Smarter Data.
Stronger Connections.
Better Results.
For 30 years, we’ve helped marketers and businesses find the right people at the right time. Verified lists, real leads, and now a full HighLevel agency under one roof.
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.
Fill Your Funnel With People Who Actually Buy
What if the problem isn’t your offer or your sales team? What if you’re just talking to the wrong people?
Email Lists
Verified, deliverable email addresses across every vertical and demographic.
Phone & Mobile Lists
Cell and landline numbers including DNC-compliant contacts for guaranteed connections.
Postal & Direct Mail
NCOA-updated mailing addresses with PCOA enhancement for up to 20% better delivery.
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 verified consumer data across every major buying segment.
Business opportunity seekers and MLM prospects actively looking for their next venture.
Real estate, stock, and alternative investment buyers with verified activity.
Active sweepstakes entrants and contest players across all demographics.
Timeshare owners, buyers, and exit seekers — verified and current.
Households that moved in the last 30-90 days — high-intent buyers.
Verified homeowners filtered by equity, property value, and location.
55+ consumers for insurance, health, and lifestyle offers.
Charitable givers across political, religious, and cause segments.
Our most popular file. Unsecured debt over $10k, ready to convert.
Target the Right Businesses
Decision-maker contacts across every major industry — verified, 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.
38 million cell phone numbers, DNC-scrubbed and ready to dial.
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.
Verified US military veterans segmented by branch, era, and location.
Vehicle owners by make, model, year, mileage, and insurance status.
Verified crypto buyers and investors across Bitcoin, Ethereum, and altcoins.
Business owners who have taken or are actively seeking MCA funding.
Internet Optin Lists
People who raised their hand and told us exactly what they want. Optin leads convert because the intent is already there.
- 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
Scrubbing bad data from your list is the single highest-ROI move most companies never make. We clean email, postal, and phone lists — removing undeliverables, deceased records, and contacts that will never convert.
Learn About Hygiene →Data Enhancement
We append geographic, demographic, psychographic, and firmographic data to your existing list. The result is a richer, more targetable asset that converts at a higher rate without buying new records.
Learn About Enhancement →NCOA & PCOA Updating
USPS NCOA only catches 80% of movers. Our PCOA service uses multiple data sets to increase delivery accuracy by up to 20%, tracks movers up to 30 years back, and flags deceased contacts before you waste postage.
Learn About PCOA →Phone Appending
Too many undeliverable calls? We append cell and landline numbers — including DNC-compliant contacts — to your existing list. Spend $1 on appending, save $10 on wasted dials.
Learn About Phone Append →Email Appending
Turn a postal list into a multi-channel campaign. We match your records against our verified email database and append deliverable addresses — so you can reach the same people by mail and by inbox.
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 Review