| Name | Region |
|---|---|
| Prodimex S.A. | Geneva |
| Productec S.A. | Jura |
| Professional Designers | |
| ProfiCircle | |
| ProjectQ | Zurich |
| Projess | Zurich |
| Prolectronic S.A. | Valais |
| ProLibre | Geneva |
| PropTech News | |
| Proreda GmbH | Schwyz |
| Prossel Software | Fribourg |
| Protecdata AG | Aargau |
| Proteomedix | |
| Proteusly | |
| Protocol S.A. | Vaud |
| Proton AG | |
| Proton Automation GmbH | Aargau |
| ProtonMail | Geneva |
| ProtonVPN | |
| ProXit S.A. | Bern |
| Pryv S.A. | |
| PS Consulting S.à.r.l. | Valais |
| PSiDEO S.A. | Geneva |
| Publicité Rutz | Bern |
| Pubwebmaster | Neuchâtel |
| Pureos Partners AG | |
| PWN | Zug |
| PWRstation Holding S.A. | |
| PXL Vision AG | |
| Pyango GmbH | |
| Pyromedia GmbH | Basel-Landschaft |
| Q Milk Schweiz | Ticino |
| Q-Integrity S.A. | |
| Qai Ventures AG | |
| QCAD.org | Obwalden |
| Qiibee | |
| Qnami | |
| Qnomx AG | |
| QOS.ch S.à.r.l. | Vaud |
| QOS.CH Sàrl | |
| QPQ AG | |
| QTF Switzerland AG | |
| Quadira Biosciences AG | |
| Quadrotech by Quest | |
| Qualidesign | Zurich |
| Qualimatik Software Partner AG | Schaffhausen |
| QualiVision AG | Zurich |
| Quant Technologies | |
| Quantis Informatik AG | Zug |
| Quantonomics GmbH |