Companies starting with H
- H2 Interactive
- Hadoque
- Haemimont Games
- Hakababunko
- Half Asleep
- Half Mermaid
- Half Past Yellow
- Hammer & Ravens
- Hammer95
- Hammerfall Publishing
- Hammerpoint Interactive
- Hamster Corporation
- Handy Games
- Hangar 13
- Happion Labs
- Happy Accident Studios
- Happy Broccoli Games
- Happy Juice Games
- Happy Volcano
- Hardsuit Labs
- Harebrained Schemes
- Harmonix
- Harmonix Music Systems
- Harrison Lemke
- Hasbro
- Hawthorn Games
- Hazelight Studios
- HB Studios
- HBO
- Headcannon
- Headup Games
- Headware Games
- Heart Machine
- Heavy Lunch Studio LLC
- Hellbent Games
- Hello Games
- Her Interactive
- Herobeat Studios
- Herocraft
- HexWorks
- Hi-Rez Studios, Inc.
- Hibernian Workshop
- Hidden Path Entertainment
- Hidden Variable Studios
- Hiding Spot
- Hifiman
- High Moon Studios
- High North Studios
- High Voltage Software
- Highwire Games
- Hilltop Studios
- Hinterland
- Historia
- Hitbox Team
- Hitmaker
- Hobo Cat Games
- Hollow Ponds
- Holy Wow
- Honeyslug
- HongShou Studio
- Honor Code
- Hooded Horse
- HopFrog
- Hopoo Games
- Horizont Computergrafik
- Hothead Games
- Hotta Studio
- House House
- House of Tales
- Housemarque
- HoYoVerse
- HP
- htc
- Huawei
- Hudson
- Hudson Soft
- Hugecalf
- Hugecalf Studios
- Human Head Studios
- HumaNature Studios
- Humanoid Studios
- Humble
- Humble Bundle
- Humble Games
- Humble Hearts
- HuMoFish
- Hydravision Entertainment
- Hyper Games
- Hyper Luminal Games
- Hyperkin Inc.
- Hyperstrange
- HyperX
- Hypetrain Digital
- Hypnohead
- HYTE