| Aisystem Tokyo | DeveloperPublisher | |
| Aitem | Developer | |
| Aitor López | Developer | |
| Aixin | Developer | |
| Aizome | Developer | |
| Aj_W | Developer | |
| Ajané | Developer | |
| Ajeb | Developer | |
| Ajey Pandey | Developer | |
| Ajinomoto | Publisher | |
| Ajirog | Developer | |
| Ajvar Studio | Developer | |
| Aka Manto | Developer | |
| Akabaka | Developer | |
| Akabean | Developer | |
| Akabeisoft2 | DeveloperPublisher | |
| Akai Heya Satsujin | Developer | |
| Akaido Arcade Systems (Gavin Wade, Chris Edwards, David R. Cann) | Developer | |
| Akamis | Developer | |
| Akanthaur | Developer | |
| Akaoni Studio | DeveloperPublisher | |
| Akapaya | Developer | |
| Akatsuki Works | DeveloperPublisher | |
| AkdumanDev | Developer | |
| Ake Anderson | Developer | |
| Ake Andersson | Developer | |
| Ake Apps | Developer | |
| Akean | Developer | |
| Akella | DeveloperPublisher | |
| Akemi | Developer | |
| Aki Corp. | Developer | |
| Aki Corporation | DeveloperPublisher | |
| Akies Games | DeveloperPublisher | |
| Akimbo Games | Developer | |
| Akimi Games | Developer | |
| AkioKami | Developer | |
| Akip | Developer | |
| Akipo | Developer | |
| AkiroDev | Developer | |
| Akkara | Developer | |
| Aklom | Developer | |
| Aksel Englund | Developer | |
| Akselmo | Developer | |
| Akseru | Developer | |
| Akshansh | Developer | |
| Akshay Goel | Developer | |
| Akshay Rajput | Developer | |
| Akssus | Developer | |
| Aksys Games | DeveloperPublisher | |
| Aksys GamesNA | Publisher | |
| Akthanon Games | Developer | |
| Akua | Developer | |
| Akubi79 | Developer | |
| Akuirako | Developer | |
| Akume | Developer | |
| AkumiOnBass | Developer | |
| Akumu Games | Developer | |
| Akuno | Developer | |
| Akupara Games | DeveloperPublisher | |
| Akupara Jams | Developer | |
| Akuro | Developer | |
| Akusan | Developer | |
| Akw3l | Developer | |
| Akynna | Developer | |
| Akyon | Developer | |
| Al Baker & Associates | Developer | |
| Al Baker and Associates | Developer | |
| Al From Al's Toy Barn | Developer | |
| Al Heck | Developer | |
| Al J. Jiménez | Developer | |
| Al Lowe | Developer | |
| Al09rt45 | Developer | |
| AlKau | Developer | |
| AlaBaba | Developer | |
| Alabataye Prod | Developer | |
| Alakay | Developer | |
| Alakotila | Developer | |
| Alakse | Developer | |
| Alamantus GameDev | Developer | |
| Alamot Software | Developer | |
| Alan Aragón Lancharro | Developer | |
| Alan Beyersdorf | Developer | |
| Alan Blake | Developer | |
| Alan Edwardes | Developer | |
| Alan Elwood | Developer | |
| Alan Farmer | Developer | |
| Alan Grier | Developer | |
| Alan J. Clayton | Developer | |
| Alan Jardine | Developer | |
| Alan Laird | Developer | |
| Alan M. Boyd | Developer | |
| Alan Meiss | Developer | |
| Alan Merell & Eric Knopp | Developer | |
| Alan Rawkins | Developer | |
| Alan Silva | Developer | |
| Alan Stewart | Developer | |
| Alan Tomkins | Developer | |
| Alan Z. Jones | Developer | |
| Alan Zeldin | Developer | |
| Alan Zhang | Developer | |