Bullfrog Productions, game featured: Populous, acquired by EA in 1995
Maxis, game featured: Sim City 2000, acquired by EA in 1997
Westwood Studios, game featured: Command and Conquer - Red Alert, acquired by EA in 1998
DreamWorks Interactive LLC, game featured: Medal of Honor, acquired by EA in 2000
Honorable mention to Mythic Entertainment/Bioware, acquired by EA in 2006
Song referenced: Runaway Train - Soul Asylum
Not sure what would have happened, obviously, but their games were always pretty thorough and deceptively in-depth. Unfortunately we saw what happened to Plants VS Zombies under EA :/