| ID | Name | Type |
|---|---|---|
| #15860 | Janet Whittaker | + |
| #6882 | Janez Jaklic | + |
| #6883 | Janez Kanic | + |
| #6884 | Jani Kovacic | + |
| #20112 | Janko Mršić-Flögel | + |
| #22898 | Janko Stamenovic | + |
| #6885 | Jankor | ? |
| #6886 | Janos Szinetar | + |
| #6887 | Jansoft | Z |
| #6888 | Janusz Gajdecki | + |
| #6889 | Janusz Gajewicz | + |
| #6890 | Janusz Kuczynski | + |
| #6891 | Janusz Zietal | + |
| #20255 | Januš Drózd | + |
| #6892 | Jao Ilyn | + |
| #6893 | Japan Capsule Computers | Z |
| #6894 | Jape Software | Z |
| #6895 | Jara da Zimmermann | + |
| #20791 | Jarasoft | - |
| #19209 | JardaSoft | P |