What GS Inima Brasil does

GS Inima Brasil is a private Brazilian water and sewage treatment utility group operating under municipal and industrial concessions across four Brazilian states — São Paulo, Minas Gerais, Alagoas, and Rio Grande do Sul. The company is controlled by GS Inima Environment (Spain), which in turn is owned by GS E&C, the engineering arm of the fifth-largest South Korean conglomerate, following a 2012 acquisition from Spain's OHL group. Its Brazilian operations began in 1995 with the Ambient concession in Ribeirão Preto — the first partial sanitation concession in Brazil — and have grown via organic concession wins (SANAMA, CAEPA, COMASA, SANEOURO, SAMAR, SANEL) and strategic industrial acquisitions in 2019 (Aquapolo, Triunfo, Jeceaba).

The technology stack centers on conventional and advanced water treatment infrastructure: 11 water treatment plants (ETAs) with combined capacity of 1,705 L/s and 14 sewage treatment plants (ETEs) at 3,964 L/s in Brazil, plus Aquapolo — Latin America's largest water reuse plant at 650 L/s. The portfolio includes "firsts" in Brazil: biogas energy recovery from sewage sludge, ultrafiltration membrane domestic sewage treatment, MBBR biofilm (CFIC®) technology, solar sludge drying, and solar photovoltaic generation at ETEs. A 922-panel ground-mounted solar plant in Araçatuba generates 71,000+ kWh/month.

Revenue is generated through regulated municipal tariffs charged to residential, commercial, industrial, and public customers under long-term concession contracts (e.g., the 10-year Araçatuba concession acquired in 2016); through industrial managed-services contracts with petrochemical majors at the Triunfo complex (Arlanxeo, Braskem, Innova, Oxiteno, White Martins); through O&M services to public and private operators; and through infrastructure construction for concession wins. Operations are concentrated in Araçatuba (serving 213,929 people) but span a multi-state footprint, with the largest sanitation concession investment exceeding R$250 million over 10 years in Araçatuba alone. Multi-channel customer service — call center, WhatsApp, in-person, and online portal — handled 130,000+ customer interactions in 2025, producing an 87% satisfaction score.

Name

GS Inima Brasil

Legal name

GS Inima Brasil

Website

https://samar.eco.br

Company type

Private

Founded year

1995

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

GS Inima Brasil is a private Brazilian water and sewage utility group operating regulated municipal concessions across São Paulo, Minas Gerais, Alagoas, and Rio Grande do Sul, plus industrial water-treatment services for petrochemical clients, serving hundreds of thousands of residential and enterprise customers.

Ownership category

akta.pro rank

Headquarters

HQ city

Araçatuba

HQ country

Brazil

HQ region

Latin America

Offices14 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Public Sanitation Concession Services: Long-term concession contracts with municipalities for water supply and sewage treatment services. Revenue generated through tariffs charged to residential, commercial, industrial, and public customers for water and sewage services.
2. Industrial Water Treatment: Customized water and effluent treatment solutions for industrial clients including clarifed water, demineralized water, and potable water production. Operates in petrochemical complexes and industrial facilities.
3. Operation and Maintenance Services: Operation and maintenance of water and sewage systems for public and private operators including pre-operation services, preventive and predictive maintenance.
4. Infrastructure Construction: Construction and implementation of sewage collection, diversion and treatment systems, and water distribution networks for public concession contracts.

Pricing tiers

Go-to-market motion1 record

Distribution channels6 records

Marketing channels9 records

Core offering

GS Inima Brasil provides water supply and sewage treatment services through long-term municipal concession contracts across multiple Brazilian states. The company operates 11 water treatment plants (ETAs) with 1,705 L/s capacity and 14 sewage treatment plants (ETEs) with 3,964 L/s capacity in Brazil, and also delivers customized industrial water treatment and water reuse solutions to clients such as petrochemical complexes.

Differentiator

Problem solved

Functional benefit

Brands

• Hidrosfera: GS Inima Brasil's corporate sustainability strategy and reporting framework, aligned with GRI (Global Reporting Initiative) guidelines. Produces annual sustainability reports.

Products and services

• Water Supply Services (Abastecimento de Água) Full water supply and distribution services provided to residential, commercial, industrial, and public customers under municipal concession contracts, including operation of 11 water treatment plants (ETAs) in Brazil with total capacity of 1,705 L/s.

Quantifiable outcome

• 87% customer satisfaction based on 2025 survey
• +6 more outcomes

Named customers8 records

Segments4 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature10 records

Partnerships

Ten partnerships are on record, tiered core and minor.

