| KOOLS COMPANY LIMITED | Private company limited by shares | Dissolved |
| KOOLSEE MEDIANET CORP LIMITED | Private company limited by shares | Live |
| KOOLSHADE PRECISION LIMITED | Private company limited by shares | Dissolved |
| KOOLSHOP COMPANY LIMITED | Private company limited by shares | Dissolved |
| Koolsupply Limited | Private company limited by shares | Live |
| KOOLTOOLS LIMITED | Private company limited by shares | Live |
| KOOLUCK LIMITED | Private company limited by shares | Live |
| KOOLY LIMITED | | Live |
| Koolyn Electronic Co., Limited | Private company limited by shares | Dissolved |
| KOOLZONE (ASIA) LIMITED | Private company limited by shares | Dissolved |
| KOOM LIMITED | Private company limited by shares | Live |
| HK KOOMA TRADING LIMITED | | Live |
| KOOMAK GROUP LIMITED | Private company limited by shares | Live |
| KOOMALL TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| Koomango Limited | Private company limited by shares | Live |
| KOOMARK CONSULTING CO., LIMITED | Private company limited by shares | Live |
| Koomars Auto Accessory Co., Limited | Private company limited by shares | Live |
| KOOMAX DIGITAL CO., LIMITED | Private company limited by shares | Dissolved |
| HK KOOMI CO ., LIMITED | Private company limited by shares | Live |
| KOOMI TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| KOOMOOLOO Limited | Private company limited by shares | Live |
| KOOMY E-COMMERCE LIMITED | | Live |
| KOON WAH LAU LIMITED | Private company limited by shares | Dissolved |
| KOON FAT COMPANY, LIMITED | Private company limited by shares | Dissolved |
| KAM LAN KOON | Company limited by guarantee | Live |
| KOON LEE LIMITED | Private company limited by shares | Dissolved |
| KOON HO COMPANY LIMITED | Private company limited by shares | Live |
| KOON KAI COMPANY LIMITED | Private company limited by shares | Dissolved |
| KOON MAI COMPANY LIMITED | Private company limited by shares | Live |
| DIK KOON COMPANY LIMITED | Private company limited by shares | Dissolved |
| KOON LOI COMPANY LIMITED | Private company limited by shares | Live |
| KOON WO COMPANY LIMITED | Private company limited by shares | Live |
| LUK YAM SIN KOON LIMITED | Company limited by guarantee | Dissolved |
| KOON FAI COMPANY LIMITED | Private company limited by shares | Dissolved |
| KOON HEI LIMITED | Private company limited by shares | Live |
| KOON & COMPANY LIMITED | Private company limited by shares | Dissolved |
| KOON TAK LIMITED | Private company limited by shares | Dissolved |
| WAN FOU SIN KOON COMPANY LIMITED | Company limited by guarantee | Dissolved |
| KAM KOON COMPANY LIMITED | Private company limited by shares | Dissolved |
| SIU KOON COMPANY LIMITED | Private company limited by shares | Dissolved |
| YAU KOON LIMITED | Private company limited by shares | Dissolved |
| KOON LIN LIMITED | Private company limited by shares | Live |
| KOON BIN LIMITED | Private company limited by shares | Dissolved |
| KOON YUI COMPANY LIMITED | Private company limited by shares | Dissolved |
| KOON KEI COMPANY LIMITED | Private company limited by shares | Dissolved |
| KOON YEE COMPANY LIMITED | Private company limited by shares | Live |
| TAK TIN KOON YIP LIMITED | Private company limited by shares | Dissolved |
| FAN KOON LIMITED | Private company limited by shares | Dissolved |
| HAN KOON LIMITED | Private company limited by shares | Dissolved |
| KOON BOW LIMITED | Private company limited by shares | Dissolved |
| KOON RAY LIMITED | Private company limited by shares | Dissolved |
| KOON KEE LIMITED | Private company limited by shares | Dissolved |
| YIN KOON LIMITED | Private company limited by shares | Dissolved |
