For 23 years CRN has conducted its Channel Champs survey, seeking to identify which IT vendors are at the top of their game in meeting the needs of their channel partners. This year's winners were recognized in a ceremony at the XChange Solution Provider 2013 conference in Orlando last month.

The Channel Champ scores are based on a survey of more than 4,000 solution providers across 30 technology categories, including three new areas this year: Network Connectivity Services, System Management/Network Management and WAN Optimization/Acceleration. Solution providers were asked to grade vendors in the areas of technical satisfaction, support satisfaction and financial factors.

In addition to defining which vendors are leading the way in partner satisfaction, the scores – including year-to-year comparisons – also provide an interesting snapshot of the competitive dynamics in each technology category. Who's up and who's down? Take a look.