| Gigatech Co. Limited | Private company limited by shares | Live |
| GIGA-TECH COMMUNICATION CO., LIMITED | Private company limited by shares | Live |
| GIGA-TECH ROCK DRILLING LIMITED | Private company limited by shares | Live |
| GIGATECH (HK) CO., LIMITED | Private company limited by shares | Live |
| GIGATECH INTERNATIONAL LIMITED | Private company limited by shares | Live |
| GIGATEK LIMITED | Private company limited by shares | Live |
| Gigatel HK Limited | Private company limited by shares | Dissolved |
| GIGATRON LIMITED | Private company limited by shares | Live |
| GIGATRON (HK) LIMITED | Private company limited by shares | Live |
| GIGAVISIONS NETWORK LIMITED | Private company limited by shares | Live |
| GIGAWATT INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| Gigawave Technology Limited | | Live |
| GigaWealth Limited | Private company limited by shares | Live |
| GIGAWELL INTERNATIONAL (HK) TRADING CO., LIMITED | Private company limited by shares | Dissolved |
| Giga-World Limited | | Live |
| Gigazoom Energy Limited | | Live |
| GIG-BAND Limited | Private company limited by shares | Live |
| GigCapitol Consulting Limited | Private company limited by shares | Live |
| GigCapitol Digital Solutions Limited | Private company limited by shares | Live |
| GIGG LIMITED | Private company limited by shares | Live Commenced dormancy on 12-Jan-1998 |
| GIGGLE 3 LIMITED | Private company limited by shares | Live |
| Giggle HK Limited | Private company limited by shares | Live |
| Giggle English Limited | Private company limited by shares | Live |
| Giggle International Limited | | Live |
| Giggle Master Limited | | Live |
| GIGGLE MUSIC LIMITED | Private company limited by shares | Live |
| Giggle Technology Co., Limited | | Live |
| Giggle Foreign Trade Co., Limited | Private company limited by shares | Live |
| Giggle Work Limited | Private company limited by shares | Live |
| Giggle-Kid-O Limited | Private company limited by shares | Live |
| GIGGLES LIMITED | Private company limited by shares | Live |
| GIGGLES INTERNATIONAL CATERING GROUP COMPANY LIMITED | Private company limited by shares | Live |
| GIGGLES INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| GIGGLES INTERNATIONAL LIMITED | Private company limited by shares | Live |
| Giggs Company Limited | Private company limited by shares | Live |
| GIGGSHILL COMPANY LIMITED | Private company limited by shares | Live |
| GIGI LIMITED | Private company limited by shares | Dissolved |
| GIGI LIMITED | | Live |
| Gi-Gi Amusement Limited | Private company limited by shares | Live |
| GIGI ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| GIGI FOOTWEAR COMPANY LIMITED | Private company limited by shares | Live |
| France Olivia Gigi Cosmetics Co., Limited | | Live |
| GIGI PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| GIGIAF LIMITED | Private company limited by shares | Live |
| GIGIGO LIMITED | Private company limited by shares | Live |
| GIGIL Limited | Private company limited by shares | Live |
| GIGIONA COMPANY LIMITED | Private company limited by shares | Dissolved |
| GIGI'S PIZZA LIMITED | Private company limited by shares | Dissolved |
| GIGLI TRADE CO., LIMITED | Private company limited by shares | Live |
| Giglio TV HK Limited | Private company limited by shares | Live |
| GIGNAC PRO LIMITED | Private company limited by shares | Live |
| GIGO LIMITED | Private company limited by shares | Dissolved |
| GI-GO TOYS FACTORY LIMITED | Private company limited by shares | Live |
| GIGO INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| GIGO TECHNOLOGY LIMITED | Private company limited by shares | Live |
| GIGO TRADING LIMITED | Private company limited by shares | Dissolved |
| GIGOLI COMPANY LIMITED | Private company limited by shares | Dissolved |
| GIGON COMPANY LIMITED | Private company limited by shares | Dissolved |
| GIGOO INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| GIGOO INDUSTRIAL (CHANG SHA) CO., LIMITED | Private company limited by shares | Live |
| GIGOT INSURANCE UNDERWRITERS LIMITED | Private company limited by shares | Dissolved |
| GIGOT TECHNOLOGY LIMITED | Private company limited by shares | Live |
| GigsGigs Cloud Limited | Private company limited by shares | Live |
| GIGU TANG COMPANY LIMITED | Private company limited by shares | Live |
| GIGWORKS LIMITED | Private company limited by shares | Live |