| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ALPHA ACCESS LIMITED | SC140747 | 24/05/2007 | Dissolved |
| ALPHA CRANE LIMITED | SC132908 | 24/05/2007 | Dissolved |
| AURIGIN LIMITED | SC140748 | 24/05/2007 | Dissolved |
| AYRSHIRE CRANE LIMITED | SC094142 | 24/05/2007 | Dissolved |
| BARMIX CONCRETE LIMITED | SC094143 | 24/05/2007 | Dissolved |
| BARR (SOUTHERN) LIMITED | SC216304 | 24/05/2007 | Dissolved |
| BARR CAIRNRYAN LIMITED | SC341778 | 03/09/2008 | Amber |
| BARR CONSTRUCTION (SOUTHERN) LIMITED | SC200220 | 24/05/2007 | Dissolved |
| BARR CONSTRUCTION LIMITED | SC094145 | 24/05/2007 | Dissolved |
| BARR CONSTRUCTION SERVICES LIMITED | SC146438 | 24/05/2007 | Dissolved |
| BARR CONSTRUCTION SUPPORT LIMITED | SC218237 | 24/05/2007 | Dissolved |
| BARR CONTRACT MANAGEMENT LIMITED | SC092345 | 24/05/2007 | Dissolved |
| BARR ENVIRONMENTAL LIMITED | SC162876 | 24/05/2007 | Amber |
| BARR FACILITIES MANAGEMENT LIMITED | SC154881 | 24/05/2007 | Bronze |
| BARR HOMES LIMITED | SC144002 | 24/05/2007 | Dissolved |
| BARR INVESTMENTS LIMITED | SC226349 | 24/05/2007 | Dissolved |
| BARR LEISURE LIMITED | SC154882 | 24/05/2007 | Gold |
| BARR LIMITED | SC060291 | 24/05/2007 | Bronze |
| BARR SPECIAL PROJECTS LIMITED | SC205473 | 24/05/2007 | Dissolved |
| BARR STEEL LIMITED | SC184084 | 24/05/2007 | Dissolved |
| BARR SUBCO 1 LIMITED | SC094160 | 24/05/2007 | Dissolved |
| BARR SUBCO 2 LIMITED | SC488563 | 12/11/2014 | Amber |
| BARR TECHNICAL SERVICES LIMITED | SC149244 | 24/05/2007 | Dissolved |
| BARR WASTE LIMITED | SC136609 | 24/05/2007 | Dissolved |
| ECONOSPACE LIMITED | SC143101 | 24/05/2007 | Dissolved |
| GRANGE LIMITED | NI031662 | 07/01/2002 | Gold |
| HERITAGE ENGLAND LIMITED | SC205474 | 24/05/2007 | Dissolved |
| HERITAGE SCOTLAND LIMITED | SC146437 | 24/05/2007 | Gold |
| INTERACTIVE (IRELAND) LIMITED | NI043541 | 23/08/2002 | Silver |
| IPARK GLASGOW LTD | NI664463 | 18/09/2019 | Bronze |
| MCLAUGHLIN & HARVEY CONSTRUCTION LIMITED | SC150486 | 24/05/2007 | Gold |
| MCLAUGHLIN & HARVEY HOLDINGS LIMITED | NI633962 | 01/10/2015 | Silver |
| MCLAUGHLIN & HARVEY LIMITED | NI027864 | 15/10/1993 | Silver |
| ROCKLYN ENGINEERING LIMITED | NI031928 | 05/12/2019 | Bronze |
| SARCON (NO. 375) LIMITED | NI625853 | 28/04/2017 | Gold |
| SARCON (NO.224) LIMITED | NI061088 | 29/11/2006 | Bronze |
| SOLWAY CRANE LIMITED | SC094158 | 24/05/2007 | Dissolved |
| SOLWAY ENGINEERS LIMITED | SC094159 | 24/05/2007 | Dissolved |
| TERRAPENS LIMITED | 08446069 | 31/01/2023 | One Red Flag |
| TRENCH HOLDINGS LIMITED | NI062850 | 27/04/2007 | Silver |
| W & J BARR & SONS (SCOTLAND) LIMITED | SC013396 | 24/05/2007 | Not Trading |
| WTB BEAUTY LIMITED | NI666386 | 09/12/2019 | Bronze |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BANGOR AND NENDRUM SCHOOLS SERVICES HOLDINGS LIMITED | NI056451 | 16/10/2006 | 19/03/2013 | Bronze |
| BANGOR AND NENDRUM SCHOOLS SERVICES LIMITED | NI054742 | 16/10/2006 | 19/03/2013 | Bronze |
| BREEDON AGGREGATES SW LIMITED | SC094144 | 24/05/2007 | 31/10/2014 | Silver |
| CONSTRUCTION EMPLOYERS FEDERATION LIMITED | NI001944 | 15/04/2003 | 21/12/2007 | Silver |
| STENA LINE PORTS (LOCH RYAN) LIMITED | SC286272 | 24/05/2007 | 08/10/2008 | Silver |
| WOOLGAR HUNTER LIMITED | SC142064 | 05/11/1993 | 01/07/1999 | One Red Flag |
| WOOLGAR HUNTER PROJECTS LIMITED | SC158532 | 05/07/1995 | 01/07/1999 | Not Trading |