Companies

Gremlin (Infogrames Sheffield House)

Gremlin Interactive Ltd.

Grezzo Co., Ltd.

GRIP Digital, s.r.o.

Groove Box Japan

GT Interactive Software

GT Interactive Software Corp.

Guerrilla Cambridge (Millennium Interactive)

Guerrilla Games

Haemimont Games

HAL Laboratory, Inc.

Halo Studios (343 Industries)

Halo Studios (formerly 343 Industries)

Harmonix Music Systems

Harmonix Music Systems, Inc.

Hazelight Studios AB

Heart Beat Co., Ltd.

Heavy Iron Studios

Heavy Iron Studios, Inc.

Hello Games Ltd

Herobeat Studios

Hi-Star Electronics

High Score Productions

High Voltage Software

High Voltage Software, Inc.

Hitmaker (Sega AM3)

Hitmaker Co., Ltd.

Hudson Soft Company, Limited

Human Entertainment

Human Co., Ltd.

Human Head Studios

id Software LLC

IE Institute Co., Ltd. (株式会社アイイーインスティテュート)

Ignition Entertainment

Iguana Entertainment

Image & Form Games

Image & Form International AB

Imagineer Co., Ltd.

Incredible Technologies

Indie Built (Access Software/Salt Lake Games Studio/Indie Games)

indieszero Co., Ltd.

Infogrames Entertainment SA

LIONA Interactive

Insomniac Games

Insomniac Games, Inc.

Intelligent Systems

Intelligent Systems Co., Ltd.

InterAct Accessories (STD Entertainment)

InterAct Accessories Inc.

InXile Entertainment

IO Interactive A/S

Irem Software Engineering, Inc.

Iron Galaxy Studios

Iron Lore Entertainment

Irrational Games

John Sands Electronics

Jorudan Co., Ltd. (ジョルダン株式会社)

JoWooD Entertainment AG

Juice Games (THQ Digital Studios Warrington)

Juice Games Ltd.

Jupiter Corp. (株式会社ジュピター)

KADOKAWA CORPORATION

Kalisto Entertainment

Kalisto Entertainment SA

Kaneko Co., Ltd.

Kaos (Softstone)

Kotobuki Solution Co., Ltd. (Kemco)

KID (Kindle Imagine Develop)

Kindle Imagine Develop (KID) Corp.

King Record Co., Ltd.