- LONDON INFECTION ASSOCIATES LLP- OC425300 - Incorporated on 18 December 2018 
- CAMBRIDGE INFECTION DIAGNOSTICS LTD- 12929776 - Incorporated on 5 October 2020 
- HOSPITAL ACQUIRED INFECTION AND WORK PLACE ACQUIRED INFECTION LTD.Disolved- 06875358 - Dissolved on 23 August 2022 
- INTELLIGENT PROTECTIVE SERVICES LTDActive - Proposal to Strike off- 07338335 - Incorporated on 6 August 2010 
- INTELLIGENT LOGISTICS SERVICES LTD- 07843876 - Incorporated on 11 November 2011 
- IPIS INTELLIGENT SERVICES LTDLiquidation- 08033318 - Incorporated on 17 April 2012 
- INTELLIGENT COMPUTER SERVICES LTDActive - Proposal to Strike off- 06547895 - Incorporated on 28 March 2008 
- INTELLIGENT MARINE SERVICES LTDActive - Proposal to Strike off- 08724594 - Incorporated on 9 October 2013 
- INTELLIGENT COMPLETE SERVICES LTDDisolved- 08587485 - Dissolved on 18 October 2022 
- INTELLIGENT CONTRACT SERVICES LTD- 13524652 - Incorporated on 22 July 2021 
- INTELLIGENT SECURITY SERVICES LTD- 16297724 - Incorporated on 6 March 2025 
- J K VALVE SPARES LIMITEDDissolved- 02740321 - Dissolved on 1 March 2011 
- INFOPLEX LTD.- SC154345 - Incorporated on 17 November 1994 
- VERSATILE COMPANY NO. 2 LIMITEDDissolved- 03690543 - Dissolved on 22 February 2011 
- INTELLIGENT ELECTRICAL SERVICES LTD- 07157093 - Incorporated on 15 February 2010 
- INTELLIGENT NETWORK SERVICES LLP- OC300770 - Incorporated on 3 October 2001 
- INTELLIGENT DESIGN SERVICES LTDDisolved- 11484914 - Dissolved on 28 May 2024 
- INTELLIGENT ENVIRONMENTAL SERVICES LTD- 12036042 - Incorporated on 6 June 2019 
- INTELLIGENT LEGAL SERVICES LTD- 12215987 - Incorporated on 19 September 2019 - glam consultants, Unit 15 Hurston court, scarisbrick, l40 8hn 
- HEIMDALL INTELLIGENT SERVICES LTD- 11636796 - Incorporated on 23 October 2018