About HSY

Helsinki Region Environmental Services Authority HSY is a municipal body, which produces waste management and water services, as well as providing information on the Helsinki Metropolitan Area and environment. We help inhabitants to act for a better environment.

Our principal tasks

  • Water Services we supply high-quality drinking water for over one million inhabitants throughout the Helsinki Metropolitan Area. We treat wastewater generated by households and industry in order to protect the Baltic Sea as well as build and repair the water pipe and sewer network​.
  • Waste Management we organise waste management for residential properties and the public administration, both in the Helsinki Metropolitan Area and Kirkkonummi.
  • Regional and Environmental Information we monitor the air quality in the Helsinki Metropolitan Area at 11 monitoring sites. We promote the implementation of the Helsinki Metropolitan Area Climate Strategy 2030 and the Helsinki Metropolitan Area Climate Change Adaptation Strategy.

The member cities of the Helsinki Region Environmental Services Authority HSY are Espoo, Helsinki, Kauniainen and Vantaa. Our operations are defined in more details in the basic agreement signed by the member cities.

Organisation


The ultimate right of decision-making lies with the board meeting. The board’s power of decision is defined both in the basic agreement and in the administration and management regulations of the Helsinki Region Environmental Services Authority. Read more about HSY’s decision-making »

HSY - key figures​