 sewage treatment stations, 15,424 km water network, 2,117 km sewage network) complemented by digital service channels including the CASAN Mobile App (Android/iOS), e-CASAN online portal, and Online CASAN platform. Supporting services include a laboratory network for water quality monitoring, the Trato pelo Saneamento social program, an Ombudsman service integrated with the federal FalaBR platform, and mobile sewage collection (Esgotamento Sobre Rodas). Customer-facing digital touchpoints span the mobile application, online portal, transparency portal, and investor relations portal. The company also operates internal tools including Domo (intranet) and webmail for employee services.

Differentiator

Problem solved

Functional benefit

Products and services

• Abastecimento de Água (Water Supply) Potable water treatment and distribution services covering 194 municipalities in Santa Catarina and Paraná, serving 2.911 million people with 338 treatment stations and 15,424 km of distribution network.
• Esgotamento Sanitário (Sanitary Sewage) Sewage collection and treatment services with 54 treatment stations and 2,117 km of collector network, processing 34.9 million cubic meters of sewage in 2024.
• Esgotamento Sobre Rodas (Mobile Sewage Collection) Mobile sewage collection service for areas without access to the public sewage network, providing septic tank emptying and treatment.
• Laboratório de Análise de Água (Water Quality Laboratory) Regional laboratory network for physico-chemical and bacteriological monitoring of water and sewage quality across CASAN's service area, generating reports for Sanitary Surveillance and monthly customer bill inserts.
• CASAN Mobile Application Official mobile app for Android and iOS that enables customers to track service protocols, issue second bill copies in PDF, report water outages and leaks, request declarations, configure email billing, view consumption history, and receive supply interruption alerts.
• e-CASAN Portal Online customer service portal for requesting services, accessing second bill copies, checking supply notices, verifying debts, and other commercial transactions.
• Online CASAN Digital services platform for service requests, payment tracking, protocol monitoring, and online customer service.
• Central de Atendimento 115/0800 (Customer Service Hotline) Customer service hotline available 24/7 at 115 (mobile) and 0800 643 0195 (toll-free) for service requests, complaints, and emergency reporting, plus 24-hour WhatsApp at 0800 048 0115.

Quantifiable outcome

• 2.911 million people served with water supply (2024)
• +6 more outcomes

Named customers8 records

Segments5 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration16 records

Feature3 records

Partnerships

Five partnerships are on record, tiered core.

• Consórcio IberêcoreStrategic or Co-development PartnerPartnership for riparian forest (mata ciliar) recovery project in Western Santa Catarina region. Contributes to environmental preservation and water source protection.
• ARESC - Agência de Regulação de Serviços Públicos de Santa CatarinacoreOthersState regulatory agency overseeing CASAN's services in Santa Catarina. Sets tariff rates and service standards through Resolution nº 389/2026.
• ARIS - Agência Reguladora Intermunicipal de SaneamentocoreOthersIntermunicipal sanitation regulatory agency. Authorizes tariff adjustments through Deliberação nº 003/2026 and nº 021/2025.
• AGIR - Agência Intermunicipal de Regulação Serviços PúblicoscoreOthersIntermunicipal public services regulatory agency for Médio Vale do Itajaí region. Authorized 5.80% tariff adjustment via Decisão nº 321.
• CISAM SUL - Consórcio Intermunicipal de Saneamento AmbientalcoreOthersIntermunicipal environmental sanitation consortium. Authorized tariff structure per Resolução CREFISBA nº 07/2026.

Scale indicators12 records

Recent moves7 records

Expansion highlights5 records

Market position

Strengths4 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/casansc
• YouTubeyoutube.com/@casansc_
• Facebookfacebook.com/casansc
• Instagraminstagram.com/casansc
• LinkedInlinkedin.com/company/casan

Compliance12 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles14 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about CASAN