Unlock the True Potential of GIS

Increase productivity and accuracy in spatial analysis and mapping with industry-leading location intelligence, address verification and enrichment tools.

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How Melissa Helps GIS Professionals

For more than 30 years, Melissa has provided contact data verification and cleansing solutions, including address data quality and location intelligence resolution, to more than 10,000 customers worldwide. We use the most up-to-date, multisource datasets to bring you accurate and reliable information you can use across the enterprise. Work with us to improve:

Solutions for GIS Professionals

Make it easy to map, analyze, and assess real-world problems with tools that simplify and speed up the process.

Global Address Verification

Real-time, point-of-entry address correction and validation for 240+ countries.

Rooftop Level Geocoding

Convert addresses into lat/long coordinates, fix spelling errors, and complete addresses that have missing or invalid components to provide more precise results.

IP Address Locator

Determine the physical location of your web visitor’s IP address, then add associated comprehensive geolocation data, including Whois data.

Property & Mortgage Data

Get fresh, accurate real estate & property data on more than 140 million U.S. properties, including parcel and building info, calculated value, deed history and more.

Global Address Database (GAD)

GAD provides complete location information on all addresses in an area including address type, latitude and longitude coordinate, county FIPS and Census Key.

Hazard Risk Data

Get risk scores for every U.S. address or lat/long coordinate. Melissa’s web service provides scores for hazards like flood, wildfire, lightning, straight-line winds, hurricanes, tornadoes, earthquakes, and more.

Direction’s Magazine Geospatial Webinar

Learn how to use address identifier technology to drive efficiencies in mapping, analytics, risk management and logistics.