The Trump Organization is a group of about 500 business entities of which Donald Trump is the sole or principal owner https://en.wikipedia.org/wiki/The_Trump_Organization#cite_note-5 Morgan, Lewis & Bockius LLP. "Status of U.S. federal income tax returns" (PDF). The Trump Organization. Archived (PDF) from the original on October 7, 2016. Retrieved October 7, 2016.