Screen9 supports any ads delivered via the VAST standard which means that most adservers will be supported. In some cases adservers support specific features which are not included in the VAST standard and Screen9 supports some of these adservers as well.
Currently, dedicated support exists for Smartclip and Videoplaza. Other adservers may be dedicatedly supported in the future. If you have questions about dedicated adserver support, please contact sales.