From billionaire business tycoons to innovative entrepreneurs, some of IDB's notable banking clients include real estate developers Harry B. Macklowe and Francis J. Greenburger; angel investor David Tisch; John Catsimatidis, owner of Gristedes, the largest grocery chain in Manhattan; apparel maker Jordache and the Nakash family who founded it; and Howard Lorber, the President and CEO of Vector Group, a holding company that owns Douglas Elliman, one of the largest residential real estate firms in the United States, as well as the Pyramid, Liggett Select and Eve tobacco brands.