| Yacuna AG | |
| Yannick Rochat | |
| YEP Digital Marketing GmbH | Thurgau |
| YES | |
| Ymmunobio | Basel-Stadt |
| Yokoy Switzerland Ltd | |
| YouHodler.com | |
| Youplus Holding AG | |
| YourShop S.A. | Vaud |
| Ypsomed AG | |
| YugaCell GmbH | |
| Yuneec | |
| Yves Bresson | Vaud |
| z creative labs GmbH | |
| Z3 Live Communication AG | |
| Zahner Electronic AG | St. Gallen |
| Zähringer Privatbank AG | |
| Zaphiro Technologies S.A. | |
| Zarattini & Co. S.A. | |
| Zattoo AG | Zurich |
| Zaugg Maschinenbau AG | Solothurn |
| Zdreicom AG | Zurich |
| Zedra | |
| Zehnplus | |
| Zeix AG | Zurich |
| ZENData | Geneva |
| Zenodo | |
| ZenOwn | |
| Zettaplan AG | Lucerne |
| Ziggurat GmbH | Zurich |
| Zimmerli Network Marketing & Consulting | Zurich |
| ZIP.ch S.A. | Vaud |
| Zitadel | |
| Zmedia.ch GmbH | Zurich |
| ZOOD | |
| Zope Hosting Services | Solothurn |
| zSerious | Zurich |
| ZSoil.PC | Vaud |
| ZSP Consulting AG | Zug |
| Zubisoft | Bern |
| Zuger Kantonalbank | |
| Zühlke Engineering AG | Zurich |
| Zur Rose Group AG | |
| Zürcher Handelskammer | |
| Zürcher Hochschule der Künste | |
| Zürcher Hochschule für Angewandte Wissenschaften | |
| Zürcher Kantonalbank | Zurich |
| Zürcher Landbank AG | |
| Zürich Friends of Haskell | Zurich |
| Zurich Insurance | |