Hartz Mountain Industries is one of the largest privately held real estate companies in the U.S. The firm boasts more than 38 million square feet of commercial, residential, and retail property in the New York City metro area, including the Soho Grand and Tribeca Grand hotels. NYU’s Stern School of Business is named after him, …

The LeFrak Organization was founded back in 1901 by the late Harry LeFrak. His son Samuel helped to grow the company, specifically with the development of LeFrak City back in 1963, a five million-square-foot residential complex in Queens. Richard, Samuel’s son, is now the firm’s chairman and CEO, while Richard’s two sons, Harrison and James, …