List of Companies Using Slack
Prospecting companies using Slack? Here they are, biggest first, including Orion Advisor Solutions, P3 Promotions (powered by HALO Branded Solutions) and PMA Companies. Open a company to see its revenue range, headcount, tech stack and the people to contact.
Company NameIndustryLocationFundingRevenueEmployees
$50M - $100M
1K
<$1M
1K
$100M - $250M
1K
$1M - $10M
1K
$50M - $100M
1K
$10M - $25M
1K
$100M - $250M
1K
$1M - $10M
1K
$1M - $10M
1K
<$1M
1K
$10M - $25M
1K
$31M
$250M - $500M
1K
$18M
$1M - $10M
1K
$34M
$10M - $25M
1K
$240M
$50M - $100M
1K
$6.8M
<$1M
1K
$50M - $100M
1K
$10M - $25M
1K
$1B - $10B
1K
$750M
$1M - $10M
1K
$1M - $10M
1K
$250M - $500M
1K
$25M - $50M
1K
$1M - $10M
1K
<$1M
1K
$1M - $10M
1K
$100M - $250M
1K
$25M - $50M
1K
$6M
<$1M
1K
<$1M
1K
$100M - $250M
1K
$1M - $10M
1K
$1M - $10M
1K
$1M - $10M
1K
$2M
$1M - $10M
1K
$25M - $50M
1K
<$1M
1K
$500M - $1B
1K
<$1M
1K
<$1M
1K
$1M - $10M
1K
$25M - $50M
1K
$1M - $10M
1K
<$1M
1K
$25M - $50M
1K
$1M - $10M
1K
<$1M
1K
$1M - $10M
1K
$16M
$1M - $10M
1K
$1M - $10M
1K
$25M - $50M
1K
$100M - $250M
1K
$1M - $10M
1K
$5.6M
<$1M
1K
$10M - $25M
1K
$131M
$500M - $1B
1K
<$1M
1K
<$1M
1K
<$1M
1K
$165K
<$1M
1K
$152M
$250M - $500M
1K
$25M - $50M
1K
$10B+
999
$293M
$25M - $50M
999
$50M - $100M
998
$417M
$500M - $1B
998
$50M - $100M
998
$3.5M
$500M - $1B
998
$399M
$250M - $500M
997
$103M
$100M - $250M
997
$250M - $500M
997
$1.9B
$100M - $250M
996
$4.5M
$250M - $500M
996
$1B - $10B
995
$194M
$250M - $500M
994
$110K
$1B - $10B
994
$310M
$1B - $10B
994
$53M
$25M - $50M
994
$24M
$500M - $1B
994
$475M
$1B - $10B
994
$648M
$500M - $1B
993
$250M - $500M
993
$1B - $10B
993
$100M - $250M
993
$280M
$25M - $50M
992
$250M - $500M
992
$25M - $50M
992
$517M
$250M - $500M
992
$8.2M
$250M - $500M
992
$25M - $50M
991
$529M
$250M - $500M
991
$25M - $50M
991
$10M - $25M
990
$318M
$250M - $500M
990
$645M
$250M - $500M
990
$250M - $500M
990
$22M
$500M - $1B
989
$500M - $1B
989
$250M - $500M
988
$25M
$500M - $1B
987
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 Orion Advisor Solutions, P3 Promotions (powered by HALO Branded Solutions) and PMA Companies.
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
Top companies in United States by employee countTop companies in United Kingdom by employee countTop companies in Canada by employee countTop companies in Germany by employee countTop companies in France by employee countTop companies in Australia by employee countTop companies in Netherlands by employee countTop companies in India by employee countTop companies in Spain by employee countTop companies in Switzerland by employee countTop companies in Sweden by employee countTop companies in Italy by employee countTop companies in Denmark by employee countTop companies in Brazil by employee countTop companies in Ireland by employee count
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