| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| AIRPORT PROJECT MANAGEMENT LIMITED | NI658841 | 07/02/2019 | Dissolved |
| BALLYCLARE HEALTHCARE LIMITED | NI652803 | 29/06/2020 | Not Trading |
| LAGAN SRL LIMITED | NI601838 | 15/01/2010 | Dissolved |
| LOUGHRAN ASSOCIATES LIMITED | NI644948 | 31/03/2017 | Silver |
| READER DEVELOPMENTS LIMITED | NI679006 | 05/05/2021 | One Red Flag |
| SHARPNESS ASPHALT LTD | 11686263 | 02/08/2022 | Bronze |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BWL ENERGY (RYE HOUSE) LIMITED | NI637185 | 18/03/2016 | 01/04/2017 | Dissolved |
| BWL ENERGY (TEESSIDE) LTD. | NI632213 | 30/06/2015 | 02/11/2015 | One Red Flag |
| CHARLES BRAND GROUP LIMITED | NI622052 | 19/12/2013 | 01/04/2017 | Bronze |
| CHARLES BRAND LIMITED | NI022465 | 01/09/2010 | 01/04/2017 | Silver |
| CHARLES BRAND M&E LIMITED | NI013689 | 01/09/2010 | 01/04/2017 | Not Trading |
| CNIM LAGAN (CARDIFF) LIMITED | NI611283 | 20/02/2012 | 05/03/2018 | Dissolved |
| CNIM LAGAN (SOUTH LONDON) LIMITED | NI613349 | 26/06/2012 | 14/10/2015 | Dissolved |
| CNIM LAGAN (SUFFOLK) LIMITED | NI604602 | 29/09/2010 | 05/03/2018 | Dissolved |
| DEW PILING LIMITED | 05848833 | 01/04/2012 | 01/04/2017 | One Red Flag |
| EAGLEPASS LIMITED | NI020140 | 06/11/2014 | 01/04/2017 | Not Trading |
| ELDUFGAR CONSTRUCTION LTD | NI001765 | 06/11/2014 | 01/04/2017 | Dissolved |
| F K LOWRY LIMITED | NI015250 | 01/04/2012 | 01/04/2017 | Bronze |
| F K LOWRY PLANT LIMITED | NI606582 | 12/01/2012 | 01/04/2017 | Bronze |
| FK LOWRY HOLDINGS LIMITED | NI622051 | 19/12/2013 | 01/04/2017 | One Red Flag |
| FORTEM BUILDING MATERIALS LIMITED | NI637746 | 12/04/2016 | 01/04/2017 | Not Trading |
| GRAND OPERA HOUSE TRUST | NI028078 | 25/05/2017 | 26/03/2024 | Gold |
| H & J MARTIN CONSTRUCTION LIMITED | NI020288 | 01/04/2015 | 01/04/2017 | One Red Flag |
| H & J MARTIN HOLDINGS LIMITED | NI622050 | 19/12/2013 | 01/04/2017 | Bronze |
| H.& J. MARTIN LIMITED | R0000273 | 01/04/2015 | 01/04/2017 | Bronze |
| LAGAN (EDINBURGH) LIMITED | NI634299 | 16/10/2015 | 01/04/2017 | Not Trading |
| LAGAN 105 LIMITED | NI036434 | 06/11/2014 | 01/06/2017 | Not Trading |
| LAGAN 106 LIMITED | NI011212 | 06/11/2014 | 01/04/2017 | Amber |
| LAGAN AVIATION & INFRASTRUCTURE LIMITED | NI627818 | 14/11/2014 | 01/04/2017 | One Red Flag |
| LAGAN BUILDING CONTRACTORS LIMITED | NI605800 | 12/01/2012 | 01/04/2017 | Insolvent |
| LAGAN CONSTRUCTION GROUP HOLDINGS LIMITED | NI073094 | 01/04/2012 | 01/04/2017 | Insolvent |
| LAGAN CONSTRUCTION GROUP LIMITED | NI605798 | 12/01/2012 | 01/04/2017 | Insolvent |
| LAGAN CONSTRUCTION LIMITED | NI005233 | 10/01/2006 | 24/04/2017 | One Red Flag |
| LAGAN HOLDINGS LIMITED | NI049714 | 08/11/2018 | 28/11/2019 | One Red Flag |
| LAGAN INTERNATIONAL (HOLDINGS) LIMITED | NI054909 | 01/04/2012 | 01/06/2017 | Not Trading |
| LAGAN INTERNATIONAL LIMITED | NI039742 | 12/04/2003 | 01/04/2017 | Silver |
| LAGAN MEICA LIMITED | NI031208 | 25/07/2012 | 01/04/2017 | Silver |
| LAGAN OPERATIONS AND MAINTENANCE HOLDINGS LIMITED | NI622043 | 19/12/2013 | 01/04/2017 | One Red Flag |
| LAGAN WATER LIMITED | NI609220 | 13/09/2012 | 01/04/2017 | Dissolved |
| LOWRY PILING (IRELAND) LIMITED | NI040382 | 01/04/2012 | 01/04/2017 | Not Trading |
| MARTIN ESTATES COMPANY LIMITED | R0000521 | 01/04/2015 | 01/05/2017 | Amber |
| P.J. LAGAN (CONTRACTS) LIMITED | NI007594 | 06/11/2014 | 01/04/2017 | Amber |
| ROSEMOUNT HOMES GROUP LIMITED | NI609211 | 01/09/2012 | 01/04/2017 | Gold |
| THE GRAND OPERA HOUSE (THEATRE) LIMITED | NI050771 | 25/05/2017 | 26/03/2024 | One Red Flag |