Avoin.Systems Oy / Web-veistämö
Kuortaneenkatu 2
00510 Helsinki
How may we help you?
Don’t hesitate to contact us
Customer service
If you have a support contract with Avoin.Systems, you may leave a ticket to: tuki@avoin.systems
Invoicing
EDI/OVT number
003723493688
E-invoice operator
003721291126
(if bank as an operator: DABAFIHH)
Arrival instructions
Our office is located at the corner of streets Kuortaneenkatu and Elimäenkatu.

From outside you will see the white facade of the GE building. Step in from the main entrance that has a GE sign above the door.

When arriving to the lobby you need to register at the info desk where you will receive a visitor passport which is needed when visiting the building. If the info desk employees are absent call us and we will pick you up from the lobby.