List of Companies Using Slack
Prospecting companies using Slack? Here they are, biggest first, including UCLA Henry Samueli School of Engineering and Applied Science, Verition and Boston Public Health Commission. Open a company to see its revenue range, headcount, tech stack and the people to contact.
Company NameIndustryLocationFundingRevenueEmployees
$25M - $50M
892
$1B - $10B
892
$250M - $500M
891
$1M - $10M
891
$50M - $100M
891
$88M
$250M - $500M
891
$57M
$100M - $250M
891
$1M - $10M
891
$1M - $10M
890
$100M - $250M
890
$1B - $10B
890
$250M - $500M
890
$50M - $100M
890
$1B - $10B
890
$55M
$1B - $10B
889
$100M - $250M
889
$100M - $250M
889
$1B - $10B
888
$339M
$500M - $1B
888
$1B - $10B
888
$100M - $250M
888
$1B - $10B
887
$90M
$250M - $500M
887
$100M - $250M
886
$187M
$50M - $100M
886
$18M
$500M - $1B
886
$1.1B
$10M - $25M
885
$500M - $1B
885
$659M
$250M - $500M
885
$250M - $500M
885
$50M - $100M
885
$10M - $25M
884
$251M
$250M - $500M
884
$15M
$250M - $500M
884
$50M - $100M
884
$510M
$50M - $100M
884
$250M - $500M
884
$250M - $500M
884
$10M - $25M
884
$250M - $500M
884
$2.2B
$50M - $100M
883
$250M - $500M
883
$100M - $250M
883
$87M
$1B - $10B
882
$500M - $1B
882
$50M - $100M
882
$25M - $50M
881
$989M
$500M - $1B
881
$184M
$100M - $250M
881
$990M
$100M - $250M
881
$1.1B
$500M - $1B
880
$100M - $250M
880
$250M - $500M
880
$1B - $10B
880
$100M - $250M
880
$1B - $10B
879
$25M - $50M
879
$100M - $250M
879
$100M - $250M
879
$545M
$100M - $250M
879
$100M - $250M
878
$337M
$500M - $1B
878
$342M
$500M - $1B
878
$1B - $10B
878
$500M
$1B - $10B
878
$1.2B
$250M - $500M
877
$500M - $1B
877
$100M - $250M
876
$1B - $10B
875
$100M - $250M
875
$92M
$250M - $500M
874
$41M
$100M - $250M
874
$50M - $100M
873
$1.5M
$250M - $500M
872
$50M - $100M
872
$537M
$100M - $250M
872
$100M - $250M
872
$1.1B
$500M - $1B
871
$500M - $1B
871
$303M
$500M - $1B
870
$100M - $250M
870
$1B - $10B
869
$1B - $10B
869
$10M - $25M
869
$25M - $50M
869
$1B - $10B
869
$10M - $25M
868
$1B - $10B
868
$100M - $250M
868
$1B - $10B
868
$100M - $250M
868
$1B - $10B
867
$1.1B
$500M - $1B
867
$100M - $250M
867
$1.8M
$50M - $100M
866
$250M - $500M
865
$1M - $10M
865
$1B - $10B
864
$500M - $1B
864
$100M - $250M
863
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 UCLA Henry Samueli School of Engineering and Applied Science, Verition and Boston Public Health Commission.
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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