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- IONYZE LTD- 16097349 - Incorporated on 24 November 2024 
- IONIST LTD- 16537522 - Incorporated on 24 June 2025 
- CONROYDS LIMITEDDisolved- 07362093 - Dissolved on 29 August 2023 
- MICADANT PLCLiquidation- 03346014 - Incorporated on 1 April 1997 
- KNUCKLEDOWN THEATRE LIMITED- 09229940 - Incorporated on 22 September 2014 
- ITFA LIMITED- 11700443 - Incorporated on 28 November 2018 
- ENVIRO PPE LTDDisolved- 13248784 - Dissolved on 19 July 2022 
- MER CONSTRUCTION LIMITEDDisolved- 13273817 - Dissolved on 1 April 2025 
- IONA EI (SLP) LP- SL009379 - Incorporated on 4 August 2011 
- ION MARA LTDDissolved- 07516800 - Dissolved on 18 September 2012 
- IONEUM LTD- 06570963 - Incorporated on 21 April 2008 
- IONICO LTD- 08703399 - Incorporated on 24 September 2013 
- ION&NELU LTDDisolved- 12603547 - Dissolved on 19 October 2021 
- IONCEA LTD- 13485535 - Incorporated on 30 June 2021 
- GELU ION LTDDisolved- 13493818 - Dissolved on 9 May 2023 
- ION WIND LTD- SC640915 - Incorporated on 6 September 2019 
- MISU ION LTDActive - Proposal to Strike off- 09707190 - Incorporated on 28 July 2015 
- ION POPA LTD- 10990650 - Incorporated on 2 October 2017 
- IONDRZ LTDDisolved- 13768835 - Dissolved on 16 May 2023