Hunter.io is the simplest and most popular tool for finding professional email addresses. Type in a company domain and Hunter returns all publicly discoverable email addresses, along with confidence scores and verification status — perfect for targeted outreach.
Product Overview
Hunter combines domain search (finding all emails at a company), email finder (finding a specific person's email), and email verification in one lightweight tool. Its transparency about data sources (websites, public documents, social profiles) builds trust in data quality. The Chrome extension and API make it easy to integrate into any prospecting workflow.
Key Features
- Domain Search: Find all publicly discoverable emails at any company domain.
- Email Finder: Predict and verify a specific person's email from their name and company.
- Email Verifier: Verify email deliverability to avoid bounces before sending.
- Bulk Tasks: Process hundreds of email lookups or verifications in bulk via CSV upload.
- Campaigns: Basic email outreach sequences built directly into Hunter.
Best For
Founders, SDRs, recruiters, and journalists who need quick, reliable email discovery for targeted outreach without a large data platform.
Pricing
Free plan (25 searches/month). Starter at $34/month; Growth at $104/month; Business at $349/month.
Key Integrations
Salesforce, HubSpot, Pipedrive, Zapier, Google Sheets, Gmail
Pros
- Very easy to use
- Transparent data sources
- Excellent email verifier
- Generous free plan
Cons
- Not a full prospecting database
- Limited to email (no phone numbers)
- Coverage depends on public web data
RevOps Jobs-to-Be-Done
- Contact discovery for outbound prospecting — SDRs use Hunter to find verified email addresses for target prospects by entering their name and company domain — eliminating the need to guess email formats or buy expensive database licenses. KPI: Find verified email addresses for 70%+ of target contacts in minutes vs. hours
- Domain email discovery for account-based prospecting — Sales teams use Hunter's domain search to find all indexed email addresses at a target account — enabling buyer committee outreach beyond a single known contact. KPI: Discover 3x more buyer committee contacts per target account
- Email list verification before campaigns — Marketing Ops verifies email lists through Hunter before campaigns — removing invalid addresses that would spike bounce rates and hurt deliverability. KPI: Reduce email bounce rate below 2% with pre-campaign verification
How It Fits Your Stack
Primary system of record: Works standalone; integrates with Salesforce and HubSpot
Key integrations: Salesforce, HubSpot, Pipedrive, Zapier, Google Sheets, Gmail
Data flows: Hunter surfaces email addresses via web app, Chrome extension, or API. Found contacts push directly to CRM or export as CSV. Bulk verification returns confidence scores and validity status.
Security & Compliance
- SSO / SAML: Yes (Google SSO)
- RBAC / permissions: Yes
- Audit logs: No
- Certifications: GDPR
- Data residency: EU
Implementation & Ownership
- Time to first value: Minutes — web app requires no setup
- Implementation complexity: Low
- Typical owners: SDRs, Account Executives, Marketing
Free tier (25 searches/month) is sufficient for low-volume individual prospecting. Paid plans for team use. GDPR-compliant — only indexes publicly available professional emails.
Proof & Buyer Signals
Ratings: 4.4/5 on G2 (500+ reviews)
What buyers praise:
- Most accurate email finder for professional contacts based on public web data
- GDPR-compliant sourcing is a genuine differentiator for European teams
- Chrome extension finds emails directly on LinkedIn or company websites
Common complaints:
- Email database smaller than ZoomInfo or Apollo for less-indexed companies
- No direct dial phone numbers — email-only tool
Often Compared With
- Apollo.io — Choose Apollo for a larger contact database with phone numbers and integrated sequencing; choose Hunter.io for GDPR-first email finding with clean public-data sourcing.
- Lusha — Choose Lusha for direct dial phone numbers alongside email; choose Hunter.io for email-only finding with better GDPR compliance.
- NeverBounce — Choose NeverBounce for bulk email list verification; choose Hunter.io for combined email finding + individual verification in one tool.
