Sponsorship Logo Guidelines
These are the logo size restrictions for each sponsorship level. The sidebar refers to the far right-hand side of the conference website, and the sponsor page refers to the web page on the conference site listing all the sponsors. Note that bronze sponsors aren't displayed in the sidebar.
Here is a visual comparison
This means no logo may exceed any dimension, so a 300x120 logo may not be 320x50, or 280x130. If a sponsor only had a 300x300 logo, it would be scaled so that the height would be 120 as that's the largest it can be within the dimension boundaries.