RALEIGH, N.C. (AP) — Blackwater Worldwide is abandoning its tarnished brand name as it tries to shake a reputation battered by oft-criticized work in Iraq, renaming its family of two dozen businesses under the name Xe.

The parent company's new name is pronounced like the letter "z." Blackwater Lodge & Training Center — the subsidiary that conducts much of the company's overseas operations and domestic training — has been renamed U.S. Training Center Inc., the company said Friday.

The decision comes as part of an ongoing rebranding effort that grew more urgent following a September 2007 shooting in Iraq that left at least a dozen civilians dead. Blackwater president Gary Jackson said in a memo to employees the new name reflects the change in company focus away from the business of providing private security.

"The volume of changes over the past half-year have …