Sidekick by Hubspot - Customer insight integrated with your email tools.
Mailshake - Mailshake lets you build your professional network through a smart and intuitive approach to cold emailing.
Sansan - Sansan provides a internal contact sharing service for companies.
Instantly - Build your own infinitely scalable cold email outreach system with Instantly.
HiHello - Exchange contacts, seamlessly.
Snov.io - More leads. More sales. More revenue.