| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ASA CONSULTING ENGINEERS LIMITED | 07380086 | 06/12/2011 | Dissolved |
| AUTO MARINE SPECIALISTS LIMITED | 02119876 | 01/01/2007 | Dissolved |
| BASEEFA (2001) LIMITED | 01785009 | 06/12/2011 | Dissolved |
| BASEEFA CERTIFICATION LIMITED | 06548707 | 06/12/2011 | Dissolved |
| CARGO SUPERINTENDENTS(LONDON)LIMITED | 00193683 | 01/01/2007 | Dissolved |
| ENVIRONMENTAL ADVISORY UNIT LIMITED | SC084281 | 01/01/2007 | Dissolved |
| JONES BROS. RUTHIN (CIVIL ENGINEERING) CO. LIMITED | 00983459 | 29/11/2023 | Silver |
| QUALITY CONTROL INTERNATIONAL LIMITED | 01088662 | 01/01/2007 | Dissolved |
| REDWOOD INTERNATIONAL CONSULTANTS LIMITED | 00976167 | 01/01/2007 | Dissolved |
| SGS CONTINUATION LIMITED | SC062690 | 01/01/2007 | Dissolved |
| SGS ENVIRONMENT LIMITED | 01995411 | 01/01/2007 | Dissolved |
| SGS FIELD SERVICES LTD. | 01124524 | 01/01/2007 | Dissolved |
| SGS INSPECTION SERVICES LIMITED | 01838573 | 01/01/2007 | Dissolved |
| SGS INTERNATIONAL CERTIFICATION SERVICES LTD | 02267689 | 01/01/2007 | Dissolved |
| SGS REDWOOD (UK) LIMITED | 00799263 | 01/01/2007 | Dissolved |
| SGS SILVICONSULT LIMITED | 02614040 | 01/01/2007 | Dissolved |
| SGS STRATH SERVICES LTD | 02463922 | 01/01/2007 | Dissolved |
| SGS TELECOMMUNICATIONS EUROPE LIMITED | 04165129 | 12/09/2006 | Dissolved |
| SGS YARSLEY INTERNATIONAL CERTIFICATION SERVICES LTD | 01941398 | 01/01/2007 | Dissolved |
| SGS YARSLEY LTD. | 01061513 | 01/01/2007 | Dissolved |
| STORK SOFTWARE LIMITED | 03458829 | 06/04/2019 | Silver |
| WOOL TESTING SERVICES INTERNATIONAL LIMITED | 00699744 | 01/01/2007 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| SGS ASHBY LTD | 06751823 | 15/04/2015 | 08/02/2019 | Amber |
| SGS BASEEFA LIMITED | 04305578 | 06/12/2011 | 08/02/2019 | Gold |
| SGS CORREL RAIL LIMITED | 04148618 | 15/06/2011 | 08/02/2019 | Dissolved |
| SGS HOLDING UK LTD | 03662386 | 01/01/2007 | 08/02/2019 | Amber |
| SGS LEICESTER LIMITED | 01962425 | 04/07/2017 | 08/02/2019 | Dissolved |
| SGS M-SCAN LIMITED | 01414639 | 27/10/2010 | 08/02/2019 | Not Trading |
| SGS MINERALS SERVICES UK LTD | 04356791 | 05/12/2008 | 08/02/2019 | Dissolved |
| SGS MIS ENVIRONMENTAL LTD | 04183187 | 30/08/2013 | 08/02/2019 | Not Trading |
| SGS MIS TESTING LTD | 08382100 | 30/08/2013 | 08/02/2019 | Not Trading |
| SGS OVERSEAS HOLDINGS LIMITED | 00463506 | 01/01/2007 | 08/02/2019 | Dissolved |
| SGS ROPLEX LIMITED | 02583238 | 08/02/2012 | 08/02/2019 | Dissolved |
| SGS UNITED KINGDOM LIMITED | 01193985 | 01/01/2007 | 08/02/2019 | Silver |
| SGS VERNOLAB UK LTD | 04419835 | 01/01/2007 | 08/02/2019 | Dissolved |
| SGS VITROLOGY LIMITED | SC306871 | 18/05/2012 | 08/02/2019 | Gold |