| ID | Name | Type |
|---|---|---|
| #5778 | Hartung-Gorre Verlag | ? |
| #22195 | Harvest | - |
| #5779 | Harvester | ? |
| #5780 | Harvey Lodder | ? |
| #22963 | Harvey Stroud | + |
| #17334 | Harvey's | S |
| #5781 | Hasbro Canada Inc | Z |
| #5782 | Hasbro Inc | Z |
| #5783 | Hasbro Industries Inc | Z |
| #21334 | Hash6Iron | P |
| #5784 | Hat Trick Productions | Z |
| #17335 | Haulsterm | B |
| #5785 | Haven Hardware | A |
| #5786 | Havensoft | Z |
| #5787 | Hawk | ? |
| #17336 | HawkWell Electronics | R |
| #17337 | Hawksoft | M |
| #5788 | Hawkwell Electronic Services | Z |
| #5789 | Hawnt Electronics Ltd | Z |
| #5790 | Hayden Book Company Inc | Z |