Related Companies is a private real estate firm based in the United States, known for its development and investment in various properties. Founded in 1972 by Stephen Ross, the company has played a significant role in shaping urban landscapes, particularly in cities like New York and Los Angeles. The firm is recognized for its large-scale projects, including the Hudson Yards development in New York City, which is one of the largest private real estate developments in U.S. history. Related Companies focuses on mixed-use developments, combining residential, commercial, and retail spaces to create vibrant communities.