| KOON WAI COMPANY LIMITED | Private company limited by shares | Dissolved |
| TSZ NAM KOON LIMITED | Private company limited by shares | Live |
| WAH KOON COMPANY LIMITED | Private company limited by shares | Dissolved |
| AMY KOON COMPANY LIMITED | Private company limited by shares | Live |
| KOON LOK TAT LIMITED | Private company limited by shares | Dissolved |
| Lee Koon Kay Company Limited | Private company limited by shares | Live |
| KOON YAU LIMITED | Private company limited by shares | Live |
| WAH TOI KOON COMPANY LIMITED | Private company limited by shares | Live |
| Koon Limited | Private company limited by shares | Live |
| KAM KOON LIMITED | Private company limited by shares | Live |
| KOON LAU Company Limited | Private company limited by shares | Live |
| KA KOON LIMITED | Private company limited by shares | Live |
| Koon Tat Kai Limited | Private company limited by shares | Live |
| LUK KOON LIMITED | Private company limited by shares | Live |
| HEY KOON LIMITED | Private company limited by shares | Live |
| Koon Kau Limited | | Live |
| LOK MUI KOON LIMITED | | Live |
| KOON FAI ADVERTISING LIMITED | Private company limited by shares | Dissolved |
| KOON WA ASSOCIATE COMPANY LIMITED | Private company limited by shares | Dissolved |
| KOON NAM ASSOCIATION LIMITED | Company limited by guarantee | Dissolved |
| KAM KOON ASSOCIATION LIMITED | Company limited by guarantee | Dissolved |
| KOON ON ASSOCIATION LIMITED | Company limited by guarantee | Dissolved |
| LIN HOK SIN KOON GENERAL ASSOCIATION LIMITED | Company limited by guarantee | Live |
| TUNG KOON YOUTHS OF NEW TERRITORIES ATHLETIC ASSOCIATION LIMITED | Company limited by guarantee | Live |
| KOON CARD LIMITED | Private company limited by shares | Dissolved |
| KOON CHANGE LIMITED | Private company limited by shares | Dissolved |
| KOON FUNG SHAN JUNG CHINESE MEDICINE LIMITED | Private company limited by shares | Dissolved |
| FUK CHIU WEI WUI KOON LIMITED | Private company limited by shares | Dissolved |
| CHOW KOON COMPANY LIMITED | Private company limited by shares | Dissolved |
| KOON CHUEN LIMITED | Private company limited by shares | Dissolved |
| MAN CHUEN KOON COMPANY LIMITED | Private company limited by shares | Dissolved |
| WAH CHUNG SIN KOON LIMITED | Company limited by guarantee | Live |
| KOON CHUNG LIMITED | Private company limited by shares | Live |
| KOON CHUNG INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| CHUNG & KOON PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| KOON KAU DRY CLEANING COMPANY LIMITED | Private company limited by shares | Dissolved |
| TUNG KOON CLEARBROOK OX-LAKE VILLAGE LEE CLANSMEN ASSOCIATION LIMITED | Company limited by guarantee | Dissolved |
| KOON FOOK DEVELOPMENTS LIMITED | Private company limited by shares | Live |
| TUNG KOON DISTRICT GENERAL ASSOCIATION FANLING BRANCH LIMITED | Company limited by guarantee | Live |
| TUNG KOON DISTRICT GENERAL ASSOCIATION TAI PO BRANCH LIMITED | Company limited by guarantee | Live |
| TUNG KOON DISTRICT GENERAL ASSOCIATION EDUCATION FUND LIMITED -THE- | Company limited by guarantee | Live |
| TUNG KOON DISTRICT GENERAL ASSOCIATION TUEN MUN BRANCH LIMITED | Company limited by guarantee | Live |
| TUNG KOON DISTRICT ASSOCIATION YUEN LONG BRANCH ASSOCIATION LIMITED | Company limited by guarantee | Live |
| The Tung Koon District General Association (Sun Tin Koo Tung Branch) Limited | | Live |
| TUNG KOON DISTRICT GENERAL ASSOCIATION TSUEN WAN BRANCH LIMITED | Company limited by guarantee | Live |
| KOON DOLLY COMPANY LIMITED | Private company limited by shares | Live |
| DRAGON KOON COMPANY LIMITED | Private company limited by shares | Dissolved |