| Blue Planet Software | Developer | |
| Blue Print | DeveloperPublisher | |
| Blue Renderer Entertainment | Publisher | |
| Blue Renderer Production Studio | Developer | |
| Blue Ribbon | Publisher | |
| Blue Ribbon Software | DeveloperPublisher | |
| Blue Shift | Developer | |
| Blue Sky Productions | Developer | |
| Blue Sky Software | Developer | |
| Blue Sphere | Developer | |
| Blue Sphere Games | Developer | |
| Blue Stadium Games | Developer | |
| Blue Sunset Games | DeveloperPublisher | |
| Blue Tongue | Developer | |
| Blue Tongue Entertainment | Developer | |
| Blue Turtle | Developer | |
| Blue Wanderer | Developer | |
| Blue Wizard Digital | Developer | |
| Blue05 | Developer | |
| Blue2 | Developer | |
| Blue94 | Developer | |
| BlueAppaloosa | Developer | |
| BlueBee | Developer | |
| BlueBirb | Developer | |
| BlueBunnex | Developer | |
| BlueCandleGames | Developer | |
| BlueChronicle | Developer | |
| BlueG | Developer | |
| BlueHats | Developer | |
| BlueJackalope | Developer | |
| BlueKeyGames | Developer | |
| BlueLumin | Developer | |
| BlueMoon (Nebula Games) | Developer | |
| BlueMouseArcade | Developer | |
| BlueOctopus | Developer | |
| BlueOmenDev | Developer | |
| BlueRavenProductions | Developer | |
| BlueSky Software | Developer | |
| BlueSquirrel | Developer | |
| BlueTitanium | Developer | |
| BlueTreeStudios | Developer | |
| BlueWinds | Developer | |
| BlueWizard | Developer | |
| BlueWizard112 | Developer | |
| Blueberry Mauro | Developer | |
| Blueberry Soft | Developer | |
| Bluebomberultra | Developer | |
| Bluehell Productions | DeveloperPublisher | |
| Bluehole | Developer | |
| Bluemoon | Developer | |