| Nostomania Specialty Coffee Limited | | Live |
| Nostone Co., Limited | Private company limited by shares | Live |
| NOSTOP ELECTRIC CO., LIMITED | Private company limited by shares | Dissolved |
| Nostos Limited | | Live |
| CASA NOSTRA HK LIMITED | Private company limited by shares | Live |
| COSA NOSTRA LIMITED | Private company limited by shares | Live |
| NostraServices Limited | Private company limited by shares | Live |
| NOSTRS Company Limited | Private company limited by shares | Live |
| NOSTSOL LIMITED | | Live |
| NOSY CHAPEL LIMITED | Private company limited by shares | Live |
| N.O.T. FOOTWEAR CO., LIMITED | Private company limited by shares | Dissolved |
| N.O.T (HK) Company Limited | | Live |
| Not1D Company Limited | Private company limited by shares | Live |
| NOT4SALE LIMITED | | Live |
| Nota Limited | Private company limited by shares | Live |
| Uma Nota Limited | Private company limited by shares | Live |
| Nota Enterprises Limited | Private company limited by shares | Live |
| UMA NOTA RESTAURANT LIMITED | | Live |
| Notable Limited | Private company limited by shares | Live |
| NOTABLE FAME ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| NOTABLE SUCCESS LIMITED | Private company limited by shares | Dissolved |
| Notaboring Company Limited | Private company limited by shares | Live |
| NOTAKSHUN INDUSTRIAL Co., LIMITED | Private company limited by shares | Live |
| NOTAM ELECTRONIC CO., LIMITED | Private company limited by shares | Live |
| ad notam International Limited | Private company limited by shares | Live |
| NOTAM (INTERNATIONAL) LIMITED | Private company limited by shares | Live |
| Notanis Shipping Limited | Private company limited by shares | Dissolved |
| NOTAPENNA LIMITED | Private company limited by shares | Dissolved |
| NOTAREHS INTERNATIONAL CONSULTANT LIMITED | Private company limited by shares | Dissolved |
| Xiang Yuan Notarial Survey (China) Company Limited | Private company limited by shares | Live |
| NOTARICH INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| Global Notary Limited | Private company limited by shares | Live |
| HONG KONG NOTARY CO., LIMITED | Private company limited by shares | Live |
| Chan May T.M., Notary Public Office Limited | Private company limited by shares | Live |
| NOTATIONS LIMITED | Private company limited by shares | Dissolved |
| NOTATUS COMPANY LIMITED | Private company limited by shares | Dissolved |
| NOTAWIN INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| Notbur Limited | Private company limited by shares | Live |
| Notbut Limited | | Live |
| NOTCH COMPANY LIMITED | Private company limited by shares | Live |
| TOY NOTCH LIMITED | Private company limited by shares | Live |
| Top Notch Limited | Private company limited by shares | Live |
| Top Notch Limited | | Live |
| TOP NOTCH CO., LIMITED | Private company limited by shares | Dissolved |
| TOP NOTCH FURNITURE CO., LIMITED | Private company limited by shares | Live |
| Top Notch Label Co., Limited | Private company limited by shares | Live |
| TOP NOTCH EDUCATION COMPANY LIMITED | Private company limited by shares | Live |
| TOP NOTCH FASHION ACCESSORIES COMPANY LIMITED | Private company limited by shares | Dissolved |
| TOP NOTCH GROUP LIMITED | Private company limited by shares | Live |
| Top Notch Motorcycle Company Limited | | Live |
| TOP NOTCH REALTY LIMITED | Private company limited by shares | Live |
| TOP NOTCH TECH LIMITED | Private company limited by shares | Dissolved |
| TOP NOTCH TOYS LIMITED | Private company limited by shares | Live |
| Wolf Notch Limited | | Live |
| Notcher Limited | | Live |
| NEW NOTE LIMITED | Private company limited by shares | Dissolved |
| Note Beat Co., Limited | Private company limited by shares | Live |
| Note Lighting Co., Limited | Private company limited by shares | Live |
| Note Consult Limited | | Live |
| GOLD NOTE CORPORATION HONGKONG LIMITED | Private company limited by shares | Live |
| Green Note Development Company Limited | Private company limited by shares | Live |
| TREASURE NOTE DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| RICH NOTE DYEING FACTORY LIMITED | Private company limited by shares | Dissolved |
| Note Education Consultancy Limited | Private company limited by shares | Live |
| Future Note Capital Limited | Private company limited by shares | Live |
| GLORY NOTE LIMITED | Private company limited by shares | Live |
| GOLD NOTE LIMITED | Private company limited by shares | Dissolved |
| GOLDEN NOTE MUSIC LIMITED | Private company limited by shares | Dissolved |
| GOLDEN NOTE TECHNOLOGY LIMITED | Private company limited by shares | Live |
| GREEN NOTE LIMITED | Private company limited by shares | Live |
| NOTE (HONG KONG) CO., LIMITED -THE- | Private company limited by shares | Live |
| Ocean Note Hong Kong Limited | Private company limited by shares | Live |
| HONG KONG NOTE PRINTING LIMITED | Private company limited by shares | Live |
| KEY NOTE INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| Audio Note International Limited | Private company limited by shares | Live |
| FRANCE NOTE BOSS INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| LEADING NOTE LIMITED | Private company limited by shares | Live |
| ASIA NOTE RATING LIMITED | Private company limited by shares | Live |
| SILVER NOTE LIMITED | Private company limited by shares | Dissolved |
| TECH NOTE LIMITED | Private company limited by shares | Live |
| Musical Note Electronic Technology HK Co., Limited | Private company limited by shares | Live |
| Music Note Entertainment Technology Limited | | Live |
| Note Telecom (Hong Kong) Limited | Private company limited by shares | Live |
| NOTE BACKER TRADING LIMITED | Private company limited by shares | Live |
| UNIQUE NOTE LIMITED | Private company limited by shares | Live |
| WEALTHY NOTE LIMITED | Private company limited by shares | Live |
| note13 Company Limited | Private company limited by shares | Live |
| CTL NOTEBOOK LIMITED | Private company limited by shares | Dissolved |
| NOTEBOOK COLLECTOR LIMITED | Private company limited by shares | Dissolved |
| NOTEBOOKHK.COM LIMITED | Private company limited by shares | Dissolved |
| Notec Limited | Private company limited by shares | Live |
| NOTED INVESTMENTS COMPANY LIMITED | Private company limited by shares | Dissolved |
| Noteful Technology Limited | Private company limited by shares | Live |
| Notend Inc Limited | Private company limited by shares | Live |
| NOTEPAD LIMITED | Private company limited by shares | Dissolved |
| NOTES LIMITED | Private company limited by shares | Dissolved |
| HK Old Notes Limited | Private company limited by shares | Live |
| D&A Notes Limited | Public company limited by shares | Live |
| 2many Notes Limited | Private company limited by shares | Live |
| NOTES CAPITAL LIMITED | Private company limited by shares | Live |