One Call Now - One Call Now's message notification delivers automated phone calls, SMS text messages and emails within moments to any group.
OnPage - OnPage critical alert and incident management system enables rapid resolution of critical IT, healthcare or IoT incidents through efficient communication.
Notifuse - A 1-to-many notification API that's simple to use
Slack - A messaging app for teams who see through the Earth!
Onsolve Mir3 - MIR3 is a premier provider of Intelligent Notification and response software for business operations.
Microsoft Teams - Microsoft Teams provides the enterprise-level security, compliance and management features you expect from Office 365, including broad support for compliance standards, and eDiscovery and legal hold for channels, chats, and files.