Whappext - Whappext is an online marketing platform that helps users to send bulk messages to millions of users for the marketing of their brands.
Video SDK from Zoom - Build fully customizable video-based apps
WAAM-it Sender - WAAM-it Sender is a WhatsApp marketing software that enables users to send messages from their system and smartphones anytime, anywhere.
Amazon Chime - Online meetings and video conferencing
Kaleyra - Kaleyra is a platform that helps developers to build SMS and voice messaging applications for a global scale.
AuthKey.io - SMS API and WhatsApp Business API