He studied at the Latvian State University (1973–78), worked in the “Ogre” photo studio (1978–1988).
From 1979 he is a teacher at the House of Technical Innovation in Riga, where he gained his reputation as an influential photography teacher of many Latvian contemporary photographers, film-makers and artists, such as Ritums Ivanovs, Arnis Balčus and Gints Bērziņš.
At "Ogre" photo studio he formed an informal group "A" with photographers Inta Ruka, Valts Kleins and Gvido Kajons.
Andrejs Grants gained international recognition by collaborating with group "A" ideological leader Egons Spuris' widow Inta Ruka.
Similar to Ruka's work, Andrejs Grants' main theme are the people in Latvia.