| Adriano Gomes da Silva | Developer | |
| Adriano Silva | Developer | |
| Adriano Veríssimo | Developer | |
| Adridle | Developer | |
| Adrielus | Developer | |
| Adrien Poncet | Developer | |
| Adrián Bayardi | Developer | |
| Adrián Calvo | Developer | |
| Adrián Corbalán | Developer | |
| Adroit Conceptions | Developer | |
| Adtberp | Developer | |
| Adult Swim Games | Publisher | |
| Adure | Developer | |
| Adure Games | Developer | |
| Advance | Publisher | |
| Advance Communication Co. | Developer | |
| Advance Communication Company | Developer | |
| Advance Games | Developer | |
| Advance Reality Interactive | Developer | |
| Advance Software | Publisher | |
| Advanced Interactive Games | Publisher | |
| Advanced Productions | DeveloperPublisher | |
| Adventions | Publisher | |
| Adventuras AD | DeveloperPublisher | |
| Adventure International | DeveloperPublisher | |
| Adventure Islands | Developer | |
| Adventure Planning Service | Developer | |
| Adventure Productions | Developer | |
| Adventure Soft | DeveloperPublisher | |
| AdventureBit | Developer | |
| AdventureBox | Developer | |
| AdventureByte | Developer | |
| Adventurer32 | Developer | |
| Adventuron | Developer | |
| AdverDomina | Developer | |
| Ady Studios™ | Developer | |
| Adynod | Developer | |
| Aeclain | Developer | |
| Aedian Glair | Developer | |
| AedifexGames | Developer | |
| Aeg | Developer | |
| Aegis Interactive Entertainment | Publisher | |
| Aegix Drakan | Developer | |
| Aehersin | Developer | |
| Aekai | Developer | |
| Aekashics | Developer | |
| Aemetta | Developer | |
| Aemetta and toasteater | Developer | |
| Aemyn Connolly | Developer | |
| Aeon Electronic Entertainment | Developer | |
| Aeonsparx Interactive | Developer | |
| Aergia | Developer | |
| Aeria | Publisher | |
| Aeria Games | Publisher | |
| Aeria Games & Entertainment | Publisher | |
| Aeria Games and Entertainment | Publisher | |
| Aerkaos | Developer | |
| Aero | Developer | |
| Aero&Zero | Developer | |
| AeroChow | Developer | |
| Aeromangus | Developer | |
| Aeroska | Developer | |
| Aerosoft | DeveloperPublisher | |
| Aerow | Developer | |
| Aerton | Developer | |
| Aeryne Wright | Developer | |
| Aescosaurus | Developer | |
| Aesth | Developer | |
| Aesthetic | Developer | |
| Aesthetic Accidents Atelier | Developer | |
| Aesthetic Studio | Developer | |
| AestheticGamer | Developer | |
| Aeternuxolus | Developer | |
| Aether Interactive | Developer | |
| Aetherbyte Studios | Developer | |
| Aetheric Games | Developer | |
| Aevek | Developer | |
| Aevi | Developer | |
| Afal | Developer | |
| Afely | Developer | |
| Afendar | Developer | |
| Affable Games | DeveloperPublisher | |
| Affander | Developer | |
| Affect | DeveloperPublisher | |
| Affect Boom | Developer | |
| Affect Co., Ltd | Developer | |
| Affinity Archives | Developer | |
| Affinixy | Developer | |
| Afkar Media | Developer | |
| Afrochick | Developer | |
| Afrojoe123 | Developer | |
| After Apocalypse | Developer | |
| After Icarus | Developer | |
| AfterHoursGameDev | Developer | |
| Afterburn | Developer | |
| Afterburner Studios | DeveloperPublisher | |
| AfterglowGames | Developer | |
| Aftermath | Developer | |
