| Name | Company Number | Date Appointed | Rating |
|---|
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CHARLES BRAND GROUP LIMITED | NI622052 | 02/03/2018 | 01/10/2019 | Bronze |
| CHARLES BRAND LIMITED | NI022465 | 02/03/2018 | 01/10/2019 | Silver |
| CHARLES BRAND M&E LIMITED | NI013689 | 02/03/2018 | 01/10/2019 | Not Trading |
| CNIM LAGAN (CARDIFF) LIMITED | NI611283 | 05/03/2018 | 22/10/2019 | Dissolved |
| CNIM LAGAN (SUFFOLK) LIMITED | NI604602 | 05/03/2018 | 22/10/2019 | Dissolved |
| DEW PILING LIMITED | 05848833 | 02/03/2018 | 01/10/2019 | One Red Flag |
| EGIS LAGAN SERVICES UK LIMITED | NI650685 | 01/02/2018 | 01/10/2019 | Gold |
| F K LOWRY LIMITED | NI015250 | 02/03/2018 | 01/10/2019 | Silver |
| F K LOWRY PLANT LIMITED | NI606582 | 02/03/2018 | 01/10/2019 | Bronze |
| FK LOWRY HOLDINGS LIMITED | NI622051 | 02/03/2018 | 01/10/2019 | One Red Flag |
| H & J MARTIN CONSTRUCTION LIMITED | NI020288 | 02/03/2018 | 01/10/2019 | One Red Flag |
| H & J MARTIN HOLDINGS LIMITED | NI622050 | 02/03/2018 | 01/10/2019 | Silver |
| H.& J. MARTIN LIMITED | R0000273 | 02/03/2018 | 01/10/2019 | Bronze |
| LAGAN AIRPORT MAINTENANCE LIMITED | NI646853 | 08/06/2018 | 01/10/2019 | Gold |
| LAGAN AVIATION & INFRASTRUCTURE LIMITED | NI627818 | 02/03/2018 | 01/10/2019 | Gold |
| LAGAN BARRIER SOLUTIONS LIMITED | NI625735 | 02/03/2018 | 01/10/2019 | Not Trading |
| LAGAN CONSTRUCTION LIMITED | NI005233 | 02/03/2018 | 01/10/2019 | One Red Flag |
| LAGAN ELECTRICAL SOLUTIONS LIMITED | NI634257 | 02/03/2018 | 01/10/2019 | Not Trading |
| LAGAN INTERNATIONAL (HOLDINGS) LIMITED | NI054909 | 02/03/2018 | 01/10/2019 | Not Trading |
| LAGAN MEICA LIMITED | NI031208 | 02/03/2018 | 01/10/2019 | Bronze |
| LAGAN OPERATIONS & MAINTENANCE LIMITED | NI041431 | 02/03/2018 | 01/10/2019 | Bronze |
| LAGAN OPERATIONS AND MAINTENANCE HOLDINGS LIMITED | NI622043 | 02/03/2018 | 01/10/2019 | One Red Flag |
| LAGAN TRAFFIC MANAGEMENT LTD | NI630163 | 02/03/2018 | 01/10/2019 | Not Trading |
| LAGAN TRAFFIC SOLUTIONS LTD | NI630162 | 02/03/2018 | 01/10/2019 | Not Trading |
| LOM MATERIALS LIMITED | NI609225 | 02/03/2018 | 01/10/2019 | Bronze |
| LOWRY PILING (IRELAND) LIMITED | NI040382 | 02/03/2018 | 01/10/2019 | Not Trading |
| MAGNOR PLANT HIRE LIMITED | 00905526 | 08/04/2014 | 31/08/2017 | Silver |
| MARTIN ESTATES COMPANY LIMITED | R0000521 | 02/03/2018 | 01/10/2019 | Amber |
| MORGAN SINDALL CONSTRUCTION & INFRASTRUCTURE LTD | 04273754 | 08/04/2014 | 31/08/2017 | Silver |