List of Companies Using Slack
Prospecting companies using Slack? Here they are, biggest first, including Copado, Schneider Downs and Theoria Medical. Open a company to see its revenue range, headcount, tech stack and the people to contact.
Company NameIndustryLocationFundingRevenueEmployees
$271M
$250M - $500M
662
$500M - $1B
662
$100M - $250M
662
$325M
$100M - $250M
662
$145M
$50M - $100M
661
$1.2B
$250M - $500M
661
$100M - $250M
661
$215M
$100M - $250M
660
$500M - $1B
659
$50M - $100M
659
$1B - $10B
659
$100M - $250M
659
$250M - $500M
658
$50M - $100M
658
$1B - $10B
658
$50M - $100M
658
$25M - $50M
657
$325M
$25M - $50M
657
$25M - $50M
657
$100M - $250M
657
$1B - $10B
657
$25M - $50M
657
$509M
$50M - $100M
656
$250M - $500M
656
$330M
$500M - $1B
655
$30M
$500M - $1B
655
$100M - $250M
655
$25M - $50M
654
$100M - $250M
654
$105M
$25M - $50M
654
$106M
$100M - $250M
654
$6.7M
$100M - $250M
654
$250M - $500M
654
$46M
$50M - $100M
654
$100M - $250M
654
$104M
$100M - $250M
654
$12M
$100M - $250M
653
$50M - $100M
653
$250M - $500M
653
$25M - $50M
653
$182M
$50M - $100M
652
$50M - $100M
652
$10M - $25M
652
$50M - $100M
652
$100M - $250M
651
$250M - $500M
651
$100M - $250M
651
$183M
$250M - $500M
651
$100M - $250M
651
$100M - $250M
650
$500M - $1B
650
$160M
$50M - $100M
650
$500M - $1B
650
$10M - $25M
650
$10M - $25M
649
$13M
$100M - $250M
649
$10M - $25M
649
$161M
$50M - $100M
649
$10B+
648
$10M - $25M
648
$7.7M
$500M - $1B
648
$250M - $500M
648
$15M
$1M - $10M
648
$100M - $250M
648
$42M
$500M - $1B
648
$250M - $500M
647
$482M
$250M - $500M
647
$25M - $50M
647
$392M
$500M - $1B
646
$112M
$100M - $250M
646
$100M - $250M
646
$101M
$100M - $250M
646
$500M - $1B
645
$1B - $10B
645
$10M - $25M
645
$500M - $1B
645
$100M - $250M
645
$50M - $100M
644
$1B - $10B
644
$100M - $250M
644
$864M
$250M - $500M
644
$34M
$10M - $25M
643
$3.5M
$100M - $250M
643
$1.6B
$100M - $250M
643
$511M
<$1M
643
$130M
$250M - $500M
642
$1M - $10M
642
$27M
$50M - $100M
642
$100M - $250M
642
$10M - $25M
642
$100M - $250M
641
$50M - $100M
641
$25M - $50M
641
$250M - $500M
641
$7M
$250M - $500M
641
$1B - $10B
640
$500M - $1B
640
$652M
$500M - $1B
640
$25M - $50M
640
$150K
$500M - $1B
640
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 Copado, Schneider Downs and Theoria Medical.
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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