List of Companies Using Slack
Prospecting companies using Slack? Here they are, biggest first, including Boston University School of Law, CMA France and Cubist Systematic Strategies. Open a company to see its revenue range, headcount, tech stack and the people to contact.
Company NameIndustryLocationFundingRevenueEmployees
$25M - $50M
567
<$1M
567
$1B - $10B
567
$500M - $1B
567
$197M
$250M - $500M
567
$163M
$250M - $500M
567
$265M
$250M - $500M
567
$55M
$250M - $500M
567
$900M
$50M - $100M
566
$25M - $50M
566
$500M - $1B
566
$517M
$50M - $100M
566
$500M - $1B
566
$508M
$500M - $1B
566
$271M
$100M - $250M
565
$16M
$1B - $10B
565
$250M - $500M
565
$1.3B
$500M - $1B
565
$100M - $250M
565
$352M
$500M - $1B
565
$1B - $10B
565
$1B - $10B
564
$1M - $10M
564
$25M - $50M
564
$500M - $1B
564
$58M
$250M - $500M
564
$198M
$250M - $500M
563
$10M - $25M
563
$26M
$500M - $1B
563
$127M
$250M - $500M
563
$100M - $250M
563
$308M
$100M - $250M
563
$500M - $1B
562
$1B - $10B
562
$250M - $500M
562
$102M
$250M - $500M
562
$180M
$100M - $250M
561
$11M
$50M - $100M
561
$10M - $25M
560
$46M
$50M - $100M
560
$204M
$1B - $10B
560
$25M - $50M
560
$250M - $500M
560
$25M - $50M
560
$25M - $50M
560
$457M
$250M - $500M
560
$6.3M
$250M - $500M
560
$250M - $500M
559
$216M
$250M - $500M
559
$71M
$100M - $250M
559
$25M - $50M
559
$250M - $500M
559
$500M - $1B
559
$95M
$100M - $250M
559
$100M - $250M
559
$160M
$50M - $100M
559
$105M
$250M - $500M
559
$518M
$1B - $10B
558
$100M - $250M
558
$100M - $250M
558
$500M - $1B
558
$938K
$1B - $10B
558
$100M - $250M
558
$100M - $250M
558
$49M
$250M - $500M
558
$1B - $10B
558
$25M - $50M
558
$50M - $100M
558
$100M - $250M
557
$10M - $25M
557
$551M
$50M - $100M
557
$25M - $50M
557
$43M
$50M - $100M
557
$40M
$50M - $100M
557
$1B - $10B
557
$32M
$500M - $1B
557
$25M - $50M
557
$496M
$250M - $500M
556
$134M
$500M - $1B
556
$194M
$100M - $250M
556
$10M - $25M
556
$500M - $1B
556
$155M
$100M - $250M
556
$264M
$250M - $500M
556
$50M - $100M
556
$250M - $500M
555
$1M - $10M
555
$250M - $500M
555
$102M
$100M - $250M
555
$100M - $250M
554
$100M - $250M
554
$100M
$1B - $10B
554
$250M - $500M
554
$50M - $100M
554
$500M - $1B
553
$250M - $500M
553
$746M
$1B - $10B
553
$50M - $100M
553
$463M
$250M - $500M
553
$25M - $50M
553
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 Boston University School of Law, CMA France and Cubist Systematic Strategies.
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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