1. Companies starting with B:

      Backbone Entertainment
      Backyard Software
      Bad Elf Software
      bam!
      Barbie Software
      BAT
      Batovi Games Studio
      Battlefront.com
      Baudville
      BC Soft Games
      Beam Software
      Beavis-Soft
      Bedlam Games
      Beenox
      Beep Industries
      Behaviour Interactive
      Berserker Works
      Bethesda Softworks
      Beyond Software
      Big Fish Games
      Big Five Software
      Big Huge Games
      Big Idea
      Big Time Games
      Big Wig Media
      Bignet
      Binary Brotherz
      Binary Systems
      Binary Zoo
      Bindweed Entertainment
      Bioware
      BiP Media
      Bitbliss Studios
      Bizarre Creations
      Bizzare Creations
      Black Element Software
      Black Hammer Productions
      Black Isle Studios
      Black Lantern Studios
      Black Ops
      Black Rock Studio
      Blake Co.
      Blast! Software
      Blazeware
      Blitwise Productions
      Blitz Games
      Blizzard Entertainment
      Blue Byte
      Blue Chip Software
      Blue Fang
      Blue Gecko Entertainment
      Blue Planet Software
      Blue Sky
      Blue Tea Games
      Bluemoon
      Bohemia Interactive Studio
      Boiled Sweets
      Bondarchuk V
      Boonty
      Breakaway Games
      Brenner
      Brighter CHILD
      Brighter Minds
      Brilliant Digital
      Britannica Software
      Broderbund
      Brothersoft
      Brute Force Programming
      Buena Vista Games
      Bulletproof Software
      Bullfrog
      Bungie Studios
      Burger King
      Buzz Monkey
      BYTE
      Byxon Games

      Note: bolded names indicate companies that released a game within the last twelve months.