| PHOTON COMPANY LIMITED | Private company limited by shares | Dissolved |
| PHOTON Limited | Private company limited by shares | Live |
| Photon Lab Limited | | Live |
| Photon AI Limited | | Live |
| Photon X Limited | | Live |
| PHOTON ASIA LIMITED | Private company limited by shares | Live |
| Photon Business Limited | Private company limited by shares | Live |
| Photon Capital Limited | | Live |
| PHOTON LASERS SKIN CENTER LIMITED | Private company limited by shares | Live |
| Photon Entertainment Company Limited | Private company limited by shares | Live |
| Photon Fitness Limited | Private company limited by shares | Live |
| CHINA (HONGKONG) PHOTON ENERGY CO., LIMITED | Private company limited by shares | Live |
| Photon Innovation Company Limited | Private company limited by shares | Live |
| PHOTON INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| Scape Photon Limited | | Live |
| Photon Space Limited | Private company limited by shares | Live |
| PHOTON SYSTEM LIMITED | Private company limited by shares | Dissolved |
| Photon3D Limited | Private company limited by shares | Live |
| PHOTONE LIMITED | Private company limited by shares | Live |
| PhotoNergy Inc. Limited | Private company limited by shares | Live |
| PHOTONERGY INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| Photonergy Trading Limited | Private company limited by shares | Live |
| TI PHOTONICS COMPANY LIMITED | Private company limited by shares | Live |
| JV PHOTONICS LIMITED | Private company limited by shares | Live |
| AV PHOTONICS LIMITED | Private company limited by shares | Live |
| AP PHOTONICS LIMITED | Private company limited by shares | Live |
| HK SAN WO PHOTONICS LIMITED | Private company limited by shares | Dissolved |
| TOP PHOTONICS COMPANY LIMITED | Private company limited by shares | Live |
| HDC PHOTONICS COMPANY LIMITED | Private company limited by shares | Live |
| FM PHOTONICS LIMITED | Private company limited by shares | Live |
| IFU PHOTONICS LIMITED | Private company limited by shares | Live |
| AC PHOTONICS HK LIMITED | Private company limited by shares | Live |
| VY PHOTONICS LIMITED | Private company limited by shares | Live |
| MS Photonics (HK ) Limited | | Live |
| Advance Photonics Investments Limited | Private company limited by shares | Live |
| Photonics Appliance Solutions Limited | Private company limited by shares | Live |
| H.K AURORA PHOTONICS TECHNIQUE LIMITED | Private company limited by shares | Live |
| BONA FIDE PHOTONICS TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| BRAGG PHOTONICS HONG KONG LIMITED | Private company limited by shares | Dissolved |
| Carelink Photonics Limited | | Live |
| Cheetah Photonics Limited | | Live |
| PHOTONICS CHINA COMPANY LIMITED | Private company limited by shares | Live |
| IPG Photonics (China) Limited | Private company limited by shares | Live |
| PHOTONICS & CO., LIMITED | Private company limited by shares | Dissolved |
| WTS PHOTONICS CO., LIMITED | Private company limited by shares | Live |
| XF PHOTONICS CO., LIMITED | Private company limited by shares | Live |
| BOCOM PHOTONICS CO., LIMITED | Private company limited by shares | Dissolved |
| Jet Lasers Photonics Devices Co., LIMITED | Private company limited by shares | Dissolved |
| Dimension Photonics Co., Limited | Private company limited by shares | Live |
| Dynasense Photonics Co., Limited | Private company limited by shares | Live |
| GEZHI PHOTONICS CO., LIMITED | Private company limited by shares | Live |
| GIGAOPTO PHOTONICS CO., LIMITED | Private company limited by shares | Dissolved |
| Gong Ke Photonics Technology Co., Limited | Private company limited by shares | Live |
