BAE Systems is a global company engaged in the development, delivery and support of advanced defence, security and aerospace systems in the air, on land and at sea. We have major operations across five continents, with cu......BAE Systems is a global company engaged in the development, delivery and support of advanced defence, security and aerospace systems in the air, on land and at sea. We have major operations across five continents, with customers and partners in more than 100 countries. We have strong positions in each of our six home markets – Australia, Saudi Arabia, South Africa, Sweden, UK, US – and have organised the business to reflect this.