An email finder for domains you have versus discovery plus enrichment in one call.
What Hunter.io is
Hunter.io is an email-finding tool. Its Domain Search returns the email addresses associated with a given domain, with sources and metadata, and its Email Finder returns the most likely address for a named person at a domain, with a confidence score. It works from public data and pattern recognition, returns JSON, and is a popular way to turn a company you already know into reachable contacts.
Hunter's starting point is a domain or a person at a company you already have. It is strongest when you have a list of target companies and need verified email addresses and roles to reach them. It does not discover businesses for you from a search; it answers 'what are the emails at this domain' rather than 'which businesses match this city and keyword.'
Head to head
| Dimension | Hunter.io | biz collect |
|---|---|---|
| Primary model | Email finder: domain search and named-person lookup | API-first discovery plus enrichment: POST search, poll job, get JSON |
| Starting point | A domain or company you already have | A city plus keywords; biz collect discovers the businesses |
| Email/website enrichment | Finds emails for a domain; pattern and source based | Scrapes emails and socials from each discovered business site, deduped |
| Output format | Emails plus metadata for the domain you query | Full business records in one stable JSON schema, OpenAPI 3.1 |
| Setup effort | Supply domains or names; you source the company list first | One job covers city + keywords + radius; two endpoints |
| Best for | Finding emails for companies and people you already know | Discovering local businesses and their contacts from a search |
| Pricing model | Plan plus request/credit usage; check current pricing | Free tier, then credit-based plans from $19/mo (annual) |
Which fits the job
These tools often coexist. The best stack is usually the simplest reliable tool at each layer - not one tool forced to do every job.
biz collect vs Hunter.io
They solve adjacent problems. Hunter finds emails for domains or people you already have. biz collect discovers local businesses from a city-plus-keyword search and extracts their emails and socials in the same call. If you still need to find the businesses, biz collect fits; if you already have the companies and only need emails, Hunter does.
biz collect extracts emails from each discovered business's own website, alongside social profiles and outgoing links, and dedupes them. It does not do named-person email guessing with confidence scores the way Hunter's Email Finder does; it focuses on business-level contact data found from a search.
No. That is the core difference. You give biz collect a city, keywords, and radius, and it discovers the matching businesses for you, then enriches each from its website. Hunter expects you to supply the domain or company first.
biz collect, when the task is finding local businesses and their contacts: a small, stable API surface and OpenAPI 3.1 spec let an agent fill location and keywords and parse predictable JSON. Hunter is a great agent tool when the agent already has a domain and needs its emails.
Yes. A common pattern is to discover and enrich businesses with biz collect, then use Hunter to find named-person emails at the most promising domains for personalized outreach.
Yes. It includes 200 signup credits plus 20 daily login credits with no credit card, and polling is free, so you can test real searches before upgrading.
Still have questions? Talk to us.
Sign up free with 200 signup credits, no credit card. POST a city and keywords, poll the job, and see the structured JSON for yourself.
