Enrich any list against
150M+ verified contacts.
Upload a CSV or Excel file, import a Google Sheet, connect your CRM, or call the API. Sendburg fills in verified work emails, direct-dial phones, job titles and company firmographics — and refunds any email that bounces.
Free plan · 10,000 credits every month · no credit card
Three ways to enrich
Contacts
Upload a CSV or Excel file, import a Google Sheet, or paste names + companies. We return each person's verified work email, direct-dial phone, title, seniority and company — matched to our database of 150M+ people.
Companies
Upload company names or domains and get firmographics back: industry, employee size, headcount, founding year, HQ location and LinkedIn — across 15M+ companies.
CRM & API
Connect Salesforce or HubSpot to keep records enriched, or call POST /api/v1/enrich to enrich programmatically from your own stack.
How it works
Upload, import, connect or call
Drop a CSV or Excel file, import a Google Sheet, connect your CRM, or POST rows to the API — map your columns in a click.
We match to our data
Each row is matched by email, name + company, or domain against 150M+ verified contacts and 15M+ companies.
Download or sync back
Get an enriched file, write results into a new Google Sheet in your Drive, push to your CRM, or read them from the API — invalid emails auto-refunded.
Frequently asked questions
What is data enrichment?
Data enrichment fills the gaps in your existing lists — turning a name and company into a verified email, a domain into full firmographics, or a partial record into a complete, deliverable contact. Sendburg matches your rows against 150M+ verified contacts and 15M+ companies.
How do I enrich a CSV?
Open Enrichment in the app, upload your CSV, map your columns (email, name, company or domain — whatever you have), and download the enriched file. Up to 1,000 rows per file.
Can I enrich a Google Sheet or Excel file?
Yes. Upload an Excel (.xlsx) file exactly like a CSV, or paste a shared Google Sheets link to import it. You can also connect Google and have Sendburg write the enriched results straight into a brand-new Google Sheet in your Drive — your original sheet stays untouched.
Can I enrich my CRM?
Yes. Connect Salesforce or HubSpot to keep contacts and accounts enriched with verified emails, phones and firmographics — no manual exports. CRM sync is available on the Scale plan.
Is there an enrichment API?
Yes. POST your rows to /api/v1/enrich with your API key and get enriched contacts or companies back as JSON — the same matching and verification as the app.
How are credits charged?
You see what we can add and what it costs before you pay, and you only pay for what you choose: 1 credit per new verified email, 30–100 credits per phone (by source), and 1 credit per row of details or per company enriched. Anything you've already unlocked is free, and any email that comes back undeliverable is automatically refunded. Enrichment is available on paid plans.
Enrich your first list free
10,000 credits every month, no credit card. Upload a CSV or call the API in minutes.
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