| Jade Dragon Media Technology Limited | | Live |
| JADE VOICE MEDIA GROUP (CHINA) LIMITED | Private company limited by shares | Dissolved |
| JANEL MEDIA LIMITED | Private company limited by shares | Live |
| Jarlunder Media Limited | Private company limited by shares | Live |
| JASMINE MEDIA (CHINA) LIMITED | Private company limited by shares | Dissolved |
| Javelin Media Co., Limited | | Live |
| JAVELIN INTERACTIVE MEDIA PTE. LIMITED | Private company limited by shares | Dissolved |
| JAVITE MEDIA LIMITED | Private company limited by shares | Live |
| Now Jelli Media Limited | Private company limited by shares | Live |
| JETCO MEDIA LIMITED | Private company limited by shares | Dissolved |
| Jetsen Huashi Media Co., Limited | Private company limited by shares | Live |
| JETSO MEDIA COMPANY LIMITED | Private company limited by shares | Live |
| MEDIA JEWELLERY COMPANY LIMITED | Private company limited by shares | Live |
| HK JIAHE ADVERTISEMENT MEDIA LIMITED | Private company limited by shares | Live |
| Jiahuili Media Limited | | Live |
| JIAN MEDIA LIMITED | Private company limited by shares | Dissolved |
| JIANG HU MEDIA CORPORATION LIMITED | Private company limited by shares | Live |
| JIANGFAN MEDIA CO., LIMITED | Private company limited by shares | Live |
| JIANGHE MEDIA CO., LIMITED | Private company limited by shares | Live |
| JIANGTOON MEDIA INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Live |
| JIAYI MEDIA (HONGKONG) LIMITED | Private company limited by shares | Live |
| Jigo Digital Media Limited | Private company limited by shares | Live |
| Jimcast Media Limited | Private company limited by shares | Live |
| JINAN TULIANSHE ADVERTISING MEDIA LIMITED | Private company limited by shares | Dissolved |
| JINBO MEDIA INTERNATIONAL LIMITED | Private company limited by shares | Live |
| ALLIED JINGDE ENTERTAINMENT MEDIA LIMITED | Private company limited by shares | Dissolved |
| JINGYI MEDIA LIMITED | Private company limited by shares | Live |
| JINHONGYU FILM MEDIA LIMITED | Private company limited by shares | Live |
| JINYANYOU MEDIA INTERNATIONAL GROUP LIMITED | Private company limited by shares | Dissolved |
| HK JIUBAI MEDIA TECHNOLOGY LIMITED | | Live |
| Jobzz Media Limited | | Live |
| JOHNNY'S MEDIA LIMITED | Private company limited by shares | Live |
| Johnson Media Limited | Private company limited by shares | Live |
| JOICY MEDIA CO., LIMITED | Private company limited by shares | Live |
| Join Media Group Co., Limited | Private company limited by shares | Live |
| JOINNO MEDIA (HK) TECHNOLOGY INNOVATION LIMITED | Private company limited by shares | Live |
| Join-us Media Limited | Private company limited by shares | Live |
| Jonesky Media Licensing Limited | Private company limited by shares | Dissolved |
| NEW JOURNEY MEDIA LIMITED | Private company limited by shares | Live |
| New Journey Publishing Media Co., Limited | | Live |
| Joyelect Media Limited | | Live |
| JOYFUL MEDIA INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Live |
| Joyful Media Solutions Limited | Private company limited by shares | Live |
| HK JOYFULL MEDIA LIMITED | Private company limited by shares | Live |
| JOYUP MEDIA (HONGKONG) CO., LIMITED | Private company limited by shares | Live |
| JOYVERSAL MEDIA GROUP CO., LIMITED | Private company limited by shares | Live |
| JUHONG MEDIA LIMITED | Private company limited by shares | Live |
| Juicy Media Limited | Private company limited by shares | Live |
| JUICY MEDIA SOLUTION LIMITED | Private company limited by shares | Live |
| Jumao Media Holding Company Limited | Private company limited by shares | Live |
| Punch Junk Media Limited | Private company limited by shares | Live |
| Jupiter Media Limited | | Live |
| Just Media Limited | Private company limited by shares | Live |
| JUST ART MEDIA LIMITED | Private company limited by shares | Live |
| Juyou Advertising media Limited | | Live |
| Juzi Media HONGKONG Limited | Private company limited by shares | Live |
| KAINERO MEDIA GROUP LIMITED | Private company limited by shares | Live |
| Kaiyi Media (HK) Co., Limited | | Live |
| KAIYO Media Limited | Private company limited by shares | Live |
| Kaizen Media Limited | | Live |
| KAKIBUBU MEDIA LIMITED | Private company limited by shares | Live |
| Kane Media Limited | | Live |
| KARANZ MEDIA LIMITED | Private company limited by shares | Live |
| KATALYST MEDIA LIMITED | Private company limited by shares | Dissolved |
| KAVI MEDIA LIMITED | | Live |
| KAVOD MEDIA INTERNATIONAL LIMITED | Private company limited by shares | Live |
| KAWICH MEDIA LIMITED | Private company limited by shares | Live |
| KC's Media Limited | Private company limited by shares | Live |
| Kennedy Media Limited | Private company limited by shares | Live |
| Keobukseon Media Consulting Limited | Private company limited by shares | Live |
| Kerry Media (China) Group Limited | Private company limited by shares | Dissolved |
| KEXIN MEDIA LIMITED | Private company limited by shares | Live |
| Key2Leads Media Limited | Private company limited by shares | Live |
| KEYLONG MEDIA LIMITED | Private company limited by shares | Dissolved |
| KEYTEX MEDIA LIMITED | Private company limited by shares | Dissolved |
| KEZBAN MEDIA AND PUBLISHING (HK) LIMITED | Private company limited by shares | Live |
| KICKSTART MEDIA LIMITED | Private company limited by shares | Live |
| HK KIDS Media Limited | Private company limited by shares | Live |
| Kika Media Limited | | Live |
| Kikk Media Limited | Private company limited by shares | Live |
| KINDNESS LAI MEDIA CO., LIMITED | Private company limited by shares | Live |
| Kinetic Vision Media Limited | Private company limited by shares | Live |
| MEDIA KING INC LIMITED | Private company limited by shares | Live |
| KingBox Media Limited | Private company limited by shares | Dissolved |
| KINGMAN MEDIA COMPANY LIMITED | Private company limited by shares | Live |
| Kingpyn Media Limited | | Live |
| RAY KING'S MOVE AND TV CULTURE MEDIA CO. LIMITED | Private company limited by shares | Live |
| Kingyou Media & Software Limited | Private company limited by shares | Live |
| KINK MEDIA LIMITED | Private company limited by shares | Live |
| KINPAN ESTATE MEDIA LIMITED | Private company limited by shares | Live |
| MEDIA KITCHEN LIMITED | Private company limited by shares | Dissolved |
| KIYOMANGA MEDIA LIMITED | | Live |
| KLAPTON MEDIA LIMITED | Private company limited by shares | Live |
| Klick One Media Limited | Private company limited by shares | Live Commenced dormancy on 17-Sep-2018 |
| Media Knight Company Limited | Private company limited by shares | Live |
| Knova Media Limited | | Live |
| KNOWLEDGE MEDIA LIMITED | Private company limited by shares | Dissolved |
| Koch Media Limited | Private company limited by shares | Live |
| KOLive Media Limited | | Live |
| Kompanion Media Limited | Private company limited by shares | Live |