Original sentence: Formed in 1994, they have several releases on various independent record labels, including Deep Elm Records, who released an EP in 2000 and a full-length in 2002 (under the name Seven Storey)
Edited sentence: Formed in 1994, they have several releases on various independent record labels, including Deep Elm Records, who released an EP in 2000  and a full-length in 2002 (under the name Seven Storey)