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Slack

Workplace messaging and collaboration platform

Overview

Slack is a workplace messaging and collaboration platform for teams to communicate, share files, and coordinate work in shared channels. It combines channels, direct messages, file sharing, huddles and calls, a searchable history, Workflow Builder for no-code automation, and an app directory to connect with other business software. It operates inside Salesforce as the collaboration layer, after being acquired in 2021, providing centralized communication and cross-tool workflows. Its goal is to make organizational communication clearer and more actionable by bringing conversations, tools, and context into one place.

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About Slack

Simplify's Rating
Why Slack is rated
B
Rated B on Competitive Edge
Rated A on Growth Potential
Rated C on Differentiation

Industries

Enterprise Software

Company Size

1,001-5,000

Company Stage

IPO

Headquarters

San Francisco, CA

Founded

2009

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Simplify's take

What believers are saying

  • Adobe, Forrester, Darwinbox, Keeper, and others launched Slack integrations in 2026.
  • Slackbot crossed one million monthly active users by October 2026, up 145% quarter-over-quarter.
  • Salesforce rolled out Agentforce in Slack in 2026, expanding monetization across Sales, Service, IT.

What critics are saying

  • Slack sued Microsoft in April 2026 over Teams bundling; the case drags on.
  • Slack’s differentiation depends on Salesforce ownership, risking product subordination to CRM priorities.
  • Microsoft Teams remains the default enterprise chat standard, pressuring Slack’s pricing and retention.

What makes Slack unique

  • Slack Code launched November 8, 2026, embedding coding agents inside live team channels.
  • Slackbot now spans Slack and Salesforce Lightning, making conversation the enterprise control plane.
  • Salesforce Channels and Agentforce tie customer records directly to Slack’s searchable collaboration graph.

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Funding

Total Funding

$1.5B

Above

Industry Average

Funded Over

11 Rounds

Acquisition funding comparison data is currently unavailable. We're working to provide this information soon!
Acquisition Funding Comparison Coming Soon

Benefits

  • Time off to rest, recharge and volunteer
  • Exceptional health-care coverage
  • Holistic programs for well-being, family planning and more

Stock Price

Growth & Insights and Company News

6 month growth

-2%

1 year growth

1%

2 year growth

1%
Associated Press
Nov 4th, 2026
Forrester launches Forrester AI app for Slack, expanding its AI ecosystem

Forrester (Nasdaq: FORR) has launched its Forrester AI app for Slack at its Technology & Innovation Forum East in New York. The research and advisory firm says it is the only one in its field to support a Slack integration. Clients can add Forrester AI to a Slack channel, thread, or direct message. Once a licence holder adds it, the app uses recent conversation history to give more relevant answers that everyone in the conversation can see. Forrester AI is also available through Microsoft Teams, Microsoft 365 Copilot, and Claude. Launched in 2023, it draws on Forrester's research and analyst expertise. Licence holders can install the app from the Slack Marketplace. Other organisations can request a demo.

Business Wire
Nov 4th, 2026
Forrester launches Forrester AI app for Slack, expanding its AI reach across enterprise platforms

Forrester has launched a Forrester AI app for Slack at its Technology & Innovation Forum East in New York. The research and advisory firm says it is the only one to support a Slack integration. Clients with a Forrester licence can add the app to a Slack channel, thread, or direct message. It uses recent conversation history to give more contextual answers, which everyone in the conversation can see. Forrester AI is also available through Microsoft Teams, Microsoft 365 Copilot, and Claude. Forrester launched it in 2023. "The future of research is about meeting clients where they work," said Carrie Johnson, chief product officer at Forrester. Licence holders can install the app from the Slack Marketplace.

Business Wire
Oct 18th, 2026
Glean Debuts with Launch of an Intuitive Work Assistant That Puts Knowledge Of A Company In the Hands Of Its Workers

Glean today emerged from stealth with the debut of an intuitive work assistant to address the ubiquitous problem for knowledge workers: finding the right inf...

TechCrunch
Sep 2nd, 2026
Adobe brings Firefly, Photoshop, and 70+ tools to Slack via Slackbot integration

Adobe announced that customers can now use its applications through Slack's AI chatbot, Slackbot. Users can access apps including Firefly, Adobe Express, Photoshop, Premiere, Acrobat, InDesign, Illustrator, Stock, and Lightroom directly within Slack. More than 70 Adobe tools will also become available through the Adobe for Slack MCP app. The integration allows users to describe their desired tasks, and Slackbot calls the appropriate Adobe tool whilst considering conversation context. Users can convert information from conversations or Canvas into PDFs, images, and videos, or bring in assets from previous campaigns for editing. The integration launches for Slack Business+ and Enterprise+ teams. Adobe previously introduced similar functionality for ChatGPT last month and plans a Gemini integration soon. Competitors Canva and Figma are also making their capabilities available in chatbots.

Associated Press
Aug 26th, 2026
Darwinbox Cortex brings AI-native HCM to Slack for seamless workforce management

Darwinbox has launched its AI-native human capital management platform, Darwinbox Cortex, on the Slack Marketplace. The integration allows employees to access workforce data, submit requests, and complete approvals directly within Slack without switching applications. The platform handles leave requests, payroll queries, expenses, and policy questions through natural language processing. Managers can approve time off, expenses, and job offers within Slack channels, whilst new hires can complete onboarding tasks through conversational interactions. Founded in 2015, Darwinbox serves over 1,400 organisations and 4.5 million employees globally. The company has been recognised as a Challenger in Gartner's Magic Quadrant for HCM platforms and holds Leader status for AI capabilities in talent acquisition. Darwinbox is backed by investors including KKR, Partners Group, Microsoft, and Salesforce Ventures.

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