How can we help you?
Cloud costs, migration, security, network or telephony? Call us, write to us or use the form – the initial consultation is free.
Your contacts at ONNA
Sales and shop
Quotes for hardware, security technology and software licences, orders and deliveries.
Support and maintenance
Faults, maintenance appointments and questions about existing installations.
Contact form
Briefly describe your request. Only the fields marked * are required – everything else helps us prepare the conversation.
Send a request
How to reach us
ONNA GmbH
Salierring 42
50677 Cologne
Germany