- FENN ELECTRONICS LIMITEDLiquidation- 06646890 - Incorporated on 15 July 2008 
- FENN PROJECTS LIMITEDActive - Proposal to Strike off- 08196091 - Incorporated on 30 August 2012 
- FENN CONSULTANCY LIMITEDDisolved- 08805471 - Dissolved on 7 March 2023 
- FENN HOLDINGS LTD- 09685373 - Incorporated on 14 July 2015 
- FENN CONSULTING LIMITED- 12377539 - Incorporated on 24 December 2019 
- FENN TURF LIMITEDDissolved- 05441372 - Dissolved on 15 June 2010 
- FENN MAKEUP LTDDisolved- 13564004 - Dissolved on 10 September 2024 
- A FENN LIMITED- 13148639 - Incorporated on 21 January 2021 
- FENN ESTATES LTD- 16033627 - Incorporated on 22 October 2024 
- FENN DIGITAL LTD- 16418471 - Incorporated on 29 April 2025 
- FENNEC DZ LTDDisolved- 15038203 - Dissolved on 31 December 2024 
- FENNOIR LTDDisolved- 07681417 - Dissolved on 30 November 2021 
- R D FENNER & CO LLP- SO303691 - Incorporated on 8 December 2011 
- FENN LOGISTICS LIMITED- 04299595 - Incorporated on 5 October 2001 
- RAY-RAY'S X-RAYS LTDDissolved- 10291970 - Dissolved on 15 October 2019 
- RAY RAY LTDActive - Proposal to Strike off- 11646551 - Incorporated on 29 October 2018 
- RAY RAY LIMITED- 13462306 - Incorporated on 17 June 2021 
- RAY RAY LIMITEDActive - Proposal to Strike off- 09902599 - Incorporated on 4 December 2015 
- FENNEMA 4X4 LTDActive - Proposal to Strike off- SC561658 - Incorporated on 28 March 2017 
- FENN TOOL LTD- 01489168 - Incorporated on 2 April 1980 - 44 Springwood Drive, Springwood Industrial Estate, Braintree, Essex, CM7 2YN