| Abréviation | Désignation | |
|---|---|---|
| EWS | Eifel-Westerwald-Sieg (HE/NW/RP), Dieselnetz Eifel-Westerwald-Sieg (Allemand) | franchise / concession |
| EWS | English, Welsh & Scottish Railway, English Welsh & Scottish Railway Holdings Ltd. (Anglais) | entreprise ferroviaire |