Tom Afferton, president of cyber mission, Peraton Inc., Herndon

John Coleman, president of global defense and security, Peraton Inc., Herndon

Roger Mason, president of space and intelligence, Peraton Inc., Herndon

Tarik Reyes, president of civil and health, Peraton Inc., Herndon

National security contractor Peraton has made massive moves lately, purchasing Perspecta Inc. for $7.1 billion and Northrop Grumman Corp.’s federal IT and mission support services business for $3.4 billion, all in cash. A subsidiary of private equity firm Veritas Capital, Peraton in February divided the company into four sectors — led by Afferton, Coleman, Mason and Reyes. Reyes and Afferton both come from Northrop Grumman, while Mason and Coleman were promoted from within Peraton.