BAE Systems is one of the largest manufacturers of defense equipment in the world. The company has expertise in the development and delivery of advanced defense, security and aerospace systems. With a staff of more than 10,000 people, it serves customers in over 100 countries. BAE Systems has annual sales of nearly 18 billion. The company designs and manufactures a range of electronic systems and subsystems for both military and commercial uses. Its product line includes electronic warfare systems, navigation components, avionics controls and radiation-hardened digital equipment. BAE Systems also offers acoustic communication and underwater surveillance systems. In addition, the company provides tactical systems and high-capacity radios. It has operations in the United States, Australia, Saudi Arabia, South Africa, Sweden and the United Kingdom.