- ECOTEC Environnement SA
- ECOVIS ws&p ag
- ECSA - Easy Stop Porta Ticino Coldrerio
- ECSA - Easy Stop Stalvedro Airolo
- ECSA Chemicals AG
- ECSA Chemicals AG Flawil (SG)
- Ecsa Chemicals SA
- ECSA Chemicals SA
- ECSA Energy SA
- ECSA Group
- ECSA Italia Desio
- ECSA Maintenance SA
- Edelmann Ingenieurbüro AG
- Eden café restaurant (dans centre Migros)
- Eden Treuhand AG
- Edge Operations SA
- Edgelab
- edi Entsorgungsdienste AG
- EDIFEA
- EDILCERAMIC SA
- Editions du Parvis SA
- EDK
- Edorex AG
- EDP Personalberatung GmbH
- Educa
- EDVPOINT AG
- eeproperty SA
- ef cooling Ernst H. Furrer AG
- EF Education
- EF Education First
- EF Education SA
- Effektiv Lernen
- Efficient IT Solutions GmbH
- Effista AG
- EFG Bank AG
- EFG Bank Genève
- Egger Frères SNC
- Egli Baumanagement
- EGLI INTERNATIONAL AG
- Egli's frische Küchenkräuter AG
- Eglise Réformée Vaudoise
- EGLO Schweiz AG
- EgoKiefer AG
- EGOTRACE
- Egro Industrials Systems AG
- Egro Suisse AG
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