| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| DALGLEN (NO. 1150) LIMITED | SC353371 | 14/04/2009 | Dissolved |
| ICR TECHNOLOGY LIMITED | SC417865 | 24/02/2012 | Dissolved |
| MARNOCH CONSULTING LIMITED | SC344585 | 19/06/2008 | Dissolved |
| NORTH EAST CORROSION ENGINEERS LIMITED | SC291714 | 09/12/2019 | Dissolved |
| QUICKFLANGE UK LIMITED | 06393042 | 09/12/2019 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ICR (HOLDINGS) 1 LIMITED | 12014587 | 31/05/2019 | 01/09/2021 | Amber |
| ICR (INVESTMENT 1) LIMITED | 08911659 | 13/03/2014 | 22/12/2016 | Silver |
| ICR (INVESTMENT 2) LIMITED | 08911715 | 13/03/2014 | 22/12/2016 | Bronze |
| ICR INTEGRITY (GROUP) LIMITED | 08915480 | 09/12/2019 | 01/09/2021 | One Red Flag |
| ICR INTEGRITY (HOLDINGS) LIMITED | 08910044 | 13/03/2014 | 01/09/2021 | Silver |
| ICR INTEGRITY LIMITED | 07602331 | 09/12/2019 | 01/09/2021 | Bronze |
| MOSS MECHANICAL ON SITE SERVICES LIMITED | 03807107 | 09/12/2019 | 01/09/2021 | Silver |
| OMNI INTEGRITY LIMITED | 12526812 | 20/01/2021 | 27/09/2021 | One Red Flag |
| QUICKFLANGE UK LIMITED | 06393042 | 18/12/2015 | 22/12/2016 | Dissolved |
| SKY FUTURES PARTNERS LIMITED | 06931399 | 09/12/2019 | 01/09/2021 | One Red Flag |
| STORK TECHNICAL SERVICES UK LIMITED | SC161193 | 01/02/2006 | 12/06/2008 | Gold |
| WALKER TECHNICAL RESOURCES LIMITED | SC140062 | 01/06/2009 | 22/12/2014 | Silver |