| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| AO COMMUNICATIONS LTD | NI668367 | 11/03/2020 | Strike Off |
| EGIS LAGAN SERVICES UK LIMITED | NI650685 | 01/10/2019 | Gold |
| H & J MARTIN HOLDINGS LIMITED | NI622050 | 01/10/2019 | Bronze |
| H&J MARTIN CONSTRUCTION GROUP LIMITED | NI686300 | 03/03/2022 | Silver |
| H&J MARTIN GROUP LIMITED | NI686297 | 03/03/2022 | Bronze |
| LAGAN AVIATION & INFRASTRUCTURE GROUP HOLDINGS LIMITED | NI646852 | 24/04/2023 | Silver |
| LAGAN CRAWL LIMITED | NI674360 | 18/11/2020 | Not Trading |
| LAGAN DEVELOPMENTS (HOLDINGS) LIMITED | NI049715 | 13/12/2023 | One Red Flag |
| LAGAN ENERGY TRADING LIMITED | NI723845 | 19/11/2024 | Amber |
| LAGAN INNOVATION LIMITED | NI673566 | 20/10/2020 | One Red Flag |
| LAGAN SMART MOBILITY LIMITED | NI673094 | 05/10/2020 | Not Trading |
| LAGAN SPECIALIST INFRASTRUCTURE GROUP LIMITED | NI685615 | 08/02/2022 | Silver |
| LOM MATERIALS LIMITED | NI609225 | 09/12/2024 | Bronze |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| F K LOWRY LIMITED | NI015250 | 01/04/2017 | 02/03/2018 | Bronze |
| F K LOWRY PLANT LIMITED | NI606582 | 01/04/2017 | 02/03/2018 | Bronze |
| LAGAN AIRPORT MAINTENANCE LIMITED | NI646853 | 10/07/2017 | 02/03/2018 | Silver |
| LAGAN AVIATION & INFRASTRUCTURE GROUP HOLDINGS LIMITED | NI646852 | 10/07/2017 | 02/03/2018 | Silver |
| OUTWOOD DEVELOPMENTS 2 LIMITED | 10073259 | 22/09/2017 | 08/09/2020 | One Red Flag |
| VIBEROPTIX OPCO LTD | NI666759 | 28/02/2020 | 25/03/2022 | Silver |