Hunter.io

Hunter.io is the email finder platform that built the category in 2014, founded by François Grante and Antoine Finkelstein in Paris. The pitch in one sentence: enter any company domain, get back the email addresses of people working there — verified, with confidence scores, and source attribution. For sales prospecting, recruiting, business development, and any work that requires reaching specific people at specific companies, Hunter is the default first tool in the stack. Used by 3M+ users + 500K+ businesses, it's profitable, bootstrapped, and has stayed focused on the core use case for a decade. What makes Hunter endure is the data quality + workflow design. Hunter's database is built from a combination of public sources (corporate websites, press releases, public databases, LinkedIn profiles) with verification logic (SMTP checks, syntax validation, role-based filtering). The result: when Hunter says an email is 'verified', it usually delivers. When it says 'guess' with 60% confidence, you can use better tools or accept the risk. This transparency about confidence is the differentiator — competitors hide their methodology, Hunter is upfront. The core feature set: • **Domain Search** — enter a company domain, get back all known emails with role + confidence score + source • **Email Finder** — find a specific person's email by name + company • **Email Verifier** — verify any email address for deliverability (avoid bounces hurting your sender reputation) • **Author Finder** — find email of any blog post or article author • **Campaigns** — built-in cold email tool with sequences, follow-ups, A/B testing, deliverability optimization • **Discover** — search for companies matching criteria (industry, size, location, technology) • **TechLookup** — see what tech stack any company uses (built on top of BuiltWith-style data) • **Bulk operations** — upload list of names + companies, get back enriched email contacts • **API + integrations** — Chrome extension, Gmail integration, Salesforce, HubSpot, Pipedrive, Zapier • **Trust + transparency** — see how Hunter found each email, including public source if known For founders + sales + recruiters the use cases: • **Cold outbound sales prospecting** — find prospect emails for B2B sales outreach • **Founder-led sales** — manually identify ideal customers and contact decision-makers • **Recruiting at scale** — find emails of potential hires when LinkedIn outreach hits limits • **Partnership outreach** — find emails of potential partners at other companies • **PR outreach** — find email addresses of journalists + media contacts for product launches • **Investor outreach** — find emails of VC partners + angel investors for fundraising • **Customer research interviews** — find emails of users at target companies for product interviews The pricing is generous and based on monthly searches. Free tier covers 25 searches + 50 verifications/month — useful for casual founder-led sales work. Starter at $34/month gets 500 searches + 1,000 verifications + cold email campaigns. Growth at $104/month covers 5,000 searches + 10,000 verifications. Scale at $349/month for 50,000 searches. Pricing has stayed reasonable vs competitors like Apollo ($79+/month) and ZoomInfo (enterprise pricing in the thousands). Where Hunter wins clearly: the data quality + transparency around confidence scoring is genuinely the best in the category; the free tier is meaningful (25 searches/month is enough for occasional founder-led prospecting); the bundled cold email campaigns feature means you don't need a separate tool (Lemlist/Apollo) for basic outreach; the bootstrapped + profitable + product-focused company is admirable. Where it loses: data depth is meaningfully smaller than Apollo or ZoomInfo at enterprise scale (the bigger databases find emails Hunter misses); Hunter Campaigns (their cold email tool) is functional but less mature than Lemlist or Smartlead; the workflow is best for finding specific emails, less ideal for bulk prospecting + sequences at scale. My take: for founder-led sales, indie founder outreach, and small sales teams (1-5 reps), Hunter.io is the right starting point and possibly the only sales tool you need. The combination of email finder + verifier + basic campaigns + reasonable pricing covers most early-stage GTM work. For larger sales orgs with dedicated SDR teams running 100+ outreach sequences daily, you'll eventually outgrow Hunter and move to Apollo + Lemlist or ZoomInfo. But for the first 1-2 years of any startup doing outbound sales or partnership work, Hunter is the obvious first tool.