Mattermost – High Trust Messaging for the Enterprise
https://mattermost.com/

As the market for workplace messaging thrives, we see enterprises facing a huge challenge: use the popular tools that let them move fast or move more slowly, but maintain high standards for security and privacy. In response they created the only messaging platform built specifically for security-conscious DevOps and IT teams. Since our very first day in 2015, Mattermost has never waivered on its goal to transform the enterprise collaboration market by delivering the most compelling open source, high-trust messaging tools for security-conscious enterprises and developers. We’ve grown from our very first customer to thousands of companies downloading our messaging platform every month. Build intuitive workflows and collaborate across large teams without worrying about security or data privacy. Get up and running quickly with hundreds of existing integrations from Mattermost and the community, then build out custom workflows that scale to tens of thousands of concurrent users. Many of the world’s leading high-security enterprises work better with Mattermost by connecting people, tools, and automation across tens of thousands of users. This will be added to World Wide Web Reference Subject Tracer™. This will be added to Business Intelligence Resources Subject Tracer™. This will be added to Entrepreneurial Resources Subject Tracer™. This will be added to the tools section of Research Resources Subject Tracer™.