List of Companies Using Slack
Prospecting companies using Slack? Here they are, biggest first, including Hiwell, Sesame Workshop and Equisoft. Open a company to see its revenue range, headcount, tech stack and the people to contact.
Company NameIndustryLocationFundingRevenueEmployees
$5.1M
$500M - $1B
910
$106M
$500M - $1B
910
$138M
$250M - $500M
909
$37M
$100M - $250M
909
$1B - $10B
909
$1B - $10B
908
$1B
$50M - $100M
907
$25M - $50M
907
$500M - $1B
906
$1B - $10B
906
$167M
$25M - $50M
906
$100M - $250M
906
$1B - $10B
906
$1M - $10M
905
$29M
$100M - $250M
905
$30M
$250M - $500M
904
$25M - $50M
904
$50M - $100M
903
$5M
$50M - $100M
903
$50M - $100M
903
$460M
$250M - $500M
903
$500M - $1B
903
$124M
$500M - $1B
903
$1B - $10B
903
$184M
$100M - $250M
903
$120M
$100M - $250M
902
$500M - $1B
902
$92M
$250M - $500M
902
$492M
$1B - $10B
902
$94M
$100M - $250M
901
<$1M
901
$250M - $500M
901
$102M
$50M - $100M
901
$500M - $1B
901
$250M - $500M
900
$250M - $500M
900
$373M
$250M - $500M
900
$250M - $500M
899
$1B - $10B
899
$100M - $250M
898
$500M - $1B
898
$12M
$250M - $500M
898
$1.1B
$100M - $250M
898
$689M
$25M - $50M
898
$25M - $50M
898
$59M
$100M - $250M
897
$500M - $1B
897
$89M
$1B - $10B
896
$1B - $10B
896
$100M - $250M
896
$100M - $250M
896
$90M
$250M - $500M
896
$1B - $10B
895
$4.7M
$50M - $100M
895
$25M - $50M
895
$250M - $500M
895
$37M
$10M - $25M
894
$250M - $500M
894
$6.8M
$1B - $10B
894
$100M - $250M
893
$50M - $100M
893
$50M - $100M
892
$1.3M
$1B - $10B
892
$820M
$100M - $250M
892
$545M
$100M - $250M
892
$450M
$250M - $500M
892
$100M - $250M
891
$500M - $1B
891
$1M - $10M
891
$100M - $250M
891
$250M - $500M
891
$18M
$500M - $1B
891
$100M - $250M
891
$1M - $10M
891
$187M
$250M - $500M
891
$531M
$1B - $10B
890
$250M - $500M
890
$1.1B
$500M - $1B
890
$100M - $250M
890
$44M
$250M - $500M
890
$50M - $100M
890
$100M - $250M
889
$50M - $100M
889
$250M - $500M
888
$10B+
888
$1B - $10B
888
$100M - $250M
887
$8.3M
$500M - $1B
887
$915M
$500M - $1B
887
$100M - $250M
887
$1.3B
$1B - $10B
887
$500M - $1B
887
$10B+
886
$303M
$500M - $1B
885
$10M - $25M
884
$10M - $25M
884
$510M
$50M - $100M
884
$87M
$1B - $10B
884
$250M - $500M
884
$57M
$100M - $250M
884
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 Hiwell, Sesame Workshop and Equisoft.
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
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