Esval S.A. is a Chile-based water utility company engaged in the production and distribution of potable water, as well as the collection, treatment, and disposal of sewage and industrial wastewater. Founded in 1977 and headquartered in Viña del Mar, Chile, the company operates primarily across the Valparaíso Region and extends its sanitation services to the Coquimbo Region through its subsidiary, Aguas del Valle S.A. The company is controlled by the Ontario Teachers Pension Plan and serves residential, commercial, and industrial customers throughout central Chile.
The company provides comprehensive water cycle management services across regulated and non-regulated segments. Its core product and service portfolio includes raw water abstraction and purification; drinking water production, transmission, and distribution through municipal pipeline networks; installation, maintenance, and reading of water metering infrastructure; sewage and wastewater collection network maintenance; biological, mechanical, and advanced wastewater treatment; marine outfall disposal; sludge and biosolids processing; laboratory testing and chemical water quality analysis; liquid industrial waste (RILES) monitoring and technical advisory; and specialized sanitation engineering and network connection works for real estate and industrial developments.
In recent developments, Esval S.A. has accelerated multi-year capital expenditure plans focused on climate change resilience, structural drought mitigation, and operational continuity across central-northern Chile. The company has reinforced regional water security through the expansion and technological upgrading of major drinking water treatment plants, including the Concón and Torquemada facilities, alongside the continuous operational optimization of the Los Aromos reservoir and Concón conveyance pipeline system. In operational modernization, Esval S.A. has integrated automated pressure regulation systems, smart telemetry, and acoustic leak detection technologies across its distribution grid to curb non-revenue water losses. Furthermore, the company has completed targeted debt refinancing and local sustainable bond placements on the Santiago Stock Exchange to finance critical water security infrastructure, while maintaining strategic multi-sectoral water management agreements with local agricultural surveillance boards in the Aconcagua and Elqui river basins.