| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| AMEY FMP BELFAST STRATEGIC PARTNERSHIP HOLD CO LIMITED | 06489978 | 10/01/2022 | Amber |
| AMEY FMP BELFAST STRATEGIC PARTNERSHIP SP CO LIMITED | 06489959 | 10/01/2022 | Amber |
| ARMAGH ASPHALT LIMITED | NI039688 | 01/10/2019 | Not Trading |
| CHARLES BRAND LIMITED | NI022465 | 01/10/2019 | Silver |
| CHARLES BRAND M&E LIMITED | NI013689 | 01/10/2019 | Not Trading |
| CHARLES BRAND UTILITIES LTD | NI690967 | 07/09/2022 | Bronze |
| COASTAL CLEAR WATER (HOLDINGS) LIMITED | NI035623 | 01/10/2019 | Amber |
| COASTAL CLEAR WATER LIMITED | NI030252 | 01/10/2019 | Amber |
| DEW PILING LIMITED | 05848833 | 01/10/2019 | One Red Flag |
| EAGLEPASS LIMITED | NI020140 | 01/10/2019 | Not Trading |
| ELDUFGAR CONSTRUCTION LTD | NI001765 | 01/10/2019 | Dissolved |
| F K LOWRY LIMITED | NI015250 | 01/10/2019 | Silver |
| F K LOWRY PLANT LIMITED | NI606582 | 01/10/2019 | Bronze |
| H & J MARTIN CONSTRUCTION LIMITED | NI020288 | 01/10/2019 | One Red Flag |
| H & J MARTIN HOLDINGS LIMITED | NI622050 | 10/12/2019 | Silver |
| H&J MARTIN CONSTRUCTION GROUP LIMITED | NI686300 | 03/03/2022 | Silver |
| H&J MARTIN GROUP LIMITED | NI686297 | 03/03/2022 | Silver |
| H.& J. MARTIN LIMITED | R0000273 | 01/10/2019 | Bronze |
| LAGAN 105 LIMITED | NI036434 | 01/10/2019 | Not Trading |
| LAGAN 106 LIMITED | NI011212 | 01/10/2019 | Amber |
| LAGAN AIRPORT MAINTENANCE LIMITED | NI646853 | 01/10/2019 | Gold |
| LAGAN AVIATION & INFRASTRUCTURE LIMITED | NI627818 | 01/10/2019 | Gold |
| LAGAN BARRIER SOLUTIONS LIMITED | NI625735 | 01/10/2019 | Not Trading |
| LAGAN CONSTRUCTION SERVICES LIMITED | NI010673 | 01/10/2019 | Not Trading |
| LAGAN ELECTRICAL SOLUTIONS LIMITED | NI634257 | 01/10/2019 | Not Trading |
| LAGAN INTERNATIONAL (HOLDINGS) LIMITED | NI054909 | 01/10/2019 | Not Trading |
| LAGAN MEICA LIMITED | NI031208 | 01/10/2019 | Bronze |
| LAGAN OPERATIONS & MAINTENANCE LIMITED | NI041431 | 01/10/2019 | Bronze |
| LAGAN PROJECTS INVESTMENTS LIMITED | NI050116 | 01/10/2019 | Silver |
| LAGAN SERVICES LIMITED | NI040181 | 01/10/2019 | Silver |
| LAGAN TRAFFIC MANAGEMENT LTD | NI630163 | 01/10/2019 | Not Trading |
| LAGAN TRAFFIC SOLUTIONS LTD | NI630162 | 01/10/2019 | Not Trading |
| LOM MATERIALS LIMITED | NI609225 | 01/10/2019 | Bronze |
| LOWRY PILING (IRELAND) LIMITED | NI040382 | 01/10/2019 | Not Trading |
| MARTIN ESTATES COMPANY LIMITED | R0000521 | 01/10/2019 | Amber |
| P.J. LAGAN (CONTRACTS) LIMITED | NI007594 | 01/10/2019 | Amber |
| ROSEWOOD BESPOKE JOINERY LIMITED | NI692933 | 30/11/2022 | Gold |
| SMS CONTRACTS LTD | NI667616 | 11/11/2022 | One Red Flag |
| SMS FIBRE LTD | NI693808 | 18/01/2023 | Gold |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CHARLES BRAND GROUP HOLDINGS LIMITED | NI609229 | 13/01/2023 | 11/09/2023 | Not Trading |
| LAGAN AVIATION & INFRASTRUCTURE GROUP HOLDINGS LIMITED | NI646852 | 01/10/2019 | 24/04/2023 | Gold |