| KELVIN LIMITED | Private company limited by shares | Dissolved |
| KELVIN LIMITED | Private company limited by shares | Live |
| Kelvin Limited | Private company limited by shares | Live |
| Kelvin HK Limited | Private company limited by shares | Live |
| KELVIN INSURANCE AGENCY LIMITED | Private company limited by shares | Dissolved |
| KELVIN TAM AND ASSOCIATES LIMITED | Private company limited by shares | Dissolved |
| KELVIN TAM & ASSOCIATES LIMITED | Private company limited by shares | Live |
| KELVIN ASSOCIATION LIMITED | Company limited by guarantee | Dissolved |
| CASA DE KELVIN COMPANY LIMITED | Private company limited by shares | Live |
| KELVIN CHANG INVESTMENT CO., LIMITED | Private company limited by shares | Live |
| KELVIN (CHINA) CO., LIMITED | Private company limited by shares | Live |
| CHOW CHI WAI KELVIN LIMITED | | Live |
| Virtus Dr Kelvin K. L. Ho Clinic Limited | Private company limited by shares | Live |
| Kelvin Collections Limited | Private company limited by shares | Live |
| Dr Kelvin Tam Consultancy Limited | | Live |
| KELVIN CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| Kelvin Lai Pet Consultation Limited | Private company limited by shares | Live |
| DR. KELVIN TY NG DENTAL LIMITED | Private company limited by shares | Live |
| KELVIN FAR EAST LIMITED | Private company limited by shares | Live |
| KELVIN ELECTRONICS COMPANY LIMITED | Private company limited by shares | Live |
| KELVIN & KENT ENGINEERING (TRADING) COMPANY LIMITED | Private company limited by shares | Dissolved |
| KELVIN ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| KELVIN ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| KELVIN GARMENT FACTORY LIMITED | Private company limited by shares | Dissolved |
| KELVIN KA WAH FILM PICTURES LIMITED | Private company limited by shares | Live |
| KELVIN GARMENT LIMITED | Private company limited by shares | Dissolved |
| KELVIN & CO. (H.K.) LIMITED | Private company limited by shares | Dissolved |
| KELVIN MAU (H.K.) LIMITED | Private company limited by shares | Live |
| KELVIN INT'L (HK) IMP & EXP LIMITED | Private company limited by shares | Live |
| KELVIN INSURANCE AGENCY (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| KELVIN (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| Hong Kong Kelvin Investment Management Limited | | Live |
| KELVIN INTERNATIONAL INDUSTRY LIMITED | Private company limited by shares | Live |
| KELVIN INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| FC. KELVIN INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| KELVIN INTERNATIONAL CO. LIMITED | Private company limited by shares | Dissolved |
| KELVIN INTERNATIONAL LIMITED | Private company limited by shares | Live |
| KELVIN N&G INTERNATIONAL LIMITED | Private company limited by shares | Live |
| KELVIN LAI INTERNATIONAL LIMITED | Private company limited by shares | Live |
| KELVIN INVESTMENT LIMITED | Private company limited by shares | Live |
| KELVIN & KENNETH INTERNATIONAL INVESTMENT LIMITED | Private company limited by shares | Live |
| Kelvin Investments Limited | | Live |
| Jenny & Kelvin Investments Limited | Private company limited by shares | Live |
| KELVIN & MARK LIMITED | Private company limited by shares | Dissolved |
| KELVIN METALWARES COMPANY LIMITED | Private company limited by shares | Live |
| KELVIN MOTORS LIMITED | Private company limited by shares | Dissolved |
| Kelvin Luk Production Limited | | Live |
| KELVIN PRECISION PRODUCTS COMPANY LIMITED | Private company limited by shares | Live |
| KELVIN KONG STUDIO LIMITED | | Live |
| KELVIN (HK) TECH CO., LIMITED | Private company limited by shares | Live |
| KELVIN TECHNOLOGY GROUP CO., LIMITED | Private company limited by shares | Dissolved |
| Kelvin Tourism Investment Limited | Private company limited by shares | Live |
| BEAUTY KELVIN TRADING 1 LIMITED | | Live |
| BEAUTY KELVIN TRADING 2 LIMITED | | Live |
| BEAUTY KELVIN TRADING 3 LIMITED | | Live |
| BEAUTY KELVIN TRADING 4 LIMITED | | Live |
| BEAUTY KELVIN TRADING 5 LIMITED | | Live |
| KELVIN ELECTRIC TRADING COMPANY LIMITED | Private company limited by shares | Live |
| KELVIN TRADING AND GARMENT FACTORY LIMITED | Private company limited by shares | Dissolved |
| Kelvin Yan International Trading Limited | | Live |
| VINCENT KELVIN COMPANY LIMITED | Private company limited by shares | Dissolved |
| Kelvin Wealthy Limited | Private company limited by shares | Live |
| Kelvin & Wensley International Limited | Private company limited by shares | Live |
| KELVIN WONG EDUCATION CENTER LIMITED | Private company limited by shares | Live |
| Kelvin Wong Restaurant (H.K.) Limited | | Live |
| KELVINGHAM LIMITED | Private company limited by shares | Dissolved |
| KELVINH LIMITED | | Live |
| KELVINLAM 1 LIMITED | | Live |
| KELVINLAM 2 LIMITED | | Live |
| KELVINLAM 3 LIMITED | | Live |
| KELVINLAM 4 LIMITED | | Live |
| KELVINLONGDEUX COMPANY LIMITED | Private company limited by shares | Live |
| KELVINLONGQUATRE COMPANY LIMITED | Private company limited by shares | Live |
| KELVINLONGTROIS COMPANY LIMITED | Private company limited by shares | Live |
| KELVINLONGUN COMPANY LIMITED | Private company limited by shares | Live |
| KELVIN'S CLIENT INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| KELVIN'S FASHION MANUFACTURING LIMITED | Private company limited by shares | Dissolved |
| KELVIN'S GROUP COMPANY LIMITED | Private company limited by shares | Dissolved |
| KELVIN'S KITCHEN COMPANY LIMITED | Private company limited by shares | Live Commenced dormancy on 24-Nov-2015 |
| Kelvin's Landscapes Limited | Private company limited by shares | Live |
| KELVIN'S PHYSIOTHERAPY LIMITED | Private company limited by shares | Live |
| Kelvins Thermal Technology Co., Limited | | Live |
| KELVINSIDE LIMITED | Private company limited by shares | Dissolved |
| KELVINSIDE INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| Kelvintek Limited | Private company limited by shares | Live |