Contact us

HSY Helsinki Region Environmental Services Authority

Exchange: +358 9 15611 (available 8:30 am to 4 pm)
Fax: +358 9 1561 2011

Postal address: P.O. Box 100, FI-00066 HSY
Street address: Opastinsilta 6 A, FI-00520 Helsinki

HSY Registry Office (available 8:30 am to 3:30 pm):
tel. +358 9 1561 2010
kirjaamo(at)hsy.fi or hsy(at)hsy.fi

Invoicing

HSY Waste Management, HSY Regional Information and Administrative Services:
HSY Helsinki Region Environmental Services Authority
P.O. Box 203
FI-00066 HSY

HSY Water:
HSY Helsinki Region Environmental Services Authority
P.O. Box 303
FI-00066 HSY

Business ID: 2274241-9

Give feedback

Contacts of the Departments and Operational Areas:

HSY Waste Management

HSY Water

HSY Regional Information

Communications

Administrative Services

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