Mattermost vs Atlassian
Side-by-side comparison of AI visibility scores, market position, and capabilities
Open-source team messaging platform for air-gapped and self-hosted enterprise deployments; trusted by defense, intelligence, and regulated industries.
About
Mattermost is an open-source, self-hostable team messaging and collaboration platform built for security-conscious enterprises, government agencies, and development teams that cannot or will not use cloud-only solutions like Slack or Microsoft Teams. Founded in 2015 and headquartered in Palo Alto, Mattermost provides a Slack-like interface with channels, threads, file sharing, and integrations — but deployed entirely within an organization's own infrastructure or private cloud.
NASDAQ: TEAM enterprise collaboration platform at $5.215B FY2025 revenue with 300K+ customers; Jira, Confluence, and Atlassian Intelligence AI competing with Microsoft and ServiceNow for developer and enterprise team workflows.
About
Atlassian Corporation is a Sydney, Australia-founded, San Francisco-headquartered enterprise collaboration software company — listed on NASDAQ (NASDAQ: TEAM) — providing software development teams and enterprises globally with Jira (agile project tracking and issue management), Confluence (team documentation and knowledge base), Jira Service Management (IT service management), Bitbucket (code collaboration and CI/CD), Trello (visual kanban boards), and Atlassian Intelligence (AI features across the platform), generating $5.215 billion in revenue in fiscal year 2025 (+19.66% year-over-year) with 300,000+ customers including 45,842 cloud customers with over $10,000 in annual cloud ARR. Founded in 2002 by Mike Cannon-Brookes and Scott Farquhar with no outside venture funding and $10,000 on a credit card, Atlassian pioneered the developer-centric, low-touch SaaS sales model that many B2B companies have since replicated.
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