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Helsinki Region Environmental Services Authority HSY

HSY is a regional authority that provides water services and waste management services and produces information about the Helsinki Metropolitan Area and the environment. HSY helps people act for a better environment.

Contact information

Visiting address

Ilmalantori 1

00240 Helsinki

Organisation identification data
Business ID: 2274241-9

Electronic invoicing details
Electronic invoicing address (EDI code):
OVT = 0037227424191
Intermediator code:
Customer service
+358 915612110 
(local/mobile network fee)

Postal address

PB 100

00066 Hsy