| Heatherwick Studio HK Limited | Private company limited by shares | Live |
| HeBe Dancing Studio Limited | Private company limited by shares | Dissolved |
| Hebeface's Studio Limited | | Live |
| Leung Tsz Hei's Studio Limited | Private company limited by shares | Live |
| HERE STUDIO LIMITED | Private company limited by shares | Live |
| Nob Hill Studio Limited | Private company limited by shares | Live |
| Studio Hill Limited | Private company limited by shares | Live |
| Hint Studio Limited | | Live |
| Hirosart Studio Limited | | Live |
| Studio HiSyou Limited | Private company limited by shares | Live |
| Hobirama Studio Limited | Private company limited by shares | Live |
| HOGO STUDIO LIMITED | Private company limited by shares | Live |
| HOHOHOAH Creative Studio Limited | | Live |
| HOKY STUDIO LIMITED | Private company limited by shares | Live |
| Homebase Studio Limited | Private company limited by shares | Live |
| Homestation Studio Limited | Private company limited by shares | Live |
| HOMEWORK STUDIO LIMITED | Private company limited by shares | Live |
| Hong Kong Ink Alliance Design Studio Limited | Private company limited by shares | Live |
| AVOCADO STUDIO (HONG KONG) COMPANY LIMITED | | Live |
| CHINA STUDIO (HONG KONG) LIMITED | Private company limited by shares | Live |
| KIZ Design Studio (Hong Kong) Limited | Private company limited by shares | Live |
| C. k. C Design Studio (Hong Kong) Limited | Private company limited by shares | Live |
| Dream Studio (Hong Kong) Limited | Private company limited by shares | Live |
| Thoughts of Exploration Studio Hong Kong Limited | | Live |
| Hong Kong Illuminate Studio Limited | | Live |
| General Dream Studio (Hong Kong) Limited | | Live |
| SCRIPT PROMOTING STUDIO (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| Juicy Lemon Studio (Hong Kong) Limited | | Live |
| L'ZINGER STUDIO HONG KONG, LIMITED | Private company limited by shares | Dissolved |
| Smooth Studio Hong Kong Limited | Private company limited by shares | Live |
| Snohetta Studio Hong Kong Limited | Private company limited by shares | Live |
| Hong Kong Yoga Studio Limited | Private company limited by shares | Live |
| HONGKA STUDIO LIMITED | Private company limited by shares | Dissolved |
| HONGKA STUDIO LIMITED | Private company limited by shares | Live |
| STUDIO HONTO LIMITED | Private company limited by shares | Live |
| HOOM STUDIO LIMITED | Private company limited by shares | Live |
| Studio Horti Limited | Private company limited by shares | Live |
| HOTDOT STUDIO LIMITED | Private company limited by shares | Live |
| Hourglass Studio Limited | Private company limited by shares | Live |
| HOWLER STUDIO LIMITED | Private company limited by shares | Live |
| Research Studio of Huang Tzu Limited | Private company limited by shares | Live |
| HummingBird Studio Limited | | Live |
| Studio Humour Limited | Private company limited by shares | Live |
| Studio i61:3 Limited | | Live |
| Ibam Studio Limited | Private company limited by shares | Live |
| i-Creative Studio Limited | Private company limited by shares | Live |
| Idea Studio Limited | Private company limited by shares | Live |
| NEW IDEA STUDIO LIMITED | Private company limited by shares | Live |
| NEW CREATIVE IDEA STUDIO LIMITED | Private company limited by shares | Live |
| I-DESIGN STUDIO LIMITED | Private company limited by shares | Dissolved |
| Ifree Studio Limited | Private company limited by shares | Live |
| IFUN STUDIO LIMITED | Private company limited by shares | Dissolved |
| Ihsan Studio Limited | | Live |
| I-KILN STUDIO LIMITED | Company limited by guarantee | Dissolved |
| iLike Studio Limited | Private company limited by shares | Live |
| illusion Studio Limited | Private company limited by shares | Dissolved |
| Imagi Studio Limited | Private company limited by shares | Dissolved |
| Imagine Studio Limited | Private company limited by shares | Live |
| One Imagine Studio Limited | Private company limited by shares | Live |
| Versatile Imaging Studio Limited | | Live |
| INCHINA STUDIO LIMITED | Private company limited by shares | Live |
| STUDIO INCLINE LIMITED | Private company limited by shares | Live |
| IND2 STUDIO LIMITED | Private company limited by shares | Dissolved |
| INFIART STUDIO LIMITED | Private company limited by shares | Live |
| infiniti studio Limited | Private company limited by shares | Live |
| IDEA INFINITY STUDIO LIMITED | Private company limited by shares | Dissolved |
| Sports Infinity Studio Limited | | Live |
| Infinni Studio Limited | Private company limited by shares | Live |
| Influencer Studio Limited | | Live |
| Ingenuity Studio Limited | | Live |
| InMagin Studio Limited | Private company limited by shares | Live |
| INNOPLUS STUDIO LIMITED | | Live |
| INSOS STUDIO LIMITED | Private company limited by shares | Live |
| INSPIRATION STUDIO LIMITED | Private company limited by shares | Dissolved |
| INSPIRE STUDIO LIMITED | Private company limited by shares | Live |
| INSPIRIT STUDIO LIMITED | Private company limited by shares | Live |
| Inteaink Studio Limited | | Live |
| TAG Interiors Design Studio Limited | Private company limited by shares | Live |
| Intermedia Studio Limited | Private company limited by shares | Live |
| Investment Studio Limited -The- | Private company limited by shares | Live |
| 101 Studio Investment Limited | Private company limited by shares | Live |
| GOLD STUDIO INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| Ironwood Studio Limited | | Live |
| Iscream Studio Limited | Private company limited by shares | Live |
| ISIS STUDIO LIMITED | Private company limited by shares | Live |
| STUDIO ITALIANO LIMITED | Private company limited by shares | Live |
| Man Jack Tom Studio Limited | Private company limited by shares | Live |
| Jadey Studio Limited | Private company limited by shares | Live |
| Jamble Studio Limited | Private company limited by shares | Live |
| Jamgather Studio Limited | | Live |
| Jason Studio Limited | | Live |
| J.C.A. Studio Limited | Private company limited by shares | Live |
| JDESIGN STUDIO LIMITED | Private company limited by shares | Live |
| STUDIO JEWELS LIMITED | Private company limited by shares | Dissolved |
| J-FRAME DESIGN STUDIO LIMITED | Private company limited by shares | Live |
| JIANG REN STUDIO LIMITED | Private company limited by shares | Live |
| A Jiara Studio Limited | Private company limited by shares | Live |
| JIMMY CHAN STUDIO LIMITED | Private company limited by shares | Dissolved |
| JING'S STUDIO LIMITED | Private company limited by shares | Live |
| JIREH STUDIO LIMITED | Private company limited by shares | Live |