Turun Seudun Vesi Oy - Turku Region Water Ltd

What Turun Seudun Vesi Oy - Turku Region Water Ltd does

Turun Seudun Vesi Oy is a municipal wholesale water utility founded in 1974 and wholly owned by nine municipalities in the Turku region of Southwest Finland (Kaarina, Lieto, Masku, Naantali, Nousiainen, Paimio, Parainen, Raisio, and Turku). It is the second-largest water producer in Finland, delivering over 23 million cubic metres of artificially recharged groundwater annually to approximately 300,000 end consumers via its shareholder municipalities. The company does not sell directly to consumers; instead, each municipality handles local distribution and retail billing.

The company's core offering is the Virttaankangas Managed Aquifer Recharge (MAR) facility. Raw surface water is drawn from the River Kokemäenjoki, pre-treated (sieving, coagulation, filtration), and transmitted approximately 30 km to the Virttaankangas esker, where it is infiltrated through 22 infiltration basins. The water undergoes approximately 3–4 months of natural underground purification in the esker aquifer, after which it is extracted through 13 production wells, disinfected using UV light and chloramine, and piped gravitationically roughly 60 km to bedrock reservoirs in Turku and Lieto for onward municipal distribution. The company applies 3D geological aquifer modelling, continuous automated quality monitoring, partial energy self-sufficiency via a hydropower turbine at Saramäki and solar generation, and is investing €60 million in the Halisten backup water plant (under construction since April 2025, scheduled for completion 2028) to meet environmental permit requirements for supply continuity.

Revenue is generated through long-term regulated wholesale water supply agreements with its nine shareholder municipalities, classified as recurring subscription-style service revenue. Water tariffs are set at the individual municipal level rather than by the company, and pricing is not publicly disclosed. The company is not privately held or venture-backed; ownership rests entirely with the municipalities, and the board consists of representatives from each shareholder municipality, chaired by Jonas Heikkilä, with Aki Artimo as CEO.

Name

Turun Seudun Vesi Oy - Turku Region Water Ltd

Legal name

Turun Seudun Vesi Oy

Website

https://turunseudunvesi.fi

Company type

Private

Founded year

1974

Operating status

Operating

Headcount range

11–50 employees

Short description

Municipal wholesale water utility owned by nine Turku region municipalities in Finland, producing artificially recharged groundwater via the Virttaankangas managed aquifer recharge facility and delivering over 23 million cubic metres annually to approximately 300,000 end consumers.

Ownership category

akta.pro rank

Product category

Wholesale Water Utility Services

NAICS

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

SIC

Water Supply (4941)

akta.pro primary industry

Raw Water Conveyance & Transmission (Aqueducts, Mains, Pumping Stations) (EUANAAAB)

Keywords

• Wholesale water supply
• Artificial groundwater production
• Managed aquifer recharge
• Municipal water utility
• Drinking water treatment

Headquarters

HQ city

Turku

HQ country

Finland

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Wholesale Water Supply to Municipalities: Turun Seudun Vesi Oy operates as a wholesale water utility (tukkuvesiyhtiö) owned by nine Turku region municipalities. Revenue is generated by producing and supplying artificially recharged groundwater to its shareholder municipalities under long-term service agreements. Municipalities pay for water supply services, which are regulated under Finnish municipal utility frameworks. The company delivers over 23 million cubic metres annually to ~300,000 end consumers.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels6 records

Core offering

Turun Seudun Vesi Oy is a municipal wholesale water utility that produces and supplies artificially recharged groundwater to its nine shareholder municipalities in the Turku region. The company operates the Virttaankangas Managed Aquifer Recharge facility, which uses raw water from the River Kokemäenjoki, pre-treatment, infiltration through 22 basins, and natural purification over 3-4 months before extraction via 13 production wells and pipeline distribution. The company delivers over 23 million cubic meters annually to approximately 300,000 end consumers across the nine municipalities.

Product overview

Turun Seudun Vesi Oy is a wholesale water company owned by nine Turku region municipalities. The company operates a single integrated water production and distribution system based on artificially recharged groundwater (tekopohjavesi). The core offering is the Virttaankangas artificial groundwater production system, which includes raw water intake from River Kokemäenjoki, pre-treatment facilities, 22 infiltration basins, 13 production wells, and approximately 60 km of pipelines to bedrock reservoirs. The company produces over 23 million cubic meters annually for approximately 300,000 customers. A major infrastructure project (Halisten Backup Water Plant, completing 2028) is underway to ensure supply continuity.

