Best Email Finders

RocketReach

Lookup service for professional emails and phones

RocketReach is a lookup service for professional emails and phone numbers, with a Chrome extension and an API. It also offers company data and bulk lookups.

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Apollo.io

People & company data

B2B contact and company database with outreach tools

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Clay

People & company data

Enrichment workspace that joins many data providers

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Cognism

People & company data

B2B data focused on mobile numbers and Europe

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Coresignal

People & company data

Company, employee and job data from public sources

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Crunchbase

People & company data

Database of companies, funding and investors

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Diffbot

People & company data

Knowledge graph and web extraction APIs

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