The Bucs also signed ninth-rounder Chad Kuhl, a righty from Delaware, and 12th-round pick Beau Wallace from Hinds (Miss.) Community College.
The club's 17th-, 18th-, and 19th-round picks -- righty Justin Topa (LIU-Brooklyn), outfielder Jeff Roy (Rhode Island) and righty Brett McKinney (Ohio State) -- also signed.
Those six will report to the Jamestown Jammers, the Pirates' Short-Season Class A affiliate.
Infielder Adam Landecker out of USC, Stetson lefty Cameron Griffin and University of San Francisco outfielder Justin Maffei, the 21st-, 23rd- and 25th-round picks, respectively, all signed and will report to the Gulf Coast League Pirates, a rookie ball team.
Infielder Michael Fransoso, the Bucs' 27th-round pick, signed and will be sent to Jamestown.
Tom Singer is a reporter for MLB.com and writes an MLBlog Change for a Nickel. He can also be found on Twitter @Tom_Singer. Steven Petrella is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.