Corporate Information Portal. Find headquarters email contacts, addresses and the corporate office phone numbers for every major company in the USA. Contact company executives and customer service representatives at www.headquartersnumbers.net/. The website lists factsheets and headquarters details for: The Walmart Headquarters, Best Buy, Sears, Facebook Headquarters, UPS, Uber and Lyft Headquarters, Pizza Hut and Dominos corporate offices, Taco Bell Headquarters, General Electric Headquarters, Toyota Headquarters, and many many others. The website also delivers guides to HR Departments, and Employee Portal, such as: WalmartOne, Aces ETM Limited Brands, Target EHR, Macys Insite, Myloweslife, Myhr CVS, MyTHDHR, and others.