Caterpillar Inc. is an American manufacturer of construction, mining, and other engineering equipment. The company is the world's largest manufacturer of construction equipment. In 2025, Caterpillar was ranked 64th on the Fortune 500 and 118th on the Forbes Global 2000. Caterpillar stock is a component of the Dow Jones Industrial Average. Caterpillar Inc. traces its origins to the 1925 merger of the Holt Manufacturing Company and the C. L. Best Tractor Company, creating a new entity, California-based Caterpillar Tractor Company. In 1986, the company reorganized itself as a Delaware corporation under the current name, Caterpillar Inc. It announced in January 2017 that over the course of that year, it would relocate its headquarters from Peoria, Illinois, to Deerfield, Illinois, scrapping plans from 2015 of building an $800 million new headquarters complex in downtown Peoria. Its headquarters are located in Irving, Texas, since 2022. The company also licenses and markets a line of clothing and workwear boots under its Cat / Caterpillar name. Additionally, the company licensed the Cat phone brand of toughened mobile phones and rugged smartphones from 2012 to 2024.