Virtuozzo is now offering an OpenVZ Maintenance Partnership program. The program provides bug resolution support and feature development to the OpenVZ community. The OpenVZ Maintenance Partnership has a small annual fee and provides two benefits to partnership members.

Partnership members will receive a support ID that will allow them to submit support requests and/or bugs, up to ten per year
Requests are handled by a professional support team
Bugs will be placed at higher priority level
Partnership members will also be able to submit a feature request(s) which will be reviewed by the Virtuozzo engineering team. They will work with you to clarify the requirements and implementation options and provide an implementation estimate and a schedule.

https://www.virtuozzo.com/support/openvz/