| SPECTO LIMITED | Private company limited by shares | Live |
| SMITHSON SPECTOR ENERGY RESOURCES LIMITED | Private company limited by shares | Live |
| Spectr Trade Group Limited | Private company limited by shares | Live |
| SPECTRA LIMITED | Private company limited by shares | Dissolved |
| SPECTRA LIMITED | Private company limited by shares | Dissolved |
| Ag Spectra Limited | Private company limited by shares | Dissolved |
| NML SPECTRA LIMITED | Private company limited by shares | Live |
| SPECTRA LIMITED | Private company limited by shares | Dissolved |
| SPECTRA LIMITED | Private company limited by shares | Live |
| Spectra Asia Company Limited | Private company limited by shares | Dissolved |
| Spectra Capital Limited | Private company limited by shares | Live |
| Spectra Capital II Limited | Private company limited by shares | Live |
| ELITE SPECTRA LIMITED | Private company limited by shares | Live |
| NEW SPECTRA BEAUTY & FIGURE CENTRE COMPANY LIMITED | Private company limited by shares | Dissolved |
| SPECTRA FINANCE & COMPANY LIMITED | Private company limited by shares | Dissolved |
| SPECTRA FINANCIAL SOLUTIONS LIMITED | Private company limited by shares | Live |
| SPECTRA INVESTMENT LIMITED | Private company limited by shares | Live |
| GRAND SPECTRA INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| SPECTRA JEWELRY LIMITED | Private company limited by shares | Dissolved |
| SPECTRA PARTNERSHIP LIMITED | Private company limited by shares | Live |
| SPECTRA PRODUCTS LIMITED | Private company limited by shares | Live |
| SPECTRA SALES LIMITED | Private company limited by shares | Dissolved |
| SPECTRA STAR ASIA, LIMITED | Private company limited by shares | Dissolved |
| SPECTRA SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| SPT SPECTRA TECH COMPANY LIMITED | Private company limited by shares | Live |
| SPECTRA TOYS LIMITED | Private company limited by shares | Dissolved |
| SPECTRA TUNE LIMITED | Private company limited by shares | Live |
| SPECTRADE LIMITED | Private company limited by shares | Dissolved |
| SPECTRAGEM TRADING COMPANY LIMITED | Private company limited by shares | Live |
| HONG KONG SPECTRAL ENERGIES LIMITED | Private company limited by shares | Live |
| SPECTRAL RESEARCH SERVICES LIMITED | Private company limited by shares | Dissolved |
| Spectral IT Solutions Limited | Private company limited by shares | Live |
| SPECTRALINE LIMITED | Private company limited by shares | Live |
| Spectraline Technologies Company Limited | Private company limited by shares | Live |
| Spectralocus Industry Limited | | Live |
| SPECTRAONE LIMITED | Private company limited by shares | Live |
| SPECTRA-PHYSICS ASIA LIMITED | Private company limited by shares | Live |
| SPECTRA-PHYSICS HONG KONG LIMITED | Private company limited by shares | Dissolved |
| SPECTRART LIMITED | Private company limited by shares | Live |
| SPECTRASIA LIMITED | Private company limited by shares | Dissolved |
| SpectraSynq Co Limited | | Live |
| SPECTRAVIDEO INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SPECTRE LIMITED | Private company limited by shares | Live |
| SPECTREX INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SPECTRO COMPANY LIMITED | Private company limited by shares | Dissolved |
| SPECTRO SYSTEM ASIA LIMITED | Private company limited by shares | Live |
| SPECTROL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SPECTRON LIMITED | Private company limited by shares | Dissolved |
| Spectron Integrated Co., Limited | | Live |
| SPECTRON ENTERPRISES LIMITED | Private company limited by shares | Live |
| SPECTRON SCIENTIFIC (HK) LIMITED | Private company limited by shares | Dissolved |
| Marex Spectron Limited | Private company limited by shares | Live Commenced dormancy on 16-Jun-2011 |
| SPECTRON TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Spectron Telecom Limited | Private company limited by shares | Live |
| Spectronic (Hong Kong) Limited | Private company limited by shares | Live |
| SPECTRONIC DIGITAL MANUFACTURING LIMITED | Private company limited by shares | Dissolved |
| SPECTRONIC MANUFACTURERS AND RESEARCH LIMITED | Private company limited by shares | Dissolved |
| M. D. SPECTRONICS LIMITED | Private company limited by shares | Dissolved |
| SPECTRONIX LIMITED | Private company limited by shares | Dissolved |
| SPECTROVISION LIMITED | Private company limited by shares | Live |
| SPECTRUM COMPANY LIMITED | Private company limited by shares | Dissolved |
| SPECTRUM LIMITED | Private company limited by shares | Live |
| AP SPECTRUM LIMITED | Private company limited by shares | Live |
| RF Spectrum Limited | Private company limited by shares | Dissolved |
| B&K SPECTRUM LIMITED | Private company limited by shares | Dissolved |
| SPECTRUM TEX LIMITED | Private company limited by shares | Live |
| Spectrum 28 Limited | Private company limited by shares | Live |
| Spectrum Ink Company Limited | Private company limited by shares | Live |
| Spectrum SI Limited | Private company limited by shares | Live |
| Spectrum Hui Limited | Private company limited by shares | Live |
| Spectrum LED Limited | Private company limited by shares | Live |
| SPECTRUM XI AN LIMITED | Private company limited by shares | Live |
| Spectrum Fun Limited | Private company limited by shares | Live |
| BKP HK Spectrum Limited | Private company limited by shares | Live |
| Spectrum One Company Limited | | Live |
| SPECTRUM (ASIA) LIMITED | Private company limited by shares | Live |
| Spectrum Asia Limited | Private company limited by shares | Live |
| Spectrum Solutions Asia Limited | | Live |
| Spectrum Wine Auctions, Limited | Private company limited by shares | Live |
| Spectrum Capital Limited | Private company limited by shares | Live |
| SPECTRUM COMBINATION LIMITED | Private company limited by shares | Live |
| SPECTRUM COMMODITY LIMITED | Private company limited by shares | Live |
| SPECTRUM CONSORTIUM LIMITED | Private company limited by shares | Live |
| Spectrum Consultancy Limited | Private company limited by shares | Live |
| Spectrum Display Limited | | Live |
| DRAGON SPECTRUM COMPANY LIMITED | Private company limited by shares | Dissolved |
| SPECTRUM ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| Spectrum Eyewear Limited | Private company limited by shares | Live |
| SPECTRUM FINANCE LIMITED | | Live |
| HONG KONG CANAI SPECTRUM COMPANY LIMITED | Private company limited by shares | Live |
| Infrared Spectrum Company Limited | Private company limited by shares | Live |
| Spectrum Innovations Limited | | Live |
| SPECTRUM INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SPECTRUM INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| Spectrum Metaltrade Limited | Private company limited by shares | Live Commenced dormancy on 31-Dec-2013 |
| DIGITAL SPECTRUM PACIFIC LIMITED | Private company limited by shares | Dissolved |
| SPECTRUM PEAK LIMITED | Private company limited by shares | Dissolved |
| Spectrum Pharma Limited | Private company limited by shares | Live |
| POLY SPECTRUM LIMITED | Private company limited by shares | Dissolved |
| Spectrum Power Company Limited | Private company limited by shares | Live |