Slack

Slack

Enterprise team messaging and file sharing

Overview

Slack provides a collaboration platform for teams to communicate and work together more efficiently. It combines messaging, file sharing, and deep integrations with many third-party apps, enabling seamless workflows. Users interact through channels and direct messages, while developers can build custom integrations via APIs and add apps through the App Directory. No-code automation is supported with Workflow Builder. The product is delivered on a subscription basis with multiple pricing tiers and a free tier, and security features help protect organizational data. Slack differentiates itself through a large ecosystem of integrations, a user-friendly interface, and enterprise-grade security to support teams of all sizes. The goal is to help organizations improve internal communication and productivity by making it easy to coordinate work across tools and people.

About Slack

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

Industries

Enterprise Software

Cybersecurity

Company Size

1,001-5,000

Company Stage

IPO

Headquarters

San Francisco, California

Founded

2009

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Simplify's Take

What believers are saying

  • Adobe launched Slackbot integration August 2026, bringing Firefly, Photoshop, and 70 tools.
  • Darwinbox Cortex and ezCater integrations show Slack gaining HR and workplace workflows.
  • Slack's August 2026 AI push positions it as Salesforce's enterprise collaboration front door.

What critics are saying

  • Microsoft Teams still dwarfs Slack, with 360 million MAUs versus 79 million.
  • Slack suffered a global May 27, 2026 outage, exposing infrastructure fragility.
  • Salesforce cut roughly 1,160 jobs in 2026, signaling Slack's dependence on parent priorities.

What makes Slack unique

  • Slack Code launched August 25, 2026, uniting AI agents inside team channels.
  • Agentforce in Slack, updated August 25, 2026, binds CRM data to conversations.
  • Slack Marketplace connects over 500 AI applications, deepening workflow lock-in.

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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

Headcount

6 month growth

-3%

1 year growth

0%

2 year growth

0%
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.

The Register
Aug 20th, 2026
Slack Code brings AI coding agents into team channels with live preview features

Slack has launched Slack Code, a feature that brings AI coding agents into shared project channels where teams can monitor their work in real time. The Salesforce-owned platform allows users to tag an agent from a conversation, creating a dedicated code channel where colleagues can review proposed changes, view previews, and redirect the agent as needed. The feature aims to make AI-assisted coding more collaborative by moving the process from developers' terminals into Slack's group environment. Product managers, designers, and non-engineering staff can participate without specialist tools. Anthropic, Cognition, GitHub, OpenAI, and Vercel are developing integrations for the platform. Claude, Devin, Copilot, and ChatGPT are among the agents that will work within Slack Code channels. Slack maintains that humans retain control, with team members able to pause or redirect agents and approve high-stakes actions like production deployments. The company says the feature is available now, though details about plan access and launch scope remain unclear.

Business Wire
Feb 3rd, 2026
ezCater integrates with Slack to streamline workplace meal ordering and boost productivity

ezCater, the leading US workplace food tech platform, has launched a Slack integration to streamline employee meal programmes. The integration embeds ezCater's Relish service directly into Slack, enabling workers to view menus, order meals and receive delivery updates without switching applications. The integration features automated reminders, one-click reordering, real-time delivery notifications and in-app meal ratings. According to ezCater's 2025 Lunch Report, workers skip lunch at least once weekly, though 88% acknowledge hunger impairs performance. AppFolio reported a 14% increase in lunch participation after implementing the integration. ezCater brings individually packaged meals from local restaurants to workplaces, with organisations setting subsidies and schedules whilst employees select their own meals. The integration is available today.

Yahoo Finance
Jan 27th, 2026
Salesforce positions Slack as AI collaboration hub after $28B acquisition

Slack has become increasingly central to Salesforce's platform since its $28 billion acquisition in July 2021, defying expectations that it would fade into obscurity. The collaboration tool is now positioned as the front end for Salesforce's AI ecosystem and the default collaboration interface for the platform. Slack's integration is exemplified by Agentforce, which enables users to build task-specific AI agents operating directly within Slack whilst accessing company data stored in Salesforce. A comprehensive update introduced Salesforce Channels, which connect directly with Salesforce records and are accessible from either platform without losing context. Whilst Slack has gained prominence within Salesforce's ecosystem, it still trails competitors like Cisco, Microsoft and Zoom in the broader team collaboration market. However, its role as a central interface to Salesforce makes it increasingly significant.

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