| ID | Name | Type |
|---|---|---|
| #19426 | Orion Ostrava | P |
| #10605 | Orion Pictures Corporation | Z |
| #10607 | Orion Software [CZ] | Z |
| #10606 | Orion Software [UK] | Z |
| #10608 | Orion [1] | Z |
| #10609 | Orion [2] | Z |
| #10610 | Orion [3] | Z |
| #10611 | Orionsoft | Z |
| #21683 | Orla [Bearsden Primary 2023] | + |
| #10612 | Orlando Anibal Filadelfi | ? |
| #10613 | Orlando Araujo | + |
| #21386 | Orlando Duarte | + |
| #17997 | Orlando M. Pilchard | + |
| #10614 | Orme Electronics | H |
| #17589 | Oron Software | S |
| #10615 | Orpheus Ltd | P |
| #10616 | Orson | ? |
| #10617 | Orson Wylde | + |
| #17590 | Ortec Micro Computers | R |
| #10618 | Ortiz Lora | ? |