panic button security response system

I am in need of a Panic Button Security Response System to help protect me and the things I hold dear. The system should be compatible with any panic button device or brand, as I am open to suggestions. When the panic button is pressed, I need the system to send a distress signal to a private security firm. Additionally, I would like this system to be outfitted with additional features such as GPS tracking, system health checks, and mobile alerts, as I believe these features will be beneficial.