List of Companies Using Slack
Prospecting companies using Slack? Here they are, biggest first, including Simpro Software, Solace and By Light Professional IT Services. Open a company to see its revenue range, headcount, tech stack and the people to contact.
Company NameIndustryLocationFundingRevenueEmployees
$397M
$100M - $250M
724
$805M
$250M - $500M
724
$500M - $1B
723
$250M - $500M
723
$229M
$250M - $500M
723
$279M
$100M - $250M
723
$97M
$100M - $250M
723
$25M
$250M - $500M
722
$126M
$500M - $1B
722
$1B - $10B
722
$6.8M
$500M - $1B
722
$25M - $50M
722
$10M - $25M
722
$69M
$100M - $250M
721
$170M
$250M - $500M
721
$36M
$100M - $250M
720
$100M - $250M
720
$397K
$250M - $500M
720
$850K
$100M - $250M
720
$250M - $500M
719
$100M - $250M
719
$50M - $100M
719
$100M - $250M
718
$500M - $1B
718
$100M - $250M
718
$100M - $250M
717
$1M - $10M
717
$500M - $1B
717
$25M - $50M
717
$418M
$250M - $500M
717
$1.5B
$500M - $1B
716
$100M - $250M
716
$100M - $250M
716
$1M - $10M
716
$273M
$1B - $10B
716
$500M - $1B
715
$122M
$100M - $250M
715
$100M - $250M
715
$250M - $500M
715
$500M - $1B
715
$138M
$250M - $500M
714
$25M - $50M
714
$525M
$250M - $500M
713
$865M
$1B - $10B
712
$1B - $10B
712
$59M
$10M - $25M
712
$100M - $250M
711
$25M - $50M
711
$500M - $1B
711
$100M - $250M
710
$2.6B
$10B+
710
$500M - $1B
710
$100M - $250M
710
$500M - $1B
710
$1.3M
$250M - $500M
710
$314M
$250M - $500M
710
$250M - $500M
710
$500M - $1B
709
$25M - $50M
709
$25M - $50M
709
$250M - $500M
709
$500M - $1B
709
$27M
$100M - $250M
709
$50M - $100M
709
$50M - $100M
708
$39M
$250M - $500M
708
$50M - $100M
708
$1B - $10B
708
$500M - $1B
708
$100M - $250M
707
$765M
$500M - $1B
707
$50M - $100M
707
$25M - $50M
707
$1B - $10B
707
$633M
$250M - $500M
706
$437M
$1B - $10B
706
$77M
$25M - $50M
706
$50M - $100M
706
$204M
$1B - $10B
705
$100M - $250M
705
$1.3B
$100M - $250M
705
$500M - $1B
704
$800M
$1B - $10B
704
$276M
$25M - $50M
704
$100M - $250M
704
$250M - $500M
704
$721M
$500M - $1B
704
$1.6B
$500M - $1B
703
$446M
$100M - $250M
703
$50M - $100M
703
$438M
$500M - $1B
702
$100M - $250M
702
$427M
$1B - $10B
702
$502M
$500M - $1B
702
$873M
$500M - $1B
702
$1B - $10B
702
$250M - $500M
701
$75M
$10M - $25M
701
$10M - $25M
701
$1B - $10B
700
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 Simpro Software, Solace and By Light Professional IT Services.
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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