HSY

What HSY does

HSY (Helsingin seudun ympäristöpalvelut -kuntayhtymä) is a Finnish municipal joint authority providing water supply, wastewater treatment, and waste management services to over 1.2 million residents of the Helsinki metropolitan area (Helsinki, Espoo, Vantaa, Kauniainen, and Kirkkonummi by agreement). The organization is owned by its four member municipalities and operates under the Water Supply Act and Waste Act as a statutory utility, reinvesting approximately €200 million annually in infrastructure out of ~€400 million in turnover. Core infrastructure includes the 120-kilometer Päijänne Tunnel sourcing raw water from Lake Päijänne, two surface-water treatment plants (Pitkäkoski and Vanhakaupunki), approximately 3,000 km of water distribution network, two large rock-cave wastewater treatment plants (Viikinmäki, the largest in the Nordics serving ~900,000 people; Blominmäki, the second largest serving ~400,000), five Sortti® recycling stations, and the 200-hectare Ämmässuo eco-industrial centre for circular-economy processing.

The operating model combines statutory monopoly service provision with a digital-first customer engagement layer. Recurring revenue is generated through monthly water supply fees (base fee plus usage component), monthly waste management fees (container size, emptying frequency, and waste type), one-time water network connection fees, and municipal contributions that fund the regional and environmental information function. Distribution is direct-to-property for water/wastewater, supplemented by five physical Sortti stations, mobile Sortti collection vehicles, large-item pickup, and trailer rental; the OmaHSY portal (launched November 2024 for personal customers, December 2025 for business customers) and the Työtilaus- ja liittymisportaali support self-service. AI is deployed in a tightly scoped, human-supervised role for content drafting, summarization, knowledge retrieval, and data analytics, with no autonomous AI in safety-critical operations.

Customer segments are dominated by residential properties (households, housing cooperatives / taloyhtiöt) supplemented by businesses served through property-management intermediaries and private waste transporters (HSY provides secondary reception where the private market fails). HSY has committed to carbon-neutral water and waste management operations by 2030 and is conducting approximately 40,000 water-quality tests per year to monitor treatment performance. The organization is publicly owned, with no external equity investors, and is governed by an assembly of member-municipality representatives.

Name

HSY

Legal name

Helsingin seudun ympäristöpalvelut -kuntayhtymä

Website

https://hsy.fi

Company type

Private

Founded year

2010

Operating status

Operating

Headcount range

251–500 employees

Short description

HSY is a Finnish municipal joint authority providing water supply, wastewater treatment, and waste management services to over 1.2 million residents across the Helsinki metropolitan area, operating critical infrastructure including a 120-km water tunnel and two large rock-cave wastewater plants under a regulated statutory mandate.

Ownership category

akta.pro rank

Product category

Municipal Water and Waste Management Services

NAICS

Water, Sewage and Other Systems (2213), Sewage Treatment Facilities (22132), Sewage Treatment Facilities (221320), Water Supply and Irrigation Systems (221310)

SIC

Water Supply (4941), Sanitary Services (4950), Refuse Systems (4953), Electric, Gas & Sanitary Services (4900)

akta.pro primary industry

Water Supply & Wastewater Utilities Administration (BPAIACAG)

akta.pro secondary industries

Commercial & Institutional MSW Collection (BPALAAAB), Public Works & Municipal Infrastructure (Streets, Stormwater, Facilities) (BPAIACAF), Public Works / In-House Municipal Collection Operations (EUAIAAAF)

Keywords

• Municipal water supply
• Wastewater treatment services
• Waste management services
• Recycling stations
• Circular economy hub

Headquarters

HQ city

Helsinki

HQ country

Finland

HQ region

Europe

Offices8 records

Markets served

GTM type

B2C

Offering type

Services

Cost components

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

Revenue model

1. Water supply service fees: Revenue from water supply services funded by customer fees charged to residential and commercial properties connected to the HSY water network. Water fees fund the maintenance, development, and renewal of water infrastructure.
2. Waste management service fees: Revenue from waste collection and treatment services funded by customer fees. Includes fees for waste container emptying, sorting services, Sortti station drop-offs, and hazardous waste handling.
3. Municipal contributions and external project funding: The regional and environmental information function (seutu- ja ympäristötieto) is funded by municipal contributions from member cities (Helsinki, Espoo, Vantaa, Kauniainen) and external research/project funding.

Pricing tiers

Go-to-market motion1 record

Distribution channels7 records

Marketing channels7 records

Core offering

HSY provides statutory municipal water supply, wastewater treatment, and waste management services to over 1.2 million residents of the Helsinki metropolitan area. Services are funded by customer fees (water and waste tariffs) and municipal contributions, and are delivered through a fixed infrastructure network (the 120 km Päijänne Tunnel, ~3,000 km of water mains, the Viikinmäki and Blominmäki rock-based wastewater plants, five Sortti recycling stations, and the Ämmässuo eco-industrial centre), supplemented by digital self-service portals such as OmaHSY and eSortti.fi.

