| IPOHK.COM SECURITIES LIMITED | Private company limited by shares | Dissolved |
| ISLAND CITY SECURITIES LIMITED | Private company limited by shares | Dissolved |
| ISLAND PACIFIC SECURITIES LIMITED | Private company limited by shares | Dissolved |
| ISLANDWIDE SECURITIES LIMITED | Private company limited by shares | Dissolved |
| ITAU ASIA SECURITIES LIMITED | Private company limited by shares | Live |
| PIPER JAFFRAY ASIA SECURITIES LIMITED | Private company limited by shares | Dissolved |
| Securities (Japan) Limited | Private company limited by shares | Dissolved |
| RBS SECURITIES JAPAN LIMITED | Private company limited by shares | Live |
| JAPAN ASIA SECURITIES LIMITED | Private company limited by shares | Live |
| Citadel Securities Japan Limited | Private company limited by shares | Live |
| COMMERZ SECURITIES (JAPAN) COMPANY LIMITED | Public company limited by shares | Dissolved |
| Securities (Japan) Holding Limited | Private company limited by shares | Dissolved |
| NEW JAPAN SECURITIES INTERNATIONAL (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| JARDINE FLEMING SECURITIES (JAPAN) LIMITED | Private company limited by shares | Dissolved |
| NATIONAL SECURITIES OF JAPAN (ASIA) LIMITED | Private company limited by shares | Dissolved |
| JAPAN UNIVERSAL SECURITIES (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| JARDINE SECURITIES LIMITED | Private company limited by shares | Dissolved |
| JARDINE SECURITIES INVESTMENT COMPANY LIMITED | Private company limited by shares | Live Commenced dormancy on 22-Nov-2006 |
| JEBSEN SECURITIES LIMITED | Private company limited by shares | Live |
| JERSEY SECURITIES LIMITED | Private company limited by shares | Dissolved |
| JIMEI SECURITIES LIMITED | Private company limited by shares | Live |
| JING TAI SECURITIES LIMITED | Private company limited by shares | Live |
| JING TONG SECURITIES AND INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| JINKU SECURITIES LIMITED | Private company limited by shares | Live |
| JINLOU SECURITIES LIMITED | Private company limited by shares | Live |
| JINLUAN SECURITIES LIMITED | | Live |
| JinTai Securities Limited | Private company limited by shares | Live |
| JOINCAP SECURITIES LIMITED | Private company limited by shares | Live |
| J.S. SECURITIES LIMITED | Private company limited by shares | Dissolved |
| JUNHE SECURITIES LIMITED | Private company limited by shares | Dissolved |
| KAISER SECURITIES LIMITED | Private company limited by shares | Live |
| KANAMICHI SECURITIES LIMITED | Private company limited by shares | Dissolved |
| KANGQIAN SECURITIES LIMITED | Private company limited by shares | Live |
| KANKAKU SECURITIES (ASIA) LIMITED | Private company limited by shares | Dissolved |
| KARFORD SECURITIES LIMITED | Private company limited by shares | Live |
| KARL-THOMSON SECURITIES COMPANY LIMITED | Private company limited by shares | Live |
| KEITH SECURITIES LIMITED | Private company limited by shares | Dissolved |
| KERRY SECURITIES RESEARCH CO. LIMITED | Private company limited by shares | Dissolved |
| KILMOREY SECURITIES LIMITED | Private company limited by shares | Live |
| TAI KING SECURITIES COMPANY LIMITED | Private company limited by shares | Live |
| KING FOOK SECURITIES COMPANY LIMITED | Private company limited by shares | Live |
| King International Securities Limited | Private company limited by shares | Live |
| MONKEY KING SECURITIES LIMITED | Private company limited by shares | Live |
| KINGSLEY SECURITIES LIMITED | Private company limited by shares | Live |
| KINGSTON SECURITIES LIMITED | Private company limited by shares | Live |
| Kingsway SW Securities Limited | Private company limited by shares | Live Commenced dormancy on 26-Jul-2016 |
| KIRIN SECURITIES LIMITED | Private company limited by shares | Live |
| Knight Securities Limited | Private company limited by shares | Live |
| KOALA SECURITIES LIMITED | Private company limited by shares | Live |
