SED International Holdings, Inc. announced that the company has appointed Derrek P. Hallock as SVP and GM of the U.S. Commercial Division. The Commercial Division has responsibility to grow SED's business among the VAR, MSP and OEM communities. Mr. Hallock will be based in the company's Atlanta area headquarters and will manage both the client sales and vendor management functions of the Commercial Division.

Most recently Mr. Hallock was Tech Data's Vice President of TDAgency, with direct responsibility for managing a $60 million full service marketing and advertising agency. Prior to TDAgency, Mr. Hallock had responsibility for Tech Data's SMB VAR Sales managing operations in the U.S., Canada and Costa Rica. He has also held management positions at CompuCom Systems, Dixie Aerospace and American Airlines.