- 2K Sports (Kush Games)
- 2k Games
- Action Pants Inc
- Activision
- Autumn Moon Ent.
- Apple - Search for "Games"
- Bedlam Games
- Big Fish Studios
- Big Huge Games
- Big Stage
- BioWare
- Blizzard Ent.
- Bottle Rocket
- Breakaway Games
- Budcat Creations
- Buzz Monkey Software
- Clear Crown Studios
- Collision Studios
- Cryptic Studios
- Cyan Worlds
- Day One Studios
- Demiurge Studios
- Desntineer
- Disney Interactive Studios
- Edge of Reality
- Eidos Interactive
- Electronic Arts
- Emergent Game Technologies
- Far Sight Studios
- Firaxis Games
- Firebrand Games
- Flagship Studios
- Foundation 9 Ent.
- Game Loft
- Gas Powered Games
- Gearbox Software
- Hands On Mobile
- Harmonix Music Systems
- Helixe Games (THQ)
- High Moon Studios
- High Voltage Software
- Hydrogen Whiskey Studios
- Hyperpia
- Human Head Studios
- Icarus Studios
- Idol Minds
- Infinity Ward
- Insomniac Games
- Just Leap In
- K2 Network
- Kaos Studios
- Liquid Dragon Studios
- Lucas Arts
- Luxoflux (Activision)
- Media Molecule
- Method Solutions
- Microsoft Games
- Midway Games
- Mind Control Software
- Monolith (Warner Bro's)
- Motion Theory
- NC Soft
- Nintendo of America
- Nexon
- Nihilistic
- Novint
- Obsidian Ent.
- Pandemic Studios
- Petroglyph Games
- Point of View
- Pronto Games
- Rainbow Studios
- Raven Software
- Realtime Associates
- Realtime Worlds
- Red Storm Ent.
- Rocketon
- Sony Online Ent.
- S2 Games
- Schell Games
- Screen Life
- Secret Level (Sega)
- Sega of America
- Shabba Games (Activision)
- Sierra Online (Vivendi)
- Singapore-MIT Gambit Game Lab
- Sony Computer Ent. America
- Spark Unlimited
- SuperVillian Studios
- Technicolor (Games Division)
- TimeGate Studios
- Total Immersion Software
- Toys for Bob
- Treyarch
- Trilogy Studios
- Turbine
- Vicarious Visions
- Vicious Cycle Software
- Virtual Heroes
- Vizual F/X Studios
- Volition
- WideLoad Games
- ZeniMax Online Studios
- Zipper Interactive
- ____Off-Shore Studios____
- Auran Studios - Australia
- Activision - Asia/Pacific
- Activision - Germany
- Activision - France
- Activision - UK
- Activision - Spain
- A2M - Canada
- Bedlam Studios - Canada
- BioWare - Canada
- Black Rock Studio - UK
- Blitz Games - UK
- Blue Castle Games - Canada
- CipSoft Online Ent. - Germany
- Deadline Games - Denmark
- Electronic Arts - Canada
- Eurocom Ent.- UK
- Firebrand Games - Scotland
- Game Loft- Multiple Locations
- Massive Ent. - Sweden
- Nexon - Japan
- Nintendo of Canada
- Nintendo of Europe - UK
- Pandemic Studios - Australia
- Pseudo Interactive - Canada
- Pyro Studios - Spain
- Radical Ent. - Canada
- Rare Limited (Microsoft) - UK
- Swordfish Studios - UK
- Spellborn NV - Netherlands
- Team Bondi - Australia
- UbiSoft - Canada
- Vogster Ent. - Russia
- Wanako Games (Sierra) - Chili
- Yager Development - Germany
