This Enterprise is boldly going where it hasn’t gone before — the airport. The company, which offers to ferry customers to the rental office, is the largest car rental firm in the US. With about 525,000 cars in its fleet, Enterprise operates in the US, Canada, Germany, Ireland, and the UK. The company targets customers whose own cars are in the shop or who need a rental for short trips; it has also begun serving the airport market. Controlled by founder Jack Taylor and his family, Enterprise has spun off its non-automotive operations (balloons, footwear, a golf course, hotel amenities, and prison supplies, formerly known as Enterprise Capital Group) as Centric Group.