| Afterthought Studios | Developer | |
| Again Again | Publisher | |
| Against Gravity | DeveloperPublisher | |
| Agar | Developer | |
| Agar3s | Developer | |
| Agashi | Developer | |
| Agat Films & Cie | Developer | |
| Agate | Developer | |
| Agatsuma Entertainment | DeveloperPublisher | |
| Agecaf | Developer | |
| Agency Automation | Publisher | |
| Agenda | DeveloperPublisher | |
| Agens | Developer | |
| AgentAPM | Developer | |
| AgentNumberOne | Developer | |
| AgentXMan | Developer | |
| Agent_Mahoney | Developer | |
| Agetec | DeveloperPublisher | |
| Agetec Inc. | DeveloperPublisher | |
| Agetec Inc.EU,NA | Publisher | |
| Agetec Inc.NA | Publisher | |
| Agetec NA | Publisher | |
| Agetec, Inc. | Publisher | |
| AgetecEU | Publisher | |
| AgetecEU,NA | Publisher | |
| AgetecNA | Publisher | |
| AgetecPAL,NA | Publisher | |
| AgetecUS | Publisher | |
| Agger Interactive | Developer | |
| Aggressive Combustion | Developer | |
| Aggro Crab Games | Developer | |
| Aghmat | Developer | |
| Agile Drill Games | Developer | |
| AgileStudio | Developer | |
| Agua Hervida | Developer | |
| Agumix | DeveloperPublisher | |
| Agust Mani Joelsson | Developer | |
| Agustin0987 | Developer | |
| Agustinzero1 (ZGA Productions) | Developer | |
| Ah Young Joo | Developer | |
| AhSpike | Developer | |
| Aheartfulofgames | Developer | |
| Ahi-Rine | Developer | |
| Ahmad Jalal YT | Developer | |
| Ahmad Kalach | Developer | |
| Ahmed Ali | Developer | |
| Ahmed Elshazly | Developer | |
| Ahmed Khalifa (Amidos) | Developer | |
| Ahmed137 | Developer | |
| AhmedHaddaji | Developer | |
| AhmedMansy | Developer | |
| Ahmet Kamil Keleş | Developer | |
| Ahmet Yağız | Developer | |
| Ahmet Zahit Dönmez | Developer | |
| Ahnixware | Developer | |
| AhoGames | Developer | |
| Ahoy! GameStudio | Developer | |
| Ahr Ech | Developer | |
| Ahzed Studio | Developer | |
| Ai Space Production Committee | DeveloperPublisher | |
| AiLive | Developer | |
| Aiaz Marx | Developer | |
| AichDee | Developer | |
| Aichi | Developer | |
| Aicom | DeveloperPublisher | |
| Aicom (JP) | Publisher | |
| Aidan | Developer | |
| Aidan Markham | Developer | |
| Aidan Takami | Developer | |
| Aidan Walsh | Developer | |
| Aidin Zolghadr | Developer | |
| Aiet | Developer | |
| Aihasto | Developer | |
| Aik Beng | Developer | |
| Aikasa Collective | Developer | |
| AikonCWD | Developer | |
| Aiky | Developer | |
| Ail-Soft | Developer | |
| Ailten | Developer | |
| Aimception_Ale | Developer | |
| Aimee Williams | Developer | |
| Aiming Inc. | DeveloperPublisher | |
| Ainhur | Developer | |
| Air-N | Developer | |
| Airapport | Developer | |
| Airborne | DeveloperPublisher | |
| Airborne_Manatee | Developer | |
| Airdorf | Developer | |
| Airem | Developer | |
| Airline Software (Steven J. Howlett) | Developer | |
| Airodene | Developer | |
| Airship Syndicate | Developer | |
| Airstrip-One | Publisher | |
| Airsystem Tokyo | Developer | |
| Airtight Games | Developer | |
| Airtight Games, | Developer | |
| Airwave Adventure | Publisher | |
| Aisem | Developer | |
| Aisha AL-Thani | Developer | |
| Aishin | Developer | |
| Aisle 2 | Developer | |
| Aist | Developer | |