List of Companies Using Slack
Prospecting companies using Slack? Here they are, biggest first, including QualityLogic, Rankings.io and Richwood. Open a company to see its revenue range, headcount, tech stack and the people to contact.
Company NameIndustryLocationFundingRevenueEmployees
$100M - $250M
158
$100M - $250M
158
$250M - $500M
158
$100M - $250M
158
$50M - $100M
158
$500M - $1B
158
$50M - $100M
158
$25K
$10M - $25M
158
$65M
$100M - $250M
158
$1M - $10M
158
$48M
$25M - $50M
158
$111M
$100M - $250M
158
158
$10M - $25M
158
$10M - $25M
158
$108M
$250M - $500M
157
$50M - $100M
157
$2.4B
$100M - $250M
157
$68M
$100M - $250M
157
$1M - $10M
157
$10M - $25M
157
$1M - $10M
157
$100M - $250M
157
$19M
$100M - $250M
157
$613M
$100M - $250M
157
$12M
$25M - $50M
157
$1M - $10M
157
$187M
$100M - $250M
157
$10M - $25M
157
$24M
$25M - $50M
157
$9.4K
$25M - $50M
157
$63M
$50M - $100M
157
$1M - $10M
157
$54M
$25M - $50M
157
$5.9M
$250M - $500M
157
$111M
$25M - $50M
157
$100M - $250M
157
$51M
$100M - $250M
157
$25M - $50M
157
$250K
$10M - $25M
157
$31M
$25M - $50M
157
$5.6M
$10M - $25M
157
$50M - $100M
157
$32M
$10M - $25M
157
$84M
$10M - $25M
157
$250M - $500M
157
$92M
$25M - $50M
157
$75M
$25M - $50M
157
$1M - $10M
157
$100M - $250M
157
$81M
$100M - $250M
157
$50M - $100M
157
$79M
$50M - $100M
157
$1M - $10M
157
$100M - $250M
157
$1M - $10M
157
$187K
<$1M
157
$50M - $100M
157
$10M - $25M
157
$10M - $25M
157
$100M - $250M
157
$55M
$50M - $100M
156
$10M - $25M
156
$110M
$50M - $100M
156
$14M
$10M - $25M
156
$25M - $50M
156
$104M
$10M - $25M
156
$50M - $100M
156
$100M - $250M
156
$60M
$1M - $10M
156
$50M - $100M
156
$121M
$50M - $100M
156
$10M - $25M
156
$45M
$100M - $250M
156
$164M
$25M - $50M
156
$30M
$25M - $50M
156
$50M - $100M
156
$100M - $250M
156
$41M
$25M - $50M
156
$10M - $25M
156
$50M - $100M
156
$10M - $25M
156
$100M
$250M - $500M
156
$25M - $50M
156
$25M - $50M
156
$10B+
156
$110M
$50M - $100M
156
$50M - $100M
156
$25M - $50M
156
$25M - $50M
156
$100M - $250M
156
$24M
$1M - $10M
156
$19M
<$1M
156
$50M - $100M
156
$163M
$25M - $50M
156
$25M - $50M
156
$250M - $500M
156
$25M - $50M
156
$100M - $250M
156
$100M - $250M
156
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 QualityLogic, Rankings.io and Richwood.
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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