| www | oberwiler-maert.ch | ch | 1 |
| .observatoire-mont-soleil.ch | ch | 1 |
| www | www.obst-gemuese.ch | ch | 1 |
| www | www.obwaldnerzeitung.ch | ch | 1 |
| .occ-lengnau.ch | ch | 2 |
| www | occo-seeland.ch | ch | 1 |
| oceanclubstbarths.com | com | 1 |
| www | www.oceans4.ch | ch | 1 |
| www | www.ochsenbein-gartenbau.ch | ch | 1 |
| www | www.ochsnerhockey.ch | ch | 1 |
| www | www.ochsner-shoes.ch | ch | 3 |
| www | www.ocn.ch | ch | 3 |
| .ocrb.ch | ch | 1 |
| www | www.ocrb.ch | ch | 1 |
| .octotronic.com | com | 1 |
| .ocularis.ch | ch | 1 |
| www | www.ocularis.ch | ch | 2 |
| www | www.odacloud.ch | ch | 1 |
| www | www.oda-gesundheit-bern.ch | ch | 1 |
| oda-kt.ch | ch | 1 |