Businesses flourish in Derby. Rolls-Royce came to Derby over 100 years ago and now has its global civil aerospace and nuclear HQs in the city. Toyota UK chose Derby over 20 years ago and continues to invest in its operations here. Bombardier designs and builds trains in the city, which is the world's largest rail cluster. Together they employ ca. 22,000 people - Derby's workforce is highly skilled and the envy of many cities.