Citizen builds technology for public safety in the United States. Its consumer app delivers real-time 911 alerts, live incident tracking and instant help from crisis responders to millions of users across more than 60 cities; the company reports that over 10 billion alerts have been sent to date. A second product, Citizen Enterprise, provides real-time situational intelligence to organisations including hospitals, venue operators and corporate security teams, supporting fast decision-making during incidents.
The engineering work spans artificial intelligence and machine learning, audio analysis, video moderation, and real-time notification delivery and location tracking. Systems are operated at scale: thousands of hours of audio and hundreds of videos are processed daily, and the alerting infrastructure carries emergency information to users within seconds. The stated ambition is to build a Global Safety Network extending this coverage further.
The company has raised over $100m, with backing from investors including Founders Fund, 8VC and Greycroft. Its stated mission is to make the world a safer place, and the work is framed around enabling users to make informed decisions that can save lives. Verticals served beyond the consumer app include healthcare, corporate security, live events and enterprise organisational security.






