Reverse Email Append Services
Turn Email Addresses Into Complete Customer Profiles
Start with an email address and fill in the missing customer details you need to understand, segment, and reach your audience across more channels. Our reverse email append service helps match emails to names, postal addresses, phone numbers, and available demographic data so your team can build cleaner records and stronger campaigns.
Opt-In Consumer Emails
Hashed Email Records
Consumer Profiles
Trusted by:
What Is a Reverse Email Append?
Reverse email append is a data enhancement process where you start with an email address and match it to additional customer information.
Instead of using a name and postal address to find an email, reverse email append works the other way around. You provide email addresses, and we help return matching identity and contact fields such as name, mailing address, phone number, and available household or demographic attributes.
For marketers, that means stronger customer profiles, better segmentation, and more ways to reach the same audience through email, direct mail, phone, SMS, and digital targeting.
Core reverse email append projects typically start at $0.02 per matched record, with custom pricing available for high-volume files, API usage, and expanded data packages.
PROVEN DATA ADVANTAGE
Match email addresses against large-scale consumer email datasets to uncover missing identity and contact information.
Use hashed email data to support privacy-conscious matching, identity resolution, onboarding, and audience enrichme
Clean files with strong email quality can produce high match rates, helping your team activate more complete records faster.
Only pay for successful matches, making reverse email append practical for both one-time projects and ongoing database enrichment.
Stop Treating Email Addresses Like Complete Customer Records
An email address is useful, but by itself, it does not tell you enough about the person behind the record.
You may know someone subscribed, purchased, submitted a lead form, or joined a list, but you may not know their name, where they live, what household they belong to, whether they can be reached by phone, or what other data can help personalize the next campaign.
The TDG Difference: Our reverse email append service helps you turn email-only records into richer customer profiles. That means better segmentation, more complete CRM data, smarter direct mail targeting, stronger identity resolution, and better multichannel marketing.
Our Proprietary Reverse Email Append Workflow
Our workflow is designed for marketing teams that need usable identity data, not bloated files filled with fields they will never use. We focus on matching email addresses to the contact and profile data that can actually improve campaign performance.
Step 1 — Email Matching & Identity Resolution
We match your email file against trusted consumer and identity datasets to locate the strongest available record-level match. This helps connect an email address to a real-world person, household, or contact profile.
Step 2 — Contact & Profile Enrichment
Once a match is found, we append the fields that fit your project. This may include name, postal address, phone number, household details, demographic indicators, or other available consumer attributes.
Step 3 — Clean Output & Campaign Activation
Your enriched file is returned in a structured format that is ready for CRM upload, direct mail targeting, segmentation, customer scoring, retargeting, phone outreach, and broader multichannel activation.
Additional Data Packages Available
CORE REVERSE EMAIL APPEND DATA PACKAGES
Identity & Contact Match
Append age, gender, marital status, ethnicity, and other foundational customer attributes used to build more accurate audience segments.
Household & Demographic Data
Add income range, credit capacity, homeownership, and household-level signals that help prioritize better-fit audiences for higher-value offers.
Digital & Multichannel Activation Data
Layer in lifestyle interests, consumer behavior, and broader profile indicators that support more relevant messaging and better audience modeling.
How Reverse Email Appending Helps
- Build more complete customer profiles from email-only records.
- Connect email subscribers or leads to postal addresses for direct mail.
- Add phone numbers for sales, support, or reactivation outreach.
- Improve CRM quality by filling missing identity fields.
- Segment audiences by household, demographic, or contact data.
- Reduce wasted spend from incomplete or duplicate customer records.
- Support personalization across email, direct mail, phone, and digital campaigns.
- Improve lead scoring by knowing more about the person behind the email.
What Makes Our Reverse Email Append Data Better?
We help marketers do more than add extra fields to a spreadsheet. We help teams connect email records to useful customer insight so they can make better campaign decisions.
100%
Free data test
Evaluate a sample of your file before you commit so you can review match potential, data depth, and field quality.
24/7
Personalized support
Talk with a real data expert when you need help preparing your file, choosing fields, or planning a custom enrichment project.
$0.02
For one record
Start with affordable pricing designed for both one-time list enrichment and ongoing CRM improvement.
The team at The Data Group always provides us with great data and great customer service.
National Ford Dealer
We have worked with The Data Group for over 15 years and they are our go to for high-quality data.
Marketing Agency
90%
Match rates
Clean, high-quality email files may reach strong match rates, helping your team enrich more records and activate more channels.
Reverse Email Append vs. Email Append
Email append and reverse email append solve different problems.
Email append starts with offline customer data, such as name and postal address, then finds a matching email address.
