Slack

San Francisco, United States Founded: 2009 • Age: 17 yrs Acquired By Salesforce
Cloud-based team communication and collaboration platform is provided.
Annual revenue - Latest available
Total funding $1.2B 11 rounds
Employees 74 Tracked headcount
Investors 25 Known backers
Products - Services tracked
Competitors 9 Brand Intelligence

About Slack

Slack is a company based in San Francisco (United States) founded in 2009 by Eric Costello, Colin Magne, Cal Henderson, Stewart Butterfield, and Serguei Mourachov was acquired by Salesforce in December 2020. Slack has raised $1.22 billion across 11 funding rounds from investors including Atlassian, Salesforce and Kleiner Perkins. The company has 74 employees as of April 05, 2024. Slack has completed 8 acquisitions, including Astro AI, HipChat and Missions. Slack operates in a competitive market with competitors including Blink, JANDI, ChatWork, ArmorText and Flock, among others.

  • Headquarter San Francisco, United States
  • Employees 74 as on 05 Apr, 2024
  • Founders Eric Costello, Colin Magne, Cal Henderson, Stewart Butterfield, Serguei Mourachov
  • Stage Public
  • Sectors
    Technology
  • Phone
    Locked
  • Website
    Locked
  • Social
    Locked
  • Legal Name Slack Technologies India Llp
  • Date of Incorporation 28 Feb, 2019
  • Jurisdiction Pune, Maharashtra, India
Operational Areas
Technology → Enterprise Software & Productivity Solutions Unlock Sub-Sector Unlock Segment
Key Metrics
  • Annual Revenue
    Not available
  • Net Profit
    Not available
  • EBITDA
    Not available
  • Total Equity Funding
    $1.22 B (USD)

    in 11 rounds

  • Latest Funding Round
    $863 M (USD), Post-IPO

    Apr 16, 2020

  • Investors
    Atlassian

    & 24 more

  • Employee Count
    74

    as on Apr 05, 2024

  • Investments & Acquisitions
    Astro AI

    & 7 more

  • Acquired by
    Salesforce

    (Dec 01, 2020)

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People of Slack

Headcount 1000-5000
Employee Profiles 163
Board Members and Advisors 4
Employee Profiles
People
Nasreen Khan
Account Executive, Growth Business
People
Michael Weisburd
Senior Lead, Copywriter
People
Ian Spronck
Senior Account Executive - Financial Services/large Enterprise
People
Jaime Widder
Regional Vice President, Mid-market Sales

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Board Members and Advisors
people
Mike McNamara
Director
people
Andrew Braccia
Director
people
Sheila B. Jordan
Director
people
John O’Farrell
Director

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Funding Insights of Slack

Slack has successfully raised a total of $1.22B across 11 strategic funding rounds. The most recent funding activity was a Post-IPO round of $863 million completed in April 2020. This substantial capital infusion reflects strong investor confidence in the company's business model, growth potential, and market opportunities. The funding enables strategic expansion, product development, market penetration, and operational scaling to drive long-term value creation and competitive advantage.

Investors in Slack

Slack has secured backing from 25 investors, including venture fund and institutional investors. Prominent investors backing the company include Atlassian, Salesforce and Kleiner Perkins.

All
Venture Fund
Institutional
Investor Description Founded Year Domain Location
Private equity fund focused on global markets
Locked Locked Locked
Private equity investments are made in technology-enabled growth companies.
Locked Locked Locked
Growth stage tech & life sciences focused VC Firm investing in Asia and the US
Locked Locked Locked
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Investor details for Slack

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  • Investor domains
  • Investor locations
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  • Participation history

Verified entity values are shown only after access is granted.

Investments & Acquisitions by Slack

Slack has strategically engaged in corporate development activities, having acquired 8 companies. Notable acquisitions include Astro AI, HipChat and Missions.

Investments
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Investment portfolio details for Slack

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Acquisitions
Company Name Description Domain Location Founded Year Amount
Employee engagement is enhanced via a directory-based communication platform.
Locked Locked 2016 Locked
Meeting schedules are managed via an online calendar platform.
Locked Locked 2016 Locked
AI is applied to manage enterprise email inboxes and workflows.
Locked Locked 2015 Locked
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Complete acquisition details for Slack

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  • Acquired stakes
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  • Domains and locations

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Financial Statements - Slack

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Detailed financials for Slack

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Slack Comparisons

Slack Primary company
Description
Cloud-based team communication and collaboration platform is...
Location
San Francisco, United States
Founded Year
2009
Annual Revenue
Not available
Net Profit
Not available
EBITDA
Not available
Employees
74
As of 2024
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Peer comparison for Slack

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Competitors of Slack

Slack operates in a dynamic and competitive business environment, facing competition from various established players and emerging companies in the market. The competitive landscape includes prominent companies such as Blink, JANDI, ChatWork, ArmorText and Flock, among others.

Company Name Domain Founded year HQ Location Description
Locked Locked Locked
Front-line workers are empowered and protected through a cloud-based platform.
Locked Locked Locked
Enterprise team collaboration is facilitated via cloud-based messaging platform.
Locked Locked Locked
Cloud based task management platform for file sharing
Locked Locked Locked
Secure enterprise messaging with end-to-end encryption is offered across platforms.
Locked Locked Locked
Cloud-based collaboration and messaging platform for professionals is provided.
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Detailed competitors of Slack

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  • Domains and locations
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Latest news on Slack

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Complete news archive for Slack

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  • Source and publication date
  • Older coverage
  • Brand-specific news history

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Frequently Asked Questions about Slack

Slack was founded in 2009.

Slack is headquartered in San Francisco, United States. It is registered at San Francisco, California, United States.

Stewart Butterfield is the current CEO of Slack. They have also founded this company.

Slack is a funded company, having raised a total of $1.22B across 11 funding rounds to date.

As of Apr 05, 2024, the latest employee count at Slack is 74.

Provider of cloud-based team communication and collaboration platform. The platform organizes conversations into searchable channels and direct messages, supports voice and video calls, file sharing, and threaded discussions. It integrates with a broad range of third-party applications and automates workflows through bots and scripting tools. The system enables users to create workspaces for topic- or project-specific communication and provides enterprise-grade security, access controls, and administrative tools. It also incorporates AI-powered search, message summarization, and automation agents to enhance productivity and streamline team coordination.

Slack's top competitors include Blink, Flock and ChatWork.

Slack has made 8 acquisitions, including Astro AI, HipChat, and Missions.

Slack has 25 investors. Key investors include Atlassian, Salesforce, Kleiner Perkins, Accel, and T. Rowe Price.

The valuation of Slack is $7.1B as of Aug 2018.

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