| ID | Name | Type |
|---|---|---|
| #18742 | Joerg Tochtenhagen LTD | P |
| #22822 | Joesg's ZX Spectrum Team | + |
| #19147 | Joesoft | P |
| #7173 | Joey | - |
| #7174 | Joey Headen | + |
| #21382 | Joey Latimer | + |
| #7175 | Joffa Smifff | - |
| #19457 | Joflof | - |
| #21092 | Jogofo | P |
| #16595 | Johan Elebrink | + |
| #7177 | Johan Koelman | + |
| #7178 | Johan Koning | + |
| #7179 | Johan Steyn | + |
| #7180 | Johann Hillreiner | + |
| #7181 | Johann Weilharter | + |
| #22416 | Johannes Brauckmann-Berger | + |
| #22469 | Johannes le Roux | + |
| #7182 | Johea | ? |
| #7184 | John A. Bell | + |
| #7185 | John A. Campbell | + |