PulsePoint is a 501(c)(3) non-profit foundation based in the San Francisco Bay Area. Through the use of location-aware mobile devices PulsePoint is building applications that work with local public safety agencies to improve communications with citizens, empowering them to help reduce the millions of annual deaths from sudden cardiac arrest. Deployment of the PulsePoint app can significantly strengthen the “chain of survival” by improving bystander response to cardiac arrest victims and increasing the chance that lifesaving steps will be taken prior to the arrival of emergency medical services.