Differentiator

Problem solved

Functional benefit

Products and services

• Artificial Groundwater Production (Tekopohjavesituotanto) The company's core production service: raw water from the River Kokemäenjoki is pre-treated (sieving, coagulating, filtering), infiltrated through 22 basins into the Virttaankangas esker aquifer, naturally purified over approximately 3-4 months, and extracted via 13 production wells. The produced water requires no pH adjustment or iron removal before distribution.
• Water Quality Monitoring Service Continuous water quality monitoring during all phases of drinking water production using automatically operating measuring devices. Tested parameters include total hardness (avg 2.9 °dH / 52 mmol/l), pH (avg 8.5), iron (<2 µg/l), and water temperature (always below 10 °C year-round). Water has met all quality norms throughout the facility's operational history.
• Water Transportation and Distribution Groundwater is pumped from production wells to a clean water reservoir, then gravitationally piped along approximately 60 km of pipelines to bedrock reservoirs in Turku and Lieto. Water is disinfected using UV light and chloramine before distribution to municipal networks.
• Wholesale Water Supply to Nine Municipalities The company supplies artificially recharged groundwater under long-term service agreements to nine Turku region shareholder municipalities: Kaarina, Lieto, Masku, Naantali, Nousiainen, Paimio, Parainen, Raisio, and Turku. The supply serves approximately 300,000 end consumers with over 23 million cubic meters delivered annually.
• Halisten Backup Water Plant (Varavesilaitos) A €60 million backup water facility under construction at Halinen that will ensure drinking water acquisition, production, and network pressure maintenance when the normal water supply system is unavailable. The facility is designed to be technically independent from the artificial groundwater system.

Quantifiable outcome

• Water quality has fulfilled all quality norms throughout the entire operational history of the facility
• +4 more outcomes

Named customers9 records

Segments1 record

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Twelve partnerships are on record, tiered core and minor.

• Skanska Infra OycoreImplementation/ SI/ Consulting Partner · 31 March 2025Skanska Infra Oy is the general contractor for the construction of the new Halisten backup water plant (Halisten varavesilaitos). The €60 million investment is one of the largest in the company's history. Construction began in April 2025 and is scheduled for completion in 2028. The groundbreaking ceremony took place in April 2026.
• Turun ammattikorkeakoulu (Turku University of Applied Sciences)coreStrategic or Co-development Partner · 1 March 2024Turku AMK coordinates the 'Comprehensive Cybersecurity in Water Supply in Southwest Finland' project (Vesihuollon kokonaisvaltainen kyberturvallisuus Varsinais-Suomessa), running from 1 March 2024 to 30 August 2025. The project aims to strengthen water supply organizations' information and cybersecurity capabilities. Turun Seudun Vesi and Turun seudun puhdistamo Oy are partners. The project collaborates with the Cybersecurity Centre and is funded by the Ministry of Agriculture and Forestry.
• Turun Vesihuolto OycoreStrategic or Co-development Partner · 25 January 2024Turun Vesihuolto Oy is the municipal water utility serving the City of Turku, and is a key operational partner. The two companies collaborate on sustainability initiatives including the Itämerihaaste commitment (2024-2028), Yrityskylä education program, joint carbon footprint calculation, and the Halisten backup water plant project.
• Turun seudun puhdistamo OycoreStrategic or Co-development Partner · 25 January 2024Turun seudun puhdistamo Oy is the regional wastewater treatment company. It collaborates with Turun Seudun Vesi on sustainability initiatives including Itämerihaaste (2024-2028), Yrityskylä education program, joint carbon footprint calculation, and the cybersecurity development project coordinated by Turku AMK.
• Turku EnergiaminorStrategic or Co-development Partner · 1 January 2021Turku Energia and Turun Seudun Vesi Oy signed a Letter of Intent regarding a drinking water heat recovery pilot project. The initiative investigates the feasibility of integrating a heat recovery system into the water production and distribution process. A preliminary study was completed and the heat recovery system is being incorporated into the design of the Halisten new backup facility.
• Ilmastojoukkue Turku (Turku Climate Team)minorStrategic or Co-development Partner · 1 January 2021Turun Seudun Vesi Oy is a member of Turku City's Climate Team, a community of regional actors working collaboratively to combat climate change. Team activities include solar energy production for water treatment, hydropower generation, and achieving climate-positive water operations.
• Itämerihaaste (Baltic Sea Challenge)coreStrategic or Co-development Partner · 1 January 2021Itämerihaaste invites organizations to commit to protecting the Baltic Sea, develop their own Baltic Sea action program, and implement it. Turun Seudun Vesi Oy has been part of Itämerihaaste since 2020 and committed to the 2024-2028 action period alongside other Turku water companies. The company has also contributed to the Baltic Sea Challenge environmental programme.
• Finnish Water ForumminorGTM or Marketing Partner · 1 January 2021Finnish Water Forum is a community of Finnish water companies promoting Finnish water expertise internationally. Turun Seudun Vesi Oy participated in the Finnish Pavilion at the Dubai World Expo 2022 (World Water Week) through the Finnish Water Forum, showcasing managed aquifer recharge technology internationally.
• HSY (Helsinki Region Environmental Services)minorStrategic or Co-development Partner · 1 January 2021Turun Seudun Vesi Oy participated in the JV-LÄMPÖ project ('Energy Balance of Heat Recovery in the City and its Impact on Wastewater Treatment') alongside HSY and others. The project (2021-2022) received environmental ministry funding and examined the potential of heat recovery and cooling in water use without harm to stakeholders.
• Syöpäsäätiö (Cancer Foundation Finland)minorOthers · 1 January 2021Turun Seudun Vesi Oy redirects its annual Christmas card budget to Syöpäsäätiö's Christmas fundraising campaign, supporting Finnish cancer research and families in need. The company has made this donation redirect annually since at least 2021.
• Yrityskylä / Talous ja nuoret TATminorGTM or Marketing Partner · 1 January 2020Turun Seudun Vesi Oy participates in the Varsinais-Suomen Yrityskylä (Enterprise School) program alongside Turku Vesihuolto Oy and Turun seudun puhdistamo Oy, running a water utility 'mini-company' to educate 6th and 9th graders about work life, economy, and society. The program reaches approximately 90,000 students annually across Finland.
• GTK (Geological Survey of Finland)minorStrategic or Co-development Partner · 1 January 2018GTK coordinates the Viet MAR project ('Managed aquifer recharge to ensure sustainable groundwater availability and quality under ongoing climate change and fast economic development in Vietnam'). Turun Seudun Vesi Oy participates as an expert in managed aquifer recharge technology, sharing Finnish expertise internationally and supporting the development of local Vietnamese organizations' capabilities.

