- INTELLIGENT HOMES IN CONTROL LIMITEDDissolved- 05616609 - Dissolved on 24 December 2013 
- INTELLIGENT AUTOMATION CONTROL SYSTEMS LIMITED- 07658392 - Incorporated on 6 June 2011 
- INTELLIGENT PROJECT MANAGEMENT CONTROL LIMITED- 09483260 - Incorporated on 11 March 2015 
- INTELLIGENT PEST CONTROL SCOTLAND LIMITED- SC703092 - Incorporated on 1 July 2021 
- INTELLIGENT CONTROL SOLUTIONS GROUP LIMITEDActive - Proposal to Strike off- 08223895 - Incorporated on 21 September 2012 
- INTELLIGENT ACCESS CONTROL CONSULTANTS LTDDisolved- 12273444 - Dissolved on 21 February 2023 
- AIM INTELLIGENT PEST CONTROL LTD- 12587314 - Incorporated on 5 May 2020 
- INTELLIGENT PROCESS CONTROL SYSTEMS LTDActive - Proposal to Strike off- 09454762 - Incorporated on 24 February 2015 
- BRITISH INFECTION ASSOCIATION- SC198418 - Incorporated on 26 July 1999 
- INFECTION PROTECTION.ORG LIMITED- 06954891 - Incorporated on 7 July 2009 
- INFECTION MATTERS LIMITED- 06594513 - Incorporated on 15 May 2008 
- VL.INFECTIONPREVENTION LTD- 10194646 - Incorporated on 23 May 2016 
- INTELLIGENT SERVICES LIMITED- 04581278 - Incorporated on 5 November 2002 
- INFECTION0 LIMITEDDisolved- 12674635 - Dissolved on 18 February 2025 
- INFECTION MUSIC LIMITED- 04836178 - Incorporated on 17 July 2003 
- INFECTION EPIDEMIOLOGY LIMITEDActive - Proposal to Strike off- 05653909 - Incorporated on 14 December 2005 
- INFECTION SHIELD LIMITEDDisolved- 09623616 - Dissolved on 28 February 2023 
- GOOD INFECTION LIMITEDActive - Proposal to Strike off- 04278585 - Incorporated on 29 August 2001 
- INFECTION DOCTOR LIMITEDActive - Proposal to Strike off- 06186785 - Incorporated on 27 March 2007 
- INFECTION MANAGEMENT LIMITEDDissolved- 06436365 - Dissolved on 11 March 2014