List of Companies Using Slack
Prospecting companies using Slack? Here they are, biggest first, including Carpenter Contractors of America, Inc. / R & D Thiel, Inc., Fluke Reliability and Gardiner & Theobald LLC. Open a company to see its revenue range, headcount, tech stack and the people to contact.
Company NameIndustryLocationFundingRevenueEmployees
$100M - $250M
390
$100M - $250M
390
$100M - $250M
390
<$1M
390
$1M - $10M
390
$100M - $250M
390
$100M - $250M
390
$100M - $250M
390
$100M - $250M
390
$4.2M
$1M - $10M
389
$100M - $250M
389
$50M - $100M
389
$250M - $500M
389
$100M - $250M
389
$65M
$50M - $100M
389
$100M - $250M
389
$100M - $250M
389
$25M - $50M
389
$25M - $50M
389
$50M - $100M
388
<$1M
388
$25M - $50M
388
$100M - $250M
388
$626M
$50M - $100M
388
$183M
$50M - $100M
388
$250M - $500M
388
$530M
$100M - $250M
388
$50M - $100M
388
$18M
$50M - $100M
388
$250M - $500M
388
$140M
$25M - $50M
388
$250M - $500M
388
$50M - $100M
388
$70M
$250M - $500M
388
$100M - $250M
388
$94M
$50M - $100M
388
$1.7M
$50M - $100M
388
$10M - $25M
388
$500M - $1B
387
$1B
$250M - $500M
387
$500M - $1B
387
$50M - $100M
387
$50M - $100M
387
$358M
$500M - $1B
387
$543M
$250M - $500M
387
$1B - $10B
387
$100M - $250M
387
$201M
$250M - $500M
387
$45M
$50M - $100M
387
$51M
$50M - $100M
387
$272M
$1B - $10B
387
$1.7B
$250M - $500M
387
$1M - $10M
387
$250M - $500M
387
$1.1M
$250M - $500M
387
$1M - $10M
387
$620M
$250M - $500M
387
$250M - $500M
387
$100M - $250M
386
$100M - $250M
386
$100M - $250M
386
$3.6M
$10M - $25M
386
$457M
$100M - $250M
386
$1M - $10M
386
$25M - $50M
386
$169M
$1B - $10B
386
$13M
$10M - $25M
386
$500M - $1B
386
$500M - $1B
386
$10M - $25M
386
$10M - $25M
386
$112M
$25M - $50M
386
$100M - $250M
385
$27M
$250M - $500M
385
$250M - $500M
385
$621M
$1B - $10B
385
$250M - $500M
385
$72M
$1B - $10B
385
$1B - $10B
385
$25M - $50M
385
$50M - $100M
385
$105M
$1M - $10M
385
$100M - $250M
384
$25M - $50M
384
$1.1B
$50M - $100M
384
$16M
$10M - $25M
384
$50M - $100M
384
$210M
$10M - $25M
384
$1M - $10M
384
$320M
$50M - $100M
384
$6.7M
$1M - $10M
384
$301M
$10M - $25M
384
$10M - $25M
384
$585M
$250M - $500M
383
$500M - $1B
383
$208M
$100M - $250M
383
$74M
$25M - $50M
383
$793M
$100M - $250M
383
$100M - $250M
383
$419M
$100M - $250M
383
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 Carpenter Contractors of America, Inc. / R & D Thiel, Inc., Fluke Reliability and Gardiner & Theobald LLC.
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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