About BAE Systems Space & Mission 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. Evaluate supplier cost elements including direct labor hours, labor mix, labor rates, overhead, G&A, indirect rates, material estimates, supplier quotes, sub‑tier supplier pricing, non‑recurring engineering, tooling costs, and escalation assumptions.