- SIAN HANNAH LTD- 11978591 - Incorporated on 3 May 2019 
- SIANA LIMITEDActive - Proposal to Strike off- 08710276 - Incorporated on 30 September 2013 
- SIAN TAYLOR 6935 LTDActive - Proposal to Strike off- 10408388 - Incorporated on 3 October 2016 
- SIAN WILSON LTD.Active - Proposal to Strike off- 10562961 - Incorporated on 13 January 2017 
- SIANA LIMITED- 10745453 - Incorporated on 28 April 2017 
- SIAN CALADO LTDActive - Proposal to Strike off- 16078093 - Incorporated on 13 November 2024 
- SIAN WHOLESALE LIMITED- 04654483 - Incorporated on 3 February 2003 
- GIFTS BY SIAN LIMITEDActive - Proposal to Strike off- 10068953 - Incorporated on 17 March 2016 
- SIANNY LIMITED- 07556222 - Incorporated on 8 March 2011 
- SIANCH LIMITEDActive - Proposal to Strike off- 08412618 - Incorporated on 20 February 2013 
- SIAN HEADECH LTDActive - Proposal to Strike off- 09402322 - Incorporated on 22 January 2015 
- WEI SIAN LIMITED- 09844099 - Incorporated on 27 October 2015 
- SIAN BURNETT LTD- 12038146 - Incorporated on 7 June 2019 
- SIANA TRAVEL LTD- 15419912 - Incorporated on 17 January 2024 
- THE SIAN GROUP LTD- 16120465 - Incorporated on 5 December 2024 
- SIANNE LIMITED- NI039108 - Incorporated on 8 August 2000 
- DR SIAN COOPER LTDDissolved- 09862403 - Dissolved on 10 April 2018 
- BEAUTY BY SIAN LTD- 12499256 - Incorporated on 5 March 2020 
- ANGHARAD THOMAS PHOTOGRAPHY LTD- 11810163 - Incorporated on 6 February 2019 
- SIAN PROPERTY IMPROVEMENTS LTD- 08986639 - Incorporated on 8 April 2014