List of Companies Using Slack
Prospecting companies using Slack? Here they are, biggest first, including HITEC, J2 Global and PLAYSTUDIOS. Open a company to see its revenue range, headcount, tech stack and the people to contact.
Company NameIndustryLocationFundingRevenueEmployees
$100M - $250M
398
$100M - $250M
398
$361M
$250M - $500M
398
$58M
$100M - $250M
398
$876M
$50M - $100M
398
$250M - $500M
398
$372M
$100M - $250M
398
$100M - $250M
398
$50M - $100M
398
$228M
$50M - $100M
397
$100M - $250M
397
$174M
$100M - $250M
397
$119M
$100M - $250M
397
$10M - $25M
397
$500M - $1B
397
$1M - $10M
397
$50M - $100M
397
$25M - $50M
397
$2.6B
$500M - $1B
397
$12M
$10M - $25M
397
$1M - $10M
397
$100M - $250M
397
$648M
$100M - $250M
397
$43M
$1M - $10M
397
$72M
$1B - $10B
397
$250M - $500M
396
$10M - $25M
396
$50M - $100M
396
$337M
$500M - $1B
396
$19M
$1M - $10M
396
$500M - $1B
396
$250M - $500M
396
$4.8M
$250M - $500M
396
$10M - $25M
396
$20M
$100M - $250M
395
<$1M
395
$87M
$50M - $100M
395
$507M
$250M - $500M
395
$9.4M
$100M - $250M
395
$100M - $250M
395
$120K
$50M - $100M
395
$100M - $250M
395
$10M - $25M
395
$10M - $25M
394
$1B - $10B
394
$25M - $50M
394
$190M
$10M - $25M
394
$48M
$50M - $100M
394
$100M - $250M
394
$450M
$500M - $1B
394
$1M - $10M
394
$25M - $50M
394
$500M - $1B
394
$767M
$100M - $250M
394
$100M - $250M
394
$250M - $500M
394
$14M
$100M - $250M
394
$201M
$250M - $500M
394
$257M
$250M - $500M
394
$47M
$100M - $250M
394
$250M - $500M
393
$51M
$100M - $250M
393
$58M
$10M - $25M
393
$25M - $50M
393
$500M - $1B
393
$1M - $10M
393
$286M
$50M - $100M
393
$10M - $25M
393
$75M
$25M - $50M
393
$50M
$50M - $100M
393
$100M - $250M
393
$50M - $100M
393
$303M
$100M - $250M
392
$50M - $100M
392
$100M - $250M
392
$500M - $1B
392
$25M - $50M
392
$21M
$100M - $250M
392
$10M - $25M
392
$10M
$50M - $100M
392
$36M
$100M - $250M
392
$10M - $25M
392
$10M - $25M
392
$532M
$250M - $500M
391
$10M - $25M
391
$177M
$250M - $500M
391
$1B - $10B
391
$25M - $50M
391
$500M - $1B
391
$100M - $250M
391
$266M
$500M - $1B
391
$250M - $500M
391
$500M - $1B
391
$50M - $100M
391
$10M - $25M
391
$50M - $100M
391
$1M - $10M
391
$250K
$250M - $500M
391
$250M - $500M
390
$55M
$100M - $250M
390
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 HITEC, J2 Global and PLAYSTUDIOS.
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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