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- SYMMONS DORMANT LIMITEDLiquidation- 05724524 - Incorporated on 28 February 2006 
- MR & MRS SEW 'N' SEW LTD.- 07606830 - Incorporated on 18 April 2011 
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- MR&MRS STORE LTD- 16474263 - Incorporated on 27 May 2025 
- CHALLENGE CONTROL LTDLiquidation- 08876677 - Incorporated on 5 February 2014 
- PLAY IN THE GREY PRODUCTS LTD- 14351945 - Incorporated on 12 September 2022 
- S CHALLENGER LTDDissolved- 08042947 - Dissolved on 29 October 2013 
- CHALLENGLED LTD- SC422678 - Incorporated on 25 April 2012 
- MH CHALLENGE 20 LTDDisolved- 12726813 - Dissolved on 12 October 2021 
- CHALLENGEYOU2 CICDisolved- 12381753 - Dissolved on 20 July 2021 
- CHALLENGE US! LTDDissolved- 07447117 - Dissolved on 3 July 2012 
- CHALLENGECONSULTANTS LTDActive - Proposal to Strike off- 10564419 - Incorporated on 16 January 2017 
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- EDWARD O'BRIENLiquidation- 00136509 - Incorporated on 18 June 1914 
- EDWARD. DUTTON- LP006115 - Incorporated on 10 February 1999 
- MR N & MRS M AHMET LTD- 07433317 - Incorporated on 9 November 2010 
- MR AND MRS RAI LTDDisolved- 08886627 - Dissolved on 30 November 2021 
- MR & MRS T LIMITEDActive - Proposal to Strike off- 09846186 - Incorporated on 28 October 2015 
- MR V & MRS C SINGH LLPDisolved- OC414017 - Dissolved on 22 August 2023