| ALTO COMPANY LIMITED | Private company limited by shares | Dissolved |
| ALTO HK LIMITED | Private company limited by shares | Live |
| ALTO LIMITED | Private company limited by shares | Live |
| Sky Alto Limited | Private company limited by shares | Live |
| ALTO INC LIMITED | Private company limited by shares | Live |
| Alto Limited | Private company limited by shares | Live |
| IN ALTO COMPANY LIMITED | Private company limited by shares | Live |
| ALTO PRO LIMITED | | Live |
| Alto Way Limited | | Live |
| ALTO ASIA LIMITED | Private company limited by shares | Live |
| ALVA ALTO & ASSOCIATES LIMITED | Private company limited by shares | Dissolved |
| ALTO TRADE ASSOCIATION (BEIJING) CO., LIMITED | Private company limited by shares | Live |
| Metropolitan Alto 88 (Causeway Bay) Limited | Private company limited by shares | Live |
| ALTO CHINA LIMITED | Private company limited by shares | Dissolved |
| ALTO S. A. (CHINA) LIMITED | Private company limited by shares | Live |
| EL ALTO CO., LIMITED | Private company limited by shares | Live |
| Ctrl Alto China Co., Limited | Private company limited by shares | Live |
| ALTO FINE CO., LIMITED | Private company limited by shares | Live Commenced dormancy on 30-May-2016 |
| ALTO REFRIGERATION MANUFACTURING CO., LIMITED | Private company limited by shares | Dissolved |
| Alto Coffee Limited | Private company limited by shares | Live |
| AL.TO CONSULTANT LIMITED | Private company limited by shares | Dissolved |
| ALTO Consulting Limited | Private company limited by shares | Live |
| ALTO SHIPPING CORPORATION (H. K.) LIMITED | Private company limited by shares | Dissolved |
| ALTO PLUS DESIGN SOLUTION GROUP LIMITED | Private company limited by shares | Live |
| Alto Development Limited | Private company limited by shares | Dissolved |
| ALTO DEVELOPMENT LIMITED | Private company limited by shares | Live |
| ALTO GANANCIA DEVELOPMENT LIMITED | Private company limited by shares | Live |
| Alto Enterprises Limited | Private company limited by shares | Dissolved |
| ALTO ENERGY-SAVING EQUIPMENT CO., LIMITED | Private company limited by shares | Live |
| ALTO FRAGILE TECHNOLOGY LIMITED | Private company limited by shares | Live |
| ALTO GANANCIA INVESTMENT LIMITED | Private company limited by shares | Live |
| ALTO GATE INVESTMENT LIMITED | Private company limited by shares | Live |
| EL GATO ALTO LIMITED | Private company limited by shares | Dissolved |
| ALTO GLOBAL LIMITED | Private company limited by shares | Live |
| PALO ALTO GLOBAL LIMITED | Private company limited by shares | Live |
| ALTO GREEN LIMITED | Private company limited by shares | Live |
| PALO ALTO CAPITAL GROUP LIMITED | Private company limited by shares | Dissolved |
| ALTO Design (HK) Limited | Private company limited by shares | Live |
| Alto Products (HK) Limited | Private company limited by shares | Live |
| ALTO TECHNOLOGIES (H.K.) LIMITED | Private company limited by shares | Dissolved |
| ALTO HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| Palo Alto Holdings Limited | Private company limited by shares | Live |
| ALTO PROFITTO ENTERPRISE HOLDINGS LIMITED | Private company limited by shares | Live |
| HONG KONG ALTO YA CAPITAL LIMITED | Private company limited by shares | Live |
| Alto Group Hong Kong Limited | Private company limited by shares | Live |
| MERCED ALTO GROUP (HONGKONG) LIMITED | Private company limited by shares | Dissolved |
| ALTO INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| ALTO INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| ALTO INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| ALTO IDEAL INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| PALO ALTO INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| Alto Lane Limited | | Live |
| ALTO CLOUD MEDIA LIMITED | Private company limited by shares | Live |
| ALTO NORDIC LIMITED | Private company limited by shares | Live |
| PALO ALTO COMPANY LIMITED | Private company limited by shares | Dissolved |
| Palo Alto Dragon Limited | Private company limited by shares | Dissolved |
| Red Dragon Palo Alto, Limited | Private company limited by shares | Live |
| Alto Plus Limited | Private company limited by shares | Live |
| ALTO PLUS ENTERTAINMENT LIMITED | Private company limited by shares | Live |
| Alto business power Limited | Private company limited by shares | Live |
| ALTO PRODUCTS LIMITED | Private company limited by shares | Live |
| ALTO PROFITTO SECRETARIAL LIMITED | Private company limited by shares | Live |
| ALTO RESIDENCES PROPERTY MANAGEMENT LIMITED | Private company limited by shares | Live |
| ALTO RESOURCES COMPANY LIMITED | Private company limited by shares | Live Commenced dormancy on 29-May-2012 |
| TRANSPORTE Y SERVICIOS ALTO RIO, C.A LIMITED | Private company limited by shares | Live |
| ALTO SALMIMO GROUP LIMITED | Private company limited by shares | Dissolved |
| ALTO EXECUTIVE SEARCH LIMITED | Private company limited by shares | Live |
| Alto Physiotherapy and Rehabilitation Services Limited | Private company limited by shares | Live |
| ALTO TECHNICAL MANUFACTURING CO., LIMITED | Private company limited by shares | Dissolved |
| ALTO Technology Limited | | Live |
| ALTO TRADING LIMITED | Private company limited by shares | Dissolved |
| Alto Ganancia Trading Company Limited | Private company limited by shares | Live |
| Alto Vera Asset Management (HK) Limited | | Live |
| ALTO WORKSHOP COMPANY LIMITED | Private company limited by shares | Dissolved |
| ALTOBRIGHT COMPANY LIMITED | Private company limited by shares | Dissolved |
| Altodock Digital Limited | Private company limited by shares | Live |
| ALTOGETHER LIMITED | Private company limited by shares | Dissolved |
| ALTOMA LIMITED | Private company limited by shares | Live |
| ALTOMARC LIMITED | Private company limited by shares | Live |
| ALTOMATIC LIMITED | Private company limited by shares | Live |
| ALTOMTECH LIMITED | Private company limited by shares | Live |
| ALTON LIMITED | Private company limited by shares | Live |
| ALTONA LIMITED | Private company limited by shares | Dissolved |
| ARAKAN ALTONA LIMITED | Private company limited by shares | Dissolved |
| ALTONA TRADING COMPANY LIMITED -THE- | Private company limited by shares | Dissolved |
| ALTONI Co. Limited | Private company limited by shares | Live |
| ALTONICS (HONG KONG) LIMITED | Private company limited by shares | Live |
| ALTOP CONSULTING LIMITED | Private company limited by shares | Live |
| ALTOP GREEN SOLUTIONS & PROJECTS LIMITED | Private company limited by shares | Live |
| ALTOP GROUP LIMITED | Private company limited by shares | Live |
| ALTOP ISHICHI SOLUTIONS & PROJECTS LIMITED | Private company limited by shares | Live |
| ALTOP TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| ALTOR LIMITED | Private company limited by shares | Dissolved |
| ALTOR ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| INVERSIONES ALTORETI LIMITED | Private company limited by shares | Live |
| Altos Co., Limited | Private company limited by shares | Live |
| Altosen Limited | Private company limited by shares | Live |
| ALTOSTRATUS AVIATION LIMITED | Private company limited by shares | Dissolved |