| KONGSON SECURITIES LIMITED | Private company limited by shares | Live |
| Citadel Securities Korea Limited | Private company limited by shares | Live |
| KOREA INVESTMENT & SECURITIES ASIA LIMITED | Private company limited by shares | Live |
| KO'S BROTHER SECURITIES COMPANY LIMITED | Private company limited by shares | Live |
| HK KOWLOON FIRST SECURITIES COMPANY LIMITED | Private company limited by shares | Live |
| Krystone Securities Limited | | Live |
| ZHU KUAN SECURITIES LIMITED | Private company limited by shares | Dissolved |
| KVB Kunlun Securities (HK) Limited | Private company limited by shares | Live |
| KAM KWONG SECURITIES COMPANY LIMITED | Private company limited by shares | Dissolved |
| DBS KWONG ON SECURITIES LIMITED | Private company limited by shares | Dissolved |
| KWONG FAT HONG (SECURITIES) LIMITED | Private company limited by shares | Live |
| MAN KWONG HONG SECURITIES LIMITED | Private company limited by shares | Live |
| Kylin Securities Limited | Private company limited by shares | Live |
| KYOKUTO SECURITIES (ASIA) LIMITED | Private company limited by shares | Dissolved |
| LAERTES SECURITIES COMPANY LIMITED | Private company limited by shares | Live |
| LAMTEX SECURITIES LIMITED | Private company limited by shares | Live |
| PARK LANE SECURITIES LIMITED | Private company limited by shares | Live |
| Lapland Securities Limited | Private company limited by shares | Live |
| LARGS SECURITIES LIMITED | Private company limited by shares | Dissolved |
| LAVENHILL SECURITIES LIMITED | Private company limited by shares | Live |
| LAVERACK SECURITIES LIMITED | Private company limited by shares | Dissolved |
| LAWTON SECURITIES COMPANY LIMITED | Private company limited by shares | Dissolved |
| Lazarus Securities Limited | Private company limited by shares | Live |
| ON LEADER SECURITIES COMPANY LIMITED | Private company limited by shares | Dissolved |
| LECTERN SECURITIES LIMITED | Private company limited by shares | Dissolved |
| LEE'S SECURITIES COMPANY LIMITED | Private company limited by shares | Live |
| Lego Securities Limited | Private company limited by shares | Live |
| Lego Securities Limited | Private company limited by shares | Live |
| LEHIN SECURITIES LIMITED | Private company limited by shares | Live |
| PAN ASIA SECURITIES LENDING ASSOCIATION LIMITED | Company limited by guarantee | Live |
| AIG GLOBAL SECURITIES LENDING (ASIA) LIMITED | Private company limited by shares | Dissolved |
| LERONG SECURITIES LIMITED | Private company limited by shares | Live |
| LESGOW SECURITIES LIMITED | Private company limited by shares | Dissolved |
| Hua Liang Securities Limited | Private company limited by shares | Live |
| LIANHUA SECURITIES LIMITED | | Live |
| LIBERTON SECURITIES LIMITED | Private company limited by shares | Dissolved |
| ECM LIBRA SECURITIES LIMITED | Private company limited by shares | Dissolved |
| Libra Securities Limited | Private company limited by shares | Live |
| LIBRA ASIA SECURITIES LIMITED | Private company limited by shares | Live |
| LIGHT HOUSE SECURITIES LIMITED | Private company limited by shares | Live |
| NORTHERN LIGHT SECURITIES LIMITED | Private company limited by shares | Live |
| Wealth Link Securities Limited | Private company limited by shares | Live |
| Well Link Securities Limited | Private company limited by shares | Live |
| LINKS Capital Securities Limited | Private company limited by shares | Live |
| LINTEL SECURITIES LIMITED | Private company limited by shares | Live |
| LIONS SECURITIES STOCK LIMITED | Private company limited by shares | Live |
| LIPPO SECURITIES LIMITED | Private company limited by shares | Live |
| Livermore Securities Limited | Private company limited by shares | Live |
| Livermore Securities AI Trade in Stocks Limited | Private company limited by shares | Live |
| LLOYD SECURITIES COMPANY LIMITED | Private company limited by shares | Dissolved |
| PHOENIX LLOYD SECURITIES LIMITED | Private company limited by shares | Dissolved |