Email Verification

Prospeo is a credit-based B2B contact database with verified emails, direct mobile numbers, intent filters, CRM enrichment, and a public API.

HockeyStack is a B2B GTM intelligence platform that tracks buyer journeys, compares attribution models, and adds AI agents for account research.

QuickEmailVerification is a bulk and API email verification service that cleans lists to cut bounces, with pay-as-you-go credits that never expire.

Verifalia is a long-running email verification service offering batch list cleaning, a real-time API, and credit packs alongside daily-allowance plans.

Enrow finds and verifies B2B emails and phone numbers on a shared credit system that only charges for verified results, with plans starting at EUR 15 per month.

Pay-as-you-go email verification with spam trap detection, blacklist monitoring, and CRM integrations; credits never expire, plans start at $19.

Reoon Email Verifier checks list validity with SMTP-level testing and credit-based pricing, plus a free 600-verification monthly tier for small senders.

BriteVerify verifies emails, phone numbers, and addresses to cut bounces, but Validity no longer publishes self-serve pricing or a signup path for it.

Xverify verifies email addresses, phone numbers, and postal addresses in real time or in bulk, with typo correction and fraud screening, priced pay-as-you-go.

LeadMagic is an API-first B2B data provider for email, mobile, and company enrichment, priced on a shared credit pool starting at $49/month.

Abstract API sells developer REST APIs for email and phone validation, IP geolocation, and company enrichment, each billed as a separate subscription.

Mailgun is an email-sending API and SMTP platform for developers, with list validation and deliverability tools; paid plans start at $15 per month.

Mailcheck is a bulk email verification tool that scores addresses using SMTP checks plus social network and public-data lookups, not just inbox pings.