Shelly Group

Shelly Group builds the connective tissue between ordinary electrical systems and the internet: smart-home and building-automation devices, plus the firmware, cloud services, APIs, web interfaces, and mobile apps that run them. The company has developed more than 100 smart devices - lighting, heating, appliances, curtains, access control, sensors, switches, energy management - and its platform is used in over 3 million households worldwide. That scale is the threat model. A portfolio of connected hardware sitting inside homes and businesses, spanning access control and energy systems, means the security surface is not a single app; it is embedded firmware, cloud endpoints, and an app that manages devices remotely.

The stack runs end to end: embedded hardware and firmware at the device layer, cloud services and APIs above it, and Shelly Smart Control on top - a mobile application handling remote device management, real-time power metering, notifications, and automation. Devices are compatible with major smart-home platforms, which adds third-party integration surfaces to an already distributed fleet. Engineering work is cross-functional across hardware, firmware, cloud, web, and mobile, with headquarters and design operations in Sofia, Bulgaria, and users worldwide.

The product philosophy is deliberately practical rather than complicated, with an emphasis on easy connectivity and dependable control for installers and end users. That approach shows up in the breadth of the portfolio - over 100 devices across lighting, heating and HVAC, access control, appliances, and energy management - each one another endpoint that has to be kept trustworthy across a long physical deployment lifetime.