Several companies , including ABB , Siemens , Endress+Hauser , and Emerson , dominate the process automation sector . ASEA Brown Boveri offers automated systems and electrical solutions, while Siemens https://get-social-now.com/story7437485/asea-brown-boveri-versus-electrical-siemens-versus-endress-hauser-versus-emerson-electric-a-comparison-at-industrial-automation-giants