Slack vs Zoom
Business model, scale, and a side-by-side Litmus framework score — which model wins, and for whom.
Slack owns persistent team messaging and B2B Connect; Zoom owns video and UCaaS depth.
At a glance
| Metric | Slack | Zoom |
|---|---|---|
| Revenue | ~$2.4B (Salesforce segment, est.) | $4.87B (FY2026, ended Jan 2026) |
| Profit | Part of Salesforce (high contribution margin) | ~$1.1B (Non-GAAP) |
| Active users | ~47M+ Daily Active Users | ~4,468 customers >$100K TTM revenue |
| Employees | ~2,500 (Slack business unit) | ~7,400 |
| Founded | 2013 | 2011 |
| HQ | San Francisco, CA | San Jose, CA |
LLitmus Framework Score
Overall: Slack 91 · Zoom 88
Customer Segment
94
92
Value Proposition
95
95
Marketing Channel
92
90
Engagement
98
94
Income Source
89
87
Asset Validation
91
85
Core Operations
84
82
Strategic Alliance
90
80
Expense Validation
88
88
Slack leads 7 modules, Zoom leads 0. Overall edge: Slack.
Head to head
| Dimension | Slack | Zoom |
|---|---|---|
| Core | Channel-based messaging hub | Video + Phone + Contact Center |
| Cross-company | Slack Connect network effect | Meeting-centric |
| Ecosystem | 2,600+ apps | Zoom App Marketplace |
| Owner | Salesforce | Independent (NASDAQ: ZM) |
FAQ
Is Slack or Zoom a better business?
Slack owns persistent team messaging and B2B Connect; Zoom owns video and UCaaS depth. It depends on what you optimise for — see the module-by-module breakdown above.
What is the difference between Slack and Zoom's business model?
Slack operates in SaaS (Where work happens with AI), while Zoom is SaaS (One Platform for Human Connection). Their revenue, scale and Litmus scores are compared in detail above.
Which is more profitable, Slack or Zoom?
Slack: Part of Salesforce (high contribution margin). Zoom: ~$1.1B (Non-GAAP).