| LIGHTWIT PHOTONICS CO., LIMITED | Private company limited by shares | Dissolved |
| Master Photonics Co., Limited | Private company limited by shares | Live |
| Mega Photonics Co., Limited | Private company limited by shares | Live |
| MIVACIE PHOTONICS CO., LIMITED | Private company limited by shares | Live |
| ONWAY PHOTONICS CO., LIMITED | Private company limited by shares | Live |
| PRECISION PHOTONICS CO., LIMITED | | Live |
| RaArrow Photonics Co., Limited | Private company limited by shares | Live |
| SEAGNOL PHOTONICS CO., LIMITED | | Live |
| Photonics Solar Co., Limited | Private company limited by shares | Live |
| Miracle Photonics Tech Co., Limited | Private company limited by shares | Dissolved |
| U-Light Photonics Co., Limited | Private company limited by shares | Live |
| HUIZHOU YISU PHOTONICS CO., LIMITED | Private company limited by shares | Live |
| Crysmit Photonics Limited | Private company limited by shares | Live |
| Dowell photonics Co., Limited | Private company limited by shares | Live |
| Elite Photonics Holding Limited | | Live |
| ESSENTIAL PHOTONICS LIMITED | Private company limited by shares | Live |
| Exact Photonics Limited | Private company limited by shares | Live |
| FIBERSENSE PHOTONICS COMPANY LIMITED | Private company limited by shares | Dissolved |
| FILTECH PHOTONICS CO., LIMITED | Private company limited by shares | Live |
| FI-RA PHOTONICS HK LIMITED | Private company limited by shares | Live |
| Fortune Photonics Association Limited | Private company limited by shares | Live |
| FUTURE PHOTONICS CO., LIMITED | Private company limited by shares | Live |
| GIAI PHOTONICS CO., LIMITED | Private company limited by shares | Live |
| GLOBALTECH PHOTONICS LIMITED | Private company limited by shares | Live |
| GOLD PHOTONICS LIMITED | Private company limited by shares | Live |
| SHENZHEN GRANDLINK PHOTONICS CO., LIMITED | Private company limited by shares | Live |
| HATCH PHOTONICS LIMITED | Private company limited by shares | Live |
| INP Photonics (HK) Limited | Private company limited by shares | Live |
| ADAPS PHOTONICS (HK) CO., LIMITED | Private company limited by shares | Live |
| ADAPS PHOTONICS TECHNOLOGY (HK) CO., LIMITED | Private company limited by shares | Live |
| Avalon Photonics (HK) Limited | Private company limited by shares | Live |
| BONACOM PHOTONICS (H.K.) LIMITED | | Live |
| MI (HK) PHOTONICS CO., LIMITED | Private company limited by shares | Live |
| Harvest Photonics (HK) Limited | Private company limited by shares | Live |
| MICRO-TECH PHOTONICS (HK) LIMITED | Private company limited by shares | Dissolved |
| OPTEK PHOTONICS TECH (HK) CO., LIMITED | Private company limited by shares | Live |
| Ruiheng (HK) Photonics Technology Co., Limited | Private company limited by shares | Live |
| Silcam Photonics Technology (HK) Co., Limited | Private company limited by shares | Live |
| Shui Tat Photonics Technology (HK) Limited | Private company limited by shares | Live |
| SINTAI PHOTONICS TECHNOLOGY (H.K.) LIMITED | Private company limited by shares | Dissolved |
| Holy Photonics Limited | Private company limited by shares | Live |
| A SUN PHOTONICS (HONG KONG) CO., LIMITED | Private company limited by shares | Live |
| HTX PHOTONICS (HONG KONG) COMPANY LIMITED | Private company limited by shares | Live |
| CLASER PHOTONICS (HONGKONG) LIMITED | Private company limited by shares | Dissolved |
| HONGKONG RYMO PHOTONICS CO., LIMITED | Private company limited by shares | Live |
| HONGKONG TOPTICS PHOTONICS TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| Hongkong Rising Photonics Technology Limited | Private company limited by shares | Live |