About BAE Systems Electronic Systems BAE Systems, Inc. is the U.S. subsidiary of BAE Systems plc, an international defense, aerospace and security company which delivers a full range of products and services for air, land and naval forces, as well as advanced electronics, security, information technology solutions and customer support services. Expertise in U.S. customs law, tariffs, import/export regulations, and compliance frameworks, including an understanding of the United States Munitions List (USML), Commerce Control List (CCL), and Harmonized Tariff Schedule (HTS).