This chart documents the history and mergers of tractor manufacturing companies over the past 120 years. We are constantly working to update and improve the chart, contact me with any comments.©2000-2019 - TractorData™. Notice: Every attempt is made to ensure the data listed is accurate. However, differences between sources, incomplete listings, errors, and data entry mistakes do occur. Consult official literature from the manufacturer before attempting any service or repair.