WASHINGTON--(BUSINESS WIRE)--Barbara Humpton has been named President and Chief Executive Officer at Siemens Government Technologies, Inc., effective October 1, 2015. Humpton joined SGT in October 2011 as Senior Vice President for Business Development. Last year, she was appointed SGT's first Chief Operating Officer. SGT is a federally compliant Siemens legal entity. Prior to joining SGT, Humpton held senior leadership and management positions at Lockheed Martin and Booz Allen Hamilton, where s