Ziegler Inc. was founded in 1914 by W.H. Ziegler. Caterpillar dealership Ziegler Inc., also known as Ziegler Cat, sells and leases new and used Caterpillar brand equipment for multiple industries including construction, forestry, mining, and waste. With a large rural sales territory, Ziegler's also sells Challenger brand tractors and combines built by Agco Corp. (whose engines and components are made by CAT), and other ag equipment makers, as well as related industrial work tools. Sales are leveraged by stocking over 250,000 parts for Caterpillar and non-CAT equipment. Other services include product support and on-site maintenance.