250+ G2 reviews

Real-Time Email Verification & List Cleaning Platform

Improve your email deliverability and protect your sender reputation by removing invalid emails, hard bounces, and spam traps before you hit send.

SOC 2 Type II

Certified

GDPR

Compliant

99%

Deliverability

Guarantee

Trusted by 10,000+ fast-growing companies worldwide

Join leading GTM, product, and growth teams who rely on us everyday

We

Guarantee To Be The Markets

Guarantee To Be The

Markets

Most Accurate Verifier

Most Accurate

Verifier

Deliverable.co uses a combination of proprietary technology and artificial intelligence to find, to verify contact details.

Syntax & Format Check

We verify that every email follows proper formatting rules and RFC standards before any deeper checks are performed.

Syntax & Format Check

We verify that every email follows proper formatting rules and RFC standards before any deeper checks are performed.

Domain & MX Validation

We confirm that the email domain exists and is configured to receive mail using live DNS and MX record checks.

Domain & MX Validation

We confirm that the email domain exists and is configured to receive mail using live DNS and MX record checks.

Mailbox Existence Check

We safely ping recipient mail servers to determine whether a mailbox actually exists-without sending an email.

Mailbox Existence Check

We safely ping recipient mail servers to determine whether a mailbox actually exists-without sending an email.

Identify Relevant Leads

And Find

And

Their Contact Details In Seconds.

Find Their Contact Details In Seconds.

Deliverable.co uses a combination of proprietary technology and artificial intelligence to find, verify, and enrich contact details.

CRM 2-Way Sync

Automatically verify new and existing contacts inside your CRM.

CRM 2-Way Sync

Automatically verify new and existing contacts inside your CRM.

Automatically Verify Emails Inside Your CRM

Automatically verify email addresses inside your CRM and email platforms on a daily basis.

Automatically Verify Emails Inside Your CRM

Automatically verify email addresses inside your CRM and email platforms on a daily basis.

Real-Time Email Verification API

Verify emails instantly at signup, forms, or CRMs using our lightning-fast API.

Real-Time Email Verification API

Verify emails instantly at signup, forms, or CRMs using our lightning-fast API.

Verify Emails

We'll tell you if it's actually deliverable , and not a "confidence score".

Verify Emails

We'll tell you if it's actually deliverable , and not a "confidence score".

Protect Sender Reputation

Avoid hard bounces, spam traps, and blacklist risks with advanced detection.

Protect Sender Reputation

Avoid hard bounces, spam traps, and blacklist risks with advanced detection.

Clean Emails In 3

Simple Steps

Guarantee To Be The

No setup. No learning curve. Just accurate verification.

Upload a list or connect the API

Upload a CSV file or connect your signup forms using our real-time API.

Upload a list or connect the API

Upload a CSV file or connect your signup forms using our real-time API.

We verify emails in real time

Emails are verified for syntax, domain, and mailbox using live signals.

We verify emails in real time

Emails are verified for syntax, domain, and mailbox using live signals.

Send with confidence

Use clean, verified emails to protect deliverability and improve inbox placement.

Send with confidence

Use clean, verified emails to protect deliverability and improve inbox placement.

Here’s What Our

Customers Say

Guarantee To Be The

If you're using Apollo just stop, and get a subscription here. Literally 10,000x times better. Coming from a guy doing lead gen for 35 DFY B2B clients.
Andreas Falsig
CTO @EmploAI
What I like most about A-Leads is the ability to quickly find and connect with high quality leads using A-Leads' powerful features.
Can T.
Founder @ Allbound OS
Having verified contacts across teams removed guesswork from outbound. Everyone works from the same trusted dataset now.
Lance Goldman
CEO @ Opp Agency
A-Leads data is way better than apollo to ay the least. First campaign, absolutely great engagement. Highly recommend
Alexander Treistman
Managing Partner @ Post Oak Group

If you're using Apollo just stop, and get a subscription here. Literally 10,000x times better. Coming from a guy doing lead gen for 35 DFY B2B clients.
Andreas Falsig
CTO @EmploAI
What I like most about A-Leads is the ability to quickly find and connect with high quality leads using A-Leads' powerful features.
Can T.
Founder @ Allbound OS
Having verified contacts across teams removed guesswork from outbound. Everyone works from the same trusted dataset now.
Lance Goldman
CEO @ Opp Agency
A-Leads data is way better than apollo to ay the least. First campaign, absolutely great engagement. Highly recommend
Alexander Treistman
Managing Partner @ Post Oak Group

A-Leads is the best lead source I've ever used. I already got great leads from the 'free leads' I received and they were better than 10,000 Apollo leads… No joke..
Daniel Achog
BDR @ VoiceLine
The accuracy. It's exactly what senior sales teams have been crying out for. If this is where outbound data is heading, A-Leads is clearly leading the charge.
Ray Franklin
Head of Sales Marketplaces @ Leads.io
After testing more than 25 tools and data providers, A-Leads stood out as the top performer especially when it came to data accuracy. Nothing else even came close.
Tufan Erdogan
Team Lead @ Jotform
Everything with A-Leads has been seamless. Quickly understood our ICP and accurately cracked our hardest audience segment without heavy setup
Chris Filly
VP of Marketing @ Callvu
We are super happy with A-Leads, they're fast, reliable, give us extremely good data & overall super responsive. Nothing else even came close.
Vivien Garnès
CEO @ Upfluence

