BAE Systems Inc. is led by President and Chief Executive Officer Tom Arseneault, and is headquartered in Falls Church, Virginia. It maintains operating locations in 38 states, with especially large concentrations in the Northeastern and Southeastern regions of the U.S. The enterprise holds over 2,000 patents and is a dominant player in many of the markets it addresses. For example, it builds the electronic-warfare systems for the tri-service F-35 fighter; it produces all of the vehicles in U.S. Army’s Armored Brigade Combat Teams except the Abrams tank; and it is the biggest provider of ship repair services to the Navy.