| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| A.V. DAWSON HOLDINGS LIMITED | 03658273 | 01/04/2016 | Silver |
| A.V. DAWSON TRANSPORT LTD | 12374490 | 20/12/2019 | Bronze |
| A.V.DAWSON LIMITED | 00626633 | 10/03/2008 | Silver |
| AVD INDUSTRIAL AND PORT SERVICES LTD | 12374094 | 20/12/2019 | Not Trading |
| COBRA MIDDLESBROUGH LIMITED | 03841290 | 31/08/2022 | Bronze |
| COCKFIELD, KNIGHT & COMPANY LIMITED | 07204485 | 26/03/2010 | Bronze |
| DAWSON (TEES WHARF) LIMITED | 02788401 | 01/04/2016 | Not Trading |
| MIDDLESBROUGH PORT LTD | 12349801 | 05/12/2019 | Not Trading |
| MILLSERVE TEESSIDE LIMITED | 07495437 | 17/01/2011 | Dissolved |
| PORT MIDDLESBROUGH LTD | 12863479 | 07/09/2020 | Not Trading |
| PORT OF MIDDLESBROUGH LTD | 12349574 | 05/12/2019 | Not Trading |
| TEES VALLEY COATINGS LIMITED | 06935758 | 16/06/2009 | Dissolved |
| W.G. THOMAS & CO. LIMITED | 00535825 | 12/03/2016 | Not Trading |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| TEES VALLEY TRAILERS LIMITED | 05312023 | 19/05/2011 | 28/02/2020 | Not Trading |