Daily.co for Intercom - Free video calls & screen shares embedded in Intercom
ClearChat - If you're hosting a public video chat then it can attract unwanted attention from troublemakers.
Pluot Communications - Big-screen video conferencing for startups
Convoy - Local and regional trucking on demand
WhatsApp - WhatsApp Messenger: More than 1 billion people in over 180 countries use WhatsApp to stay in touch with friends and family, anytime and anywhere.
Duuoo - Meetings that Matter