HEATKEYS

For data quality management tools, mailing software, consumer and residential mailing lists, address verification, and NCOA services, visit MelissaData.com, a leading source of cost effective, direct marketing database solutions.

SmartyStreets is the leading mailing list software and address hygiene services provider. We provide on-demand USPS CASS Scrubbing and postal address verification, validation, certification, and standardization services that are CASS-Certified(TM) by...

A free and open source web-based GIS application portal for geocoding, geocode correction, address validation, and data capture

Buy USPS postage online from your PC, easily print postage stamps and shipping labels for all USPS mail classes.

Address verification from Experian QAS enhances USPS postal address data quality with front-end and back-end data verification software products.

Experian Official Site - Check your credit report and credit score, as well as obtain business credit reports and other marketing solutions.

Professional search tool to find and investigate people and businesses, research phone numbers and addresses

Get shipping rates, buy stamps, print postage, track a package, look up a ZIP Code? - Find the mailing products and services you need at USPS.com.

Address Logics, an industry first in genetic-coding based address correction and list hygiene services. Explicitly designed to correct USPS invalid addresses to CASS standards, eliminate return mail, and significantly increase your NCOA, phone appen...

Möglichkeiten der Adressbereinigung mit AddressDoctor, dem anerkannten Experten für Adressprüfung, Adresskorrektur und Dublettenabgleich.

Web services that validate, update, correct and enhance contact information in real-time within any application.