| Company Name | Type | Status |
|---|---|---|
| Duff & Pheleps Company Limited | Private company limited by shares | Live |
| DUFF & PHELEPS INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| DUFF & PHELEPS CREDIT RATINGS INVESTORS SERVICE CO., LIMITED | Private company limited by shares | Dissolved |
| Duff & Pheleps Credit Ratings Investors Service Limited | Private company limited by shares | Live |