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.

Significant Headcount Growth

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

Simplify Jobs

Simplify's Take

What believers are saying

  • ezCater integration boosts lunch participation 14% via AppFolio.
  • Agentforce positions Slack as Salesforce AI ecosystem frontend.
  • Slack Channels enable bidirectional record access without context loss.

What critics are saying

  • Microsoft Teams bundling erodes mid-market share within 6-12 months.
  • Salesforce AI pivot commoditizes Slack in 12-18 months.
  • Freemium model fails conversions as Teams captures free users.

What makes Slack unique

  • Slack Fund invests $500K-$10M in early-to-late stage productivity tools.
  • Targets collaboration, mental health, fintech across North America, Europe.
  • Portfolio includes Loom, Hightouch; $100M Fund III under Salesforce Ventures.

Help us improve and share your feedback! Did you find this helpful?

Funding

Total Funding

$29.5B

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

6%

1 year growth

2%

2 year growth

6%
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.

PR Newswire
Jan 26th, 2026
Keeper Security launches Slack integration for zero-trust privileged access management

Keeper Security has launched a Slack integration extending privileged access management controls into the collaboration platform. The integration allows organisations to request and approve access to Keeper Vault resources, including shared folders, service accounts and credentials, directly within Slack whilst maintaining Keeper's zero-knowledge architecture. The system separates workflow from security enforcement: Slack handles requests and approvals, whilst Keeper maintains access policies and cryptographic controls. The Slack app and Keeper Commander containers are customer-hosted, ensuring full control over data encryption. Access is granted on a just-in-time basis with no standing privileges, and all events are centrally logged for audit purposes. The integration aims to eliminate insecure communication channels like email threads whilst preserving least-privilege access policies across cloud, hybrid and on-premises environments.

Standard Metrics
Aug 19th, 2024
Announcing our $23.7M Series A at Standard Metrics

We have raised a $23.7M Series A to scale our financial collaboration platform for the private markets. We are hiring!

StartupAround
Nov 30th, 2023
A 3-time CFO just raised $1.5 million for her first startup. Here's how she structured the HR perk-management company to outlast a protracted economic downturn.

Amy Spurling wasn't planning to raise funding during a pandemic. On Thursday, Compt announced $1.5 million in seed funding from Harlem Capital Partners, Impellent Ventures, and the workplace chat app Slack. Part of the pitch that won over investors, Spurling said, was her experience on the buy side of so many HR benefits and perks vendors over the years. Any of Compt's 35 existing customers can allot budgets for each employee in a given benefits category — say, family wellness. "It won't be a typical recession," Spurling said of the changes coming to the global economy.

Recently Posted Jobs

Sign up to get curated job recommendations

Slack is Hiring for 16 Jobs on Simplify!

Find jobs on Simplify and start your career today

Don't see your dream role? Check out thousands of other roles on Simplify. Browse all jobs →