Numerous companies , including ASEA Brown Boveri, Electrical Siemens, E+H, and Emerson , lead the process automation landscape . ASEA Brown Boveri is known for power & automation and drives , while Siemens https://travialist.com/story12408892/asea-brown-boveri-versus-electrical-siemens-versus-e-h-versus-emerson-a-comparison-at-leading-automation-firms