Contact Us
Book a time with one of our experts or send a message using the contact form.
Customer Support:
08:00–16:00 Helsinki time (UTC+2/UTC+3)
support@zef.fi
+358 10 4237 900
Sales
Katariina Leskinen Sanhueza
Sales Manager, HR Lead
FIN | ENG
katariina.leskinen@zef.fi +358 44 902 6225
Customer Success
Joonas Vuolukka
CS AI Agent & Automation Developer (technical support)
FIN | ENG
joonas.vuolukka@zef.fi
Book a Meeting with Our Expert
Book a personal meeting with our sales team and find out how our solutions can help you achieve your goals. Choose a time that suits you and we will tailor the discussion to your needs.
Contact Us
Want to get in touch with us? Fill in the form or contact us directly by email or phone.
Sähköposti: support@zef.fi
Puhelin: +358 10 4237 900
Billing Information
We primarily request that invoices be sent as e-invoices.
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E-invoice address:
Company: ZEF Oy
Business ID: 0640379-1
E-invoice address: 003706403791
E-invoice operator: Apix Messaging Oy (003723327487)
Intermediary ID: 003706403791
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If you cannot send e-invoices, please send PDF invoices to our scanning service:
003706403791@procountor.apix.fi
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Postal address for sending invoices to the scanning service:
ZEF Oy (Apix scanning service)
PL 16112
00021 LASKUTUS
Finland