- NILT Switzerland GmbH
- Nine Internet Solutions AG
- Nine United Brand & Design AG
- Nitrochemie Wimmis AG
- Nivarox
- NKF
- NL ENERGIE
- Noah Residence AG
- NOBAG Nobs Engineering AG
- Nobel Biocare Service AG
- Nobel Biocare Services AG
- NOBEL Pharma Schweiz AG
- NOE-Schaltechnik
- noimos AG
- noimos ag
- noimos AG (an AXA company)
- Nolato Treff AG
- nolax AG
- Noldin Immobilien AG
- NOMAD
- Nomady AG
- Nomasis AG
- Nomizo GmbH
- Nomura Bank (Switzerland) Ltd.
- Non Communicable Diseases Alliance
- Non-disclosed
- NonStop Consulting
- NonStop Gym SA
- Nord-Lock AG
- Nordcloud, an IBM company
- Nordland Holding Europe GmbH, Bad Homburg, Zweigniederlassung Pfäffikon
- Nordmann Switzerland AG
- Nordstein AG
- Norm Aufzüge AG Bern
- Normet International Ltd.
- NorthC Schweiz AG
- Northern Trust AG
- Noser Engineering AG
- Notariat Thomi
- Notariat, Grundbuch- und Konkursamt Winterthur-Altstadt
- Nothing AG
- Notterkran AG
- Notz Metall AG
- Nouvag AG
- Nouvelle Page
- Nova Funk Engineering AG
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