- P&J PETERSEN LTD.Active - Proposal to Strike off- 11351740 - Incorporated on 9 May 2018 
- PETERSEN STAINLESS RIGGING LIMITED- 01372922 - Incorporated on 12 June 1978 
- AJ PETERSEN LTDDisolved- SC748642 - Dissolved on 2 April 2024 
- PETERSENS LTD.- 03661059 - Incorporated on 4 November 1998 
- ARMSTRONG UEN LIMITEDLiquidation- 07050584 - Incorporated on 20 October 2009 
- LEIF CHRISTIAN BJERKNES PETERSEN- ODDLIVEIEN 25 B, HOENEFOSS, BUSKERUD, NORWAY, 3513 
- PETER CHRISTIAN NICOLAI PETERSEN- Born February 1980 - 823 SALISBURY HOUSE, 29 FINSBURY CIRCUS, LONDON, EC2M 5QQ 
- LEIF CHRISTIAN BJERKNES PETERSEN- Born December 1991 - ODDLIVEIEN 25 B, HOENEFOSS, BUSKERUD, NORWAY, 3513 
- A AND T PETERSEN LTD- 06174992 - Incorporated on 21 March 2007 
- TOM PETERSEN LTD- 08803370 - Incorporated on 5 December 2013 
- CARL F PETERSEN LTD- 02260474 - Incorporated on 19 May 1988 
- JJ PETERSEN AND H PETERSEN ISW SERVICES LTD- 15774103 - Incorporated on 12 June 2024 
- KIPUKA LTD.- 08395679 - Incorporated on 8 February 2013 
- LASSE PETERSEN LTDDisolved- 12248378 - Dissolved on 18 June 2024 
- PETERSEN OIKOS LTD- 14890396 - Incorporated on 24 May 2023 
- O S PETERSEN LIMITEDActive - Proposal to Strike off- 07399054 - Incorporated on 6 October 2010 
- PETERSEN IDEAS LTD- 09491880 - Incorporated on 16 March 2015 
- PETERSEN ENGINEERING LIMITED- 10734096 - Incorporated on 21 April 2017 
- PETERSEN MEDIA LIMITEDLiquidation- 04583926 - Incorporated on 7 November 2002 
- PETERSEN PARTNERSHIP LIMITED- 06408260 - Incorporated on 24 October 2007