The Trump Organization is an American limited liability conglomerate based in Trump Tower in Manhattan, New York. Donald Trump worked for his father's firm, Elizabeth Trump & Son, while attending the Wharton School of the University of Pennsylvania, and in 1968 officially joined the company. He was given control of the company in 1971 and renamed it The Trump Organization. The company has interests in real estate development, investing, brokerage, sales and marketing, and property management.