| ID | Name | Type |
|---|---|---|
| #12894 | SPE | Z |
| #12895 | SPECTRAVENTURA | Z |
| #12896 | SPL | Z |
| #12897 | SPS Designs | Z |
| #12898 | SQ | - |
| #16383 | SQ Factor | Z |
| #12899 | SSA | ? |
| #16384 | SSC | ? |
| #17679 | SSH (Spectrum Software Hire) | X |
| #12900 | SSI Inc | Z |
| #19287 | SSPH2 | P |
| #12901 | SSS | ? |
| #21348 | SSun | + |
| #22628 | ST. K-Soft | + |
| #12902 | STAS | ? |
| #18595 | STD | - |
| #12903 | STD Software | Z |
| #12904 | STE | ? |
| #12905 | STEP Creative Group | Z |
| #12906 | STOP Informatica | Z |