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Who owns Slack?

Slack is a workplace messaging service owned by Salesforce, Inc., an American company listed on the New York Stock Exchange. Salesforce completed the acquisition on 21 July 2021, and the operating entity is now Slack Technologies, LLC. Users outside the United States and Canada contract with Slack Technologies Limited in Dublin.

United States connection

Direct

Origin
United States
Sourced connections
2
High confidenceLast checked Oct 2026

Key facts

Service
Slack
Origin
United States
Owner
Salesforce
Manufacturing
N/A

Why Whownit classifies Slack this way

  • Origin

  • Owned by Salesforce

Sources: company filings, company websiteAll sources

Ownership snapshot

  1. Slack

  2. owned by

    Salesforce

    Salesforce, Inc.

  3. owned by

    Public shareholders

Owned by Salesforce

Since July 2021, Slack has been owned by Salesforce, Inc. Salesforce is publicly traded.

Country connections

Each relationship is recorded separately, with its own sources.

Looking for alternatives?

Comparable alternatives based on ownership and origin.

No verified alternatives have been added yet.

Sources

Primary sources are listed first. Facts on this page were last checked in Oct 2026.

  1. sec.gov

    Salesforce, Inc. Form 8-K, completion of the Slack acquisition (opens in a new tab)
    SEC filingAccessed Oct 1, 2026

  2. sec.gov

    Slack Technologies, Inc. Form S-1 (opens in a new tab)
    SEC filingAccessed Oct 1, 2026

  3. slack.com

    Slack user terms of service (opens in a new tab)
    CompanyAccessed Oct 1, 2026

Quick answers

Who owns Slack?

Since July 2021, Slack has been owned by Salesforce, Inc. Salesforce is publicly traded.

Which country owns Slack?

Slack is owned by Salesforce, which is headquartered in the United States.

Where is Slack from?

Incorporated in Delaware in 2009 as Tiny Spec, Inc., renamed Slack Technologies, Inc. in 2014, when the product launched publicly.

Is Slack an American service?

Whownit records 2 sourced connections between Slack and the United States (Origin, Ownership). At least one is direct — through the company itself.