What is a Custom List Building Service?

  • A custom list building service is a strategic tool for marketers and sales teams to build a marketing database using your target audience.
  • Fill your sales pipeline and close more deals: Let us build your customized consumer database list today based on thousands of selection criteria.
  • B2C consumer lists start with your dream selects and postal addresses. Use our data to build a custom email list or custom mailing list.
  • You can add additional premium contact data to your customized lists like demographics and wealth information.
  • Improve your conversion rates with a 360-view of your top prospects.
  • Read our whitepaper to learn how List Builder can help you build the perfect list.

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List Building Services Save Time and Make Money

Accurate Append’s custom list building solutions are backed by decades of technology leadership and the best partnerships in the sector. We work with regulated industries, voter files, fundraising data and more — all in a secure environment with round-the-clock processing. We understand that every growing organization has different challenges that’s why all of our processes are customizable to your needs. Give us a call and get started today.

Call us at 888-979-9813 for a free consultation

Create Your Custom List from Our Direct Marketing Database

Let’s say you want to reach all of the plumbers in the U.S with your products. Or writers, surveyors, or jewelers. Maybe you need the best cell phones to reach and recruit machinists, teachers, or medical staff. Or you’d like to build a custom mailing list to reach with direct mail. Our list-building service can help you reach your perfect audience across thousands of criteria, including hundreds of professions.

There’s never been a better time for organizations looking to reach niche audiences with your products and services. If you’re looking to reach U.S. consumers in specific professions or by job titles, let us know.

Read our whitepaper to learn more about how List Builder can help you build the perfect list.

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Build Upon Your Data or Create a New Custom List

Many of our customers start out with a list, trusting Accurate Append to provide the best quality phone and email contact information from our rigorously sourced databases. Now, we’re able to offer the same level of service to direct marketers and other businesses who have list criteria in mind and are just starting their contact efforts.

With our list-building service, you share a desired universe — with criteria like zip codes, estimated wealth, professions, homeownership status, and more — and our data specialists will help you build your dream list, complete with premium email and verified phone numbers.

Building a marketing database has never been this easy or this effective. Build consumer database lists in just a few clicks. Contact us today to get started.

Most Requested Data Points

Turning 65 Solar-ready Wealth Score Green Score & much more!

U.S. direct marketing data, with thousands of customizations to create your dream list today.

Our B2C custom list building service helps marketers and sales organizations develop custom mail, call, and e-mail lists based on criteria like income level, language, homeownership status, age, business ownership, and hundreds of other interest and occupational criteria.

With our list building service, you can target your prospects by state and down to zip code. Reach executives, students or the self-employed with ease.

Whether you’re working with us daily or it’s been a while, if you have a project in mind where custom list building could fill in gaps in your data, just reply or give us a call—we’d love to help.

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Frequently Asked Questions About Custom List Building

Our support team uses our proprietary database of more than 250 million U.S. consumers to create a customized list of ideal customer profiles for your marketing and sales team.  Choose from thousands of attributes and our team will build customized lists with the contact data you need to close more deals.

Contact us today to get a custom quote. Our solutions are ideal for growing SMEs looking for the highest quality contact data. We start with basic mailing list building services, and can add email list building services and even mobile phone numbers with the best time to call to reach your prospects. We offer one-time and subscription services, with batch, API, and self-service delivery.

Yes. Accurate Append provides list building services in compliance with U.S. laws and has an “A+” rating with the Better Business Bureau. We are SOC 2 Type II certified, and undergo regular independent audits.

Use our custom list building services if you want to fill your sales pipeline faster! We can provide additional prospects for your phone, email, and direct marketing campaigns with the best quality data and winning technical and customer service.

Proven List Building Solutions and Responsive Service, Because You Need Results

Landline and Mobile
Phone Append

New Authoritative Data Source phones score and enhance your list with prioritized, verified numbers. We help you get more out of your calling campaigns.


With a database of 900 million emails and a triple-scrub process, we can refresh and enhance your lists for remarkable results.


Real-time validation means better inboxing and fewer bounces for your email campaigns.


We provide several core demographic append products that will help you better understand your audience and target your campaigns.


Prioritize real leads and respond instantly with our real-time lead validation services. Validate, verify, and enhance your leads.


Update moves and mailing address with as little as a name, street address, city, and state. Add phone, email, and demographic information for your top audiences.


Join hundreds of campaigns that use Accurate Append to validate, verify, and enhance voter and donor records right inside their nations. Get better results right away.

Developer API &
Real-Time Sync

Integrating customer data integrity into your business processes doesn’t have to cost hundreds of thousands of dollars. Benefit from our leading data partnerships and technology leadership today.

Expert Data Logistics for Your Success

We help growing businesses make the most of their time and resources by integrating the best data from the best sources using the best in today’s technology. Our premium processing and matching algorithms provide speed, accuracy, and security to every job. It’s quality, quantified.

Your One-Stop Shop for the Best Data

Real-time processing and tens of millions of updates each month give you the edge in your sales and marketing campaigns. We’ve developed proven partnerships to give you complete and timely results every time you run a file with us.

Self-Service, Secure Batch, API, and Custom Products

We can work with any file — including millions of records — and any format to provide the best results. Simply put, if you can send or upload your records, we can append them.

Get an Estimate

Our expert data consultants can evaluate your needs to provide the best solutions, and even provide a free match report test to determine how much we can improve your contact files.