- MATHISON DSP LIMITED- 11495136 - Incorporated on 1 August 2018 
- MATHISON TRADING LTDActive - Proposal to Strike off- 10442364 - Incorporated on 24 October 2016 
- FRED MATHISON LIMITEDActive - Proposal to Strike off- 07925801 - Incorporated on 26 January 2012 
- FAGBYGG MATHISEN LTD- 07665874 - Incorporated on 10 June 2011 
- ARCHICRAFT LIMITED- 02808501 - Incorporated on 13 April 1993 
- G MATHISON COMMERCIAL LTD.- SC460670 - Incorporated on 3 October 2013 
- MCALLISTER MATHISON LTDDissolved- 07734518 - Dissolved on 19 March 2013 
- MATHISON CONSULTING LTD- 13854581 - Incorporated on 18 January 2022 
- MCCLEERY MATHISON LTDDissolved- NI026178 
- DAG INGE MATHISSEN LIMITEDActive - Proposal to Strike off- 07027296 - Incorporated on 23 September 2009 
- MATHISYS TRADING LIMITED- 14961602 - Incorporated on 26 June 2023 
- MATHISON GROUP LIMITED- 15643860 - Incorporated on 13 April 2024 
- MAIKO MINERAL FIELDS UK LIMITEDDisolved- 11823581 - Dissolved on 23 April 2024 
- SUND-MATHISEN INVEST LIMITEDDissolved- 07425086 - Dissolved on 8 January 2013 
- MATHISON HOLDINGS LIMITED- 15248325 - Incorporated on 31 October 2023 
- MATHISON DIGITAL LIMITED- 15017569 - Incorporated on 21 July 2023 
- MATHISON'S HOLDING LIMITED- 16169202 - Incorporated on 7 January 2025 
- MATHISEN CONSULTING LTDDisolved- 12708318 - Dissolved on 7 December 2021 
- MATHISEN & ASSOCIATES LTDLiquidation- 06426252 - Incorporated on 13 November 2007 
- MATHISON ENGINEERING LIMITED- 06941537 - Incorporated on 23 June 2009