| ID | Name | Type |
|---|---|---|
| #14232 | TNT Software | Z |
| #14233 | TNYsoft | Z |
| #19445 | TOKU | - |
| #19446 | TOKU Soft | P |
| #14234 | TPA Computer Services | Z |
| #14235 | TR-Soft | Z |
| #14236 | TRC Software | Z |
| #19278 | TRIPS | P |
| #21786 | TRIXS | - |
| #17809 | TRP Software | S |
| #14237 | TRT Design | Z |
| #14238 | TSB | Z |
| #14239 | TSF's Workshop PLC | Z |
| #14240 | TSK | ? |
| #17906 | TSR Hobbies | P |
| #14242 | TSR Inc | Z |
| #17810 | TTT Computer Supplies | A |
| #14244 | TV Choice | Z |
| #14245 | TV Games | P |
| #14246 | TV Services of Cambridge | R |