| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| CALIBA LIMITED | 00417827 | 13/01/2015 | Dissolved |
| L.B. FOSTER KELSAN TECHNOLOGIES (EUROPE) UNLIMITED | 03028531 | 16/10/2009 | Dissolved |
| L.B. FOSTER UK LTD | 09192448 | 29/08/2014 | Dissolved |
| NETPRACTISE LIMITED | 08723721 | 13/01/2015 | Dissolved |
| TEW CONTROL & DISPLAY SYSTEMS LTD. | 01141864 | 13/01/2015 | Dissolved |
| TEW HOLDINGS (2012) LIMITED | 08253728 | 13/01/2015 | Dissolved |
| TEW HOLDINGS 2008 LIMITED | 06752365 | 13/01/2015 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CORONET RAIL LIMITED | 04616486 | 13/12/2002 | 29/02/2024 | Not Trading |
| INTELLIGENT VIDEO LTD | 07220067 | 06/07/2022 | 29/02/2024 | Dissolved |
| L.B. FOSTER RAIL TECHNOLOGIES (UK) LIMITED | 03939427 | 01/02/2007 | 29/02/2024 | Silver |
| SKRATCH ENTERPRISES LIMITED | 05050095 | 21/06/2022 | 29/02/2024 | One Red Flag |
| TEW ENGINEERING LIMITED | 01134730 | 13/01/2015 | 29/02/2024 | Amber |
| TEW PLUS LIMITED | 05858025 | 23/11/2015 | 29/02/2024 | Amber |