Microsoft Teams says it is now used by 500,000 organizations, including 91 of the Fortune 100, and promises eight new features, three available today
Microsoft Teams, which launched worldwide in March 2017, turns two years old this week. To celebrate, Microsoft is sharing some news …
Context & Ripple Effects
Teams' second birthday caps a steady climb Microsoft has been reporting since launch: the product rolled out as a free, on-by-default feature of Office 365 in March 2017, added guest access at 125K organizations six months later, and hit 200K organizations at its one-year mark. By September 2018 it was at 329,000 organizations, and today's 500K figure — with 91 of the Fortune 100 — extends that same cadence.
The milestone matters because it frames Teams not as a Slack challenger but as a distribution play: bundling into the Office 365 seat has let Microsoft report organization counts that grow without a separate purchase decision, and a year later the company would shift its headline metric to daily engagement, claiming 44M DAUs as remote work took hold.
First-order effects
- Slack faces a rival whose claimed footprint now spans 91 of the Fortune 100, meaning the largest US enterprises are largely running Teams alongside or instead of standalone chat tools.
- Office 365 administrators get three of the eight announced features immediately, deepening the bundle's pull on existing seats at no incremental license cost.
Second-order effects
- Slack's counter-positioning shifts toward depth and openness versus Teams' breadth-by-bundle, pressuring it to justify per-seat pricing against software enterprises already pay for.
- Independent integration vendors and meeting-hardware makers gain a larger addressable base inside Teams, tilting the workplace-apps ecosystem toward building for Microsoft's platform first.
Third-order effects
- If the pattern holds, enterprise collaboration consolidates around productivity suites where chat ships by default, and vendors of point solutions must either integrate deeply with the suite or compete on capabilities the bundle lacks.
- Microsoft's own reporting shift — from organization counts to DAUs — signals that the durable battleground becomes daily engagement rather than deployment, a metric war later coverage confirms.
The trend: Enterprise chat is being absorbed into bundled productivity suites, with Microsoft's default-distribution model turning Teams' adoption curve into the benchmark Slack must answer to.