| Company Name | Type | Status |
|---|---|---|
| BUCHAN INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| DAVID K. BUCHANAN & ASSOCIATES LIMITED | Private company limited by shares | Dissolved |
| Buchanan Capital Limited | Private company limited by shares | Live |
| BUCHANAN CAPITAL ONE LIMITED | Private company limited by shares | Live |
| NEIL BUCHANAN LIMITED | Private company limited by shares | Dissolved |
| BUCHANEN COMPANY LIMITED | Private company limited by shares | Dissolved |