- A.D. Worthington & Co.1
- A.G. Spalding & Bros3
- A.M.R.1
- A.R.E.
Clinic1
- Aach, Herbert, 1923-19851
- Aalto, Alvar, 1898-19761
- Aardse, Leny1
- Aarnio, Eero, 1932-1
- Aaron Siskind Foundation2
- Aaron family1
- Aaron, Jane1
- Aaron, John1
- Aaron, Reid S. (Reid Stanley), 1918-19441
- Aarons, George Manuel, 1896-19801
- Aarons, Slim1