ManTech International Corporation (NASDAQ: MANT) has promoted Daniel J. Keefe to executive vice president and general manager of the company’s Technical Services Group (TSG).

TSG provides technology solutions and services in integrated logistics, maintenance and sustainment, C4ISR, information technology modernization and other technology support to U.S. government organizations. Keefe will be responsible for the leadership of TSG’s operational unit general managers, program management offices, customer relationship management programs, and organic growth and program execution.

Before entering civilian industry, Keefe completed a distinguished U.S. Army career, retiring as a brigadier general. As a flag officer, he served as the commander in Kosovo and as V Corps chief of staff during Operation Iraqi Freedom. He held a variety of command and staff positions in the U.S., Germany, Korea and Italy and participated in non-combatant evacuations and humanitarian operations in Africa.

“Since he joined ManTech, Dan has been instrumental in guiding TSG’s operational direction and strategic planning efforts,” said Louis M. Addeo, president and chief operating officer of TSG. “His Army knowledge and experience coupled with his dynamic leadership style will be of tremendous benefit to our employees and customers.”

Keefe holds a bachelor’s degree in engineering from the United States Military Academy at West Point and a master’s degree in economics from the University of Oklahoma.

“I am excited to take on this new role,” said Keefe. “ManTech has a proud history supporting our armed forces and I am honored to be able to help guide that support into the future.”

About ManTech International Corporation

ManTech is a leading provider of innovative technologies and solutions for mission-critical national security programs for the intelligence community; the departments of Defense, State, Homeland Security, Energy and Justice, including the Federal Bureau of Investigation; the space community; the National Oceanic and Atmospheric Administration; and other U.S. federal government customers. We support critical national security programs through 1,000 current contracts. ManTech’s expertise includes command, control, communications, computers, intelligence, surveillance and reconnaissance (C4ISR) lifecycle support, cyber security, global logistics support, intelligence/counter-intelligence support, information technology modernization and sustainment, systems engineering, and test and evaluation. ManTech supports major national missions, such as military readiness, terrorist threat detection, information security and border protection. Additional information on ManTech can be found at

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