Our company
We are the largest water utility in Estonia, providing water and wastewater services to about a third of the population. We serve approximately 25,000 private and business customers and about 500,000 end-consumers in Tallinn and the surrounding municipalities. AS Tallinna Vesi’s are listed on the Nasdaq Baltic Main List. As at 31 December 2025, the company had 360 employees.
About us
The company has two treatment plants: Ülemiste Water Treatment Plant and Paljassaare Wastewater Treatment Plant. Every day, we pump an average of 68,800 m3³ of drinking water to the distribution network and treat 143,000 m³ of wastewater. Tallinna Vesi also has accredited water and wastewater laboratories.
The public water supply system includes more than 1,210 km of water pipes, 22 water pumping stations and 49 groundwater pumping stations with a total of 91 borewells. The surface water catchment system in Harju and Järva counties spans an area of around 1,800 km². The public sewerage system comprises over 1,200 km of wastewater pipes and 520 km of stormwater pipes, as well as 181 wastewater and stormwater pumping stations, located throughout the service area.
Tallinna Vesi was privatised in 2001. The service agreement concluded with the City of Tallinn at the time of privatisation was in effect until 30 November 2022. A new administrative contract was signed with the city for the period 01/12/2022–30/01/2032. Alongside the approval of the administrative duty, AS Tallinna Vesi has been appointed as the water undertaker within the main public water supply and sewerage service area in Tallinn until 30 November 2032 (incl.).
The Tallinna Vesi Group comprises the parent company, AS Tallinna Vesi, and its subsidiaries, Watercom OÜ and ASTV Green Energy OÜ (in liquidation). Established in 2010, Watercom aims to provide services to the parent company, expand the range of services offered, and develop non-regulated services. Watercom OÜ is wholly owned by AS Tallinna Vesi, and its results are consolidated with those of the group.
The group's structure has remained largely unchanged in recent years. Tallinna Vesi's shares are listed on the Nasdaq Baltic Main List. As at 31 December 2025, shareholders with direct holdings of more than 5% were OÜ Utilitas and the City of Tallinn.
Our main products and services
Collection, treatment and supply of water
Collection, treatment and disposal of wastewater and stormwater
Transportation services and road construction
Water and wastewater services
Laboratory services
Owner supervision and project management
Pipe construction
Design services
Our vision and mission
We are committed to providing high quality drinking water, ensuring uninterrupted service, and collecting and treating wastewater and stormwater in a way that is safe for the environment.
Our vision:
We create a better life with pure water
Our mission:
We connect people to the vital cycle of water
Strategy
Simply put, we aim to ensure a better quality of life with clean water. Through our business, we are part of the natural water cycle, providing our customers with clean water that they can use with confidence, knowing that the same water will be returned to nature in a way that is safe for the environment. To make this vision a reality, we have set five strategic objectives that form the pillars of our business: sustainable urban development, reducing environmental impact, ensuring continuity, affordable prices, and employee satisfaction and strong shareholder relations.
Strategic objectives
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We enable the sustainable urban development by providing high-quality water services, pioneering modern stormwater solutions and developing green urban space. We connect our customers to the vital water infrastructure and deliver excellent customer experiences using smart solutions and digital service channels.
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We reduce the environmental impact of our customers to ensure that a clean Baltic Sea is maintained and that surface water is used as a sustainable resource. We promote the circular economy, use renewable energy generated in our own operations and adopt modern technologies.
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We ensure the continuity of vital water services by maintaining our assets in a reliable condition, building resilience to climate change and -risks, and implementing robust cyber security measures.
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We strive to maintain affordable prices for our customers by continuously improving our efficiency through modern technologies, digitalization and automation. We invest wisely and in partnership with local authorities and other utility owners.
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We value employee satisfaction and strong relationships with shareholders. We invest in our people by promoting a safe and fair working environment and supporting continuity through a well-designed succession programme. We work together to grow company’s value and meet the expectations of our shareholders.