You wouldn't expect there to be anything special about this tiny brick building at 1209 North Orange Street in Wilmington, Delaware if you drove past it. However, the building is actually home — at least on paper — to some of the largest companies in the world. Apple, eBay, Walmart, Verizon, American Airlines, and more than 300,000 other business entities register their companies here at the CT Corporation.
Curiously unsatisfying video report at link:
http://uk.businessinsider.com/building-wilmington-delaware-largest-companies-ct-corporation-2017-4