List of Companies Using Slack
Prospecting companies using Slack? Here they are, biggest first, including KQED, NEFCO and SMG - Service Management Group. Open a company to see its revenue range, headcount, tech stack and the people to contact.
Company NameIndustryLocationFundingRevenueEmployees
$400K
$250M - $500M
602
$500M - $1B
602
$2.4M
$500M - $1B
602
$100M - $250M
602
$500M - $1B
601
$500M - $1B
601
$292M
$250M - $500M
601
$92M
$100M - $250M
601
$30M
$25M - $50M
601
$10M - $25M
600
$100M - $250M
600
$1M
$250M - $500M
600
$500M - $1B
600
$10M - $25M
600
$257M
$500M - $1B
599
$415M
$500M - $1B
599
$414M
$50M - $100M
599
$50M - $100M
599
$17M
$50M - $100M
599
$81M
$50M - $100M
598
$10M - $25M
598
$50M - $100M
598
$50M - $100M
598
$250M - $500M
598
$100M - $250M
598
$250M - $500M
597
$880M
$25M - $50M
597
$100M - $250M
597
$1B - $10B
597
$210K
$100M - $250M
597
$50M - $100M
597
$1M - $10M
597
$1M - $10M
596
$181M
$500M - $1B
596
$306M
$500M - $1B
596
$37M
$250M - $500M
596
$650K
$500M - $1B
596
$50M - $100M
596
$100M - $250M
596
$10M
$50M - $100M
596
$23M
$500M - $1B
596
$25M - $50M
596
$100M - $250M
596
$250M - $500M
595
$25M - $50M
595
$100M - $250M
595
$5.3M
$500M - $1B
595
$50M - $100M
595
$292M
$500M - $1B
595
$250M - $500M
594
$10M - $25M
594
$250M - $500M
594
$17M
$50M - $100M
594
$250M - $500M
593
$25M - $50M
593
$1B - $10B
593
$1B - $10B
593
$146M
$250M - $500M
593
$1.1B
$500M - $1B
593
$100M - $250M
592
$10M - $25M
592
$100M - $250M
592
$902M
$250M - $500M
592
$10M - $25M
591
$69M
$100M - $250M
591
$250M - $500M
590
$25M - $50M
590
$500M - $1B
590
$500M - $1B
590
$44M
$100M - $250M
590
$62M
$1B - $10B
590
$250M - $500M
590
$1M - $10M
590
$1M - $10M
590
$19M
$1B - $10B
590
$64M
$100M - $250M
590
$500M - $1B
589
$1.5B
$1B - $10B
589
$2M
$100M - $250M
589
$100M - $250M
589
$10M - $25M
588
$10M - $25M
588
$100M - $250M
588
$50M - $100M
588
$698M
$50M - $100M
588
$500M - $1B
588
$25M - $50M
587
$500M
$1B - $10B
587
$25M - $50M
587
$887M
$25M - $50M
586
$568M
$1B - $10B
586
$180M
$250M - $500M
586
$453M
$250M - $500M
586
$250M - $500M
586
$252M
$100M - $250M
586
$1.2B
$100M - $250M
586
$166M
$500M - $1B
585
$138M
$250M - $500M
585
$500M - $1B
585
$10M - $25M
585
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 KQED, NEFCO and SMG - Service Management Group.
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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