| SPECTRUM REPRODUCTION COMPANY LIMITED | Private company limited by shares | Dissolved |
| SMART SPECTRUM LIMITED | Private company limited by shares | Live |
| Spectrum Software Limited | Private company limited by shares | Live |
| Solar Spectrum Limited | | Live |
| SPECTRUM SOLUTIONS LIMITED | Private company limited by shares | Live |
| SPECTRUM SOLUTIONS LIMITED | | Live |
| Spectrum Sports Limited | Private company limited by shares | Live |
| SPECTRUMIX INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| SPECTRUMIX INDUSTRIES LIMITED | Private company limited by shares | Live |
| SPECTRUMS EXPERT LIMITED | Private company limited by shares | Live |