List of Companies Using Slack
Prospecting companies using Slack? Here they are, biggest first, including S3 McMillan, Samsung New Zealand and SeenThis. Open a company to see its revenue range, headcount, tech stack and the people to contact.
Company NameIndustryLocationFundingRevenueEmployees
$50M - $100M
139
$1M - $10M
139
$50M - $100M
139
$79M
$25M - $50M
139
$50M - $100M
139
$856M
$100M - $250M
139
$58M
$100M - $250M
139
$100M - $250M
139
$10M - $25M
139
$1M - $10M
139
$10M - $25M
139
$1M - $10M
139
$46M
$50M - $100M
139
$100M - $250M
139
$15M
$100M - $250M
139
$100M - $250M
139
$10M - $25M
139
$195M
$100M - $250M
139
$1M - $10M
139
$100M - $250M
139
$50M - $100M
139
<$1M
138
$1M - $10M
138
$50M - $100M
138
$187M
$50M - $100M
138
$50M - $100M
138
$23M
$250M - $500M
138
$594K
$50M - $100M
138
$25M - $50M
138
$145M
$100M - $250M
138
$1M - $10M
138
$145M
$100M - $250M
138
$10M - $25M
138
$25M - $50M
138
$50M - $100M
138
$50M - $100M
138
$1M - $10M
138
$49M
$1M - $10M
138
$50M - $100M
138
$26M
$100M - $250M
138
$50M - $100M
138
$153M
$1M - $10M
138
$10M - $25M
138
$100M - $250M
138
$50M - $100M
138
$1M - $10M
138
$5.8M
$50M - $100M
138
$50M - $100M
138
$10M - $25M
138
$10M - $25M
138
$14M
$10M - $25M
138
$21M
$10M - $25M
138
$2M
$250M - $500M
138
$10M - $25M
138
$10M - $25M
138
$34M
$100M - $250M
138
$275K
$1M - $10M
138
$25M - $50M
138
$100M - $250M
138
$6M
$1M - $10M
138
$247M
$100M - $250M
138
$10M - $25M
138
$89M
$100M - $250M
137
$1M - $10M
137
$10M - $25M
137
<$1M
137
$10M - $25M
137
$10M - $25M
137
$50M - $100M
137
$6.6M
$1M - $10M
137
$93M
$25M - $50M
137
$50M - $100M
137
$100M - $250M
137
$1M - $10M
137
$5M
$25M - $50M
137
$121M
$250M - $500M
137
$50M - $100M
137
$100M - $250M
137
$131M
$50M - $100M
137
<$1M
137
$100M - $250M
137
$350M
$25M - $50M
137
$50M - $100M
137
$13M
$1B - $10B
137
$62M
$100M - $250M
137
$100M - $250M
137
$1B - $10B
137
$9M
$1M - $10M
137
$28M
$10M - $25M
137
$25M - $50M
137
$50M - $100M
137
$25M - $50M
137
$100M
$25M - $50M
137
$250M - $500M
137
$100M - $250M
137
$238M
$100M - $250M
137
$25M - $50M
137
$10M - $25M
137
$50M - $100M
137
$1B - $10B
137
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 S3 McMillan, Samsung New Zealand and SeenThis.
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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