List of Companies Using Slack
Prospecting companies using Slack? Here they are, biggest first, including Mercy, The Ohio State University and VML. Open a company to see its revenue range, headcount, tech stack and the people to contact.
Company NameIndustryLocationFundingRevenueEmployees
$4.2M
$1B - $10B
31K
$52M
$1B - $10B
31K
$10B+
31K
$100M - $250M
31K
$104M
$1B - $10B
31K
$8.2B
$10B+
31K
$51M
$1B - $10B
30K
$5.5B
$10B+
30K
$176M
$1B - $10B
30K
$10B+
30K
$19M
$1B - $10B
30K
$222M
$10B+
30K
$745M
$10B+
30K
$7M
$10B+
30K
$2.9B
$1B - $10B
30K
$10B+
29K
$10B+
29K
$3.7B
$10B+
29K
$1B - $10B
29K
$45M
$1B - $10B
29K
$10B
$10B+
29K
$164M
$1B - $10B
29K
$275M
$500M - $1B
29K
$5.8B
$1B - $10B
29K
$1B
$10B+
29K
$3M
$10B+
29K
$28M
$1B - $10B
29K
$7.5M
$10B+
28K
$1B
$1B - $10B
28K
$122M
$1B - $10B
28K
$1B - $10B
28K
$1B - $10B
28K
$10B+
28K
$110M
$10B+
28K
$14B
$10B+
28K
$1B - $10B
28K
$2B
$1B - $10B
28K
$750M
$1B - $10B
28K
$1B - $10B
27K
$3.6B
$10B+
27K
$28M
$1B - $10B
27K
$18B
$10B+
27K
$1B - $10B
27K
$10B+
27K
$305M
$1B - $10B
27K
$7.9M
$1B - $10B
27K
$500M - $1B
27K
$10B+
27K
$500K
$10B+
27K
$389K
$1B - $10B
26K
$1B - $10B
26K
$4.4B
$1B - $10B
26K
$4.1B
$1B - $10B
26K
$10B+
26K
$1B - $10B
26K
$10B+
26K
$25M - $50M
26K
$2.7B
$10B+
26K
$5.2B
$10B+
25K
$2.9B
$1B - $10B
25K
$10B+
25K
$8.2B
$10B+
25K
$2.2B
$1B - $10B
25K
$1B
$1B - $10B
25K
$500M - $1B
25K
$700M
$10B+
25K
$6.8B
$1B - $10B
25K
$4.4B
$10B+
25K
$1.9B
$1B - $10B
25K
$50M - $100M
24K
$500M - $1B
24K
$1.7B
$10B+
24K
$2.2M
$1B - $10B
24K
$10B+
24K
$10B+
24K
$1B - $10B
24K
$23M
$1B - $10B
24K
$10B+
24K
$21M
$1B - $10B
24K
$20M
$1B - $10B
24K
$30B
$10B+
24K
$155M
$10B+
24K
$1.8M
$10B+
24K
$1.1B
$1B - $10B
24K
$65M
$10B+
24K
$33M
$1B - $10B
24K
$2B
$1B - $10B
23K
$250M - $500M
23K
$4.5M
$10B+
23K
$500M - $1B
23K
$500M
$1B - $10B
23K
$117M
$10B+
23K
$1.1B
$1B - $10B
23K
$1B - $10B
23K
$1.2B
$10B+
23K
$81M
$1B - $10B
23K
$1.5B
$1B - $10B
22K
$1.8B
$1B - $10B
22K
$71M
$1B - $10B
22K
$1.2B
$10B+
22K
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 Mercy, The Ohio State University and VML.
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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