Quite a few firms , including ASEA Brown Boveri, Siemens , E+H, and Emerson Electric, dominate the factory automation market. ASEA Brown Boveri specializes in power & automation and electrical solutions, https://checkbookmarks.com/story7683065/asea-brown-boveri-versus-electrical-siemens-versus-e-h-versus-emerson-a-comparison-at-leading-automation-firms