| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Alistair Tucker, Halcrow & Associates Ltd. | 01734270 | 24/12/1991 | Dissolved |
| Halcrow (Offshore) | 01453599 | 15/11/1991 | Dissolved |
| Halcrow Energy Associates Ltd | 02157059 | 01/10/1991 | Dissolved |
| Halcrow-Balfour Ltd | 01409976 | 01/12/1991 | Dissolved |
| Halcrow-Balfour Ltd | 01409976 | 01/12/1991 | Dissolved |
| Halcrow-Ewbank Petroleum Offshore Engineering Co | 01225611 | 01/12/1991 | Dissolved |
| Mott-Halcrow Ltd | 01745794 | 01/11/1991 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|