We are here to help you.


Okko Kouvalainen
+358 20 131 0601
Arttu Vesterinen
+358 20 131 0611


Switchboard: +358 20 131 0601

Mailing address

Annankatu 27 A
00100 Helsinki


We have switched over to an electronic billing process and our billing addresses are:

Web bills

Online billing address: FI2052710420288558
Bank Operator: Osuuspankki (OKOYFIHH)
Format of material: Finvoice

Paper bills

Plan Brothers Ltd.
Ostolaskut 8253C PL 72
00521 Helsinki

We do not accept bills to our mailing address. We wish to receive our bills via the Internet in electronic format. If, however, you send us paper bills, please note that you CANNOT send any other material except bills and their SCANNABLE attachments. No other material (e.g. receipts, corporate presents, credit cards, entrance tickets) is transmitted via the scanning service.

Other mail should be delivered to our company's mailing address.