- Posse Management SA
- PostAuto AG
- Poste CH AG
- Poste CH SA
- Postfach
- PostFinance
- Poujoulat Switzerland SA
- Poussière de Lune
- Power Integrations Switzerland GmbH
- Powercoders
- POWERLAB AG
- PowerMeals
- PP PHARMACIE PRINCIPALE SA
- PPCmetrics AG
- PPD Europe (TJ)
- PPS Sportsgoods AG
- PQM Consulting AG
- PR/TICULAR GMBH
- PraderLosinger SA
- Pragmatiq sàrl
- Pratt & Whitney Aero Engines I
- Praxis am Grendelbach
- Praxis Berchtold
- Praxis Gleis 6
- Praxis Rebhalden GmbH
- Praxis Unique Therapy
- praxo SA
- Prebena AG
- Preci Health SA
- Preci-Health SA
- Preciflex SA
- Precipart SA
- Precision Engineering AG
- Precitec Vision GmbH & Co KG
- Predige SA
- Prediggo SA
- Prefera Immobilien AG
- Premotec GmbH
- Premotion GmbH
- PrePress & Multimedia AG
- Presspart AG
- Presto AG
- PRG Production Resource Group
- PRIKA HR & Pension AG
- Prime Food and Goods GmbH
- Primelco System Device AG
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