- MATHISEN INVESTMENT LIMITEDActive - Proposal to Strike off- 09250033 - Incorporated on 6 October 2014 
- ALAN MATHISON TURING LIMITED- 12105859 - Incorporated on 16 July 2019 
- MATHISON DIGITAL LIMITED- 10527776 - Incorporated on 15 December 2016 
- MARION GRAPPERON-MATHIS TELERADIOLOGY LTDActive - Proposal to Strike off- 11339486 - Incorporated on 1 May 2018 
- ROSIE MATHISEN CONSULTING LTD- 07546260 - Incorporated on 1 March 2011 
- MATHISON PROPERTY LIMITED- 15643880 - Incorporated on 13 April 2024 
- MATHISEN INVEST NORWAY LIMITEDActive - Proposal to Strike off- 11696059 - Incorporated on 26 November 2018 
- UK MAIKOWER BIOTECHNOLOGY GROUP LIMITEDActive - Proposal to Strike off- 16284564 - Incorporated on 28 February 2025 
- MATHISEN TRANSPORT NORGE LIMITEDActive - Proposal to Strike off- 11696110 - Incorporated on 26 November 2018 
- MATHISEN MEDIA SOLUTIONS LIMITEDDisolved- 13130666 - Dissolved on 24 January 2023 
- SIGURD A. MATHISEN INVEST LIMITEDActive - Proposal to Strike off- 08693996 - Incorporated on 17 September 2013 
- SIGURD A. MATHISEN MASKINSERVICE LIMITEDDissolved- 08694089 - Dissolved on 4 March 2014 
- BYGG OG TOMRERMESTER KJETIL MATHISEN LTDDissolved- 08183382 - Dissolved on 1 April 2014 
- MATHISON, PALMER & COMPANY LIMITED- SC010995 - Incorporated on 27 February 1920 
- MATHISON MARINE ENGINEERING LIMITED- 09392054 - Incorporated on 16 January 2015 
- W G T F B MANAGEMENT LTDDissolved- 06741216 - Dissolved on 7 December 2010 
- STRANGE JEENS AND MATHISON (NORTH) LIMITED- SC209986 - Incorporated on 14 August 2000 
- MATHISEN COMPLIANCE CONSULTING LIMITED- 08209164 - Incorporated on 11 September 2012 
- EMILY FEB 2019 LIMITEDActive - Proposal to Strike off- 07429598 - Incorporated on 4 November 2010 
- MATHISON REGISTERED FARRIERS LIMITED- 06430184 - Incorporated on 19 November 2007