The Holt Manufacturing Co. and the C.L. Best Tractor Co. merged to form what was then known as the Caterpillar Tractor Co. in 1925. From the company’s first track-type tractor designed to pull combine harvesters in Northern California to autonomous construction and mining equipment and engines that power the world today, Caterpillar products and services have helped its customers complete important infrastructure projects throughout the world.

“Our success over the last 100 years is a testament to the hard work and dedication of our employees, the continued trust of our customers and the support of our dealers and business partners,” said Jim Umpleby, chairman/CEO, in a statement. “I am proud to lead such a strong team, and I’m confident Caterpillar will continue to help our customers build a better, more sustainable world over the next 100 years.”

Celebrations took place in Sanford, North Carolina, and Peoria, Illinois. At the company’s global headquarters in Irving, Texas, the families of company founders C.L. Best and Benjamin Holt will gather with company leaders and employees to celebrate the company’s first 100 years.