Green Messenger - WhatsApp Messenger Web for Chrome. Text/Chat on computer. Notifications, messages, tools.
LoopMessage - LoopMessage is a perfect macOS tool for personalized mass messaging via iMessage/SMS, WhatsApp, Facebook Messenger, Telegram, Viber, and Skype.
online-live-support.com - WhatsApp API, WhatsApp notifications, WhatsApp webhook, whatsapp chatbot,
WhatsMany - Send personalised WhatsApp messages in bulk
WhatsGreen Multi Messenger - Easy access to WhatsApp, Line, Telegram, FB Messenger and many others via the Chrome toolbar.
Promote Route - A Better WhatsApp™ Experience