Caterpillar Inc., is an American corporation which designs, manufactures, markets and sells
machinery,
engines,
financial products and insurance to customers via a worldwide
dealer network. Caterpillar is the world's leading manufacturer of construction and mining equipment, diesel and natural gas engines, industrial gas turbines and diesel-electric locomotives. With more than US$89 billion in
assets, Caterpillar was ranked number one in its industry and number 44 overall in the 2009
Fortune 500. Caterpillar
stock is a component of the
Dow Jones Industrial Average.