Ross Wilkers

Barbara Humpton became chief operating officer of Siemens Government Technologies — the German conglomerate’s U.S. federal subsidiary — in December 2014 after three years as head of business development for the organization. The 25-year GovCon sector veteran and senior vice president at SGT has been with the subsidiary since its start in 2011 and is also a veteran of Booz […] More

Gulu Gambhir oversees Leidos‘ research and development initiatives and the direction of the company’s technology offerings in his roles as senior vice president and chief technology officer. Gambhir became CTO at Leidos on a full-time basis in October 2013 and also is responsible for the company’s internal information technology initiatives. The 24-year industry veteran recently caught up with […] More

Lynn DeCourcey oversees the cybersecurity line of business at NJVC in her role of vice president and general manager. In this role, she led a team at NJVC that developed a cyber dashboard for users to view information on potential threats on a single console and the tool was selected in 2011 for the (ISC)² Government Information Security […] More

Steve Weiss brings a 30-year background in senior-level leadership and acquisition management experience to his role as executive vice president of government business operations at CACI International. Weiss also participates in CACI’s mergers and acquisitions program that former CEO Jack London started in 1992 and has since seen the company make 55 purchases, such as its buy of Six3 Systems in late 2013 […] More

Vernon Bailey joined SAP NS2 — the German conglomerate’s U.S. national security subsidiary — upon SAP‘s acquisition of Sybase in 2010 and now serves as the subsidiary’s vice president of sales. The 27-year information technology veteran oversees marketing and sales functions for SAP NS2’s database and technologies business and also is responsible for customer experience initiatives. In this […] More

Steve Risseeuw heads SAP‘s work with the Defense Department and its component agencies as a vice president at the technology services contractor. The 15-year information technology industry veteran started his current VP role in 2013 after three years of leadership over the company’s Army account and is also an eight-year veteran of Oracle, where he […] More

Biff Lyons oversees the national security division of Parsons Corp.’s government services segment in his senior vice president role at the Pasadena, Calif.-headquartered engineering contractor. Lyons joined Parsons in 2011 upon that company’s acquisition of SPARTA, where he held a 13-year career in roles such as VP and operations manager of advanced systems technology operation, as well […] More

Mike Maiorana has led the public sector business for Verizon in his senior vice president role there since September 2013 and oversees the telecommunications giant’s work with agencies at all levels of government in the U.S. He is a former VP of national government sales and operations for Verizon Wireless and oversaw that business’ footprint in its Washington-Baltimore-Virginia region prior to his public […] More

Teresa Bozzelli leads Sapient‘s U.S. public sector arm — Sapient Government Services — as president and brings a 20-year background in technology and strategy to her role at the company. Her career includes time at IDC Government Insights, an organization she founded and served as chief operating officer for, and as a vice president at Booz Allen […] More

Chris Alexander oversees Parsons’ efforts to pursue potential opportunities in the public sector market as executive vice president and director of global business development for the company’s government services segment. The 12-year company veteran was promoted to the global BD leadership role in 2013 and managed business development functions for the segment’s national security and defense division prior to […] More

Nick Urick oversees FireEye‘s work with federal agencies in his role as vice president of the federal division for the Silicon Valley-based network security company. FireEye calls its idea for cyber defense an “Adaptive Defense” approach that integrates the company’s technology with threat intelligence and experience in an effort to help government agencies stay ahead of cyber attacks and […] More