| ID | Name | Type |
|---|---|---|
| #5909 | Hitsoft | Z |
| #22042 | Hlopotin Jeny | + |
| #5910 | Hobbit | ? |
| #5912 | Hobby Press S.A. | Z |
| #5913 | Hobby Software | Z |
| #5914 | Hobbyboard | H |
| #5915 | HoblSoft | Z |
| #5916 | Hodder & Stoughton Ltd | Z |
| #16670 | Hodkin Software | Z |
| #5917 | Hofacker Verlag | ? |
| #5918 | Hogroprog | ? |
| #5919 | Holburn Software | Z |
| #5920 | Holger Ahrens | + |
| #22492 | Holger Dierks | + |
| #5921 | Holger Dullin | + |
| #5922 | Holger Schlecht | + |
| #5923 | Holiday Brothers Ltd | Z |
| #17344 | Holistic Engineering | R |
| #5924 | Holly Products | Z |
| #5925 | Holmes McDougall Ltd | Z |