| swiss-support.net | Zurich |
| Swiss-Traffic | Vaud |
| SwissBanner.net | Geneva |
| Swissbit AG | St. Gallen |
| Swisscad | Geneva |
| SwissCenter | Vaud |
| Swisscom S.A. | Bern |
| Swisscom Ventures AG | |
| Swisscows AG | |
| SwissDevJobs AG | |
| Swissdigital | Bern |
| SwissDrones | Zurich |
| swisseasy.net GmbH | Grisons |
| SwissHelios, LLC | |
| SwissIX Internet Exchange | Zurich |
| Swisslinux | Vaud |
| Swisslinx AG | |
| Swisslog Holding AG | |
| swissmail.org | Zurich |
| SwissNetSolutions | Schwyz |
| Swissphone Wireless AG | Zurich |
| Swisspod | |
| Swisspreneur | |
| SwissQ Consulting AG | Zurich |
| Swissquote | |
| SwissSign | Zurich |
| SwissStartups.org | |
| Swissteach AG | |
| Swissto12 | |
| SwissWeb AG | Zurich |
| Swistor | |
| Switch | Zurich |
| Switchover AG | Ticino |
| Switchplus AG | Zurich |
| Switzerland Global Enterprise | |
| Switzerland Innovation | |
| Switzerland Innovation Park Ost AG | |
| Switzernet S.à.r.l. | Vaud |
| Swixx Biopharma S.A. | |
| SWOODOO | |
| SWT GmbH | Thurgau |
| Sygnum | |
| Sylon Hosting | Basel-Stadt |
| Symfact | Fribourg |
| Symmetryk.com GmbH | Zug |
| SynDermix AG | |
| Synendos Therapeutics AG | |
| Synergy Quantum | |
| SynergySoft | |
| Synexsys | Vaud |