4 Comcast Brand Guidelines > Use of primary logo When do we use the primary logo? Welcome to our 2012 Annual Review Welcome to our 2012 Annual Review The primary Comcast logo is used for various corporate-level communications such as the Annual Review, the corporate website, advertising, certain corporate events, stationery. The primary Comcast logo is used on XFINITY communications in place of the current crescent C Comcast logo.