| Saint Novel Biotech Limited | | Live |
| NovoHealth Biotech Company Limited | Private company limited by shares | Live |
| Nuance Biotech Limited | Private company limited by shares | Live |
| Nucleus Biotech Limited | Private company limited by shares | Live |
| NUSUN BIO-TECH COMPANY LIMITED | Private company limited by shares | Dissolved |
| NutraReal Biotech Limited | Private company limited by shares | Live |
| NUTRIGENEAI BIOTECH LIMITED | | Live |
| O2MAY BIOTECH LIMITED | | Live |
| Oasis Biotech Corporation Limited | Private company limited by shares | Live |
| Oculgen Biotech Limited | | Live |
| OMAN PHARMACEUTICALS & BIOTECH LIMITED | Private company limited by shares | Live |
| OMNI BIOTECH LIMITED | Private company limited by shares | Live |
| OMSSI Biotech Limited | Private company limited by shares | Live |
| OnkoSys Biotech Limited | Private company limited by shares | Live |
| OrbusNeich Biotech Company Limited | Private company limited by shares | Live |
| OREGON BIOTECH COMPANY LIMITED | Private company limited by shares | Dissolved |
| SO ORGANIC BIOTECH ENTERPRISE LIMITED | Private company limited by shares | Live |
| AMAZY ORGNAICS BIOTECH LIMITED | Private company limited by shares | Live |
| ORIENTAL BIOTECH (H.K.) LIMITED | Private company limited by shares | Live |
| Orimmune BioTech Limited | | Live |
| Orion BioTech Limited | Private company limited by shares | Live |
| Oristry BioTech (HK) Limited | Private company limited by shares | Live |
| Ourea Biotech HK Limited | Private company limited by shares | Live |
| AGRIA BIOTECH OVERSEAS LIMITED | Private company limited by shares | Live |
| Pacific BioTech Company Limited | | Live |
| ASIA PACIFIC BIOTECH PTE LIMITED | Private company limited by shares | Live |
| BIOTECH ASIA PACIFIC LIMITED | Private company limited by shares | Dissolved |
| Pakway Biotech Limited | Private company limited by shares | Live |
| Reina Palace Bio-Tech Company Limited | Private company limited by shares | Live |
| PALLAS BIOTECH CO., LIMITED | | Live |
| PANDORA BIO-TECH COMPANY LIMITED | Private company limited by shares | Dissolved |
| PANLONG BIO-TECH COMPANY LIMITED | Private company limited by shares | Dissolved |
| Park Biotech Co Limited | Private company limited by shares | Live |
| Dutch Parx Bionic Biotech Co., Limited | | Live |
| Pavilion Bio-tech Limited | Private company limited by shares | Live |
| Pentaweft Biotech Limited | Private company limited by shares | Live |
| FU PEPTIDE BIOTECH EQUIPMENT COMPANY LIMITED | Private company limited by shares | Live |
| Peri Biotech Co., Limited | Private company limited by shares | Live |
| HK PERIVERRY BIOTECH LIMITED | Private company limited by shares | Live |
| HK PERIVERRY BIOTECH LIMITED | | Live |
| BIO-TECH PHARM GROUP LIMITED | Private company limited by shares | Dissolved |
| XIUZHENG PHARM BIOTECH LIMITED | Private company limited by shares | Live |
| Thomson Biotech Pharmaceutical Company Limited | | Live |
| BIO-TECH PHARMACEUTICALS LIMITED | Private company limited by shares | Dissolved |
| Nordia Biotech & Pharmaceuticals HK Limited | | Live |
| PHARMASYS BIOTECH LIMITED | Private company limited by shares | Dissolved |
| Pharmolux Biotech International Limited | | Live |
| Phyto Biotech Limited | | Live |
| Pinnacle Biotech Limited | Private company limited by shares | Live |
| HONG KONG PIONEER (BIO-TECH) COMPANY LIMITED | Private company limited by shares | Live |
| Plantel Biotech Company Limited | Private company limited by shares | Live |
