SOM (Skidmore, Owings & Merrill) is an American architectural, urban planning, and engineering firm. It was founded in 1936 and is one of the largest and most influential architecture firms in the world. SOM has designed some of the world’s most recognizable buildings, including the Burj Khalifa in Dubai, One World Trade Center in New York, and the John Hancock Center in Chicago. The firm is known for its modernist designs and expertise in large-scale projects such as skyscrapers, museums, and corporate headquarters.