The collaboration platform replacing email and scattered communication tools for 750,000+ organizations worldwide.
Est. MRR
$280M+
+23% YoY
Slack pioneered the modern workplace chat platform, fundamentally changing how teams communicate. Its integrated channels, direct messaging, and workflow automation have made it the standard communication layer for distributed teams. Slack's app ecosystem (400,000+ apps) and deep integrations with development tools (GitHub, Jira, AWS) make it the central nervous system of many organizations. Since being acquired by Salesforce in 2021, Slack has remained independent and continues growing with new AI features, Canvas for asynchronous collaboration, and deeper enterprise security features. Slack's freemium model with strong land-and-expand metrics drives high NRR.
📌 MRR.ai Key Insight
750K+ organizations — the highest customer density in the top 15, driven by freemium PLG and team-based expansion
Monthly (MRR)
$280M+
Annual (ARR)
$3.36B+
Growth Rate
+23% YoY
Team Collaboration
Enterprise Chat & Workflows
Ticker: WORK
MRR.ai's revenue estimates for Slack are derived from a combination of publicly available data sources:
* All figures are estimates. MRR.ai does not have access to Slack's internal billing data. These numbers are provided for benchmarking and research purposes only. Actual figures may differ materially.
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