| ID | Name | Type |
|---|---|---|
| #9761 | Microtech Systems [1] | Z |
| #9762 | Microtech Systems [2] | Z |
| #9763 | Microtechnica | ? |
| #9764 | Microtext UK Ltd | Z |
| #21656 | Microtime | P |
| #17536 | Microtrix | R |
| #9765 | Microtrust Software | Z |
| #17537 | Microvision Software | S |
| #9766 | Microvitec Ltd | Z |
| #9767 | Microware | S |
| #17538 | Microwise | C |
| #9768 | Microwish | ? |
| #9769 | Microworkshops Ltd | Z |
| #17539 | Microworld Computer and Video Centre | H |
| #9770 | Microx | ? |
| #17540 | Mid-Wales Computer Centre | A |
| #17541 | Midas Marketing | M |
| #17542 | Midcomm International | R |
| #9771 | Midi | ? |
| #9772 | Midisoft [1] | Z |