List of Companies Using Slack
Prospecting companies using Slack? Here they are, biggest first, including Affinity Group, Sales & Marketing Agency, Eucalyptus and MNTN. Open a company to see its revenue range, headcount, tech stack and the people to contact.
Company NameIndustryLocationFundingRevenueEmployees
$250M - $500M
916
$120M
$100M - $250M
916
$186M
$250M - $500M
916
$1B - $10B
916
$100M - $250M
916
$50M - $100M
916
$167M
$25M - $50M
915
$2.5M
$250M - $500M
915
$1.3B
$1B - $10B
914
$25M - $50M
914
$1.8B
$1B - $10B
914
$1B - $10B
914
$866M
$100M - $250M
913
$250M - $500M
913
$315M
$1B - $10B
913
$500M - $1B
913
$250M - $500M
913
$5M
$500M - $1B
912
$30M
$250M - $500M
912
$28M
$50M - $100M
911
$50M - $100M
911
$915M
$500M - $1B
911
$500M - $1B
911
$100M - $250M
910
$1.2B
$100M - $250M
910
$12M
$250M - $500M
910
$1M - $10M
910
$102M
$50M - $100M
909
$106M
$500M - $1B
909
$187M
$250M - $500M
909
$25M - $50M
909
$500M - $1B
908
$1B - $10B
908
$1B - $10B
907
$10B+
907
$100M - $250M
907
$1M - $10M
907
$25M - $50M
907
$29M
$100M - $250M
907
$50M - $100M
906
$100M - $250M
906
$1B - $10B
906
$100M - $250M
906
$522M
$250M - $500M
906
$1.3M
$1B - $10B
905
$1B - $10B
905
$250M - $500M
905
$100M - $250M
905
$1.6B
$250M - $500M
904
$250M - $500M
904
$50M - $100M
904
$5M
$50M - $100M
903
$50M - $100M
903
$100M - $250M
903
$6.8M
$1B - $10B
903
$689M
$25M - $50M
902
$84M
$500M - $1B
902
$500M - $1B
902
$373M
$250M - $500M
902
$138M
$250M - $500M
901
$80M
$500M - $1B
901
$820M
$250M - $500M
901
$1B - $10B
901
$89M
$1B - $10B
900
$25M - $50M
900
$37M
$10M - $25M
900
$250M - $500M
900
$250M - $500M
900
$316M
$1B - $10B
900
$4.7M
$50M - $100M
899
<$1M
899
$1B - $10B
899
$250M - $500M
899
$10M - $25M
898
$100M - $250M
898
$2.5B
$250M - $500M
897
$500M - $1B
897
$100M - $250M
897
$500M - $1B
897
$8.3M
$500M - $1B
896
$151M
$250M - $500M
896
$1B - $10B
896
$124M
$500M - $1B
896
$25M - $50M
896
$891M
$100M - $250M
895
$500M - $1B
895
$1.1B
$100M - $250M
895
$822M
$500M - $1B
895
$100M - $250M
894
$37M
$100M - $250M
894
$533M
$100M - $250M
894
$100M - $250M
893
$531M
$250M - $500M
893
$59M
$100M - $250M
893
$100M - $250M
893
$44M
$250M - $500M
893
$250M - $500M
892
$10B+
892
$397M
$250M - $500M
892
$50M - $100M
892
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 Affinity Group, Sales & Marketing Agency, Eucalyptus and MNTN.
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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