| ID | Name | Type |
|---|---|---|
| #6059 | IKO & RGSoft | Z |
| #18768 | IKS | P |
| #19817 | ILFORD | P |
| #6060 | IMA Soft | Z |
| #6061 | IMP | - |
| #6062 | IMS Software | P |
| #22429 | IN-Company | P |
| #6063 | INDUG | U |
| #6064 | INEP | ? |
| #6065 | INFO Soft | Z |
| #6067 | IPC Magazines Ltd | Z |
| #6068 | IQ Services | Z |
| #6069 | ISC Ltd | Z |
| #6070 | ISHMA | ? |
| #17353 | ISM | S |
| #6071 | ISS | ? |
| #17354 | IT (Western) Electronics | R |
| #17355 | IT's | S |
| #23166 | ITHO Games | P |
| #6072 | ITL Kathmill Ltd | Z |