The story
Founded by Terry Considine in 1975.1
Aimco traces its roots to The Considine Company, formed in 1975 by Terry Considine. Aimco was incorporated on January 10, 1994 and became a public company via an initial public offering on July 29, 1994.
From Wikipedia’s article on Aimco, shared under CC BY-SA 4.0.6