Mattermost is a software company based in the United States, founded in 2015, that specializes in secure collaboration platforms built on open source technology. The company primarily serves mission-critical operations within the Department of Defense (DoD), offering solutions that enhance operational efficiency and decision-making in both software development and military operations. Mattermost's platform is designed to function across various environments, including on-premises, hybrid, and cloud settings, providing capabilities such as secure Command and Control (C2) operations, real-time communication, and enhanced situational awareness. The platform supports instantaneous information sharing and cross-branch coordination, which is essential for joint military operations. Additionally, Mattermost integrates with a variety of developer tools to streamline workflows throughout the software development lifecycle. The company's focus on data sovereignty and advanced decision-making support, including AI-powered analytics, positions it as a key player in the business intelligence software sector, particularly for defense-related applications.