Fast, easy, secure email data solutions for all industries.

How we help by need

By Need

Access email-centric data that anchors your data-oriented business strategy.
Improve Deliverability and Response
Connect Data Across Channels
Foster Customer Loyalty
Mitigate Fraud and Risk
industry

By Vertical

Maximize the potential of your First Party data in any industry.
eCommerce and Retail
FinTech
Nonprofit and Political
Technology Platforms

Invest in your first party data.

email validation

Email Verification

Catch and correct invalid email data and preserve your marketing spend.
SafeToSend®
Email Validation
List Guard™
identity matching

Identity

Get a complete picture of your customers across channels.
Email Append
Postal Append
Email Change of Address
Email Intelligence
fraud prevention

Fraud Prevention

Prevent fraud, mitigate risk and protect the integrity of your database.
engagement

Engagement

Personalize offers, segment + win back customers and get higher response rates.
Email Activity Signals
Website Visitor ID

Learn from our
marketing and data experts.

how we help center

Help Center

Get the answers
API pricing

API Documentation

Let's get technical
free list check

Free List Check

A free health scan for your email addresses
integrations

Integrations

Discover our partners
blog

Blog

See what we're writing about
content hub

Knowledge Center

Videos, whitepapers, ebooks, and more
case studies

Case Studies

See what works
under the hood

Under the Hood

Dive deep into the machine that powers our email data solutions
Email Verification

Leaders in email data services since 1999.

company overview

Company Overview

More about AtData
careers

Careers

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news and events

News & Events

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security

Security

IS0-27001 Certified for you

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TowerData Login

Catch and correct invalid email data and preserve your marketing spend.
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FreshAddress Login

Catch and correct invalid email data and preserve your marketing spend.
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Resources

News & Events

AtData Expands High-Risk Email Domain Identification in Its Flagship SafeToSend® Email Verification Service

March 20, 2023
Dedham, MA (March 20, 2023) – AtData, The Email Address Experts, today announced the launch of additional high-risk and dangerous email domain...
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AtData Enters Strategic Partnership With Zirous!

March 6, 2023

AtData Will Be Running This Year’s Women@LeadsCon Program At LeadsCon, 2023!

March 1, 2023

Learn how to improve lead data with the email address experts at LeadsCon 2023!

February 17, 2023

AtData Announces New Fraud Prevention API Release at MRC, 2023!

February 15, 2023

We’re excited to join the experts in the fraud prevention industry as we sponsor MRC Vegas 2023!

February 15, 2023

Experts from AtData and RPE Origin Sit Down to Talk First-Party Data Strategy!

January 31, 2023

Join Us for Our Next Fireside Chat with Inbox Monster!

November 7, 2022

Email Data Stops Fraud in Its Tracks at Money 20/20, 2022!

October 13, 2022

AtData Is Headed To Money 20/20 2022!

September 30, 2022

We're Sponsoring at GURU Conference 2022!

September 30, 2022

Come See Us at The Financial Brand Forum 2022!

September 16, 2022

AtData and Inbox Monster Partner to Empower Email Marketers with Industry-Leading Email Verification and Deliverability Insights

July 28, 2022

Join us for a Fireside Chat with Maropost on August 18th!

July 27, 2022

TowerData and FreshAddress launch a new brand identity, AtData.

May 2, 2022

TowerData, The Leader in Email Data, Launches New Email Fraud Prevention Service

March 7, 2022

TowerData Heads to MRC in Las Vegas, March 7-10, 2022

January 25, 2022

TowerData and FreshAddress Merge to Form Premier Email Data Company

October 13, 2021

Diarmuid Thoma Joins TowerData as VP of Fraud & Data Strategy

August 24, 2021

AtData’s Statement On Apple Privacy Changes

July 27, 2021