Product overview

HSY (Helsingin seudun ympäristöpalvelut) is a municipal joint authority providing water supply, sewage, and waste management services to the Helsinki metropolitan area (Helsinki, Espoo, Vantaa, Kauniainen) and Kirkkonummi, serving over one million residents. The organization operates across two main service areas — water and waste — plus a regional and environmental information unit. The core water supply service (Vesihuolto) delivers drinking water sourced from Lake Päijänne via a 120 km tunnel and operates two large bedrock wastewater treatment plants (Viikinmäki and Blominmäki). The waste management service (Jätehuolto) includes sorted waste collection, five Sortti recycling stations, the Ämmässuo eco-industrial centre, and a range of Sortti sub-brands (eSortti online pre-registration, Sortti-kontti for hazardous waste, Sortti-nouto for large item pickup, Sortti-peräkärry trailer rental, and Sortti-keräysautot mobile collection). Customer-facing digital products include OmaHSY (self-service portal for managing invoices, meter readings, and service changes) and the Työtilaus- ja liittymisportaali (connection and work-order portal for water and sewer connections). The Ilmastoinfo platform provides environmental education through web courses and materials.

Differentiator

Problem solved

Functional benefit

Products and services

• Vesihuolto (Water Supply Service) Drinking water supply to over 1.2 million residents of the Helsinki metropolitan area. Raw water is conveyed from Lake Päijänne via the 120 km Päijänne Tunnel and treated at the Pitkäkoski and Vanhakaupunki surface water treatment plants before distribution through approximately 3,000 km of network. Customers are billed monthly on a base fee plus usage basis.
• Jätehuolto (Waste Management Service) Household and commercial waste collection, transport, and treatment across the Helsinki metropolitan area. Includes sorted collection (mixed waste, biowaste, plastic, glass, cardboard, metal packaging), composting guidance, and access to Sortti stations and the Ämmässuo eco-industrial centre. Separate price lists apply for residential and business customers.
• Viikinmäen jätevedenpuhdistamo (Viikinmäki Wastewater Treatment Plant) Largest wastewater treatment plant in the Nordic countries, built inside rock caves in Helsinki. Serves approximately 900,000 residents from Helsinki, central and eastern Vantaa, Kerava, Tuusula, Järvenpää, and Sipoo. Open for guided group visits.
• Blominmäen jätevedenpuhdistamo (Blominmäki Wastewater Treatment Plant) Finland's second-largest wastewater treatment plant, built inside rock caves in Espoo. Serves approximately 400,000 residents from Espoo, Kauniainen, Kirkkonummi, Siuntio, and western Vantaa. Open for guided expert visits.
• Sortti-asemat (Sortti Recycling Stations) Five physical recycling stations in Kivikko (Helsinki), Konala (Helsinki), Ruskeasanta (Vantaa), Ämmässuo (Espoo), and Jorvas (Kirkkonummi). Accept a wide range of household and business waste, with many items received free of charge and others subject to fees. Sortti® is HSY's registered trademark.
• Ämmässuon ekoteollisuuskeskus (Ämmässuo Eco-Industrial Centre) A ~200-hectare circular economy hub in Espoo that receives truck-scale waste loads, processes biowaste into biogas and fertilizer, handles waste-to-energy plant ash and slag, collects and utilizes landfill gas, and sorts waste for material recovery. Part of the Ekomo circular economy network. Open for expert guided tours.
• eSortti.fi Online Pre-Registration Service Online service allowing customers to register and pre-pay for waste they bring to Sortti stations, and to estimate prices for items such as mattresses or armchairs before visiting.
• OmaHSY Online Self-Service Portal Online customer portal for personal and business customers (oma.hsy.fi) enabling invoice viewing and payment, contact detail updates, waste container emptying schedules, water meter readings, and water consumption monitoring with graphical views. Access via Suomi.fi strong authentication (bank credentials, mobile certificate, or Suomi.fi delegation for organizations).
• Työtilaus- ja liittymisportaali (Connection and Work-Order Portal) Online portal (liittymisportaali.asiointi.hsy.fi) for ordering water supply connection work, submitting KVV building plans, scheduling connections, ordering meter installations, and managing technical work related to water and sewer connections.
• Ilmastoinfo Environmental Education Platform Web-based environmental education platform offering courses for property managers, residents, and organizations on energy efficiency, waste management, climate training, energy renovation guidance, and a housing company manager guide covering water, waste, and energy management.
• Sortti-kontti Hazardous Waste Container Container service at Sortti stations accepting dangerous/hazardous waste materials from households free of charge.
• Sortti-keräysautot (Mobile Sortti Collection Vehicles) Mobile recycling units that travel around the HSY service area on scheduled rounds, providing an additional waste collection point for residents beyond the fixed Sortti stations.
• Sortti-nouto Large-Item Pickup Service Pickup service for large items (isoille tavaroille) arranged by HSY, allowing residents to have large waste items collected from their location rather than transporting them to a Sortti station.
• Sortti-peräkärry Trailer Rental Trailer rental service available to HSY customers for transporting waste to Sortti stations.
• Hanavesibaari (Tap Water Bar) Mobile tap water service operated by HSY at public events during the water supply service's 150th anniversary year, providing refreshing high-quality tap water at events from May through late August.

