Executive Management Team
Jeff Browder
Chairman of the Board
Jeff Browder brings over 40 years of subject matter expertise in air traffic control and management, system operations, training, quality control, airspace and procedures, safety management, structural reorganization and process improvement. He joined ATAC in 2010 in the Business Development group and led those efforts until late 2015, then taking over Program Management of critical elements of the FAA’s Metroplex airspace and procedures enhancement efforts. In 2021, he resumed Directorship of Business Development, until phasing back to part-time and subsequently retiring at the end of 2022. Jeff currently provides consulting to the executive leadership team of ATAC on air traffic matters.
During his tenure at ATAC, Jeff helped grow their portfolio of products and services to the government (primarily FAA) including safety studies and environmental support.
Prior to his work at ATAC, Jeff was directly involved in a wide range of endeavors, ranging from controlling air traffic to redesigning and implementing large scale airspace and organizational changes. He successfully facilitated both large and small groups and interacted with the full range of air traffic and mission support services provided by the FAA. Jeff had the opportunity to lead discussions with facility leadership nationwide in ushering in the formation of the Air Traffic Organization (ATO) and later helped build and orchestrate the ATO Service Center concept and implementation. He has worked alongside FAA senior leadership to effectively bring about positive change in the four major service units of the ATO – En Route/Oceanic, Terminal, Technical Operations, and System Operations. Additionally, Jeff received professional training in media relations and functions well as an organizational advocate. Jeff holds a BA Degree in Mass Communications (Advertising) from the University of South Florida.
Scott Simcox
President and CEO
Scott Simcox has over 30 years of leadership and management experience in a variety of roles within the aviation and aerospace fields. He provides leadership for ATAC’s business development and marketing efforts, and oversees ATAC’s existing product and service lines, including the Airport and Airspace Simulation Model (Simmod), the Military Airspace Simulation Model (NASMOD), the BirdWatch Reporting System (BWRS), and the Graphical Airspace Design Environment (GRADE®). Scott also works with clients to develop tailored consulting services solutions that leverage ATAC’s unique knowledge and insights in aviation systems modeling and simulation and aviation systems analysis.
Scott began his career in the United States Air Force where he served as a meteorologist, engineering project manager, and satellite operations officer. At the University of California, Berkeley, Scott was the Program Manager and Research Development Director for the National Center of Excellence for Aviation Operations Research (NEXTOR), where he led development efforts and provided management support to faculty and research engineers at five universities, including UC Berkeley, MIT, Maryland, Virginia Tech, and George Mason University.
Prior to taking on his current responsibilities at ATAC, Scott led the business development and marketing initiatives for ATAC’s entire product and consulting services portfolio. Scott received a B.S. degree in Aerospace Engineering from the University of Michigan, a M.S. degree in Meteorology from Penn State University, and an MBA from the University of California, Berkeley.
Dave Schleicher
Vice President and Chief Operating Officer
Dave Schleicher has more than 30 years of experience in the research, development, and systems analysis of advanced air traffic control and cockpit technologies as well as advanced vehicle concepts. Dave also has over 20 years of experience in management of research and development (R&D) projects and organizations and business development.
Dave received his B. S. E. degree in Mechanical and Aerospace Engineering (summa cum laude) from Princeton University. After receiving his Master’s degree in Aeronautics and Astronautics at Stanford University, Dave started his career as a NASA aerospace engineer at NASA’s Ames Research Center working on the design and assessment of advanced military and high-speed civil rotorcraft including civil tiltrotors. After receiving a Diploma (avec grand fruit) at the Von Karman Institute for Fluid Dynamics in Brussels, Belgium, focused on aerodynamics study and research, Dave returned to NASA Ames and served on the research program development and management team that led NASA’s emerging Advanced Air Transportation Technologies (AATT) program. In the AATT program, Dave served as the manager for Benefits and Safety Assessment, where he led in-house and contractor analytical efforts and simultaneously obtained his private pilot’s license.
Since serving at NASA, Dave has worked in multiple roles in private industry as an Air Traffic Management systems engineer, R&D project manager, and business development lead focused on the development of advanced ATM technologies. Dave’s extensive NextGen experience includes the design and development of real-time ATM automation systems spanning the domains of airport, metroplex, and en route airspace as well as the development of advanced general aviation cockpit technologies.
Dave is a co-holder of a patent on a smart airport automation system and has developed algorithms for NASA’s Center-TRACON Automation System’s En route Descent Advisor (EDA). Dave has also led teams in developing both real-time and fast-time ATM simulations and associated scenario generation and analysis tools as well as demonstrations and assessment of new ATM operational concepts for major U.S. government agencies including NASA, the FAA, and the U.S. Department of Agriculture.
Dave has served ATAC as Director of Strategic Programs, and currently serves in the role of Vice President and Chief Operating Officer (COO). As COO, he manages and oversees all active projects, including services, tool development, and IR&D, and works with the Business Development Team to support new strategic business outreach efforts to current and new government and private industry clients.
Steve Scheimreif
Vice President and Chief Financial Officer
Steve Scheimreif provides ATAC over 30 years of Government contracting and financial management experience in all aspects of business operations oversight including strategic planning, annual operating plans, resource management, proposal development, indirect expense planning and control, and business development. Steve joined ATAC in 2016 as ATAC’s Director of Contracts and quickly advanced to Vice President of Contracts before being promoted to the position of Chief Financial Officer in July 2023.
Prior to ATAC, Steve worked with several organizations in the government services industry in a broad range of positions including contracts management, business operations, and proposal development.
Steve has a Bachelor of Science degree in Business Administration with a concentration in Finance as well as Bachelor of Science degree in Economics from Frostburg State University, Maryland.
