| Black Cactus |
| Black Element |
| Black Hole Games |
| Black Isle Studios |
| Black Lantern Studios |
| Black Market Games |
| Black Ops Entertainment |
| Black Rock Studio |
| Black Sea Studios |
| Blazing Lizard |
| Blendo Games |
| Blitz Games |
| Blizzard Entertainment |
| Blue 52 |
| Blue Byte |
| Blue Castle Games |
| Blue Fang Games |
| Blue Omega Entertainment |
| Blue Planet Software |
| Blue Shift |
| Blue Tongue |
| Bluepoint Games |
| Blueside |
| Bohemia Interactive Studio |
| Bold Games |
| Born Ready Games |
| Brain in a Jar |
| Brainbox Games |
| BrainGame Publishing |
| Brash Entertainment |
| BreakAway Games |
| Breakthrough New |
| Budcat Creations |
| Buena Vista |
| BugBear Entertainment |
| Buka Entertainment |
| Bullfrog Productions |
| Bungie Studios |
| Bunkasha Publishing |
| Burut Software |
| Camelot Software Planning |
| Candygun Games |
| Capcom |
| Capybara Games |
| Carbonated Games |
| Career Software |
| Cat Daddy Games |
| Catnip Games |
| Cavia |
| CCP games |
| CCR |
| CD Projekt RED |
| cdv Software Entertainment USA |
| Cenega |
| Cerasus Media |
| Certain Affinity |
| Chair Entertainment Group |
| ChangYou.com |
| Chaos Concept |
| Chris Sawyer |
