BAE Systems is a British multinational defence, security, and aerospace company. It provides innovative solutions and critical capabilities to give it's customers an essential edge, helping to protect nations, prosperity and people around the world. BAE Systems is the largest defence contractor in Europe and among the world's largest defence companies. It operates in four principal markets – US, UK, Saudi Arabia and Australia and also export products and services. This currently accounts for a significant percentage of the business and is an important source of growth.