Emergency Alert
| Aerotel - specializes in signal processing technology and is active in two distinct technology fields: telecommunication and telemedicine technology. | |
| Fire Page of New Jersey - paging company that notifies subscribers of Fire, Police, EMS, Traffic, Weather and Breaking news. | |
| Life Alert Services - provides 24 hour personal emergency response protection at the push of a button on either a wearable wrist watch or pendant transmitter. | |
| LifeGard - personal emergency response system. | |
| Lifeline Systems, Inc. - provider of personal response services to the at home elderly, enhancing their independence and quality of life. | |
| Medical Emergency Assistance - providing seriously ill person with a medical alert bracelet along with medical history to aid rescuers. | |
| Medical Priority Consultants - offers emergency medical dispatch products and services. | |
| Sentry 2000 - versatile radio signaling emergency call box. | |
| SOS Industries - personal emergency response system (PERS) monitoring and equipment. Also electronic house arrest equipment. | |
| Voice Box, Inc. - specializes in the manufacture two-way audio products. | |