List of Companies Using Slack
Prospecting companies using Slack? Here they are, biggest first, including Seplat Petroleum Development Company Plc, Stack Overflow and Student International Business Council (SIBC). Open a company to see its revenue range, headcount, tech stack and the people to contact.
Company NameIndustryLocationFundingRevenueEmployees
$50M - $100M
619
$153M
$1B - $10B
619
$25M - $50M
619
$250M - $500M
619
$535M
$500M - $1B
619
$1B - $10B
618
$226M
$250M - $500M
618
$25M - $50M
618
$50M - $100M
618
$500K
$250M - $500M
618
$250M - $500M
617
$205M
$50M - $100M
617
$50M - $100M
617
$250M - $500M
617
$10M - $25M
617
$100M - $250M
617
$1M
$500M - $1B
616
$50M - $100M
616
$50M - $100M
616
$1.9B
$1B - $10B
616
$268M
$500M - $1B
616
$376M
$500M - $1B
616
$1B - $10B
615
$100M - $250M
615
$100M - $250M
615
$500M
$1B - $10B
615
$139M
$25M - $50M
615
$271M
$100M - $250M
615
$233M
$250M - $500M
614
$346M
$500M - $1B
614
$306M
$100M - $250M
614
$500M - $1B
614
$65M
$10M - $25M
614
$50M - $100M
614
$769M
$250M - $500M
613
$100M - $250M
613
$569M
$100M - $250M
613
$10M - $25M
613
$250M - $500M
613
$75M
$100M - $250M
613
$1M - $10M
612
$326M
$500M - $1B
612
$100M - $250M
612
$80M
$50M - $100M
611
$533M
$100M - $250M
611
$25M - $50M
611
$1B - $10B
610
$250M - $500M
610
$50M - $100M
610
$500M - $1B
610
$250M - $500M
610
$69M
$50M - $100M
609
$568M
$250M - $500M
609
$250M - $500M
608
$5.4M
$25M - $50M
608
$44M
$100M - $250M
608
$125K
$1B - $10B
608
$100M - $250M
608
$10M - $25M
608
$25M - $50M
608
$100M
$25M - $50M
608
$1.5B
$25M - $50M
608
$100M - $250M
607
$873M
$500M - $1B
607
$100M - $250M
607
$100M - $250M
607
$250M - $500M
606
$10M - $25M
606
$507M
$250M - $500M
606
$237M
$500M - $1B
606
$158M
$250M - $500M
606
$5.6M
$100M - $250M
606
$500M - $1B
606
$100M - $250M
606
$1B - $10B
605
$50M - $100M
605
$500M - $1B
605
$50M - $100M
605
$250M - $500M
605
$730M
$500M - $1B
605
$250M - $500M
604
$250M - $500M
604
$7.5M
$100M - $250M
604
$250K
$100M - $250M
604
$50M - $100M
604
$250M - $500M
604
$1B - $10B
604
$25M - $50M
604
$1B - $10B
603
$1M
$250M - $500M
603
$315M
$500M - $1B
603
$1B - $10B
603
$250M - $500M
603
$1B - $10B
603
$1M - $10M
603
$20M
$250M - $500M
603
$41M
$100M - $250M
602
$1B - $10B
602
$400K
$250M - $500M
602
$500M - $1B
602
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 Seplat Petroleum Development Company Plc, Stack Overflow and Student International Business Council (SIBC).
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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