Virtuozzo IaaS (OnApp) Support

Get support for Virtuozzo IaaS (OnApp) products


OnApp became part of Virtuozzo in August 2021, and this is the new home of the OnApp support portal. Over time we will update our documentation and articles with our new Virtuozzo product names.

Use our Knowledge Base below and product documentation to get answers to your questions. If you can't find what you need, our Technical Support team is ready to help. Please, use Web form or write us to to submit a ticket. You can also call us on the numbers below.

To reach our account management team write to


Knowledgebase articles


Call us

You can reach us out using one of the phone numbers below (be ready to provide support code):

  • United States

    • +1 888 876 8666
  • United Kingdom

    • +44 20 3318 5364