| CARE PLUS BIOTECH LIMITED | Private company limited by shares | Live Commenced dormancy on 27-Jan-2016 |
| Pluslife Biotech Limited | | Live |
| POLY BIOTECH (HK) Co. LIMITED | Private company limited by shares | Live |
| POSIN BIOTECH INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| POWER BIO-TECH LIMITED | Private company limited by shares | Dissolved |
| PRANOVO BIOTECH CO., LIMITED | Private company limited by shares | Live |
| Precisionfeed Biotech Company Limited | | Live |
| Prelab Biotech Limited | Private company limited by shares | Live |
| Premier Bio-Tech Limited | | Live |
| Primemax Biotech Limited | Private company limited by shares | Live |
| HK PRIMETIMES BIO-TECH. CO. LIMITED | Private company limited by shares | Dissolved |
| PRIMUS BIOTECH COMPANY LIMITED | Private company limited by shares | Live |
| SANSH BIOTECH PRIVATE LIMITED | Private company limited by shares | Live |
| PROCEPT BIOTECH (HK) COMPANY LIMITED | Private company limited by shares | Live |
| PROEXACT BIOTECH LIMITED | Private company limited by shares | Dissolved |
| PROGVT BIOTECH (HK) LIMITED | Private company limited by shares | Live |
| ProLife Biotech Limited | | Live |
| PROSPEROUS BIOTECH COMPANY LIMITED | Private company limited by shares | Live |
| JI SI DUN BIO-TECH PUBLISHING LIMITED | Private company limited by shares | Live |
| Pumont Biotech (Hongkong) Company Limited | Private company limited by shares | Live |
| PURE NMN BIOTECH LIMITED | | Live |
| Pure Innovation Biotech Limited | Private company limited by shares | Live |
| PURE NATURE BIO-TECH LIMITED | Private company limited by shares | Live |
| PURELIFE BIOTECH COMPANY LIMITED | Private company limited by shares | Dissolved |
| Puressence Biotech Limited | Private company limited by shares | Live |
| PURESSENCE BIO-TECH (HONGKONG) LIMITED | Private company limited by shares | Live |
| Qibang Biotech (HongKong) Limited | Private company limited by shares | Live |
| Qragen Biotech (HK) Limited | Private company limited by shares | Live |
| HK QUADRUPLE U BIOTECH LIMITED | Private company limited by shares | Live |
| QUAN XIN BIO-TECH LIMITED | Private company limited by shares | Live |
| HK GOLD QUEEN GROUP BIOTECH LIMITED | Private company limited by shares | Live |
| Art Queen Bio-Tech (HK) Co Limited | Private company limited by shares | Live |
| Quinn Wen Biotech Limited | Private company limited by shares | Live |
| Raffles Biotech GP I Limited | Private company limited by shares | Live |
| HK RajaBorneo Biotech Limited | Private company limited by shares | Live |
| RAPID DIAGNOSTIC BIOTECH. CO., LIMITED | Private company limited by shares | Live |
| Jetfast Rapid Diagnostic Biotech Limited | | Live |
| RAYTRED Biotech Co Limited | Private company limited by shares | Live |
| RBCHEM BIO-TECH LIMITED | Private company limited by shares | Live |
| Reach Biotech HK Limited | | Live |
| Real-Gene Biotech Co., Limited | Private company limited by shares | Live |
| REBLOOD Biotech Limited | Private company limited by shares | Live |
| REFINE BIOTECH LIMITED | Private company limited by shares | Live |
| Bay Regenomics Biotech Limited | | Live |
| ROYAL REGIMEN BIOTECH (HONG KONG) COMPANY LIMITED | Private company limited by shares | Live |
| ReGreenland Biotech (HK) Limited | Private company limited by shares | Live |
| Reichstein Biotech (HK) Co. Limited | Private company limited by shares | Live |
| RELIBO (HK) BIOTECH LIMITED | Private company limited by shares | Live |
| ReNuStem Biotech Limited | Private company limited by shares | Live |