Slack
Slack is a cloud-based team collaboration platform serving roughly 1 million businesses with channels, messaging, AI-powered Slackbot, and 2,600+ app integrations. As a Salesforce subsidiary, it provides the conversational interface for AI agents across enterprise, mid-market, and SMB segments.
- Company typePrivate
- Founded2013
- HeadquartersSan Francisco, United States
- Headcount1,001–5,000
- GTM typeB2B
- OfferingSoftware
What Slack does
Slack is a cloud-based team collaboration platform serving approximately 1 million businesses worldwide, operating as a wholly-owned subsidiary of Salesforce since the $27.7 billion acquisition in 2021. The platform provides organized communication through channels, direct messaging, audio/video huddles with AI transcription, recorded clips, collaborative canvases, project lists, and a no-code Workflow Builder. Slack has repositioned itself as an AI-powered operating system for work, with Slackbot serving as the central conversational agent powered primarily by Anthropic's Claude and supplemented by OpenAI's ChatGPT integration. The platform's proprietary Model Context Protocol (MCP) server and Real-Time Search API enable third-party AI agents from OpenAI, Anthropic, Google, Perplexity, Writer, Dropbox, and Notion to securely access conversational data, while Slackbot's MCP client orchestrates natural language workflows across 20+ enterprise applications including Atlassian, Box, Canva, DocuSign, Miro, and Zoom.
The business operates a tiered per-seat subscription model: Free (basic features, 90-day message history, 10-app limit), Pro at $7.25/user/month, Business+ at $15/user/month, and custom-priced Enterprise Grid. Salesforce bundles Slack free with every new Enterprise and Unlimited Edition Salesforce org, creating a powerful distribution channel into the CRM install base. Revenue is supplemented by consumption-based Agentforce pricing at approximately $2 per AI conversation. Salesforce CEO Marc Benioff stated Slack revenue is expected to reach $3 billion in 2026, representing 2.5x growth since the acquisition. Go-to-market combines enterprise field sales, self-serve freemium onboarding, and the Slack Marketplace, which hosts 2,600+ app integrations. Slack serves enterprise, mid-market, and SMB customers across industries including technology, financial services, media, retail, manufacturing, and automotive, with named users including OpenAI, Anthropic, IBM, GM, Paramount, Stripe, Target, and Rivian.
Engineering and product operations span San Francisco (HQ and primary engineering), Seattle (AI/ML hub), Atlanta (desktop client and security), the Washington DC metro area (cloud infrastructure), and Dublin (EMEA headquarters), with hiring signals concentrated in AI platform, LLM fine-tuning, and machine learning infrastructure roles.
Slack firmographics
Firmographics- Name
- Slack
- Legal name
- Slack Technologies, LLC
- Website
- https://slack.com
- Company type
- Private
- Founded year
- 2013
- Operating status
- Operating
- Headcount range
- 1,001–5,000 employees
- Short description
- Slack is a cloud-based team collaboration platform serving roughly 1 million businesses with channels, messaging, AI-powered Slackbot, and 2,600+ app integrations. As a Salesforce subsidiary, it provides the conversational interface for AI agents across enterprise, mid-market, and SMB segments.
- Ownership category
- akta.pro rank
Slack industry classification
Industry- Product category
- Team Collaboration and Messaging Software
- NAICS
- Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (51821), Computer Systems Design and Related Services (54151)
- SIC
- Services-Prepackaged Software (7372)
- akta.pro primary industry
- Team Messaging & Chat (BPAMAMAA)
- akta.pro secondary industries
- Enterprise/Team Messaging (BPAMACAB), Business Messaging & Team Collaboration (HDAIAHAE), Workplace Automation & Self-Service (RPA for IT, Chatbots, Virtual Agents) (BPAEAIAI)
Keywords
Where Slack is headquartered
LocationHeadquarters
- HQ city
- San Francisco
- HQ country
- United States
- HQ region
- North America
Offices6 records
Markets served
Slack business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Personnel, Technology or R&D, Infrastructure, Marketing or Sales, Operations
Revenue model
- Subscription Revenue (Per-Seat): Tiered subscription model based on seat count. Slack generates revenue from Pro ($7.25/user/month), Business+ ($15/user/month), and Enterprise plans. Salesforce CEO Marc Benioff announced Slack's revenue expected to reach $3 billion in the current year. Slack has grown 2.5X in revenue since Salesforce acquired it five years ago for $27 billion.
