| DUNNING LIMITED | Private company limited by shares | Live |
| DUNNING AND ASSOCIATES LIMITED | Private company limited by shares | Dissolved |
| DUNNING AND ASSOCIATES (CANADA) LIMITED | Private company limited by shares | Dissolved |
| DUNNING HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| DUNNING (I.G.D.) & ASSOCIATES LIMITED | Private company limited by shares | Dissolved |
| DUNNING INDUSTRIES (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| P.P. DUNNING AND COMPANY LIMITED | Private company limited by shares | Dissolved |