MLBTR's agency database is constantly updated with the latest representation changes. For example, the database reflects our early morning tweet that Rays righty Jeff Niemann is now with Hendricks Sports as he awaits his first arbitration year, rather than CAA. Casey Close's move to Excel Sports Management is in the database as well. If you're ever wondering about a player's agent, MLBTR's database is the best resource on the web.
While we're on the topic, we're attempting to determine who represents Jonathan Herrera, Alexi Ogando, Jay Gibbons, and Tom Wilhelmsen, so please email firstname.lastname@example.org if you know the answer.