| SHL Medical AG | |
| shop-24.cc GmbH | Bern |
| SIBEX AG | |
| Sidata AG | Thurgau |
| Siegfried Holding AG | |
| Sigrist Marketing-Services | Zurich |
| Sika AG | |
| Sileno AG | Schaffhausen |
| Silony Medical GmbH | |
| SIMORE | Vaud |
| Simpex Electronic AG | Zurich |
| Simply-More.ch | Solothurn |
| Simtec AG | Basel-Landschaft |
| Sintetica S.A. | |
| Sintetica S.A. | |
| SITA | |
| Sitepoint GmbH | Bern |
| Siteware Systems GmbH | Zurich |
| Siteweb.ch S.à.r.l. | Neuchâtel |
| SIX Digital Exchange | Zurich |
| SixSq S.à.r.l. | Geneva |
| Sketchin | |
| SKR Consulting S.A. | |
| Skribble AG | |
| SkyCell AG | |
| SLA Pharma AG | |
| Sleepiz AG | |
| SM Service Marketing AG | Lucerne |
| Smallpdf Ltd | |
| Smart Valor | |
| SmartCall | Schwyz |
| SmartCredit.io | |
| Smartec | Ticino |
| Smartec Services AG | Zug |
| Smartfactory AG | |
| SmartHelio | Vaud |
| Smartlink S.A. | |
| SmartWall | Zurich |
| SMC Computer AG | Zurich |
| SMC Swiss Management Center AG | |
| Smeetz S.A. | |
| Smeetz S.A. | |
| Smile Suisse S.A. | Vaud |
| Smile-Supporting | Aargau |
| Smixin | Bern |
| SMT Swiss Mains GmbH | Aargau |
| Snowflake Productions GmbH | Zurich |
| SO REAL Digital Twins AG | |
| Soberano-Sourcing GmbH | Bern |
| Société Générale in Switzerland | |