We have so far registered 19,632 shipping companies
| Name | Founded | | Peter Herlofson, Larvik | |
| Peter Jebsen, Bergen | |
| Peter Joachim Busch, Risør | |
| Peter Kock, Fredrikstad | |
| Peter L. Moldskred, Ulsteinvik | |
| Peter Magnus Petersen, Porsgrunn | |
| Peter Mohn, Bergen | |
| Peter og Birger Lund, Vik | |
| Peter Pettersen, Kristiania | |
| Peter S. Brandal, Ålesund | |
| Peter Schelderup, Bodø | |
| Petersen & Holst, Holmestrand | |
| Petersen, P.A., Stavanger | |
| Peter Skarbøvig & Johan Remmen, Ålesund | |
| Peter Skarbøvig, Ålesund | |
| Peterson & Wessel, Drammen | |
| Peter Th. Buschmann, Aure, Kristiansund | |
| Peter Thorvildsen, Tønsberg | |
| Peter Tschudi (y) Rederi, Tønsberg | |
| Peter Wessel, Horten | |
| Peter Y. Berg, Drammen | |
| Peter Y. Berg, Oslo | |
| Petra Ulriksen, Florø | |
| Petrobulk Carriers A/S, Oslo | |
| Petrojarl Tanker A/S, Stavanger | |
