| Name | Unified registration number |
|---|---|
| Smartecon SIA | 40203393648 |
| SmartPosti SIA | 40003567822 |
| Solar Channel SIA | 40203393347 |
| SOLAR SIA | 40203418903 |
| Solar Surfers SIA | 40203393332 |
| Somfy SIA | 40003592891 |
| Sonos Europe B.V. | NL32107881 |
| Sonova Consumer Hearing GmbH | DEHRB221905 |
| Sony Europe B.V. filiāle Latvia | 50103291641 |
| "Spector light" SIA | 40103952456 |
| SPECTRO Analytical Instruments GmbH | DEHRB1876 |
| SPOT Service Parts Or Tools GmbH | DEHRB519941 |
| SPV Kurzeme SIA | 50203401951 |
| Stanford Music Latvia SIA | 40103974186 |
| STRABAG SIA | 49203002756 |
| STROPS Technologies, SIA | 40103882290 |
| SUMUP LIMITED | IE505893 |
| Sunergia SIA | 40203371157 |
| Sunly Land Solar 1 SIA | 40203401860 |
| Sunly Land Solar 2 SIA | 40203403221 |