| Kenes Group | |
| Kentec GmbH | Zug |
| Kern Concept AG | Appenzell Ausserrhoden |
| Kesako Internet Solutions | Vaud |
| KeyCDN | |
| Kickoff Media S.à.r.l. | Neuchâtel |
| Kickstart Innovation | |
| KickTheMap | |
| Kido Dynamics | |
| KingX Consulting GmbH | Zurich |
| KISS Technologies GmbH | Zurich |
| KISSoft AG | Zurich |
| Klarpay AG | |
| KLAUCK GmbH | |
| Kleap | |
| Klepsydra Technologies AG | |
| Klewel S.A. | |
| Klink GmbH | Bern |
| Kloon GmbH | Zug |
| KMD-Design GmbH | Zurich |
| KMS AG | Lucerne |
| KMU- InternetDienste | St. Gallen |
| Knime AG | Zurich |
| Kniv-Web GmbH | Schwyz |
| Koa Switzerland AG | |
| Koelliker Büroautomation AG | Vaud |
| Komax Holding AG | |
| Komgo | Geneva |
| Komgo | |
| KOMP-ACT S.A. | |
| Konapharma AG | |
| Konplan | Zug |
| Kraftwerk Zürich | |
| Kreativ Media GmbH | Zurich |
| Kroll-Software | Uri |
| KSF Technologies AG | Zurich |
| KUBLI data | Thurgau |
| Kudelski Security | Vaud |
| Kuhn Informatik AG | Aargau |
| Küng Computer | Schaffhausen |
| Kunse.com | Aargau |
| Kuros Biosciences AG | |
| kwe.li GmbH | St. Gallen |
| Kyan Health AG | |
| LA Partner GmbH | Lucerne |
| lab4web.com | Zurich |
| Labatec Pharma S.A. | |
| LabMinds | |
| Laevoroc Oncology AG | |
| LAKE Solutions AG | Zurich |