List of Companies Using Slack
Prospecting companies using Slack? Here they are, biggest first, including ESW, Ford China and Illumio. Open a company to see its revenue range, headcount, tech stack and the people to contact.
Company NameIndustryLocationFundingRevenueEmployees
$100M - $250M
936
$1B - $10B
936
$558M
$1B - $10B
936
$10M - $25M
936
$250M - $500M
935
$121M
$500M - $1B
935
$500M - $1B
935
$100M - $250M
935
$500M - $1B
935
$10M
$50M - $100M
935
$1.1B
$100M - $250M
934
$127M
$100M - $250M
934
$250M - $500M
934
$471M
$250M - $500M
934
$25M - $50M
934
$338M
$250M - $500M
933
$120K
$250M - $500M
933
$1B - $10B
933
$84M
$500M - $1B
933
$245M
$50M - $100M
932
$500M - $1B
932
$100M - $250M
932
$100M - $250M
932
$500M - $1B
932
$350K
$500M - $1B
931
$250M - $500M
931
$25M - $50M
931
$306M
$100M - $250M
931
$250M - $500M
930
$50M - $100M
930
$250M - $500M
930
$21M
$100M - $250M
930
$275M
$1B - $10B
929
$729M
$10M - $25M
929
$1B - $10B
929
$7.1M
$250M - $500M
928
$77M
$500M - $1B
928
$1B - $10B
928
$84M
$25M - $50M
928
$82M
$10B+
927
$74M
$250M - $500M
927
$500M - $1B
927
$500M - $1B
926
$1M - $10M
926
$863M
$500M - $1B
926
$60M
$250M - $500M
925
$1.8B
$1B - $10B
925
$1B - $10B
925
$234M
$500M - $1B
925
$100M - $250M
925
$1B - $10B
924
$1B - $10B
924
$339M
$500M - $1B
924
$50M - $100M
924
$100M - $250M
923
$250M - $500M
922
$1B - $10B
922
$200M
$500M - $1B
921
$56M
$1M - $10M
921
$662M
$100M - $250M
920
$315M
$1B - $10B
919
$500M - $1B
919
$1.4B
$500M - $1B
918
$40M
$500M - $1B
918
$16M
$250M - $500M
917
$2.4B
$500M - $1B
916
$1M - $10M
915
$549M
$1B - $10B
914
$1M - $10M
914
$500M - $1B
914
$50M - $100M
914
$80M
$500M - $1B
914
$500M - $1B
914
$1B - $10B
914
$1M - $10M
914
$522M
$250M - $500M
914
$50M - $100M
914
$250M - $500M
914
$866M
$250M - $500M
913
$1B - $10B
913
$490M
$50M - $100M
913
$250M - $500M
913
$21M
$500M - $1B
913
$50M - $100M
913
$100M - $250M
912
$1M - $10M
912
$500M - $1B
912
$241M
$250M - $500M
912
$1B - $10B
912
$263M
$250M - $500M
911
$25M - $50M
911
$25M - $50M
911
$1B - $10B
911
$5M
$500M - $1B
911
$50M - $100M
911
$1B - $10B
911
$1B - $10B
911
$250M - $500M
910
$28M
$1B - $10B
910
$500M - $1B
910
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 ESW, Ford China and Illumio.
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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