- OCTAVIAN GROUP LIMITEDActive - Proposal to Strike off- 05290303 - Incorporated on 18 November 2004 
- OCTAVIAN ANIMATION LTDActive - Proposal to Strike off- 08809411 - Incorporated on 10 December 2013 
- OCTAVIAN TELECOMMUNICATIONS LTDActive - Proposal to Strike off- 09390639 - Incorporated on 15 January 2015 
- OCTAVIAN CONSTRUCTIONS LTDDisolved- 13892579 - Dissolved on 11 July 2023 
- OCTAVIAN CONSULTANTS LIMITED- 13529593 - Incorporated on 26 July 2021 
- OCTAVIAN MEDIA LIMITEDDisolved- 14070982 - Dissolved on 24 January 2023 
- OCTAVIAN CORPORATE LIMITED- 16113183 - Incorporated on 2 December 2024 
- OCTAVIAN PETRE LTDActive - Proposal to Strike off- 09083661 - Incorporated on 12 June 2014 
- OCTAVIAN GROUP LTD- 11549889 - Incorporated on 3 September 2018 
- OCTAVIAN LINKS LTDDisolved- 12785115 - Dissolved on 11 January 2022 
- CATALIN COSTEL MORARU LTDDisolved- 12786730 - Dissolved on 11 January 2022 
- MORARU TRANSLATION SERVICES LTDActive - Proposal to Strike off- 08613050 - Incorporated on 17 July 2013 
- MORARU TRANS INTERNATIONAL LTD- 12027582 - Incorporated on 3 June 2019 
- OCTAVIAN PARTNERS LLPDissolved- OC344578 - Dissolved on 27 September 2011 
- OCTAVIAN SOLUTIONS LTDLiquidation- 07365643 - Incorporated on 3 September 2010 
- OCTAVIAN TECHNOLOGY LTD- 09033467 - Incorporated on 12 May 2014 
- OCTAVIAN CAPITAL LIMITED- 09711547 - Incorporated on 31 July 2015 
- OCTAVIAN CONSULTANCY LTD- 09301119 - Incorporated on 7 November 2014 
- OCTAVIAN HOMES LIMITED- 09336647 - Incorporated on 2 December 2014 
- OCTAVIAN SCOTLAND LTDActive - Proposal to Strike off- SC532042 - Incorporated on 8 April 2016