HEATKEYS

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...

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

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

At Regular-Expressions.info you will find a wide range of in-depth information about a powerful search pattern language called regular expressions.

IWD Store

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.

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

Technical resources for developers of integrations and connectors for Avalara's AvaTax Sales Tax Automation Suite.

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