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List APIs

LeadGen APIs

Pull consumer, business, occupant, and property owner mailing lists 24/7

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LeadGen APIs

Your customers are looking for accurate, actionable mailing lists. Now, you can provide these lists to them with ease with your own private-label branding or via a portal for your customers to use to make their mailing list purchases. Melissa's LeadGen API provides wholesale pricing on mailing lists that you can then sell to your customers. It’s ideal for high-volume List Buyers and Brokers for internal or retail use. You can build, order, and download mailing lists at any time, 24/7/365, and then be invoiced at regular intervals.

Your customers will be happy for the convenience; you'll be happy with the ease of integration and affordable cost—it’s a win-win!

  • Integrate mailing list solutions into your own applications so your customers only see your brand and logo
  • Power a new revenue stream by providing customizable mailing lists 24/7
  • Increase ROI and add increased value to your business with Melissa's comprehensive lists at your side
LeadGen Cloud API - onsumer, business, occupant, and property owner mailing lists

How It Works

Consumer Mailing Lists

Power your mailing lists with over 200 million records for household, demographic, purchasing, and lifestyle information from Melissa's Consumer Mailing List to easily target your exact customer types. Our Consumer lists update quarterly, are USPS® CASS™ processed to ensure valid contact addresses which helps you save on postage costs and increase deliverability. Further, we run all lists through change-of-address systems to update residence and business records with the current address to help you eliminate undeliverable-as-addressed mail.

Power your mailing list with a database of over 200 million records for household, demographic, purchasing, and lifestyle information with Melissa's Consumer Lists.
Improve response rates from your customers, and save up to 60% on postage with Melissa's Occupant Lists.

Occupant Mailing Lists

Improve response rates, target by area, and save up to 60% on postage costs with Occupant Mailing Lists. Also known as “Occupant/Resident” or “Walk Sequence” lists, they cover the walk-sequence routes of postal carriers to saturate specific areas by ZIP Code, radius, county, city, and more. Instantly save 20-25% off the cost of Standard Mail® and as much as 50- 60% off the cost of First-Class Mail® through these lists Plus, get names for as many as 77% of residences for over 142

Business Mailing Lists

Access over 14 million businesses with multisourced databases of small to Fortune 500 companies throughout the U.S. Melissa's Business Mailing Lists are updated monthly to give you the freshest leads. Identify opportunities, expand your customer base, and reach key decision makers who want your products and services ASAP.

Melissa's Business Mailing Lists gives you access to over 14 million business with multi-channeled databases of small to large fortune 500 companies reaching throughout the U.S.
Melissa's Property Owner Mailing Lists allows you to reach a lucrative sector of landlords that are now looking to sell.

Property Mailing Lists

Property owners are not afraid to spend money on their investments. On the other hand, some of them may have bought a place and realized they weren't ready to be a landlord and are now looking to sell. Reach this lucrative sector of customers with the Property Mailing List. With more than 2,600 counties, 95% of the U.S. population, and 98% of all mortgage transactions, Melissa's got you covered. Updated monthly with over 100 million records, you'll identify new real estate trends, improve cost efficiency, and target on-site and absentee property owners to increase ROI in no time.


Melissa is the trusted source for fresh, accurate data. We are so confident in the quality and affordability of our mailing lists that we’ve introduced a Low Price and 100% Satisfaction Guarantee. All our mailing lists are USPS CASS and NCOALink processed to ensure correct, up-to-date addresses. We’ll replace undeliverable addresses with new data at zero cost to you. Plus, we’ll beat any competitor’s price.

What Our Customers Say


Data Sheets

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Our trials provide for 30 days of use so that you can test our tools in your environment.

When You Purchase Our Solutions:

  •   Free, unlimited technical support.

  •   120-Day ROI Guarantee!

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