- MULBERRY INFORMATION SYSTEMS LIMITED- 06032442 - Incorporated on 19 December 2006 
- OAKLANDS INFORMATION SYSTEMS LIMITED- 06134304 - Incorporated on 2 March 2007 
- HUMMINGBIRD INFORMATION SYSTEMS LIMITEDDisolved- 06155613 - Dissolved on 5 July 2022 
- BLUESMITH INFORMATION SYSTEMS LIMITED- 07540927 - Incorporated on 24 February 2011 
- MODESTIA INFORMATION SYSTEMS LIMITEDDisolved- 07648780 - Dissolved on 18 February 2025 
- BREAM INFORMATION SYSTEMS LIMITED- 06143513 - Incorporated on 7 March 2007 
- CONSORT INFORMATION SYSTEMS LIMITED- 02929141 - Incorporated on 16 May 1994 
- EDEM INFORMATION SYSTEMS LIMITED- 02402659 - Incorporated on 10 July 1989 
- EMERALD INFORMATION SYSTEMS LIMITEDActive - Proposal to Strike off- 02833490 - Incorporated on 6 July 1993 
- EVOLUTION INFORMATION SYSTEMS LIMITEDActive - Proposal to Strike off- 04383949 - Incorporated on 28 February 2002 
- MICROTECH INFORMATION SYSTEMS LIMITEDDissolved- SC338504 - Dissolved on 12 March 2010 
- AUTOMATED INFORMATION SYSTEMS LIMITEDDissolved- 01764055 - Dissolved on 20 April 2010 
- PRADO INFORMATION SYSTEMS LIMITED- 05086415 - Incorporated on 29 March 2004 
- RAND INFORMATION SYSTEMS LIMITED- 01217993 - Incorporated on 1 July 1975 
- RJT INFORMATION SYSTEMS LIMITEDDissolved- 03227999 - Dissolved on 20 December 2016 
- SABLONS INFORMATION SYSTEMS LIMITEDDisolved- 06616492 - Dissolved on 5 December 2023 
- MANAGEMENT INFORMATION SYSTEMS LIMITEDDisolved- 08253460 - Dissolved on 26 April 2022 
- SOCRATES INFORMATION SYSTEMS LIMITEDLiquidation- 05053003 - Incorporated on 23 February 2004 
- HARVESTER INFORMATION SYSTEMS LIMITEDActive - Proposal to Strike off- 02089548 - Incorporated on 14 January 1987 
- INFORMATION SYSTEMS GROUP LIMITEDDisolved- 03022300 - Dissolved on 4 October 2022