 His business partners are Paul Cobbe and Adam Karon.Their client list includes, or included at one time, Major League Baseball All-Star and 2003 Rookie of the Year Dontrelle Willis; All-Stars Josh Johnson, Jay Bruce, and Matt Moore; Ricky Nolasco; Josh Hamilton; Freddy Sanchez; Josh Willingham; and Ryan Doumit.Sosnick addressed the 2007 national convention of the Society for American Baseball Research in addition to many other appearances and lecture series.