Scale indicators8 records

Recent moves7 records

Expansion highlights4 records

Broad incumbents

• Erftverband: German water management association operating managed aquifer recharge and water treatment facilities in the Rhineland. Comparable in MAR technology use and large-scale infrastructure investment, though operating under a different governance and geographic model.
• Vitens: Largest drinking water utility in the Netherlands, serving 5.6 million customers. Comparable in core function (drinking water production from groundwater/surface sources and distribution) but operates at much larger scale and across a broader geography.

Direct peers

• Oulun Vesi: Municipal water utility serving Oulu, Finland's fifth-largest city. Comparable Finnish municipal water utility operating surface water intake, treatment, and distribution at similar regional scale.
• HSY (Helsinki Region Environmental Services Authority): Finnish municipal water and wastewater utility serving 1.4 million residents in the Helsinki metropolitan area. Most directly comparable Finnish peer: same municipal utility model, drinking water production and distribution, integrated water/sewage operations. Already partnered with Turun Seudun Vesi on the JV-LÄMPÖ heat recovery project.
• Kuopion Vesi: Municipal water utility serving the Kuopio region in Finland. Operates lake-water-based drinking water production with similar treatment, distribution, and regulatory framework as Turun Seudun Vesi — a useful benchmark for Finnish surface-water-fed municipal utilities.
• Jyväskylän Seudun Vesi Oy: Municipal water utility serving the Jyväskylä region. Comparable in operating model (regional municipal ownership, drinking water production and distribution to several municipalities) and Finnish regulatory environment.
• Turun Vesihuolto Oy: Municipal water distribution utility for the City of Turku, the largest shareholder of Turun Seudun Vesi. Operates the retail distribution arm that delivers water from Turun Seudun Vesi to end consumers. Direct operational partner on sustainability, Yrityskylä, and Halisten projects.
• Porvoon Vesi: Municipal water utility serving the Porvoo region in Finland. Operates groundwater-based drinking water production — closely comparable to Turun Seudun Vesi's aquifer-based production model, although on a smaller scale.
• Tampereen Vesi: Municipal water utility serving the Tampere region in Finland. Comparable in operating model (municipality-owned drinking water production/distribution) and target customer type (regional households and businesses). One of the larger Finnish water utilities alongside HSY and Turun Seudun Vesi.
• Turun seudun puhdistamo Oy: Regional wastewater treatment company for the Turku region — sister entity to Turun Seudun Vesi under shared municipal ownership. Collaborates on sustainability initiatives, Yrityskylä, and cybersecurity projects. Comparable municipal utility structure serving the same geographic market on the wastewater side.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/turun-seudun-vesi

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles13 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 Turun Seudun Vesi Oy - Turku Region Water Ltd