A-Leads is the best lead source I've ever used. I already got great leads from the 'free leads' I received and they were better than 10,000 Apollo leads… No joke..
Daniel Achog
BDR @ VoiceLine
The accuracy. It's exactly what senior sales teams have been crying out for. If this is where outbound data is heading, A-Leads is clearly leading the charge.
Ray Franklin
Head of Sales Marketplaces @ Leads.io
After testing more than 25 tools and data providers, A-Leads stood out as the top performer especially when it came to data accuracy. Nothing else even came close.
Tufan Erdogan
Team Lead @ Jotform
Everything with A-Leads has been seamless. Quickly understood our ICP and accurately cracked our hardest audience segment without heavy setup
Chris Filly
VP of Marketing @ Callvu
We are super happy with A-Leads, they're fast, reliable, give us extremely good data & overall super responsive. Nothing else even came close.
Vivien Garnès
CEO @ Upfluence

Scale, Flex & Innovate
With Confidence

We power high-growth teams with a reliable, scalable platform designed to minimize operational overhead and maximize ROI—no matter your business size.

99%

Customer Satisfaction

Trusted by teams worldwide for performance and reliability.

5B+

Daily API Calls

Built to handle massive workloads without slowing down.

100M+

Verified emails per day

Powering global communication at enterprise scale.

7.3B+

Webhooks Triggered

Real-time automation for modern data-driven teams.

See How

Deliverable

Can Help You

Cost Efficiency

Institutional Value

Operational Efficiency

Digital Reach

Jesus Centerio

Director of Strategic Partnerships @ 66degrees

RevOps teams can standardize data, protect domains, and give every rep more of the right leads at a clear cost per lead.

Standardize GTM inputs

Give every team the same verified emails and mobile numbers from one source, so performance depends on playbooks and skills, not on who bought which list.

Standardize GTM inputs

Give every team the same verified emails and mobile numbers from one source, so performance depends on playbooks and skills, not on who bought which list.

Jesus Centerio

Director of Strategic Partnerships @ 66degrees

RevOps teams can standardize data, protect domains, and give every rep more of the right leads at a clear cost per lead.

Standardize GTM inputs

Give every team the same verified emails and mobile numbers from one source, so performance depends on playbooks and skills, not on who bought which list.

Standardize GTM inputs

Give every team the same verified emails and mobile numbers from one source, so performance depends on playbooks and skills, not on who bought which list.

Jesus Centerio

Director of Strategic Partnerships @ 66degrees

RevOps teams can standardize data, protect domains, and give every rep more of the right leads at a clear cost per lead.

Standardize GTM inputs

Give every team the same verified emails and mobile numbers from one source, so performance depends on playbooks and skills, not on who bought which list.

Standardize GTM inputs

Give every team the same verified emails and mobile numbers from one source, so performance depends on playbooks and skills, not on who bought which list.

Jesus Centerio

Director of Strategic Partnerships @ 66degrees

RevOps teams can standardize data, protect domains, and give every rep more of the right leads at a clear cost per lead.

Standardize GTM inputs

Give every team the same verified emails and mobile numbers from one source, so performance depends on playbooks and skills, not on who bought which list.

Standardize GTM inputs

Give every team the same verified emails and mobile numbers from one source, so performance depends on playbooks and skills, not on who bought which list.

Cost Efficiency

Institutional Value

Operational Efficiency

Digital Reach

Jesus Centerio

Director of Strategic Partnerships @ 66degrees

RevOps teams can standardize data, protect domains, and give every rep more of the right leads at a clear cost per lead.

Standardize GTM inputs

Give every team the same verified emails and mobile numbers from one source, so performance depends on playbooks and skills, not on who bought which list.

Standardize GTM inputs

Give every team the same verified emails and mobile numbers from one source, so performance depends on playbooks and skills, not on who bought which list.

Jesus Centerio

Director of Strategic Partnerships @ 66degrees

RevOps teams can standardize data, protect domains, and give every rep more of the right leads at a clear cost per lead.

Standardize GTM inputs

Give every team the same verified emails and mobile numbers from one source, so performance depends on playbooks and skills, not on who bought which list.

Standardize GTM inputs

Give every team the same verified emails and mobile numbers from one source, so performance depends on playbooks and skills, not on who bought which list.

Jesus Centerio

Director of Strategic Partnerships @ 66degrees

RevOps teams can standardize data, protect domains, and give every rep more of the right leads at a clear cost per lead.

Standardize GTM inputs

Give every team the same verified emails and mobile numbers from one source, so performance depends on playbooks and skills, not on who bought which list.

Standardize GTM inputs

Give every team the same verified emails and mobile numbers from one source, so performance depends on playbooks and skills, not on who bought which list.

Jesus Centerio

Director of Strategic Partnerships @ 66degrees

RevOps teams can standardize data, protect domains, and give every rep more of the right leads at a clear cost per lead.

Standardize GTM inputs

Give every team the same verified emails and mobile numbers from one source, so performance depends on playbooks and skills, not on who bought which list.

Standardize GTM inputs

Give every team the same verified emails and mobile numbers from one source, so performance depends on playbooks and skills, not on who bought which list.

Integrates

with

with Your Tools

Your Tools

We power high-growth teams with a reliable, scalable platform designed to minimize operational overhead and maximize ROI—no matter your business size.

Learn More