Companies using Slack by Slack Technologies, Inc. in 2025
As of 2025, 22,426 verified companies use Slack – across industries, company sizes, and geographies. This is real, verified data. Whether you’re looking to analyze the market, build a target list, or get a sales edge – this is your starting point.
What is Slack by Slack Technologies, Inc.?
Slack by Slack Technologies is a leading communication and collaboration platform designed to streamline workplace interactions. It facilitates real-time messaging, file sharing, and integrates with various business tools, fostering teamwork and productivity. It is mostly used by software development, information technology, and project management teams in almost all industries.
Last updated date
Number of Companies using
22,426
The majority are based in the
United States
Most common industry?
Manufacturing
Slack’s sample user list in 2025
We have data on 22,426 companies that use Slack. Our Slack customers list is available for download and comes enriched with vital company specifics, including industry classification, organizational size, geographical location, funding rounds, and revenue figures, among others.
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Slack users and customers by country
2.6K Companies
2.6K Companies
2.6K Companies
2.6K Companies
Where Slack Shows Up Most
Slack is used across a wide range of sectors:
Manufacturing
Business Services
Custom Software & IT Services
Finance
Software
From lean startups to global enterprises, Slack’s footprint is wide, and that means opportunity.

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FAQs
Contact UsHow latest this data is?
This data is updated on August 17, 2025
What is Slack?
Slack is a leading communication and collaboration platform designed to streamline workplace interactions. It facilitates real-time messaging, file sharing, and integrates with various business tools, fostering teamwork and productivity.
How many companies are using Slack in 2025?
As of 2025, our data shows that 22,426 verified companies are using Slack.
What types of companies use Slack?
Slack is used across various industries, company sizes, and geographies. It is commonly used by software development, information technology, and project management teams in almost all industries.
Where does this data come from?
This data is real and verified, offering a starting point for market analysis, target list building, and gaining a sales edge.
What information is included in the Slack customer list?
Our Slack customers list is available for download and comes enriched with vital company specifics, including industry classification, organizational size, geographical location, funding rounds, and revenue figures, among others.