Email finding and verification platform that discovers professional email addresses from company domains, verifies deliverability, and runs cold email campaigns. Pioneered unified credit system and pattern-based prediction across 100M+ email database — used by 6M+ professionals.
Finds and verifies professional email addresses — search a company domain, get verified contacts for outreach.
Hunter.io is a specialized platform for discovering, verifying, and reaching professional email addresses at scale. The core Domain Search crawls public sources to find all known email addresses at a company domain, revealing email patterns (like firstname.lastname@company.com) and individual contacts with job titles, departments, and confidence scores. The Email Finder takes a person's name and company domain and predicts their email address using pattern analysis across Hunter's database of 100M+ verified professional emails. The Email Verifier checks deliverability by validating syntax, verifying the domain's mail server, and testing the specific mailbox — critical for maintaining sender reputation during outreach. Hunter has expanded beyond pure discovery into an all-in-one outreach platform: the Starter plan and above include cold email campaigns with sequence automation, A/B testing, and tracking. The Discover feature is a built-in B2B database with company and contact filters for prospecting without needing a separate data provider. The AI Writing Assistant helps craft personalized outreach templates. The Chrome extension remains one of Hunter's strongest features, letting you find verified emails directly from LinkedIn profiles or company websites during active prospecting. Bulk operations handle list verification and domain searches for thousands of contacts at once. All plans include unlimited team members, and credits are unified — 1 credit = 1 email found via Domain Search, Email Finder, or Bulk Email Finder. Verification uses separate credits. The platform serves over 6 million users with particularly strong coverage in North America and Western Europe.
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Hunter.io is the most focused and reliable tool for finding and verifying professional email addresses, trusted by 6M+ users. The Chrome extension is best-in-class for prospecting from LinkedIn. The platform has evolved into an all-in-one outreach tool with campaigns, a B2B database, and AI writing assistance, making it viable as a single tool for small sales teams. Limitations include weaker international coverage, basic campaign features compared to dedicated cold email platforms, and a smaller prospect database than Apollo or ZoomInfo. For teams that primarily need verified emails with clean pricing, Hunter remains the go-to choice.
Discovers all known email addresses at a company domain by crawling public sources, returning contacts with names, job titles, departments, and confidence scores alongside the company's email pattern.
Use Case:
An SDR targeting a mid-market SaaS company runs Domain Search to find all marketing and sales contacts, identifying the VP of Marketing and three team members for a multi-threaded outreach approach.
Predicts a specific person's professional email address using their first name, last name, and company domain, applying pattern analysis and verification with confidence scoring.
Use Case:
After identifying a decision-maker on LinkedIn, a sales rep uses Email Finder to get their verified email address and immediately adds them to a targeted outreach sequence.
Validates email deliverability through syntax checks, domain verification, and mail server testing, returning accept-all detection and deliverability status to minimize bounces.
Use Case:
Before launching a campaign to 5,000 trade show leads, the marketing team bulk-verifies the list to remove invalid addresses and protect their domain sender reputation.
Built-in email sequencing platform with multi-step sequences, A/B testing, link tracking, reply detection, and scheduling — integrated directly with the discovery and verification tools.
Use Case:
A startup founder discovers 200 target prospects via Domain Search, verifies their emails, and launches a 3-step cold email sequence — all without leaving Hunter's platform.
Built-in B2B contact and company database with filters for industry, company size, job title, location, and technology stack, providing prospecting without a separate data provider.
Use Case:
A sales team filters for CTOs at Series B SaaS companies in the US with 50-200 employees, building a targeted prospect list directly in Hunter without needing ZoomInfo or Apollo.
Browser extension that surfaces email addresses from LinkedIn profiles, company websites, and professional directories with one click, showing verification status and confidence scores.
Use Case:
During a LinkedIn prospecting session, an SDR clicks the Hunter extension on each target profile, instantly seeing their verified email address without context-switching to a separate tool.
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$34/mo (billed yearly at $408)
$104/mo (billed yearly at $1,248)
$209/mo (billed yearly at $2,508)
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In 2026, Hunter.io launched the Discover B2B database with company and contact filters for prospecting, added an AI Writing Assistant for campaign content, unified the credit system across search features, and expanded campaign capabilities with A/B testing and enhanced tracking.
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All-in-one sales intelligence platform with 275M+ verified contacts, email sequences, built-in dialer, CRM, and AI-powered outreach automation for B2B sales teams.
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Enterprise B2B intelligence platform providing access to 321 million professional contacts and 104 million companies with AI-powered prospecting, intent data signals, and automated sales workflows to accelerate pipeline generation and revenue growth.
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