Siemens Corporation seems to know a lot about a diversified product structure. Owned by Germany's Siemens AG, a global electronics and electrical engineering juggernaut, Siemens Corporation is its parent's US holding company that operates through four chief segments: Industry (automation technology and products for drain systems); Energy (fossil fuel, renewable energy, power transmission, and distribution); Healthcare (imaging, diagnostics systems, and radiation therapy equipment); and Infrastructure & Cities (rails systems and security equipment for cities and urban infrastructures). Siemens Corporation has a presence in all 50 states and Puerto Rico.