List of Companies Using Slack
Prospecting companies using Slack? Here they are, biggest first, including Crucial Learning, IMM/eSign (now Kinective) and Medvarsity. Open a company to see its revenue range, headcount, tech stack and the people to contact.
Company NameIndustryLocationFundingRevenueEmployees
$250M - $500M
410
$500M - $1B
410
$25M - $50M
410
$100M - $250M
410
$10M - $25M
410
$100M - $250M
410
$51M
$100M - $250M
410
$7.5K
$50M - $100M
410
$10M - $25M
409
$100M - $250M
409
$153M
$100M - $250M
409
$250M - $500M
409
$50M - $100M
409
$196M
$250M - $500M
409
$250M - $500M
408
$250M - $500M
408
$1B - $10B
408
$25M - $50M
408
$1B - $10B
408
$101M
$250M - $500M
408
$25M - $50M
408
$17M
$100M - $250M
408
$250M - $500M
408
$876M
$50M - $100M
408
$514M
$50M - $100M
408
$43M
$1M - $10M
408
$10M - $25M
408
$28M
$250M - $500M
408
$179M
$50M - $100M
407
$100M - $250M
407
$100M - $250M
407
$54M
$250M - $500M
407
$250M - $500M
407
$100M - $250M
407
$4B
$1B - $10B
407
$1M - $10M
407
$25M - $50M
407
$50M - $100M
407
$500M - $1B
406
$25M - $50M
406
$100M - $250M
406
$1B - $10B
406
$6.2B
$100M - $250M
406
$10M - $25M
406
$1M - $10M
406
$222M
$1M - $10M
406
$250M - $500M
406
$45M
$1B - $10B
405
$10M - $25M
405
$177M
$250M - $500M
405
$174M
$100M - $250M
405
$500M - $1B
405
$57M
$100M - $250M
405
$1B - $10B
405
$50M - $100M
405
$100M - $250M
405
$767M
$100M - $250M
405
$1M - $10M
405
$100M - $250M
405
$1B - $10B
405
$165M
$100M - $250M
405
$580M
$250M - $500M
405
$287M
$100M - $250M
404
$179M
$1B - $10B
404
$10M - $25M
404
$1B - $10B
404
$160M
$100M - $250M
404
$1M - $10M
404
$50M - $100M
404
$100M - $250M
404
$50M - $100M
404
$100M - $250M
403
$30M
$10M - $25M
403
$190M
$10M - $25M
403
$82M
$50M - $100M
403
$10M - $25M
403
$25M - $50M
403
$50M - $100M
403
$500M - $1B
403
$73M
$50M - $100M
403
$10M - $25M
403
$100M - $250M
403
$250M - $500M
403
$105M
$1M - $10M
403
$145M
$100M - $250M
402
$96M
$50M - $100M
402
$18M
$50M - $100M
402
$169M
$1B - $10B
402
$75M
$25M - $50M
402
$250M - $500M
402
$1.4B
$100M - $250M
402
$250M - $500M
402
$100M - $250M
402
$250M - $500M
402
$100M - $250M
401
$500M - $1B
401
$10M - $25M
401
$119M
$100M - $250M
401
$242M
$500M - $1B
401
$500M - $1B
401
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 Crucial Learning, IMM/eSign (now Kinective) and Medvarsity.
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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