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Slack Technologies, Inc.

Slack is a cloud-based collaboration and messaging platform for enterprise communication and integrations.

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Who is Slack Technologies, Inc.?

Slack is a cloud-based enterprise collaboration and messaging platform used for real-time communication, workflow coordination, and integration across business systems.

  • Channel-based messaging platform for teams and cross-functional collaboration (collaboration software).
  • Integrated voice, video, and screen sharing for meetings and live communication (unified communications).
  • App and workflow integrations with Software-as-a-Service (SaaS), internal tools, and custom applications (integration platform).
  • Enterprise security, administration, and compliance features including access controls and data management (enterprise security and governance).
  • Searchable workspace for messages, files, and knowledge across channels and integrated tools (enterprise knowledge and content management).
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More About Slack

Slack provides a channel-based collaboration environment where users communicate through organized channels, direct messages, and group conversations. In enterprise environments, organizations typically structure Slack workspaces around departments, projects, business units, or cross-functional programs. This model supports asynchronous and synchronous communication, replacing or augmenting email for internal collaboration, and is used by technical, business, and operational teams.

The platform operates as a SaaS application, accessible via web, desktop, and mobile clients. Slack communication uses persistent channels that retain message history, files, and shared content. Messages support rich formatting, file attachments, and integrations with third-party and custom systems. The product provides voice and video calling (unified communications), including screen sharing, to support ad hoc conversations, standups, and remote meetings within the same interface as messaging.

Slack integrates with a wide range of enterprise applications (integration platform), including project management tools, DevOps systems, CRM platforms, IT service management tools, and document repositories. Integrations are implemented via APIs, webhooks, event subscriptions, and Slack apps or bots that post updates, respond to slash commands, or automate workflows. The platform exposes a programmable interface and workflow capabilities that allow organizations to connect internal systems, build custom bots, and trigger actions directly from channels, supporting use cases such as incident management, deployment notifications, approvals, and ticket handling.

From an architecture and governance perspective, Slack offers centralized administration for user management, authentication, and workspace configuration. Enterprises commonly integrate Slack with identity providers using Single Sign-On (SSO) protocols such as Security Assertion Markup Language (SAML) for authentication and SCIM for automated user provisioning and deprovisioning. Administrative controls cover security settings, channel management, data retention policies, and export options, with capabilities designed to align with corporate compliance and information governance requirements.

Slack includes enterprise-grade security and compliance features (enterprise security and governance), such as data encryption in transit and at rest, support for enterprise key management in eligible plans, and tools to help organizations align with regulatory and internal policies. Features such as granular permissions, audit logs, retention configuration, and eDiscovery support are used by security, legal, and compliance teams.

In the broader enterprise IT landscape, Slack sits within the collaboration, unified communications, and productivity software categories. It is often positioned alongside email, video conferencing, and document collaboration platforms and is used as a hub that consolidates alerts, updates, and workflows from multiple business systems. For directory and marketplace taxonomy, Slack aligns to collaboration software, unified communications, integration platform for SaaS and internal tools, and enterprise security and governance for communication and collaboration data.

Our description of Slack Technologies, Inc.. Updated December 2025.

Topics

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Market segments

  • Information Technology / Software & Services / IT Services / Internet Services & Infrastructure

Corporate structure

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Headquarters
San Francisco, CA
Stock ticker
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