AlertOne Services, Inc.
   Medical alarms for the independent seniors, physically challenged persons, and homebound individuals.
   http://www.alert-1.com

American Medical Alarms, Inc
   Providing push button medical alarms for seniors living alone who wish to remain independent yet still be able to get help should they have an emergency.
   http://www.americanmedicalalarms.com/

Connect America Medical Alarms
   Offering wireless medical alert alarm systems and monitoring. Nationwide service.
   http://connectamerica.com/

Life Alarm
   Offers 24 hour protection, with monthly monitoring fees.
   http://life-alarm.com/

Medi Alert
   Offers a system for summoning assistance when needed.
   http://www.medi-alert.com/

New England Emergency Response Systems
   Provides products for emergency assistance if you're in need of help and unable to make a phone call.
   http://www.neers.com/

Nightingale Emergency Response Systems
   Emergency medical response systems, personal medical response systems and medical alarms.
   http://nightems.com/

Phone 4 Help
   Offers pendants and wrist watches that can automatically phone for help from anywhere in the home.
   http://www.phone4help.net

Protect 911
   Offers wireless, waterproof emergency response systems. Includes FAQ.
   http://www.protect911.com/

Vital Link
   Features a response monitor service for people in need.
   http://www.vital-linkinc.com/