| Novelty Design Intl Limited | Private company limited by shares | Live |
| NOWHERE DESIGN LIMITED | Private company limited by shares | Live |
| NUMBER 2 DESIGN LIMITED | Private company limited by shares | Live |
| GENUINE OASIS DESIGN COMPANY LIMITED | Private company limited by shares | Live |
| OASIST DESIGN LIMITED | Private company limited by shares | Live |
| OCEAN DESIGN COMPANY LIMITED | Private company limited by shares | Dissolved |
| SUN & OCEAN DESIGN LIMITED | Private company limited by shares | Live |
| OCEAN DESIGN COMPANY LIMITED | Private company limited by shares | Live |
| Oceanus Design Associate Limited | Private company limited by shares | Live |
| OCTAVO DESIGN LIMITED | Private company limited by shares | Dissolved |
| OCTOPUS DESIGN LIMITED | Private company limited by shares | Dissolved |
| Odio Design Limited | Private company limited by shares | Live |
| ODYSSEY DESIGN LIMITED | Private company limited by shares | Dissolved |
| ODYSSEY SPACE DESIGN LIMITED | Private company limited by shares | Live |
| CCO DESIGN OFFICE LIMITED | Private company limited by shares | Live |
| Y DESIGN OFFICE LIMITED | Private company limited by shares | Live |
| Design Office Limited | Private company limited by shares | Live |
| DaL Design Office Limited | Private company limited by shares | Live |
| CUPRIUM DESIGN OFFICE LIMITED | Private company limited by shares | Live |
| More Design Office Limited | Private company limited by shares | Live |
| More Design Office Limited | Private company limited by shares | Live |
| LJ PAN DESIGN & RESEARCH OFFICE LIMITED | Private company limited by shares | Live |
| TANABE DESIGN OFFICE COMPANY LIMITED | Private company limited by shares | Live |
| OFFICINA DESIGN LIMITED | Private company limited by shares | Live |
| OFFIT DESIGN LIMITED | Private company limited by shares | Live |
| OGMA Design Limited | Private company limited by shares | Live |
| O.I. DESIGN LIMITED | Private company limited by shares | Live |
| OKAY HOSTING NETWORK & DESIGN LIMITED | Private company limited by shares | Live |
| Olivares-Hotel Design Limited | Private company limited by shares | Live |
| Olivia Design Co., Limited | | Live |
| OMNI DESIGN LIMITED | Private company limited by shares | Dissolved |
| OMNI DESIGN LIMITED | Private company limited by shares | Live |
| ONE2PRINT DESIGN LIMITED | | Live |
| Onen Design Limited | | Live |
| ONLINE DESIGN LIMITED | Private company limited by shares | Live |
| OPAC DESIGN LIMITED | Private company limited by shares | Live |
| OPEN DESIGN COMPANY LIMITED | Private company limited by shares | Live |
| OPEN ENG. DESIGN LIMITED | Private company limited by shares | Live |
| Operce Design Limited | Private company limited by shares | Live |
| OPTIMISE DESIGN LIMITED | Private company limited by shares | Dissolved |
| OPTIMUM DESIGN LIMITED | Private company limited by shares | Dissolved |
| ORAMI DESIGN LIMITED | Private company limited by shares | Dissolved |
| ORBIT DESIGN LIMITED | Private company limited by shares | Dissolved |
| Orbit Design Holding Limited | Private company limited by shares | Live |
| Orient Design Limited | | Live |
| ORIENTAL DESIGN LIMITED | Private company limited by shares | Dissolved |
| ORIENTAL DESIGN & CONTRACTING CO., LIMITED | Private company limited by shares | Dissolved |
| Oriental Design Partners Limited | Private company limited by shares | Live |
| ORIG DESIGN LIMITED | Private company limited by shares | Live |
| ONE ORIGINAL DESIGN LIMITED | Private company limited by shares | Dissolved |
| ORIGINAL DESIGN LIMITED | Private company limited by shares | Live |
