ManTech restructures executive suite

ManTech has added the title of chief operating officer to the presidents of its three operating units in a move to fill the hole left by the departure of COO Lawrence Prior, who joined BAE Systems.

ManTech International Corp. has named the presidents of its three operating groups as chief operating officers.

The company’s former COO, Lawrence Prior, recently left ManTech to join BAE Systems Inc.

In the new structure, Louis Addeo of ManTech Technical Services Group; Terry Ryan of ManTech Systems Engineering and Advanced Technologies; and L. William Varner of ManTech Mission, Cyber and Technology Solutions, all are adding COO to their titles. They will all report to Chairman and CEO George Pedersen.

“We believe that this new management structure will contribute to our ability to achieve our financial objectives and support our customers' critical missions,” Pedersen said in a statement. “Their strong leadership, strategic vision, understanding of the market and ability to work jointly have contributed significantly to ManTech’s success over the past year.”

Before joining ManTech, Addeo was the COO of Serco NA. He also was president of AT&T Government Solutions and vice president of AT&T’s National Information Systems division.

Ryan was director of intelligence, surveillance and reconnaissance for the Office of the Department of Defense, president and CEO of Adroit Systems Inc., and president and chairman of Mercury Federal Systems.

Varner was vice president, corporate officer and executive director of the intelligence operations unit of Northrop Grumman TASC. He was previously with ESL Inc.

ManTech is ranked No. 31 on the 2010 Washington Technology Top 100 list of the largest government contractors.