Companies starting with I
- Ice Code Games
- Ice-Pick Lodge
- Iceberg Interactive
- Ichigoichie
- id Software
- Idea Factory
- IDEA Games
- Idle Games
- IGN
- Iiyama
- Ikea
- ILCA (I Love Computer Art)
- IllFonic
- Illwinter Game Design
- Image & Form
- IMGN.pro
- Impossible
- Improbable
- Inbetween Games
- Incus Games
- Indefatigable
- Indie Asylum
- indie.io
- Infinitap Games
- Infinite Fall
- Infinite Interactive
- Infinity Ward
- Inflexion Games
- Infogrames
- Ingame Studios
- inkle
- InnerSloth
- InnerspaceVR
- Innocn
- Innovina
- insertdisc5
- Insomniac Games
- Integral
- Intel
- Intelligible Games
- Intercept
- Interceptor Entertainment
- Interdimensional Games
- Interior Night
- Interplay
- InterWave Studios
- Intravenous Software
- Introversion Software
- inXile Entertainment
- IO Interactive
- iolaCorp Studio
- Iphigames
- Irdeto
- Iridium Studios
- Iron Galaxy Studios
- Iron Gate Studio
- Iron Lore Entertainment
- Iron Tower Studio
- Ironbird Creations
- Ironclad Games
- Ironmace
- IronMonkey Studios
- IronOak Games
- Ironwood Studios
- Irrational Games
- Irregular Corporation
- Ishtar Games
- Itch.io
- Ivory Tower
- Ivy Road