FSD Active is a start-up company that specializes in designing and manufacturing the Calm Floor product, which is used to manage floor vibrations. CALMFLOOR is an active vibration control technology that can reduce resonant vibrations up to 10 times more than passive approaches such as tuned mass dampers and constrained layer damping. It is compact, lightweight, and can fit around existing services in voids and tight spaces. The system has great sustainable credentials, as it allows for slender and lightweight structural designs with reduced construction materials and embodied carbon. It is also cost-effective compared to structural modifications typically needed in retrofit projects and can be an enabler of more sustainable construction materials like Cross-Laminated Timber.