Vi har så langt registrert 19 566 rederier
| Navn | Grunnlagt | | Wlhelmsen m/ fl. Drøbak | |
| W. Lyche, Halden | |
| Wm. Eiendom A/S, Kopervik | |
| W. M. Holby, Kristiania | |
| W. M. Kallevig, Arendal | |
| Wm. Kallevig & John Messel, Arendal | |
| W. M. Michaelsen, Filtvedt, Soon | |
| W. M. Michaelsen, Soon / Moss | |
| W. Mohn, Tønsberg | |
| W. Mordt, Fredikstad | |
| Wm. Troye, Bergen | |
| W. M. Trøye, Bergen | |
| Wm. Wright, Porsgrunn | |
| W. Neumanns Rederi, Bergen | |
| Woermann Line A.G. | |
| Wollert D. Krohn, Bergen | |
| Wollert Holsts Rederi A/S, Bergen | |
| Wollert Konow, Bergen | |
| Worrall, William, Chester, UK | |
| W. Petersen, Holmestrand | |
| W. P. Lorentzen, Kristiania | |
| W. R. Carpenter Oversea Shipping Ltd., Port Moresby, New Guinea | |
| W. Selmer, Trondheim | |
| W. S. Olsen, Kragerø | |
| W. Thomsen, Kristiansand | |
