DiscoverOrg - DiscoverOrg is an IT sales intelligence platform providing technology marketers access to data, IT org charts, and real time projects.

Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.

Clearbit - Clearbit provides Business Intelligence APIs

tawk.to - tawk.to is a free live chat app that lets you monitor and chat with visitors on your website or from a free customizable page

Datanyze - The sales prospecting tool powered by technology data

JivoChat - JivoChat is a live chat that enables you to talk to visitors on your website