AIA Gold Medal in the context of "Aston Webb"

Louis Henry Sullivan (September 3, 1856 – April 14, 1924) was an American architect, and has been called a "father of skyscrapers" and "father of modernism". He was an influential architect of the Chicago School, a mentor to Frank Lloyd Wright, and an inspiration to the Chicago group of architects who have come to be known as the Prairie School. Along with Wright and Henry Hobson Richardson, Sullivan is one of "the recognized trinity of American architecture." The phrase "form follows function" is attributed to him; it encapsulated earlier theories of architecture and he applied them to the modern age of the skyscraper. In 1944, Sullivan was the second architect to posthumously receive the AIA Gold Medal.

Walter Adolph Georg Gropius (German pronunciation: [ˈvaltɐ ˈadɔlf ˈɡeːɔʁk ˈɡʁoːpiʊs]; 18 May 1883 – 5 July 1969) was a German-American architect and founder of the Bauhaus School, who is widely regarded as one of the pioneering masters of modernist architecture. He was a founder of Bauhaus in Weimar and taught there for several years, becoming known as a leading proponent of the International Style. Gropius emigrated from Germany to England in 1934 and from England to the United States in 1937, where he spent much of the rest of his life teaching at the Harvard Graduate School of Design. In the United States he worked on several projects with Marcel Breuer and with the firm The Architects Collaborative, of which he was a founding partner. In 1959, he won the AIA Gold Medal, one of the most prestigious awards in architecture.

Charles Willard Moore (October 31, 1925 – December 16, 1993) was an American architect, educator, writer, Fellow of the American Institute of Architects, and winner of the AIA Gold Medal in 1991. He is often labeled as the father of postmodernism. His work as an educator was important to a generation of American architects who read his books or studied with him at one of the several universities where he taught.

César Pelli (October 12, 1926 – July 19, 2019) was an Argentine-American architect who designed some of the world's tallest buildings and other major urban landmarks. Three of his most notable buildings are the Petronas Towers in Kuala Lumpur, the World Financial Center in New York City, and the Salesforce Tower in San Francisco. The American Institute of Architects named him one of the ten most influential living American architects in 1991 and awarded him the AIA Gold Medal in 1995. In 2008, the Council on Tall Buildings and Urban Habitat presented him with The Lynn S. Beedle Lifetime Achievement Award.

Louis Isadore Kahn (born Itze-Leib Schmuilowsky; March 5 [O.S. February 20] 1901 – March 17, 1974) was an Estonian-born American architect based in Philadelphia. After working in various capacities for several firms in Philadelphia, he founded his own atelier in 1935. While continuing his private practice, he served as a design critic and professor of architecture at Yale School of Architecture from 1947 to 1957. From 1957 until his death, he was a professor of architecture at the School of Design at the University of Pennsylvania.

Kahn created a style that was monumental and monolithic; his heavy buildings for the most part do not hide their weight, their materials, or the way they are assembled. He was awarded the AIA Gold Medal and the RIBA Gold Medal. At the time of his death, he was considered by some as "America's foremost living architect."

John Wellborn Root (January 10, 1850 – January 15, 1891) was an American architect who was based in Chicago with Daniel Burnham. He was one of the founders of the Chicago School style. Two of his buildings have been designated National Historic Landmarks (the Rookery, and the Reliance); others have been designated Chicago landmarks and listed on the National Register of Historic Places. In 1958, he was posthumously awarded the AIA Gold Medal.