Numerous entities, including ABB , Siemens , Endress+Hauser , and Emerson , dominate the process automation landscape . ABB specializes in power & automation and motion control , while Siemens features a https://atozbookmark.com/story21810068/abb-versus-electrical-siemens-versus-e-h-versus-emerson-electric-a-comparison-at-leading-automation-firms