- AI/Agentic Add-on Consumption: Agentforce platform operates on consumption-based pricing at approximately $2 per AI conversation. Slack's Model Context Protocol surpassed one million active users within six weeks. Agentforce ARR reached $1.2 billion, growing 205% year over year.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Freemium | Monthly | Free tier with basic messaging features |
| Subscription | Annual | Pro - Enhanced collaboration for growing teams |
| Subscription | Annual | Business+ - Advanced security and administration |
| Subscription | Multi-year contract | Enterprise Grid - For large organizations |
Go-to-market motion3 records
Distribution channels4 records
Marketing channels6 records
Slack product offering
Product offeringCore offering
Slack is a cloud-based team collaboration platform that provides organized real-time communication through channels, direct messaging, huddles, and clips, with integrations to 2,600+ enterprise applications. It is sold primarily through per-seat subscriptions (Free, Pro, Business+, Enterprise Grid) and increasingly functions as an AI-powered operating system for work via Slackbot (powered by Anthropic Claude), the Model Context Protocol (MCP) server, and the Real-Time Search API that allow AI agents and humans to collaborate across connected enterprise tools.
Product overview
Slack is a cloud-based team collaboration platform, now part of Salesforce, offering a unified workspace where people, data, apps, agents, and AI come together. The core platform includes Channels for organized team communication, Slack Connect for external collaboration, Huddles for audio/video meetings, Clips for recorded updates, Canvas for rich documents, Lists for project tracking, and Workflow Builder for automation. Slackbot serves as the AI-powered personal agent and primary interface for AI capabilities, powered by integrations with Anthropic Claude and OpenAI ChatGPT. The platform integrates natively with Salesforce CRM, enabling deal updates, customer record access, and sales workflow management directly within Slack. Slack's Agentic Platform enables customization and extension through its MCP client, supporting over 20 partner applications including Atlassian, Box, Canva, DocuSign, Miro, Notion, and Zoom. Additional products include Slack Atlas for organizational profiles, Enterprise Key Management for security, and Slack Marketplace for discovering agents and apps. The platform serves teams across industries including engineering, IT, customer service, sales, marketing, HR, and security, with Slack now bundled free with every new Salesforce Enterprise and Unlimited Edition organization.
Differentiator
Problem solved
Functional benefit
Brands
- Slackbot: AI-powered personal agent for work that coordinates tasks, provides answers, and helps with productivity across the Slack platform
- Slack CRM
- Slack Connect
- Agentforce
- Slack Atlas
- Slack AI
Quantifiable outcome
- Teams save 97 minutes per week with AI in Slack integrations
- +7 more outcomes
Companies that use Slack
Customer profileNamed customers9 records
Segments8 records
Ideal customer profiles4 records
Slack technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- Yes
- API docs
- API detail
Core technology
AI maturity
App detail
Integration16 records
AI capability11 records
Feature6 records
Slack partnerships and signals
Strategic signalPartnerships
Ten partnerships are on record, tiered core, secondary and flagship.
- AnthropiccoreAnthropic launched Claude Tag into Slack, allowing users to tag the AI assistant (@Claude) directly in conversations where it reads discussion context and responds with relevant information. The feature enables multiple team members to interact with the same shared AI instance. Anthropic reports 65% of its own product team's code is now generated using an internal version of Claude Tag. The integration is currently available in research preview for Slack Enterprise and Team customers.
- DocuSigncoreDocuSign launched an app integrating its Intelligent Agreement Management platform into Slackbot, powered by DocuSign's Iris AI engine and connected via Model Context Protocol. The app allows users to query contract details, automate workflows, initiate approvals and signatures, and generate agreements using Salesforce CRM data directly within Slack conversations. Available globally in the Slack Marketplace in English.
- HiBobsecondaryHiBob announced an integration bringing its Bob HCM platform's people data and HR actions directly into the Slack communications environment through a Slackbot interface using MCP protocol. Enables employees, managers, and HR teams to access workforce information, complete tasks, and make decisions in natural language without leaving Slack. Positions as addressing the missing context layer for enterprise AI around organizational structure and team dynamics.