Quantifiable outcome

• Approximately 40,000 water quality tests conducted annually
• +4 more outcomes

Named customers7 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration6 records

AI capability6 records

Feature3 records

Partnerships

Nine partnerships are on record, tiered core and minor.

• City of HelsinkicoreOthersHelsinki is the largest owner of HSY. The city receives water supply, wastewater treatment, and waste management services from HSY and participates in HSY's governing assembly (yhtymäkokous) which holds the highest decision-making authority.
• City of EspoocoreOthersEspoo is an owner municipality of HSY, receiving water, wastewater, and waste management services and participating in joint governance through the assembly of representatives.
• City of VantaacoreOthersVantaa is an owner municipality of HSY, receiving water, wastewater, and waste management services and participating in joint governance.
• City of KauniainencoreOthersKauniainen is the smallest owner municipality of HSY, receiving water, wastewater, and waste management services and participating in joint governance.
• Municipality of KirkkonummiminorOthersKirkkonummi receives water, wastewater, and waste management services from HSY by agreement, not as an owner municipality.
• Vantaan Energia OyminorStrategic or Co-development PartnerVantaan Energia Oy operates the waste-to-energy plant near Ämmässuon ekoteollisuuskeskus. Due to the plant's annual maintenance from 22 June to 17 July 2026, mixed waste will be received at the Ämmässuo center during that period.
• Ympäristökoulu Polku (Pääkaupunkiseudun Kierrätyskeskus Oy)minorStrategic or Co-development PartnerYmpäristökoulu Polku, operated by Pääkaupunkiseudun Kierrätyskeskus Oy, delivers HSY's environmental education and consultation services to residents, housing companies, schools, and organizations in the Helsinki metropolitan area and Kirkkonummi, including composting courses and waste sorting guidance.
• Property management companies and housing cooperatives (taloyhtiöt)minorChannel Partner/ Reseller/ DistributorProperty management companies and housing cooperatives act as intermediaries for HSY's services, ordering waste collection and managing water/waste services on behalf of residents in apartment buildings.
• Private waste transport companiesminorChannel Partner/ Reseller/ DistributorUnder waste law, businesses and organizations must order waste transport from private waste management companies, with HSY providing secondary reception (TSV) when private operators are not available on reasonable terms.

Scale indicators9 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• HOFOR: Copenhagen-area multi-utility owned by municipalities, providing water, wastewater, heating, and city services — the closest Danish analog to HSY's combined water-and-waste municipal utility model.
• HAMBURG WASSER: Hamburg's municipal water and wastewater utility, comparable in scale and statutory model to HSY, with similar exposure to large urban population, harbor/Baltic-region environmental regulation, and aging infrastructure renewal.
• Berliner Wasserbetriebe: Berlin's municipal water and wastewater utility, comparable to HSY in its large urban service area, statutory mandate, and focus on water/wastewater as core services.
• Stockholm Vatten och Avfall: Stockholm's municipal water and waste utility, directly comparable to HSY in its Nordic capital-region, statutory, water-and-waste mandate. Both serve ~1M+ residents with similar regulatory, demographic, and climate profiles.
• Oslo Vann- og avløpsetaten (VAV): Oslo's municipal water and wastewater authority, a direct Nordic municipal-utility peer operating under a similar statutory mandate with comparable scale, infrastructure age, and capital intensity.

Regional players

• RenoNorden: Nordic/Baltic waste collection and recycling operator, comparable to HSY's waste management business in geography and service lines but operating as a private-sector hauler rather than a statutory municipal authority.

Emerging players

• Fortum Waste Solutions: Nordic circular-economy and waste-to-energy operator, comparable to HSY's Ämmässuo circular economy hub and biogas/material-recovery activities, though operating commercially rather than as a statutory municipal utility.

Broad incumbents

• Veolia Environnement: Global environmental services and water utility giant; a broad incumbent in the same water/waste space as HSY, but operating across continents and including private-sector municipal concessions rather than a single statutory region.
• Severn Trent: Major UK regulated water and waste utility; a broad incumbent in the same industry as HSY with overlapping water/waste operations, regulated returns model, and similar capex-heavy infrastructure profile.
• Suez (Suez Water / Water Technologies & Solutions): Global water and waste services group; a broad incumbent peer of HSY in municipal water/waste services, though private-sector and multi-geography versus HSY's single-region municipal structure.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/hsy_fi
• YouTubeyoutube.com/user/HSYviestinta
• Facebookfacebook.com/helsinginseudunymparistopalvelut
• LinkedInlinkedin.com/company/helsinki-region-environmental-services-authority
• Instagraminstagram.com/hsy_fi
• TikToktiktok.com/@hsy.fi

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 HSY