HistoryNational Credit Control Agency is a family owned and operated collection agency that has proudly served the Southern California business community for over 50 years.SpecialtiesNational Credit Control Agency is a full-service collection agency. We specialize in commercial, retail, advertising and medical collections. National Credit Control Agency has been in business in Southern California for more than 50 years. We have a rather large and diverse list of clients covering all aspects of commercial and personal debt collections. We are large enough to handle all of your collection needs yet small enough to provide personalized attention to all of our clients and their accounts.