- AdobesecondaryAdobe announced expansion of its creative AI agent across Creative Cloud applications including integration with Slack. The company is extending its creative tools to third-party AI platforms including Slack, significantly expanding reach to hundreds of millions of users. Adobe positions this as preventing vendor lock-in while driving users back to Creative Cloud suite.
- CiscosecondaryCisco unveiled Cisco Cloud Control, a unified platform for managing AI infrastructure, integrating with major ecosystems including Slack. Cisco Cloud Control is designed for an agentic AI era where humans and AI agents operate from shared telemetry and action systems. Global rollout planned with controlled availability in the United States.
- VercelsecondaryVercel integration via an 'Add to Slack' button, part of Slack's new developer toolkit. Vercel CEO Guillermo Rauch stated: 'Work starts in conversation. That's why we see Slack as the natural place to build our agents.'
- OpenAIcoreOpenAI has built an AI app using Slack's Real-Time Search API and MCP server. Over 50 industry-leading partners including OpenAI and Anthropic have built AI apps and agents using these tools. OpenAI's ChatGPT Enterprise integration enables users to summon the AI assistant in Slack channels for various tasks.
- GooglecoreGoogle has built AI apps using Slack's Real-Time Search API and MCP server. Over 50 partners leverage these tools for AI integration with Slack.
- Atlassian, Box, Canva, Miro, ZoomcoreSlackbot's MCP client allows users to access and control over 20 partner applications including Atlassian, Box, Canva, DocuSign, Miro, Notion, and Zoom directly from within Slack's conversational interface. The MCP client is designed to solve the chronic problem of fragmented software stacks and isolated AI tools by enabling natural language-driven workflows.
- SalesforceflagshipSalesforce acquired Slack in 2021 for $27.7 billion. Slack is now positioned as the default AI-powered work platform for all Salesforce customers. Integration includes Slackbot with Salesforce CRM data, Agentforce AI platform, and automatic Slack workspace generation for new Salesforce orgs. Slack has grown 2.5X in revenue since acquisition.
Scale indicators8 records
Recent moves6 records
Expansion highlights6 records
Slack competitors and assessment
Company assessmentMarket position
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Slack social profiles
Digital presenceSlack compliance and trust
Trust signalCompliance6 records
Slack financial estimates
Financial estimateRevenue estimate
Valuation estimate
Slack leadership team
Management profileNumber of profiles
Profiles10 records
Slack funding detail
Funding detailFunding overview
Funding rounds13 records
Investors35 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Slack M&A and investment
M&A and investmentM&A8 records
Investments25 records
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Slack
What does Slack do?
Slack is a cloud-based team collaboration platform that provides organized real-time communication through channels, direct messaging, huddles, and clips, with integrations to 2,600+ enterprise applications. It is sold primarily through per-seat subscriptions (Free, Pro, Business+, Enterprise Grid) and increasingly functions as an AI-powered operating system for work via Slackbot (powered by Anthropic Claude), the Model Context Protocol (MCP) server, and the Real-Time Search API that allow AI agents and humans to collaborate across connected enterprise tools.
Is Slack a public or private company?
Slack is a private company. It is classified as corporate owned and is currently operating.
When was Slack founded?
Slack was founded in 2013. It employs 1,001 to 5,000 people.
Where is Slack based?
Slack is headquartered in San Francisco, United States, in the North America region.
How does Slack make money?
Two revenue lines are on record. Subscription Revenue (Per-Seat) is the primary driver. The others are AI/Agentic Add-on Consumption.
Does Slack have an API?
Yes. Slack provides a comprehensive public API enabling developers to build applications, automate workflows, and integrate with the Slack platform. The API supports REST-based communication, webhooks for event-driven architectures, and real-time messaging via WebSocket. Developers can access workspace data, channels, messages, files, and user information. Slack also offers an MCP (Model Context Protocol) server that gives AI agents secure, context-aware access to conversational data within Slack, with over 50 industry-leading partners including Google and OpenAI leveraging these tools. Developer documentation is at api.slack.com.
What industry is Slack in?
Slack's product category is Team Collaboration and Messaging Software. Its primary akta.pro industry code is BPAMAMAA, Team Messaging & Chat, with a secondary code of BPAMACAB, Enterprise/Team Messaging. Its NAICS code is 51821 and its SIC code is 7372.