- PETROS LIMITED- 07169075 - Incorporated on 25 February 2010 
- PETROS LIMITEDDissolved- 01091572 - Dissolved on 14 February 2012 
- PETROSTAR L.P.- LP019207 - Incorporated on 14 February 2018 
- PETROS LONDON LIMITED- 04711616 - Incorporated on 26 March 2003 
- PETROSCON LTDDisolved- 13819107 - Dissolved on 27 June 2023 
- PETROINSIGHTS LTDActive - Proposal to Strike off- SC456758 - Incorporated on 14 August 2013 
- KOHATU + PETROS LLP- OC357600 - Incorporated on 2 September 2010 
- PETROS (FLEET) LIMITEDActive - Proposal to Strike off- 08515906 - Incorporated on 3 May 2013 
- PETROS DIMOTSIS LTDDissolved- 11467331 - Dissolved on 27 August 2019 
- PETROSUD LTDActive - Proposal to Strike off- 08908562 - Incorporated on 24 February 2014 
- PETROSEC LTDActive - Proposal to Strike off- 07803160 - Incorporated on 10 October 2011 
- PETROSAN LTD- 16388620 - Incorporated on 15 April 2025 
- PETROSTUD LTDActive - Proposal to Strike off- 08561034 - Incorporated on 7 June 2013 
- PETROSIAN LTDDisolved- 11392132 - Dissolved on 5 December 2023 
- PETROSOL LTD- 15081086 - Incorporated on 18 August 2023 
- PETROSOM LTDActive - Proposal to Strike off- 08808251 - Incorporated on 10 December 2013 
- PETROSIR LTD- 11728016 - Incorporated on 14 December 2018 
- PETROSTREAM LTDDissolved- 06887201 - Dissolved on 6 August 2019 
- PETROSKANDIA LP- SL019050 - Incorporated on 15 December 2014 
- PETROSKY UK LTDActive - Proposal to Strike off- 11283469 - Incorporated on 29 March 2018