Hunter is an email-finding tool that locates and verifies professional email addresses from a domain or a list of names, helping sales, recruiting, and outreach teams connect with the people behind a business.
Its Domain Search returns the email addresses associated with a given company, along with names, roles, and the public sources where each address was found, while the Bulk Email Finder resolves many addresses at once from a list of names and companies or domains. Hunter indexes addresses discovered across the public web and scores each by a confidence rating, and it ships as a browser extension alongside a web app and an API so the same lookups can run inside a workflow or a CRM.
Hunter is commonly used in cold-outreach and go-to-market workflows, where verified contact data reduces bounce rates and improves deliverability. It occupies the same category as other prospecting and contact-enrichment tools, distinguished mainly by its domain-centric search and its large index of publicly available email addresses.