List of Companies Using Slack
Prospecting companies using Slack? Here they are, biggest first, including Fool's Theory, Freeman's Auctions and Garten. Open a company to see its revenue range, headcount, tech stack and the people to contact.
Company NameIndustryLocationFundingRevenueEmployees
$626K
$1M - $10M
183
$50M - $100M
183
$70M
$25M - $50M
183
$57M
$500M - $1B
183
$25M - $50M
183
$14M
$25M - $50M
183
$17M
$10M - $25M
183
$25M - $50M
183
$250M - $500M
183
$25M - $50M
183
$100M - $250M
183
$90M
$100M - $250M
183
$43M
$1B - $10B
183
$25M - $50M
183
$1B - $10B
183
$500M - $1B
183
$750K
$1B - $10B
183
$62M
$10M - $25M
183
$100M - $250M
183
$50M - $100M
183
$20K
$100M - $250M
183
$1M - $10M
183
$147M
$50M - $100M
183
$4M
$10M - $25M
183
$130M
$100M - $250M
183
$50M - $100M
183
$50M - $100M
183
$25M - $50M
182
$10M - $25M
182
$100M - $250M
182
$50M - $100M
182
$116M
$10M - $25M
182
$1M - $10M
182
$25M - $50M
182
$37M
$25M - $50M
182
$500K
$1M - $10M
182
$99M
$10M - $25M
182
$22M
$1B - $10B
182
$10M - $25M
182
$71M
$50M - $100M
182
$10M - $25M
182
$9.3M
$100M - $250M
182
$1M - $10M
182
$1B - $10B
182
$9M
$100M - $250M
182
$198M
$100M - $250M
182
$540M
$250M - $500M
182
$1M - $10M
182
$1.7B
$100M - $250M
182
$25M - $50M
182
$14M
$10M - $25M
182
$50M - $100M
182
$119M
$1M - $10M
182
$25M
$100M - $250M
182
$50M - $100M
182
$250M - $500M
182
$10M - $25M
182
$100M - $250M
182
$1M - $10M
182
$63M
$100M - $250M
181
$10M - $25M
181
$25M - $50M
181
$1.4B
$100M - $250M
181
$50M
$25M - $50M
181
$20M
$100M - $250M
181
$100M - $250M
181
$100M - $250M
181
$500K
$10M - $25M
181
$100M - $250M
181
$1M - $10M
181
$25M - $50M
181
$10M - $25M
181
$145M
$50M - $100M
181
$50M - $100M
181
$10M - $25M
181
$500M - $1B
181
$25M - $50M
181
$6.9M
$50M - $100M
181
$1M - $10M
181
$25M - $50M
181
$50M - $100M
181
$25M - $50M
181
$100M - $250M
181
$25M - $50M
181
$50M - $100M
181
$1B - $10B
181
$104M
$100M - $250M
181
$65M
$250M - $500M
181
$413K
$50M - $100M
181
$1M - $10M
181
$10M - $25M
181
$10M - $25M
181
$100M - $250M
181
$25M - $50M
181
$10M - $25M
181
$20M
$100M - $250M
181
$50M - $100M
180
$1.6M
$100M - $250M
180
$50M - $100M
180
$25M - $50M
180
About companies using Slack
Why target companies using Slack?
Slack is a Collaboration & productivity technology. The office suite, chat and project tools a company standardizes on decide which integrations and add-ons fit. Companies on the list include Fool's Theory, Freeman's Auctions and Garten.
Which industries use Slack the most?
Among companies using Slack on LeadIQ, the most common industries are Software Development, IT Services and IT Consulting, Financial Services, Technology, Information and Internet, Advertising Services and Higher Education. Narrow your list to the industry you sell into from there.
Where are companies using Slack located?
Companies using Slack are most often headquartered in the United States, the United Kingdom, Canada, France, Germany and Australia.
What other Collaboration & productivity technologies do companies use?
Prospecting the wider Collaboration & productivity space? Related technologies with their own company lists include Microsoft 365, Google Workspace, Microsoft SharePoint and Microsoft Teams.
How do I reach decision makers at companies using Slack?
Open a company to see its employee directory and email format, then use LeadIQ to get verified work emails and phone numbers for the people you want to reach and push them straight to your CRM or sequencer.
Insights based on LeadIQ data refreshed in September 2026.
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Top companies by employee count
Top companies in United States by employee countTop companies in United Kingdom by employee countTop companies in Canada by employee countTop companies in Germany by employee countTop companies in France by employee countTop companies in Australia by employee countTop companies in Netherlands by employee countTop companies in India by employee countTop companies in Spain by employee countTop companies in Switzerland by employee countTop companies in Sweden by employee countTop companies in Italy by employee countTop companies in Denmark by employee countTop companies in Brazil by employee countTop companies in Ireland by employee count
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