| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| INTEGRAL PRESSURE CONNECTIONS LIMITED | 07573990 | 22/03/2011 | Not Trading |
| INTERNATIONAL PIPING PRODUCTS (EUROPE) LIMITED | 05609369 | 01/11/2005 | Silver |
| IPP (CARBON & ALLOY) LIMITED | 10163444 | 05/05/2016 | One Red Flag |
| IPP (EUROPE) LIMITED | 11606626 | 05/10/2018 | Silver |
| IPP ACCURA SUPPLY LIMITED | 10663883 | 10/03/2017 | Gold |
| IPP FORGING LIMITED | 06641785 | 14/07/2008 | Not Trading |
| IPP HOLDINGS (CYPRUS) LIMITED | 11708258 | 03/12/2018 | Silver |
| IPP HOLDINGS (EUROPE) LIMITED | 11708277 | 03/12/2018 | Silver |
| IPP LINVIC ENGINEERING LIMITED | 10664080 | 10/03/2017 | Not Trading |
| IPP MARDALE LIMITED | 07410850 | 01/12/2010 | Gold |
| IPP PLANT & EQUIPMENT LEASING LIMITED | 11604488 | 04/10/2018 | Bronze |
| IPP PROPERTY HOLDINGS LIMITED | 11604481 | 04/10/2018 | Silver |
| IPP SCOMARK (EUROPE) LIMITED | 11604430 | 04/10/2018 | One Red Flag |
| IPP SCOMARK (HOLDINGS) LIMITED | SC589205 | 19/02/2018 | Bronze |
| IPP SCOMARK ENGINEERING LIMITED | 08105251 | 14/06/2012 | One Red Flag |
| IPP SCOMARK LIMITED | SC589329 | 20/02/2018 | One Red Flag |
| IPP SPECIALISED MACHINE SERVICES LIMITED | 09439342 | 13/02/2015 | Not Trading |
| IPP STAINLESS STEEL FASTENERS LIMITED | 10945955 | 05/09/2017 | Amber |
| IPP STOCK HOLDINGS LIMITED | 11604469 | 04/10/2018 | Silver |
| IPP VAN TRIEL LIMITED | 10664169 | 10/03/2017 | Amber |
| SCOMARK PIPE-FITTINGS INTERNATIONAL LIMITED | 06662076 | 01/08/2008 | Not Trading |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|