• Corpo de Bombeiros de AraçatubacoreStrategic or Co-development Partner · 1 January 2024Partnership for installation of fire hydrants throughout Araçatuba. GS Inima SAMAR installs hydrants in strategic locations to improve fire response capability, with three already installed in 2024 and two more planned.
• Fundo Social de Solidariedade de AraçatubacoreGTM or Marketing Partner · 1 January 2022Partnership for social programs including plumber training courses for women and clothing donation drives. CSAM assists with registrations through CRAS centers serving low-income populations.
• Brava EngenhariacoreStrategic or Co-development Partner · 1 January 2022Engineering firm commissioned to conduct 'Segurança Hídrica no Ribeirão Baguaçu' study analyzing water security challenges in Araçatuba's main water source.
• Instituto Democracia e Sustentabilidade (IDS)coreStrategic or Co-development Partner · 1 January 2022Research institute responsible for presenting and translating the Baguaçu water security study results to society, coordinating discussions on necessary recovery actions.
• CASAL (Companhia de Saneamento de Alagoas)minorStrategic or Co-development Partner · 1 January 2019Partnership to implement and operate sewage treatment system serving high areas of Maceió, Alagoas.
• Comitê de Fomento Industrial do Polo do Rio Grande do Sul (COFIP-RS)coreStrategic or Co-development Partner · 1 January 2019GS Inima Industrial Triunfo participates in COFIP-RS socioenvironmental programs alongside other petrochemical complex companies including Arlanxeo, Braskem, Innova, Oxiteno, and White Martins.
• GS Inima Industrial Jeceaba (MG)minorStrategic or Co-development Partner · 1 January 2019Industrial water treatment company acquired in 2019 as part of expansion into industrial water and water reuse sector.
• Araçatuba Municipality (DAEA)coreStrategic or Co-development Partner · 1 January 2016Municipal concession agreement for water and sewage services in Araçatuba. GS Inima Samar acquired SAMAR concession in 2016 and operates under regulatory oversight of DAEA (Agência Reguladora e Fiscalizadora). 10-year concession with significant investments in infrastructure.
• SABESP (Companhia de Saneamento Básico do Estado de São Paulo)coreStrategic or Co-development Partner · 1 January 2008First private company partnership with SABESP in SESAMM concession (Mogi Mirim). Also constructed ETEs for SABESP in Campos do Jordão and São José dos Campos through SANEVAP and Araucária consortia.
• Municipalities of Luiz Antônio, Paraibuna, Santa Rita do Passa Quatro, and Luiz AntoniocoreStrategic or Co-development PartnerFull concession contracts for water and sewage services in São Paulo municipalities through COMASA, CAEPA, and SANEL operations.

Scale indicators18 records

Recent moves16 records

Expansion highlights6 records

Direct peers

• Iguá Saneamento: Private Brazilian sanitation company focused on water supply and sewage treatment concessions across multiple states. Directly comparable in scale, geography, and concession-based operating model.
• BRK Ambiental: Major Brazilian private water and sewage concessionaire with operations across dozens of municipalities. Competes head-to-head with GS Inima Brasil in concession auctions and serves similar municipal and industrial customers.
• Aegea Saneamento: One of Brazil's largest private sanitation concessionaires, operating water and sewage concessions across multiple states under long-term municipal contracts — directly comparable business model, customer base, and concession structure to GS Inima Brasil.

Broad incumbents

• Veolia Water Technologies: Global environmental services and water technology major with concessions and industrial water services worldwide. Provides benchmark for industrial water treatment and reuse capabilities similar to GS Inima's Aquapolo and Triunfo operations.
• Sabesp: State-owned water and sewage utility of São Paulo and the largest in the Americas. Both a partner (SESAMM, SANEVAP, Araucária consortia) and indirect competitor to GS Inima Brasil in São Paulo state concessions.
• Sanepar: State-owned water and sewage utility of Paraná, listed on B3. Comparable in offering (water supply + sewage treatment) but operates as a public utility incumbent in its home state rather than a private concessionaire.
• Copasa: State-owned water and sewage utility of Minas Gerais. Operates as both an incumbent concession holder and counterparty in concession auctions where GS Inima Brasil competes (e.g., SANEOURO in Ouro Preto).
• Acciona Agua: Global water treatment and desalination specialist with extensive concession and EPC capabilities. Comparable in industrial water, desalination, and large-scale treatment technology to GS Inima Brasil's global platform.

Regional players

• Águas do Rio: Private water and sewage concessionaire serving Rio de Janeiro state municipalities. Similar concession-based business model to GS Inima Brasil but primarily operates in a distinct regional geography.

Others

• GS Inima Environment: Spanish parent company of GS Inima Brasil and the originating Inima Group founded in 1955. Operates the global portfolio of water concessions and desalination (30+ plants) that underpins GS Inima Brasil's technology and capabilities.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UC-NwoKfV4_LfaodJhyfPdVQ
• Facebookfacebook.com/gsinimasamaroficial
• LinkedInlinkedin.com/company/gs-inima-brasil
• Instagraminstagram.com/gsinimasamar

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

Subsidiaries13 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 GS Inima Brasil