Several companies , including ABB , Electrical Siemens, Endress+Hauser , and Emerson , lead the industrial automation sector . ABB specializes in automated systems and electrical solutions, while Siemens https://thesocialroi.com/story11967212/asea-brown-boveri-versus-siemens-versus-endress-hauser-versus-emerson-a-look-at-leading-automation-firms