List of Companies Using Slack
Prospecting companies using Slack? Here they are, biggest first, including Trantor, phData and H E B Grocery Co. Open a company to see its revenue range, headcount, tech stack and the people to contact.
Company NameIndustryLocationFundingRevenueEmployees
$50M - $100M
884
$2.5M
$250M - $500M
884
$500M - $1B
883
$337M
$500M - $1B
883
$500M - $1B
883
$1B - $10B
883
$250M - $500M
882
$100M - $250M
882
$1B - $10B
882
$533M
$100M - $250M
882
$100M - $250M
882
$1.2B
$250M - $500M
881
$500M - $1B
881
$1.2B
$100M - $250M
881
$659M
$250M - $500M
881
$1M - $10M
881
$15M
$250M - $500M
880
$50M - $100M
880
$500M
$1B - $10B
880
$500M - $1B
879
$100M - $250M
879
$100M - $250M
879
$50M - $100M
879
$250M - $500M
878
$100M - $250M
877
$1.1B
$500M - $1B
877
$50M - $100M
877
$1.8M
$50M - $100M
877
$100M - $250M
877
$55M
$1B - $10B
876
$781M
$50M - $100M
876
$2.2B
$50M - $100M
876
$100M - $250M
876
$250M - $500M
875
$299M
$100M - $250M
875
$88M
$250M - $500M
875
$100M - $250M
875
$1.5M
$250M - $500M
875
$500M - $1B
875
$1B - $10B
875
$990M
$100M - $250M
875
$100M - $250M
875
$10B+
874
$397M
$250M - $500M
874
$250M - $500M
874
$25M - $50M
873
$15M
$25M - $50M
873
$50M - $100M
872
$10M - $25M
872
$100M - $250M
872
$1B - $10B
871
$100M - $250M
871
$100M - $250M
871
$10M - $25M
871
$100M - $250M
871
$1B - $10B
871
$25M - $50M
870
$342M
$500M - $1B
870
$100M - $250M
870
$989M
$500M - $1B
869
$1B - $10B
869
$1.1B
$250M - $500M
869
$355M
$100M - $250M
869
$1B - $10B
868
$10M - $25M
868
$1B - $10B
868
$1M - $10M
868
$1.6B
$250M - $500M
867
$1B - $10B
867
$250M - $500M
867
$1B - $10B
867
$500M - $1B
865
$156M
$100M - $250M
865
$250M - $500M
865
$25M - $50M
863
$185M
$500M - $1B
863
$940M
$1B - $10B
862
$50M - $100M
862
$115M
$100M - $250M
862
$100M - $250M
862
$164M
$1B - $10B
861
$187M
$50M - $100M
860
$100M - $250M
860
$100M - $250M
859
$3.2M
$1B - $10B
859
$1B - $10B
859
$371M
$250M - $500M
859
$1B
$1B - $10B
859
$50M - $100M
858
$500M - $1B
858
$250M - $500M
858
$250M - $500M
857
$250M - $500M
857
$324M
$1B - $10B
857
$181M
$250M - $500M
856
$460M
$250M - $500M
856
$1B - $10B
856
$100M - $250M
855
$1B - $10B
855
$891M
$100M - $250M
855
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 Trantor, phData and H E B Grocery Co.
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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