Turn partial records into complete, reachable customers. We append verified email addresses and postal addresses to your file using CustomerID identity data — so you can reach every customer on every channel.
A name with no email can't be emailed. An email with no address can't be mailed. Incomplete customer records quietly shrink every campaign's reachable audience — and the gap grows as data ages.
Missing emails or addresses mean whole segments of your list can't be contacted — wasted CRM value sitting idle.
People move and change emails constantly. Records that were complete two years ago are quietly going stale.
Appending the wrong way — without permission compliance — creates real legal and deliverability risk.
Cheap append vendors won't tell you the true match rate or accuracy, so you can't trust the file.
Using CustomerID's identity graph, we append verified emails and postal addresses to your records — permission-compliant, accuracy-scored, and reported with true match rates — so every channel reaches more of your audience.
Reach customers you can only mail today. We match verified, deliverable email addresses to your postal records using the CustomerID identity graph.
Permission-compliant processing with deliverability scoring.
Mail customers you can only email today. We match current, CASS-verified mailing addresses to your email or name records — enabling direct mail, shared mail, and solo mail follow-up.
Includes move-update processing to catch relocations.
Fill every gap. Append names to emails, phone numbers to records, and demographics where needed — building a complete, contactable profile.
One pass completes the record across channels.
Done the right way. Append is processed to opt-in and regulatory standards with suppression against DNC and opt-out files — protecting deliverability and your brand.
Compliance documentation provided.
Know exactly what you got. We report true match rates, accuracy scores, and verification status — no black-box files.
You see the quality before you deploy.
Append feeds the whole platform. Enriched records flow straight into email, direct mail, retargeting, and CRM Backfill — one complete profile, every channel.
Turns a partial list into a full-funnel audience.
Secure upload. Provide your customer records — whatever fields you have. We assess coverage and gaps.
Fast turnaround. CustomerID matches verified emails and addresses, applies compliance suppression, and scores accuracy.
Ready to use. Receive your enriched, match-rate-reported file — ready for email, mail, and retargeting.
AI handles the complexity. You get the results.
Append verified emails and postal addresses to your file with CustomerID — permission-compliant and match-rate reported.
Start an Append Project⚡ Powered by CustomerID • ⚡ Permission-Compliant • ⚡ Match-Rate Reporting