About BAE Systems Platforms & Services 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. Expert Knowledge of business winning practices inclusive of proposal development, solution strategies inclusive of technical, cost, schedule, and contractual elements, color team review practices and price to win strategies.