Your Marketing Lists and Leads Data Broker
Since 1997, List57 has helped businesses select marketing lists, leads, and databases for their audience. Compare business and consumer data, explore opt-in lead categories, and talk to a real person about your campaign.
List57 has been helping businesses find the right people since 1997. We sell targeted marketing lists, coreg leads, business and consumer databases, and we run a HighLevel CRM agency — all from one shop with 30 years of direct marketing experience behind it.
Choose Marketing Lists for Your Audience
What if the problem isn’t your offer or your sales team? What if you’re just talking to the wrong people?
Email Lists
Explore email lists by industry and audience. Confirm available fields, source details, and permitted uses before ordering.
Phone & Mobile Lists
Compare cell and landline contact lists. Confirm coverage, suppression requirements, and suitability for your intended outreach.
Postal & Direct Mail
Find mailing lists for direct mail campaigns and discuss address updating and suppression options.
Data Enhancement
Append geographic, demographic, and psychographic data to make your lists work harder.
Reach the Right Consumers
From sweepstakes players to real estate investors, we have accurate consumer data across every major buying segment.
Business opportunity seekers and MLM prospects actively looking for their next venture.
Explore investor audiences and confirm the source, selection criteria, and available fields for your campaign.
Active sweepstakes entrants and contest players across all demographics.
Timeshare owners, buyers, and exit seekers — current and segmented.
Explore new mover and homeowner audiences. Confirm the available reporting period and geographic coverage.
Homeowners filtered by equity, property value, and location.
55+ consumers for insurance, health, and lifestyle offers.
Charitable givers across political, religious, and cause segments.
Explore debt lead categories and discuss record definitions, available selections, and campaign requirements.
Target the Right Businesses
Decision-maker contacts across every major industry — accurate, enhanced, and ready for your campaign.
Decision-makers at small businesses across every industry and geography.
CEOs, CFOs, CMOs, and senior leadership at companies of all sizes.
Doctors, nurses, specialists, and healthcare facilities nationwide.
Agents, brokers, investors, and property managers across the USA.
Banks, credit unions, advisors, and financial professionals.
Tech companies, SaaS, IT services, and software businesses.
Restaurants, catering, food distributors, and hospitality businesses.
Brick-and-mortar retailers and e-commerce businesses across all categories.
General contractors, subcontractors, and construction companies.
Hard-to-Find Data, Ready to Go
Some of the most valuable lists are the ones that are hardest to build. We’ve already done that work.
People who raised their hand and told us exactly what they want.
Compare targeted mobile lists and national databases. Confirm source, available fields, and suppression requirements.
Full USA business and consumer databases — 100M+ records each.
Live warm transfers from people actively looking for your product right now.
120M voter records with party affiliation, district, and contact data.
US military veterans segmented by branch, era, and location.
Vehicle owners by make, model, year, mileage, and insurance status.
Crypto buyers and investors across Bitcoin, Ethereum, and altcoins.
Business owners who have taken or are actively seeking MCA funding.
Internet Optin Lists
Explore topic-specific opt-in leads. Review the source, record age, and available consent documentation for the category you select.
- Debt Leads — Most Popular
- Bizopps & MLM
- Credit Repair
- CoReg Leads
- Mortgage Refinance
- Final Expense
- Health Insurance
- Diabetic Leads
- Crypto & Bitcoin
- Weight Loss
- Student Loan Debt
- EDU / Education
These people already said yes.
Internet optins are people who filled out a form online expressing interest in a specific topic — debt relief, insurance, business opportunities, and more. They’re not cold. They’re warm.
Browse All Optin Lists →Your List Is Only as Good as the Data In It
Bad data costs more than good data. Here’s how we make your existing lists perform better.
Data Hygiene
Review existing email, postal, and phone records for cleaning. Define duplicate rules, address checks, suppression criteria, and the output your team needs.
Learn About Hygiene →Data Enhancement
Discuss geographic, demographic, and firmographic fields for your existing records. Matching and field coverage depend on the source file and requested attributes.
Learn About Enhancement →NCOA & PCOA Updating
Discuss NCOA and PCOA address updating for your mailing file. Confirm the applicable processing, source dates, and suppression options before your next direct mail campaign.
Learn About PCOA →Phone Appending
Explore phone appending for customer records missing a contact number. Review input requirements, match coverage, line types, and suppression needs; a matched number does not establish permission to call or text.
Learn About Phone Append →Email Appending
Explore email appending for records missing an email address. Confirm matching criteria, address checks, and permissions before using the returned contact details.
Learn About Email Append →Suppression & DNC Scrubbing
Before you dial or mail, run your list through our suppression service. We scrub against the National DNC Registry, internal opt-out lists, and known litigator databases — protecting your campaign and your company.
Learn About Suppression →
Russ Guillemot
Founder & CEO
Cori Guillemot
PartnerWe’ve Been Doing This Since Before Google Existed
List57 started in 1997 when direct mail was king and the internet was still a novelty. We’ve watched the industry go through fax blasts, email marketing, social media, programmatic ads, and now AI-generated search. Through all of it, one thing hasn’t changed: the right data, delivered to the right marketer, still wins.
“Over 30 years, we’ve worked with thousands of marketers who came to us with the same problem — they were spending money on campaigns that weren’t converting. Usually the answer was the data.”
Today, List57 has expanded beyond data. We’re now a certified HighLevel partner, which means we can not only get you the right list — we can set up the entire follow-up system that turns that list into revenue. Same company, same people, 30 years of experience, and a lot more tools.
Our Full Story →What If Every Lead You Bought Actually Got Followed Up?
Most businesses buy a list, send one email, and wonder why it didn’t work. The problem isn’t the list. It’s what happens after. We now offer a fully managed HighLevel setup — your CRM, follow-up sequences, booking calendar, and review requests — all running automatically.
- Every missed call gets an instant text back
- Automated follow-up sequences that run for weeks
- Review requests go out after every completed job
- Online booking so clients can schedule themselves
- A real CRM so you can see where every lead stands
- We build it, configure it, and manage it for you
Ready to Find Your Next 1,000 Customers?
Tell us what you’re selling and who you want to reach. We’ll find the right list, pull the count, and get you a price — usually the same day.
Request a Free QuoteNo contracts. No long-term commitment. Cancel anytime.
30 Years of Happy Customers
We’ve been in the list business since 1997. Here is what some of our clients have to say.
List57 has been our go-to data source for over five years. The quality is consistently high and Cori always makes sure we get exactly what we need. Highly recommend.
We ordered a large batch of debt leads and the response rate was well above what we had seen from other vendors. Fast delivery, clean data, and great communication.
Cori and her team know their data. We have been buying business lists from them for years and the accuracy is hard to beat. They actually answer the phone, which is rare.
Worked with us before? Cori and the team would really appreciate a quick Google review.
⭐ Leave a Google ReviewTalk to a Real Person About Your List
Tell us who you are trying to reach and we will pull counts, tell you which file fits, and quote it. If this category is wrong for your offer we will say so. Every List57 client works directly with us from the first question through delivery.
Call 619-678-1000
Email info@List57.com