List of Companies Using Slack
Prospecting companies using Slack? Here they are, biggest first, including Erewhon, Quantinuum and SQUAD. Open a company to see its revenue range, headcount, tech stack and the people to contact.
Company NameIndustryLocationFundingRevenueEmployees
$100M - $250M
747
$2.7B
$25M - $50M
747
$250M - $500M
747
$25M - $50M
747
$25M - $50M
746
$25M - $50M
746
$500M - $1B
745
$25M - $50M
745
$50M - $100M
744
$500M - $1B
744
$256M
$1B - $10B
743
$100M - $250M
743
$100M - $250M
743
$250M - $500M
743
$500M - $1B
742
$250M - $500M
742
$125M
$50M - $100M
742
$500M - $1B
741
$491K
$25M - $50M
741
$500M - $1B
740
$100M - $250M
740
$325M
$25M - $50M
740
$250M - $500M
740
$50M - $100M
740
$76M
$100M - $250M
740
$250M - $500M
740
$500M - $1B
739
$220M
$100M - $250M
739
$25M - $50M
739
$58M
$250M - $500M
738
$1B - $10B
738
$10M - $25M
737
$99M
$50M - $100M
737
$100M
$500M - $1B
737
$25M - $50M
737
$218M
$25M - $50M
736
$100M - $250M
736
$1.1B
$1B - $10B
736
$100M - $250M
736
$1.2B
$500M - $1B
736
$500M - $1B
736
$815M
$100M - $250M
735
$1M - $10M
735
$1B - $10B
735
$250M - $500M
735
$50M - $100M
735
$25M - $50M
734
$500M - $1B
734
$100M - $250M
734
$100M - $250M
734
$100M - $250M
733
$164M
$250M - $500M
733
$100M - $250M
733
$50K
$1M - $10M
733
$100M - $250M
733
$50M - $100M
732
$160M
$50M - $100M
731
$100M - $250M
730
$10M - $25M
730
$1M
$25M - $50M
730
$250M - $500M
729
$50M - $100M
729
$1M - $10M
729
$50M - $100M
729
$1M - $10M
729
$100M - $250M
728
$250M - $500M
728
$3.6B
$250M - $500M
728
$5.5M
$500M - $1B
728
$100M - $250M
728
$500M - $1B
728
$500M - $1B
728
$1B - $10B
728
$652M
$500M - $1B
728
$250M - $500M
728
$100M - $250M
728
$1B - $10B
728
$250M - $500M
728
$500M - $1B
727
$1B - $10B
727
$500M - $1B
727
$1B - $10B
727
$107M
$250M - $500M
727
$50M - $100M
727
$301M
$100M - $250M
727
$25M - $50M
727
$60M
$1M - $10M
727
$76K
$25M - $50M
726
$149M
$500M - $1B
726
$250M - $500M
726
$100M - $250M
726
$100M - $250M
726
$80M
$250M - $500M
726
$136M
$250M - $500M
726
$1B - $10B
725
$138M
$100M - $250M
725
$10M - $25M
725
$500M - $1B
724
$500M - $1B
724
$247M
$1B - $10B
724
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 Erewhon, Quantinuum and SQUAD.
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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