MicrosoftMicrosoft — Teams

Microsoft Teams bundles persistent chat, channels, video meetings, calling, and file collaboration into a single client, and it operates as the collaboration surface of Microsoft 365 rather than as a standalone point product. Microsoft sells it through Microsoft 365 subscriptions and through standalone Teams plans that range from a free tier to paid Essentials, Enterprise, Premium, Phone, and Rooms offers.

The service competes with Slack, Google Chat, Zoom, and cloud communications vendors, and it carries the security, compliance, and administrative controls of the Microsoft cloud estate. Its distribution through Microsoft 365 agreements gives it reach across large enterprises, while regulators and rivals have challenged the practice of bundling it with productivity suites.