| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| COD LIMITED | 05377885 | 28/02/2005 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BUCKNALL AUSTIN LIMITED | 05974238 | 25/01/2007 | 19/03/2013 | Not Trading |
| EMPLOYEE OWNERSHIP ASSOCIATION | 01419899 | 11/08/2008 | 01/03/2011 | Silver |
| EPG - RIDER LEVETT BUCKNALL LIMITED | 07342811 | 10/09/2010 | 22/09/2014 | Dissolved |
| EUROPEAN CONSTRUCTION COSTS LIMITED | 08145334 | 31/08/2012 | 22/09/2014 | Dissolved |
| GALLAGHER AGGREGATES LIMITED | 02231689 | 01/01/2019 | 17/11/2023 | Silver |
| GALLAGHER BLOODSTOCK LIMITED | 02269764 | 01/07/2023 | 01/07/2023 | One Red Flag |
| GALLAGHER CONCRETE LIMITED | 03770347 | 01/01/2019 | 17/11/2023 | Not Trading |
| GALLAGHER GROUP LIMITED | 02297920 | 01/01/2019 | 17/11/2023 | Gold |
| GALLAGHER LAND LIMITED | 06010720 | 01/01/2019 | 17/11/2023 | One Red Flag |
| GALLAGHER LIMITED | 03797518 | 01/01/2019 | 17/11/2023 | Bronze |
| GALLAGHER PLANT LIMITED | 01129009 | 01/01/2019 | 17/11/2023 | Gold |
| GALLAGHER PROCESSED AGGREGATES LIMITED | 10883961 | 13/06/2019 | 17/11/2023 | Not Trading |
| GALLAGHER PROPERTIES LIMITED | 02082870 | 01/01/2019 | 17/11/2023 | Silver |
| GALLAGHER RESOURCES LIMITED | 06501701 | 01/01/2019 | 17/11/2023 | Silver |
| LEITRIM LIMITED | 02746254 | 01/01/2019 | 17/11/2023 | Silver |
| MCCOY JAMES LIMITED | 05546194 | 28/09/2005 | 31/12/2011 | One Red Flag |
| MCCOY JAMES LIMITED | 05546194 | 31/12/2011 | 22/09/2014 | One Red Flag |
| P GALLAGHER ESTATES LIMITED | 12647285 | 05/06/2020 | 17/11/2023 | Not Trading |
| PSM REALISATIONS LIMITED | 03264983 | 01/09/2001 | 01/03/2002 | Dissolved |
| RIDER LEVETT BUCKNALL CONSTRUCTION MANAGEMENT UK LIMITED | 05983983 | 25/01/2007 | 22/09/2014 | Not Trading |
| RIDER LEVETT BUCKNALL LIMITED | 05594095 | 25/01/2007 | 22/09/2014 | Not Trading |
| RIDER LEVETT BUCKNALL UK LIMITED | 04653580 | 01/05/2005 | 22/09/2014 | Silver |