Slack

Slack is the world's most widely adopted business messaging platform, fundamentally transforming how teams communicate, collaborate, and coordinate work within organizations of all sizes. Founded in 2013 and acquired by Salesforce in 2021, Slack serves hundreds of thousands of organizations globally, from startups to Fortune 500 enterprises, and has become the operating layer for modern workplace communication.

Slack's channel-based messaging model organizes conversations by topic, project, or team, replacing email threads and meeting overload with persistent, searchable, and organized discussion spaces. Channels can be public for company-wide transparency, private for sensitive discussions, or shared with external partners and customers through Slack Connect, enabling secure cross-organizational collaboration within the Slack environment.

Slack's workflow automation capabilities allow teams to build no-code automated processes using Workflow Builder, triggering multi-step workflows based on Slack events, scheduled times, or external webhooks. Workflows can collect information through forms, route approvals, send notifications, and update external systems, automating repetitive coordination tasks without requiring engineering resources.

Slack integrates with more than 2,600 applications including Google Workspace, Microsoft 365, Jira, GitHub, Salesforce, Zoom, PagerDuty, and virtually every major SaaS tool, enabling teams to receive notifications, take actions, and share information across their entire technology stack from within Slack. Slack's open platform and rich API enable custom app development and deep integrations with proprietary internal systems.

Slack AI provides intelligent features including thread summaries, channel recaps for catching up on missed conversations, AI-powered search that understands natural language queries, and writing assistance for composing messages. Enterprise Grid, Slack's large organization tier, provides centralized administration, data residency controls, eDiscovery capabilities, and the ability to manage thousands of interconnected workspaces under a unified governance model.