Lockheed Martin announced Wednesday it has named Mark Valerio vice president and general manager, special programs for its Space Systems Company. Valerio succeeds Thomas J. Scanlan, who is retiring June 30.

Valerio will lead one of Space Systems Company's largest lines of business, which comprises more than 2,200 employees, focusing on sensitive national security space system developments.

"Mark Valerio is highly qualified for this assignment. His career with Lockheed Martin spans 26 years, including significant program management experience in first-of-a-kind programs for a wide-range of customers," said G. Thomas Marsh, Space Systems Company's executive vice president.

In his previous role, Valerio was responsible for integrating processes and best practices across the entire special programs line of business. He also has served as vice president and deputy of the Space Based Infrared System program, and he led the design, development and delivery of Lockheed Martin's first three A2100 satellites.

Valerio earned a bachelor's degree in mechanical engineering from Widener University and master's degrees in both business administration and information systems from the University of Colorado at Denver.