The #1 B2B Lead Generation Platform

Find leads that
actually convert.

Collect verified emails, build prospect lists, and reach every inbox. All in one workspace.

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4.8/5
G2
4.7/5
Capterra
4.9/5
Chrome Web Store
50K+
users worldwide
Our Products

Everything you need to generate leads

From finding a single email to enriching thousands of contacts — Leadsario has the tools your team needs.

Email Finder

Find any professional's verified email address by name or domain in seconds.

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Bulk Email Finder

Upload a CSV and get back a fully enriched list with verified emails in minutes.

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Email Verifier

7-tier verification reduces bounces to <1% and protects your sender reputation.

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Chrome Extension

Capture leads from LinkedIn, company websites, and Google Maps without leaving your browser.

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Bulk Email Verifier

Verify thousands of email addresses at once. Clean your list before every send.

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Deliverability Test

Get your domain score, diagnose SPF/DKIM/DMARC issues, and land in the inbox.

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How It Works

From zero to verified leads in 3 steps

No setup fees. No complex integrations. Start generating leads in minutes.

1

Install the extension or upload a list

Add the Leadsario Chrome Extension to start capturing leads as you browse, or upload a CSV with names and company domains to enrich in bulk.

2

Leadsario finds & verifies emails

Our engine searches a 500M+ contact database, runs 7-tier email verification, and returns confidence scores for every result.

3

Export to your CRM or outreach tool

Download your enriched list as CSV or push directly to HubSpot, Salesforce, or any outreach platform via native integrations.

50,000+
Leads collected
98%
Email accuracy
<1%
Bounce rate
3M+
Lookups / month

"What used to take our team a week now runs overnight. Leadsario cut our prospecting time by 80% and the email accuracy is genuinely impressive."

MK
Mert Kaya Growth Lead at Scale.com
FAQ

Frequently asked questions

Everything you need to know about Leadsario.

Is Leadsario free to use?
Yes. Leadsario offers a generous free tier with 50 email lookups per month, access to the Chrome Extension, and the Email Verifier. Paid plans unlock higher volumes, bulk processing, and CRM integrations.
How accurate are the email addresses?
We guarantee 98%+ deliverability on all emails. Every result goes through our 7-tier verification process including MX record checks, SMTP handshake verification, and catch-all detection before being returned to you.
Is Leadsario GDPR compliant?
Yes. Leadsario is fully GDPR compliant. We only surface publicly available business contact information and provide data subject request tools for any contact in our database. Our infrastructure is hosted in EU data centers.
What integrations does Leadsario support?
Leadsario integrates natively with HubSpot, Salesforce, Pipedrive, Outreach, Lemlist, and Apollo. You can also export to CSV or use our REST API to push data anywhere.
How does the bulk email finder work?
Upload a CSV with columns for first name, last name, and company domain. Leadsario processes each row in parallel across our infrastructure and returns an enriched CSV with verified email addresses and confidence scores — typically within minutes for lists up to 10,000 rows.

Start finding leads today — it's free

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