Original HQ in San Mateo, California, moved to Redwood City in 1998.
Origin Systems in Austin, Texas founded in 1983, acquired in 1992, closed in 2004.
Bullfrog Productions in Surrey, England, founded in 1987, acquired in 1995, merged with EA UK and effectively closed in 2001.
EA Baltimore in Baltimore, Maryland, established in 1996 as part of Origin, closed in 2000
EA Seattle in Seattle, Washington, founded in 1982 as Manley & Associates, acquired January 29, 1996, closed in 2002
Maxis in Walnut Creek, California, founded in 1987, acquired in June 1997, folded into Redwood Shores in 2004
Westwood Studios in Las Vegas, Nevada, founded in 1987, acquired from Virgin Interactive Entertainment in August 1998, merged into EA Los Angeles in 2003.
EA Pacific (known for a time as Westwood Pacific) in Irvine, California, formerly part of Virgin Interactive, acquired with Westwood in 1998, closed in 2003
Kesmai (known also as GameStorm), founded in 1981, acquired in 1999, closed in 2001.
DICE Canada in London, Ontario, started in 1998, acquired DICE fully October 2, 2006; closed DICE Canada studio hours later.
EA Japan in Tokyo, Japan, closed due to consolidation; moved under EA Partners model
EA UK in Chertsey, United Kingdom, moved to EA UK in Guildford
EA Chicago in Hoffman Estates, Illinois, founded in 1990 as NuFX, acquired in 2004, closed November 6, 2007.
Pandemic Studios in Los Angeles, California and Brisbane, Queensland, Australia, founded in 1998, acquired October 2007 from Elevation Partners, closed November 17, 2009.
Bright Light, in Guildford, Surrey, formerly EA UK, closed in 2011.
Los de bright light son los que dices, los de harry potter.