Reverse email append starts with an email address, then finds matching offline and identity data, such as name, address, phone, and available demographic fields.
If your database already has emails but lacks customer identity details, reverse email append is usually the better fit. If your file has names and postal addresses but missing emails, standard email append is the better choice.
Consumer Data Categories & Match Coverage
Name, Address, Phone, Household Data, Demographics, and More
- Name & Identity Data Connect an email address to a matching consumer identity so your team can reduce unknown or incomplete records.
- Postal Address Data Add mailing addresses where available so email-only contacts can be reached through direct mail and household-level campaigns.
- Phone Number Data Append available phone numbers to support sales follow-up, customer service, lead response, and reactivation campaigns.
- Household & Demographic Data Layer in available consumer profile fields that help with segmentation, personalization, and audience modeling.
- Digital Identity Signals Use email-based matching to support audience onboarding, retargeting, suppression, and paid media activation.
What B2C Sectors We Serve
Retail & Ecommerce
01
Use reverse email append to learn more about subscribers, past buyers, abandoned cart contacts, and loyalty members so you can improve segmentation, direct mail follow-up, and customer reactivation.
Lead Generation & Agencies
02
Turn email-only lead files into richer prospect records that support sales follow-up, lead scoring, direct mail, phone outreach, and better campaign reporting.
Nonprofits & Fundraising
Connect donor emails to household and contact data so your team can improve donor segmentation, direct mail appeals, phone outreach, and reactivation campaigns.
Financial Services, Home Services & Local Brands
04
Append missing identity and contact fields to email leads so your team can prioritize better-fit households and build stronger multichannel campaigns.
Combined Reverse Email, Phone, and Demographic Append
Reverse email append becomes even more useful when it is combined with phone append and demographic append.
With one project, your team can start with an email address and build a more complete customer profile that includes available name, address, phone, and household data. This gives you more ways to reach the customer and more context for choosing the right message.
The result is a cleaner database, stronger segmentation, better personalization, and more campaign options across email, direct mail, phone, SMS, CRM, and paid media.
Transparent Reverse Email Append Pricing Without Hidden Fees
Your pricing should match the data you actually need. Our reverse email append services are built for flexibility, so you can enrich a one-time campaign file or support ongoing CRM improvement.
- Standard reverse email append projects can start at $0.02 per matched record.
- Expanded data packages may vary based on fields, volume, and delivery method.
- Batch processing and API-based workflows are available.
- Free data tests are available so you can review match potential before buying.
- High-volume pricing is available for larger files or recurring projects.
Expert Technical Support
When you have questions about file setup, field selection, API usage, output format, or pricing, you can work with someone who understands how marketers actually use the data.
Industry Articles and News
Related Services
Email Append
Find missing email addresses from name and postal address records so you can expand digital reach.
Phone Append
Add verified phone numbers to customer records for sales, support, and reactivation outreach.
Email Validation
Clean and verify emails before launch to reduce bounces and protect deliverability.
Demographic Append
Add consumer and household attributes to build better audience segments and more relevant campaigns.
Data Append Hub
Explore the full set of append and enrichment solutions available to build more complete customer profiles.
Demographic Append Services FAQs
What is a demographic append service?
A demographic append service enriches your existing customer or prospect records by adding consumer and household attributes that help you segment and market more effectively.
What types of data can I append?
We offer core consumer demographics along with lifestyle, psychographics, property, auto, and other audience-building data packages depending on your goals.
How is demographic append different from buying a mailing list?
Demographic append improves the records you already own. A mailing list gives you entirely new contacts that are not already in your database.
How can demographic append help a B2C marketing team?
It helps you build better customer segments, improve offer relevance, support lookalike modeling, prioritize higher-value households, and reduce wasted spend across channels.
What match rate can I expect?
Match rates depend on the quality of your input file and the data package selected, but clean files can achieve match rates up to 90%.
What is the cost of your data?
Pricing typically ranges from $0.02 to $0.07 per record depending on which demographic package and attributes you want appended.
Can you combine demographic append with phone and email append?
Yes. Many B2C marketers bundle demographic, phone, and email append together to create more complete customer records for multichannel activation.
Is demographic append useful for paid media and lookalike modeling?
Yes. Richer customer profiles can improve seed audiences, sharpen segmentation, and support stronger acquisition modeling across paid channels.
How fast is the batch append process?
Turnaround depends on file size and package depth, but most projects are processed quickly enough to support active campaign planning.
Can I test the service before committing?
Yes. We offer a free data match test so you can review match performance and field value before moving forward with a larger project.
Ready to Test Demographic Append Services?
