EmailSearch.io is a simple tool that allows users to search for email addresses based on domain, LinkedIn profile, or company.
They have have a CSV upload and API solution for bulk email searches. Upload your document and have it enriched with contact data in no time!
Hunter helps you find and verify professional email addresses from domains, companies or a specific professional on the web.
Wr like how Hunter's email extension not only searches the email address of the prospect but also displays the email format of the organization.