| Groups (developers) | Abbr. | Country | City | Rating | |
|---|---|---|---|---|---|
| Homeless Ninja Robots | 0.00 ±0.0 | ||||
| HOOY-PROGRAM | Poland | Cracow (Kraków) | 0.00 ±0.0 | ||
| Houghton Mifflin Company | 0.00 ±0.0 | ||||
| Houston Atari Club | 0.00 ±0.0 | ||||
| Howard W. Sams & Co., Inc. | 0.00 ±0.0 | ||||
| Hudisoft | 0.00 ±0.0 | ||||
| Hyperon Soft | 0.00 ±0.0 | ||||
| Icon Design | 0.00 ±0.0 | ||||
| Iconographics, Inc. | 0.00 ±0.0 | ||||
| IDSI | 0.00 ±0.0 | ||||
| IGA Soft | 0.00 ±0.0 | ||||
| IJG, Inc. | 0.00 ±0.0 | ||||
| Illogic | 0.00 ±0.0 | ||||
| Illusions II | 0.00 ±0.0 | ||||
| Imagic | 0.00 ±0.0 | ||||
| Imagination Development Systems | 0.00 ±0.0 | ||||
| Imaginative Systems Software | 0.00 ±0.0 | ||||
| Incubus | 0.00 ±0.0 | ||||
| Indus Systems | United States | Chatsworth | 0.00 ±0.0 | ||
| Infernal Bytes | 0.00 ±0.0 |
