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Slack

Founded: 2013

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Slack

Slack is a cloud-based team communication platform developed by Slack Technologies, which has been owned by Salesforce since 2021. Launched in 2013, Slack provides a channel-based messaging system that allows users to exchange instant messages, share files, and collaborate in real-time. Its integration capabilities with over 2,500 apps and services make it a versatile tool for businesses aiming to streamline their workflows. In 2024, Slack introduced Slack AI, incorporating artificial intelligence features to enhance user interactions and productivity. With a user base that includes 77 of the Fortune 100 companies and over 200,000 paid customers, Slack has established itself as a leading platform in the online services industry.

Email: feedback@slack.com Website: https://slack.com/
Highlights

Slack offers a channel-based platform that facilitates communication, collaboration, and productivity among teams.

In 2021, Slack was acquired by Salesforce for nearly $28 billion, marking one of the largest tech acquisitions.

As of 2025, Slack has over 200,000 paid customers and is used by 77 of the Fortune 100 companies.

Slack integrates with over 2,500 apps and services, enhancing its functionality and user experience.

In 2024, Slack launched Slack AI, introducing artificial intelligence features to improve user interactions and productivity.