Bluestone Investment Partners, a McLean, Virginia-based private equity firm focused on investing in defense, intelligence and federal technology solutions providers, today announced that Kevin M. Phillips has joined the team as an Executive Partner. Phillips currently serves as the Chairman of the Board for ManTech, a high-tech, high-end engineering and cyber company dedicated to serving the national and homeland security needs of federal government customers.

Phillips led the successful sale of ManTech to Carlyle in September 2022 for $4.2 billion. His tenure at ManTech includes serving as President and Chief Executive Officer from 2018 until his retirement in October 2022; Chief Operating Officer from 2016 to 2018; Chief Financial Officer from 2005 to 2016; and Chief of Staff and Assistant to the Chairman from 2002 to 2005.