Chapman's combined systems organize your files with radius append, merge/purge processing, ZIP Code^® correction, ZIP Code^® appending, address standardization, address correction, postal sortation, and a variety of other advanced software programs.  Chapman is a non-exclusive Limited Service Provider Licensee of the United States Postal Service^® for both NCOA^Link® and ANK^Link™. Our computer facilities operate around the clock in a tightly-controlled, secure environment.