Direct Marketing Audit Systems is located in scenic Northwestern Saint Louis County, Missouri, within minutes of downtown Saint Louis to the East, and historic Saint Charles to the West. DMAS was founded in 1991, and is here for the future, as a full service Direct Marketing Service Bureau. Our services include merge/purge, postal qualification, sanitation and enhancement, maintenance, list rental fulfillment, counts and reports, and more! We code and maintain most of our own applications, and are able to match customer needs. From process workstations to our web server, our systems are built, maintained, and hosted by our own IT Department, to give us greater control, security, and flexibility, to ensure we can meet your needs quickly. We have developed a merge/purge process that has not been beaten in head-to-head tests. With a customizable 3-pass process, we typically find 1 to 3 percent more duplicates in files thought to be duplicate free. Our extensive toolbox includes software to perform operations such as file matching, data appending, and file updating and householding. Our online services include many of our legacy services, including list rental fulfillment and merge/purge operations.