Globally, the top-selling tractor brand by total unit volume is Mahindra & Mahindra (India), which maintains a dominant market share driven by immense domestic demand across South Asia, combined with expanding international sales footprints in North America, South America, and various developing global markets. Other massive international heavyweights like John Deere (Deere & Company) also compete closely for global revenue dominance depending on whether unit sales or total machinery revenue is measured.