| FRENCH DESIGN ORIGINAL LIMITED | Private company limited by shares | Dissolved |
| Grand Original Design Limited | Private company limited by shares | Live |
| Original Design Uncut Company Limited | Private company limited by shares | Live |
| ORIGINAL VISION DESIGN LIMITED | Private company limited by shares | Live |
| ORIHIN DESIGN LIMITED | Private company limited by shares | Live |
| ORNAMENT DESIGN LIMITED | Private company limited by shares | Dissolved |
| ORNAMENT HK DESIGN CONSULTANTS LIMITED | Private company limited by shares | Live |
| OROLA TECHNOLOGY & DESIGN CO., LIMITED | Private company limited by shares | Dissolved |
| OSFO DESIGN LIMITED | Private company limited by shares | Live |
| OSIR DESIGN COMPANY LIMITED | Private company limited by shares | Live |
| OTWO DESIGN LIMITED | Private company limited by shares | Dissolved |
| OUSHI DESIGN LIMITED | Private company limited by shares | Live |
| OZURE DESIGN LIMITED | Private company limited by shares | Live |
| DK PACIFIC DESIGN LIMITED | Private company limited by shares | Dissolved |
| DESIGN PACIFIC LIMITED | Private company limited by shares | Dissolved |
| Pacific Design Limited | Private company limited by shares | Live |
| WA SIN PACKAGE DESIGN LIMITED | Private company limited by shares | Live |
| PACKET DESIGN HK LIMITED | Private company limited by shares | Dissolved |
| PACRIM DESIGN LIMITED | Private company limited by shares | Dissolved |
| GRAND PALACE DESIGN LIMITED | Private company limited by shares | Live |
| PALM DESIGN LIMITED | Private company limited by shares | Live |
| Palm Design Limited | | Live |
| PALMY DESIGN & CONTRACT LIMITED | Private company limited by shares | Dissolved |
| RED PANDA DESIGN LIMITED | Private company limited by shares | Live |
| PANDA DESIGN CONSULTANCY IN HK LIMITED | Private company limited by shares | Live |
| PANN DESIGN LIMITED | Private company limited by shares | Live |
| PAN-PACIFIC DESIGN & DISPLAY LIMITED | Private company limited by shares | Dissolved |
| Paperclip Design Limited | Private company limited by shares | Live |
| Paradise Design Limited | Private company limited by shares | Live |
| PARAGON DESIGN LIMITED | Private company limited by shares | Live |
| Parallel Design Limited | | Live |
| PARAMETRIX DESIGN LIMITED | Private company limited by shares | Live |
| PARAMOUNT DESIGN & CONTRACTING LIMITED | Private company limited by shares | Dissolved |
| Parkview Group Design and Architecture Limited | Private company limited by shares | Live |
| LIGHTING DESIGN PARTNERSHIP INTERNATIONAL ASIA LIMITED | Private company limited by shares | Dissolved |
| Pasha Design Limited | Private company limited by shares | Live |
| PASSION DESIGN LIMITED | Private company limited by shares | Live |
| PASSION JEWELLERY DESIGN COMPANY LIMITED | Private company limited by shares | Dissolved |
| FRI Design & Patents Limited | Private company limited by shares | Live |
| PAUL'S DESIGN LIMITED | Private company limited by shares | Dissolved |
| Pawlistic Design Limited | Private company limited by shares | Live |
| Peach Web Design Company Limited | Private company limited by shares | Live |
| PEAIR DESIGN LIMITED | Private company limited by shares | Dissolved |
| PEAIR DESIGN LIMITED | Private company limited by shares | Live |
| PEAK DESIGN LIMITED | Private company limited by shares | Dissolved |
| PEAK ART ADVERTISING & DESIGN COMPANY LIMITED | Private company limited by shares | Dissolved |
| VISION PEAK DESIGN COMPANY LIMITED | | Live |
| PEAKS TOYS DESIGN COMPANY LIMITED | Private company limited by shares | Live |
| PEAR DESIGN CO., LIMITED | Private company limited by shares | Live |