Slack vs Atlassian
Side-by-side comparison of AI visibility scores, market position, and capabilities
Salesforce (NYSE: CRM) team messaging platform at $27.7B acquisition processing 1.5B weekly messages; competing with Microsoft Teams for enterprise collaboration through Salesforce integration and developer-first experience.
About
Slack is a San Francisco-based team collaboration and communication platform — acquired by Salesforce (NYSE: CRM) in 2021 for $27.7 billion — providing organizations with channel-based messaging, direct messaging, file sharing, video calls (Slack Huddles), and a 2,600+ app integration ecosystem that connects team communication with the business tools (Salesforce, Jira, GitHub, Google Drive) teams use daily. Used by 200,000+ organizations including IBM, Airbnb, and Target, Slack processes 1.5 billion+ messages weekly and serves as the communication backbone for technology companies, knowledge work organizations, and enterprises worldwide.
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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