| Polaroid Therapeutics AG | |
| Polixis | |
| Polychrome S.à.r.l. | Geneva |
| PolyPeptide Group AG | |
| Polytech Ventures Holding | |
| Polytrona AG | Nidwalden |
| Pomzed Communication | Jura |
| Pool Informatik GmbH | St. Gallen |
| Posalux | |
| Poseidon Group | Ticino |
| Positioner S.A. | |
| Positrigo AG | |
| PostFinance S.A. | |
| Powatec GmbH | |
| Powerledger | |
| PowerMedia AG | Bern |
| PowerNet Informatik AG | Bern |
| PowerParts AG | Aargau |
| PPS Printer- & Plotterservice GmbH | Aargau |
| Pragma Agency | Geneva |
| Pragmatica AG | Zug |
| Praxinova AG | Thurgau |
| PreAnalytiX GmbH | |
| Preclin Biosystems AG | |
| PreComb Therapeutics AG | |
| Prem AI | |
| Premaccess S.A. | Fribourg |
| Presida Treuhand AG | St. Gallen |
| Prezenz S.à.r.l. | Geneva |
| PriceHubble | |
| Primelco Visual Data AG | Zug |
| Primetrack AG | Basel-Stadt |
| Primex Pharmaceuticals | |
| Priosh PharmaChem AG | |
| PRISMA Software | |
| Prisme Solutions Informatiques S.A. | Fribourg |
| PrivadoVPN | |
| Privately S.A. | Vaud |
| Pro Data Service AG | Zurich |
| Pro-Data LGI S.A. | Geneva |
| Proaudio Consulting GmbH | Zurich |
| Procab Studio S.A. | Geneva |
| Procadesign AG | Zurich |
| ProcessServices AG | Zug |
| Procivis AG | |
| proClick | Bern |
| ProConcept S.A. | |
| ProConsult | Aargau |
| ProDecipher | |
| Prodecor | Basel-Landschaft |