| SE'O TECHNOLOGY (HK) HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| Today Super S.E.O Limited | Private company limited by shares | Live |
| SEO1CLICK LIMITED | Private company limited by shares | Live |
| SEOAM ELECTRONICS (HK) LIMITED | Private company limited by shares | Live |
| SEObanda Limited | | Live |
| SEOBEAN(HK)INTERNATIONAL LIMITED | Private company limited by shares | Live |
| Seocon Limited | Private company limited by shares | Live |
| Seoda Inc Limited | Private company limited by shares | Live |
| SEODEV LIMITED | Private company limited by shares | Live |
| SEOGLOBALSOLUTIONS LIMITED | Private company limited by shares | Live |
| SEOGUANG CO., LIMITED | Private company limited by shares | Live |
| Seohee Trading Limited | Private company limited by shares | Live |
| SEOHEE INTERNATIONAL TRADING LIMITED | Private company limited by shares | Live |
| SEOHK LIMITED | Private company limited by shares | Dissolved |
| SEO-HO ASIA LIMITED | Private company limited by shares | Live |
| SEOHO TNF HK CO., LIMITED | Private company limited by shares | Live |
| SEOHYUN CO. LIMITED | Private company limited by shares | Live |
| SEOHYUN INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SEOHYUN INTERNATIONAL TRADING CO., LIMITED | Private company limited by shares | Live |
| SEOHYUNG D & C HONG KONG COMPANY LIMITED | Private company limited by shares | Dissolved |
| Seoi Co. Limited | | Live |
| HK KA SEOI LIMITED | | Live |
| Lung Seoi Hong Kong Limited | Private company limited by shares | Live |
| SEOIBA (HONGKONG) LIMITED | Private company limited by shares | Live |
| SEOIL INTERNATIONAL CO., LIMITED | Private company limited by shares | Dissolved |
| SEOJEON (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| GUANGZHOU SEOJIN TRADING CO., LIMITED | Private company limited by shares | Live |
| SEOJIN TRADING CO., LIMITED | Private company limited by shares | Live |
| Seojin Aier Electronic (HK) Co., Limited | Private company limited by shares | Dissolved |
| SEOJIN TECH (HK) LIMITED | Private company limited by shares | Dissolved |
| Guangzhou Seojin International Trading Co., Limited | | Live |
| Korea Seojin Group Limited | Private company limited by shares | Live |
| KOREA SEOJIN TEXTILES GROUP LIMITED | Private company limited by shares | Dissolved |
| SEOJIN PRECISION MOLD LIMITED | Private company limited by shares | Live |
| SHIN SEOJIN TECH COMPANY LIMITED | Private company limited by shares | Dissolved |
| KOREA SEOL COSMETICS CO., LIMITED | Private company limited by shares | Live |
| SEOLAB COMPANY LIMITED | Private company limited by shares | Live |
| SEOLBERRIES LIMITED | Private company limited by shares | Live |
| SEOMI JEWELRY TRADING CO., LIMITED | Private company limited by shares | Live |
| SEON COMPANY LIMITED | Private company limited by shares | Dissolved |
| SEON LIMITED | Private company limited by shares | Live |
| WING SEON ENTERPRISE HOLDING CO., LIMITED | Private company limited by shares | Live |
| HANG SEON SEONG HOU LIMITED | Private company limited by shares | Live |
| Hang Seon Textiles Limited | Private company limited by shares | Live |
| SEON TAK INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| Tin Lung Seon Company Limited | | Live |
| Nok Seon Pharmacy Limited | | Live |
| SEON SOLUTIONS LIMITED | Private company limited by shares | Dissolved |
| Seon Taai Limited | | Live |
| Wai Seon Technology Limited | Private company limited by shares | Live |
| SEON LEE TRADE LIMITED | Private company limited by shares | Live |
| SEON TRADING LIMITED | Private company limited by shares | Dissolved |
| Nok Seon Trading Limited | Private company limited by shares | Live |
| Wai Seon Trading Limited | Private company limited by shares | Live |
| HK SEON YUE TRADING LIMITED | | Live |
| Seon4 Limited | | Live |
| SEONCING TRADE CO., LIMITED | Private company limited by shares | Live |
| Seone Tax Limited | Private company limited by shares | Live |
| Seone Business Solutions Limited | Private company limited by shares | Live |
| SEONG WIN COMPANY LIMITED | Private company limited by shares | Dissolved |
| O SEONG LIMITED | Private company limited by shares | Live |
| SEONG COMPANY LIMITED | Private company limited by shares | Dissolved |
| O SEONG F&B LIMITED | Private company limited by shares | Live |
| SEONG AI LIMITED | Private company limited by shares | Live |
| SHENZHEN KIM SEONG CO., LIMITED | Private company limited by shares | Live |
| Kwang Seong EnC Limited | Private company limited by shares | Dissolved |
| SEONGEN TECHNOLOGY CO., LIMITED | | Live |
| BK SEONGHO TRADING LIMITED | Private company limited by shares | Live |
| SEONGWOO TRADING LIMITED | | Live |
| HK Seonic Technology Limited | | Live |
| Seonok Corporate Limited | Private company limited by shares | Live |
| ITALY SEONONS CO., LIMITED | Private company limited by shares | Live |
| SEONOVUM LIMITED | Private company limited by shares | Live |
| SEOONE LIMITED | Private company limited by shares | Live |
| SEOPAD LIMITED | Private company limited by shares | Live |
| Seoplan Limited | Private company limited by shares | Live |
| SEOptimer Limited | Private company limited by shares | Live |
| Seorecap Co. Limited | Private company limited by shares | Live |
| SEORIM ELECOM LIMITED | Private company limited by shares | Live |
| SEORIN TRADING LIMITED | Private company limited by shares | Live |
| SEOSEON LIMITED | Private company limited by shares | Live |
| Seoshin International Limited | Private company limited by shares | Live |
| SEOSIS COMPANY LIMITED | Private company limited by shares | Live |
| SEOSOMUN COMPANY LIMITED | Private company limited by shares | Dissolved |
| CHUNG SEOT NEW ENERGY GROUP LIMITED | | Live |
| SEOUL LIMITED | Private company limited by shares | Dissolved |
| SEOUL LED LIMITED | Private company limited by shares | Live |
| SEOUL LIMITED | Private company limited by shares | Live |
| 689 SEOUL LIMITED | Private company limited by shares | Live |
| A La Seoul Limited | Private company limited by shares | Live |
| We are Seoul Limited | Private company limited by shares | Live |
| Seoul Fun Limited | Private company limited by shares | Live |
| Hey Seoul Limited | Private company limited by shares | Live |
| SEOUL IN LIMITED | Private company limited by shares | Live |
| SEOUL (ASIA) FINANCE LIMITED | Private company limited by shares | Dissolved |
| Seoul Beauty Limited | Private company limited by shares | Live |
| Seoul Catering Limited | Private company limited by shares | Live |
| SEOUL YIZHEN INT' L SUXING CHAIN JIGOU LIMITED | Private company limited by shares | Live |
| SEOUL COLLECTION COMPANY LIMITED | Private company limited by shares | Dissolved |
| Here We Seoul Limited | Private company limited by shares | Live |