| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| EXP ENGINEERING LIMITED | 06229379 | 31/07/2007 | Dissolved |
| EXP MANAGEMENT SERVICES LIMITED | 06229180 | 31/07/2007 | Dissolved |
| EXP METERING LIMITED | 06229376 | 31/07/2007 | Dissolved |
| Exp Power on Ltd | 06572588 | 29/04/2008 | Dissolved |
| Experientia Engineering Services Ltd | 04900228 | 18/09/2007 | Dissolved |
| INFRASTRUCTURE HOLDINGS EXP LIMITED | 06404898 | 22/10/2007 | Dissolved |
| Is Exp Ltd | 06334595 | 18/10/2007 | Dissolved |
| MVA CONSULTING LTD | 07838246 | 09/11/2011 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BAUHAUS MARKETING AND SALES LIMITED | 06363222 | 18/09/2007 | 30/09/2007 | Dissolved |
| Dimensions of Change Ltd | 04441029 | 31/07/2007 | 25/03/2009 | Dissolved |
| Exp Power on Ltd | 06572588 | 29/04/2008 | 26/02/2009 | Dissolved |
| Experientia Engineering Services Ltd | 04900228 | 31/07/2007 | 18/09/2007 | Dissolved |
| Experientia Group Ltd | 04325890 | 31/07/2007 | 25/03/2009 | Dissolved |
| TAYLOR MASON ENGINEERING LTD | 09924307 | 21/12/2015 | 01/06/2016 | Dissolved |
| TAYLOR MASON TRAINING AND DEVELOPMENT LTD | 07265224 | 26/05/2010 | 01/06/2016 | Not Trading |
| THAMES WATER DRAINAGE SERVICES LIMITED | 02435863 | 24/02/1997 | 28/02/2001 | Dissolved |
| THAMES WATER UTILITIES LIMITED | 02366661 | 01/01/2000 | 28/02/2001 | Amber |
| THE PIPELINE INDUSTRIES GUILD LIMITED | 02563351 | 02/06/1999 | 04/06/2003 | Silver |