Companies in the Automatic External Defibrillator Inf-Service (Manufacturing) industry are involved in the manufacturing and servicing of automatic external defibrillators (AEDs). AEDs are portable electronic devices that are used to diagnose and treat sudden cardiac arrest (SCA) by delivering an electric shock to the heart. The industry involves the design, development, and production of AEDs, as well as the provision of maintenance and repair services for these devices. Companies in this industry work closely with healthcare providers, emergency medical services, and other organizations to ensure that AEDs are readily available in public places and other locations where SCA is likely to occur.