For practices in locations with surrounding businesses where employees may be an important part of the patient base, this is an invaluable file. While it should not be used as a mailing list, it provides vital information about the businesses, distance from the practice site, the number of employees, and the volume of business that is done. Keep in mind that this is not the same thing as a Major Employer List. Rather, it is a comprehensive list (at least as comprehensive as possible) of local employers from the barber to the small manufacturing center down the street. PLEASE note that no medical or dental insurance is associated with this information. Still, if makes for a useful tool for practices to contact employers to determine what insurances they offer their employees.