Quite a few companies , including ABB , Electrical Siemens, Endress+Hauser , and Emerson , dominate the factory automation market. ASEA Brown Boveri specializes in power & automation and drives , while https://bookmark-media.com/story22083699/asea-brown-boveri-versus-electrical-siemens-versus-e-h-versus-emerson-electric-a-comparison-at-industrial-automation-giants