| Cyanide Studio | Developer | |
| Cyanide Studios | Developer | |
| Cyanide Tea | Developer | |
| CyanidePanda | Developer | |
| Cyaygel | Developer | |
| Cybadyne (Christian F. Urquhart, Mike Smith) | Developer | |
| Cybee | Developer | |
| Cybele Productions | DeveloperPublisher | |
| Cybelle | DeveloperPublisher | |
| Cyber Chroma | Developer | |
| Cyber Front | DeveloperPublisher | |
| Cyber Group Studios | Developer | |
| Cyber Insidious | Developer | |
| Cyber Planet Interactive | Developer | |
| Cyber Rhino Studios | DeveloperPublisher | |
| Cyber Twilight | Developer | |
| CyberApex | Developer | |
| CyberCoder | Developer | |
| CyberConnect2 | DeveloperPublisher | |
| CyberDoesStuff | Developer | |
| CyberForte | Developer | |
| CyberFront | DeveloperPublisher | |
| CyberFront Corporation | Publisher | |
| CyberFrontJP | Publisher | |
| CyberFrontKO | Publisher | |
| CyberGunk | Developer | |
| CyberLab Studios | Developer | |
| CyberPRDX | Developer | |
| CyberPlanet Interactive | Developer | |
| CyberStep | DeveloperPublisher | |
| CyberTobie | Developer | |
| CyberVision | Developer | |
| Cyberbee | Developer | |
| Cyberconnect2 | Developer | |
| Cyberdreams | DeveloperPublisher | |
| Cyberdyne Systems | Developer | |
| Cyberekt | Developer | |
| Cyberevolver_Studios | Developer | |
| Cyberflix | DeveloperPublisher | |
| Cyberfly | Developer | |
| Cyberfront | DeveloperPublisher | |
| Cyberfront Corporation | Publisher | |
| Cyberfront Korea | Developer | |
| Cyberfront Korea Corporation | Publisher | |
| Cybergnose Café | Developer | |
| Cyberius Dei | Developer | |
| Cyberlore Studios | Developer | |
| Cybernate | Developer | |
| Cybernetic Corporation | Developer | |
| Cybernetic Walrus | Developer | |