OneSignal - Customer engagement platform used by over 1 million developers and marketers; the fastest and most reliable way to send mobile and web push notifications, in-app messages, emails, and SMS.

Saysimple - Saysimple is a business communication platform that helps small businesses communicate faster and more effectively with their customers.

PushBots - Light SDK for mobile push notifications

Whelp - AI-based Omni channel customer support platform with chat bot system (On premise and cloud based)

iZooto - Engage your mobile and desktop web users with intelligent web push notifications.

Tendant - Tendant Chat is a cloud-based platform that connects your customers to your business through text, video, and live video.