| Big Fish Studios | Developer | |
| Big Five Software | DeveloperPublisher | |
| Big Green Creatures | Developer | |
| Big Green Pillow | Developer | |
| Big Grub | DeveloperPublisher | |
| Big Head Games | Publisher | |
| Big Head Games Ltd. | Developer | |
| Big Heart Production | Developer | |
| Big Huge Games | Developer | |
| Big Jimmy | Developer | |
| Big John Games | DeveloperPublisher | |
| Big Mess | Developer | |
| Big Pancake Norton | Developer | |
| Big Pixel Studios | Developer | |
| Big Red Button Entertainment | Developer | |
| Big Red Software | Developer | |
| Big Red Software (David Spicer, Jason Brashill, Allister Brimble) | Developer | |
| Big Red Software (Jas C. Brooke) | Developer | |
| Big Red Software (Nick Thompson, Shaun McClure, Peter J. Ranson) | Developer | |
| Big Red Software (Paul Griffiths, Michael A. Sanderson, Allister Brimble) | Developer | |
| Big Red Software (R Fred Williams, Neal Vincent) | Developer | |
| Big Red Software (R Fred Williams, Pete Ranson) | Developer | |
| Big Red Software (R Fred Williams, Peter J. Ranson, Chris Graham, Allister Brimble) | Developer | |
| Big Red Software (R Fred Williams, Peter J. Ranson, Chris Graham, Lyndon Sharp) | Developer | |
| Big Red Software (R. Fred Williams, Peter J. Ranson, Chris Graham, Allister Brimble) | Developer | |
| Big Red Software (The Oliver Twins, Peter J. Ranson, Chris Graham) | Developer | |
| Big Robot Ltd | Developer | |
| Big Roy | Developer | |
| Big Sandwich Games | Developer | |
| Big Seat Studios | Developer | |
| Big Sky Interactive | Developer | |
| Big Sky Software | Developer | |
| Big Southerly Games | Developer | |
| Big Splash Games LLC | Developer | |
| Big Sugar | Publisher | |
| Big Three Games | Developer | |
| Big Time Software | Developer | |
| Big Top Productions | Developer | |
| Big Trash Games | Developer | |
| Big Way | DeveloperPublisher | |
| Big Way Games | Developer | |
| Big-Nugget Games | Developer | |
| BigBen Interactive | DeveloperPublisher | |
| BigBossErndog | Developer | |
| BigBread | Developer | |
| BigBrik Games | Developer | |
| BigBuckBunny | Developer | |
| BigBuffBear | Developer | |
| BigCookie0114 | Developer | |
| BigDomTheExpert | Developer | |
| BigFoot1709 | Developer | |
| BigGame | Developer | |
| BigHandInSky | Developer | |
| BigMiniGeek | Developer | |
| BigMoon Entertainment | Publisher | |
| BigMountainGames | Developer | |
| BigMuscleWill | Developer | |
| BigPapaOcnarf123 | Developer | |
| BigPark | Developer | |
| BigPlayBen | Developer | |
| BigPotato | Developer | |
| BigSteps | Developer | |
| BigStompyRobots | Developer | |
| Biga Boom | Developer | |
| Bigaston | Developer | |
| Bigbadbackstab | Developer | |
| Bigben Interactive | DeveloperPublisher | |
| Bigben Interactive S.A. | Publisher | |
| Bigben InteractiveEU | Publisher | |
| BigcatStudios | Developer | |
| Bigeishe | Developer | |
| BiggerByteProductions | Developer | |
| Biggest Robot Productions | Developer | |
| Bigmonte Studios | Developer | |
| Bigmoon Entertainment | DeveloperPublisher | |
| Bigosaur | DeveloperPublisher | |
| Bigowls Edition | Developer | |
| Bigway | Developer | |
| Bigzur | Developer | |
| Bigzur Games | DeveloperPublisher | |
| Biim | Developer | |
| Bika-chan | Developer | |
| Biker_Dad | Developer | |
| Bilge Kaan | Developer | |
| Bilibili | DeveloperPublisher | |
| Bill | Developer | |
| Bill Basham | Developer | |
| Bill Budge | Developer | |
| Bill Dunlevy and Douglas Frayer | Developer | |
| Bill Harbison | Developer | |
| Bill Piazza | Developer | |
| Bill Williams | Developer | |
| Bill Witts | Developer | |
| Bill t'ergiest | Developer | |
| BillWilson | Developer | |
| BillehBawb | Developer | |
| Billhilly | Developer | |
| Billiams | Developer | |
| Billie Bust Up | Developer | |
| Billiken Soft | Developer | |