| Aullwen | Developer | |
| Aumni | Developer | |
| Aura Studios | Developer | |
| Auralis Creations | Developer | |
| Auran | Developer | |
| Aurel | Developer | |
| Aurelien Mary | Developer | |
| Aurelien Regard | Developer | |
| Aurii | Developer | |
| Aurion_X | Developer | |
| Auroch Digital | DeveloperPublisher | |
| Aurona | Developer | |
| Aurona Games | Developer | |
| Aurora Productions | Developer | |
| Aurora22 | Developer | |
| Aurora_Sanguine | Developer | |
| Auroras Winter | Developer | |
| Aurore | Developer | |
| Auroriax (Tom H.) | Developer | |
| Aurum Dust | Developer | |
| AurumDust | Developer | |
| AurySystem | Developer | |
| Aurélien Dos Santos | Developer | |
| Aurélien Gâteau | Developer | |
| Aurélien Lachat | Developer | |
| Aurélien VALADE | Developer | |
| Aus.Lissajous | Developer | |
| Ausstein | Developer | |
| Austellus | Developer | |
| Austin | Developer | |
| Austin Long | Developer | |
| Austin Rogers | Developer | |
| Austin Walker | Developer | |
| Austin Willoughby | Developer | |
| Austin-Chau | Developer | |
| AustralianLemon | Developer | |
| Authentics | Developer | |
| AuthorBlue | Developer | |
| Auto Generated Bitsys | Developer | |
| AutoHit Games | Developer | |
| Autofire | Developer | |
| Autoklub Rijeka | Publisher | |
| Automata UK | Publisher | |
| Automated Simulations | DeveloperPublisher | |
| Automated Simulations Inc. | DeveloperPublisher | |
| Autumn Fall Studio | Developer | |
| Autumn Games | Publisher | |
| Autumn Moon Entertainment | Developer | |
| Autumn Rain | Developer | |
| AutumnWyvern | Developer | |
| Autumnotopia | Developer | |
| Auxiliary Power | DeveloperPublisher | |
| Avalan | Developer | |
| Avalanche Productions | Publisher | |
| Avalanche Software | Developer | |
| Avalanche Software LLC | Developer | |
| Avalanche Studios | DeveloperPublisher | |
| Avalon Hill | DeveloperPublisher | |
| Avalon Hill Software | Publisher | |
| Avalon Interactive | Publisher | |
| Avalon InteractiveEU | Publisher | |
| Avalon InteractivePAL | Publisher | |
| Avanquest | DeveloperPublisher | |
| Avanquest Software | DeveloperPublisher | |
| Avant-Garde | DeveloperPublisher | |
| Avant-Garde Creations | Publisher | |
| AvantBard | Developer | |
| Avantage Software | Publisher | |
| Avantgardistic Arts | Developer | |
| Avaria Corporation | Developer | |
| Avatar Nick | Developer | |
| AvatarK0 | Developer | |
| Aventuras AD | DeveloperPublisher | |
| Aventuriers Intérimaires | Developer | |
| Aventurine SA | Developer | |
| AverageGames | Developer | |
| AverageJo | Developer | |
| Avery Crimes | Developer | |
| Avery Holmes | Developer | |
| Averyator | Developer | |
| Aveuse | Developer | |
| Avi3ator | Developer | |
| Aviala | Developer | |
| Aviark13 | Developer | |
| Aviation001 | Developer | |
| Avicr | Developer | |
| AvidGame | Developer | |
| Avidity Studios | Developer | |
| Aville13 | Developer | |
| Avior | Developer | |
| AvishayA | Developer | |
| Avit | Developer | |
| Avit, Inc. | Developer | |
| Avit-Niigata | Developer | |
| Aviv | Developer | |
| Aviv Youker Harel | Developer | |
| Aviv_Jessie_Omri | Developer | |
| Avix Games | Developer | |
| AvoCavo | Developer | |
| AvoidVania | Developer | |