Executive Team

PAUL C. THOMAS

President & CEO

Paul is responsible for providing strategic leadership for the company by working with the Board and other management to establish long-range goals, strategy and vision, plans and policies, and build the company culture, values and the team. Prior to his current role with AAC, Paul held executive positions with Teksouth Corporation, L3 Communications, Wyle Laboratories, De La Rue and CSC.Paul has a strong background in delivering technology and functional solutions to both US Government and commercial customers.  His focus is on providing delighted customers with value through enabling mission and business success.

Paul holds a B.S. in Business from the United States Military Academy at West Point, an M.S. in Strategic Intelligence from the Defense Intelligence College, and an M.S. in Systems Engineering from the Naval Postgraduate School.  He is married to the former Lori Gillaspy and has seven children (four adopted).  He is active in child welfare activities to include adoption and foster care support, and enjoys coaching youth baseball and wrestling.

YVONNE ADAIR

Senior Vice President & Chief Financial Officer

Yvonne joined AAC in 1986 as one of only 15 employees, and has since proved instrumental to the growth and stability of the company. Responsible for all administrative functions, including finance, accounting, legal and human resources, Yvonne develops organizational and financial policy, evaluates business plans and contingencies, and provides oversight on contracts. Working closely with the rest of the executive team, Yvonne is proud of improving the overall financial and operational efficiency of the company.  Yvonne attended Auburn University and has a BS in Accounting from Canal Zone College.

UGUR KOSER

Vice President, Information Systems & CIO/CTO

As CIO/CTO, Ugur is responsible for providing technological direction, strategic leadership and expert advice to AAC and its customers. Ugur’s pragmatic and hands-on approach results in consistently high quality, best-value, well-timed solutions for customers. With Ugur’s guidance, AAC has helped federal agencies adopt new technologies and processes, reduce capital and service delivery expenses and optimize entire IT environments.

Ugur spearheaded and continues to lead AAC’s Process Improvement and IT Service Management groups. His team ensured that AAC met the demanding ISO 20000 criteria for IT Service Management. Completing his graduate studies in computer science at the George Washington University before joining AAC in 1984.

CHUCK SCREEN

Vice President, Department of Defense

Chuck joined AAC in 2007 and brings over 35 years of experience to his leadership role. Chuck is responsible for developing and managing AAC’s defense programs, ensuring that AAC’s services are expertly executed.

Chuck’s technical expertise spans IT operations and programming, federal contracting, business administration, management and strategic planning. He holds certifications in ITIL v3 Foundations, ISO 9001 Quality Management and ISO 27001 Information Security Management.

As a U.S. Navy veteran, Chuck thoroughly understands the inherent needs of defense customers. He enjoys the privilege of supporting the war fighter and the critical mission of the armed forces. 

ROB STEVENSON

Vice President, Federal Civilian and Health IT

Rob joined AAC in 2014 and is responsible for the operations and growth of AAC’s Federal Civilian and Health IT business area. He brings a strong competency and commitment of consistent service delivery and customer satisfaction to each of our customers.

Rob has over 28 years of operational and financial experience in the Federal Civilian and Health IT sectors. He specializes in the development of business solutions to meet the unique needs of each cusomter. Prior to his current role with AAC, he held executive, operational, and financial positions with CSC, DynCorp, and GTE.

Rob received his B.S. and M.B.A. (Finance) from Virginia Tech.