- SHROPSHIRE FARM VETS LIMITED- 06497266 - Incorporated on 7 February 2008 
- P J O'SULLIVAN LTDDisolved- 09773758 - Dissolved on 5 November 2023 
- 4SEE ASBESTOS LIMITED- 07646234 - Incorporated on 24 May 2011 
- ASHBOURNE WINDOWS LIMITED- 08095726 - Incorporated on 7 June 2012 
- PURE CLASS WINDOWS 'N CLEANING LIMITEDDisolved- 11146384 - Dissolved on 25 October 2022 
- DES O'SULLIVAN LTDActive - Proposal to Strike off- SC508629 - Incorporated on 17 June 2015 
- LAMMAS PARK CONSULTING LIMITED- 04202685 - Incorporated on 20 April 2001 
- J O'SULLIVAN GROUP LTD- 12517677 - Incorporated on 13 March 2020 
- BRYAN O'SULLIVAN STUDIO LIMITED- 08673761 - Incorporated on 3 September 2013 
- GOLDENSTEN&GREY INVESTMENT UNLIMITEDActive - Proposal to Strike off- 09471637 - Incorporated on 4 March 2015 
- L O'SULLIVAN LTD- 09034556 - Incorporated on 12 May 2014 
- P SULLIVAN LTD- 08531466 - Incorporated on 16 May 2013 
- WATERMILL VALLEY LIMITED- 09230759 - Incorporated on 23 September 2014 
- MR.MR. LTDDisolved- 14252327 - Dissolved on 5 December 2023 
- MR MR2 LTD- 11218539 - Incorporated on 21 February 2018 
- MR & MR LTD- 16489396 - Incorporated on 2 June 2025 
- E T SULLIVAN LTD- 07564281 - Incorporated on 15 March 2011 
- SULLIVAN LTD- 05833498 - Incorporated on 31 May 2006 
- N O'SULLIVAN LTDActive - Proposal to Strike off- 08131928 - Incorporated on 5 July 2012 
- M. A. O'SULLIVAN LTDDissolved- 09222264 - Dissolved on 23 April 2019