List of Companies Using OpenAI
Prospecting companies using OpenAI? Here they are, biggest first, including Vector Institute, WebMD Health Services and AST LLC. Open a company to see its revenue range, headcount, tech stack and the people to contact.
Company NameIndustryLocationFundingRevenueEmployees
$30M
$25M - $50M
589
$250M - $500M
589
$250M - $500M
588
$1B - $10B
588
$3.5M
$250M - $500M
588
$23M
$250M - $500M
588
$250M - $500M
588
$250M - $500M
588
$1B - $10B
588
$500M - $1B
588
$25M - $50M
588
$25M - $50M
587
$25M - $50M
587
$500M - $1B
587
$16M
$1B - $10B
587
$10M
$100M - $250M
587
$2.3M
$25M - $50M
587
$25M - $50M
587
$100M - $250M
587
$118M
$100M - $250M
587
$453M
$250M - $500M
587
$250M - $500M
587
$250M - $500M
586
$10M - $25M
586
$1M - $10M
586
$250M - $500M
586
$250M - $500M
586
$250M - $500M
586
$1B - $10B
586
$100M - $250M
586
$1M - $10M
586
$297M
$250M - $500M
586
$250M - $500M
586
$770M
$500M - $1B
586
$100M - $250M
586
$50M - $100M
586
$250M - $500M
586
$25M - $50M
586
$100M - $250M
586
$250M - $500M
585
$25M - $50M
585
$100M - $250M
585
$306M
$500M - $1B
585
$1.5B
$100M - $250M
585
$50M - $100M
585
$1B - $10B
585
$4.7M
$25M - $50M
585
$100M - $250M
584
$25M - $50M
584
$10M - $25M
584
$69M
$100M - $250M
584
$10M - $25M
584
$1M - $10M
584
$77M
$50M - $100M
584
$7.5M
$100M - $250M
584
$100M - $250M
584
$250M - $500M
584
$25M - $50M
584
$25M - $50M
584
$100M - $250M
584
$250M - $500M
584
$50M - $100M
583
$126M
$100M - $250M
583
$100M - $250M
583
$100M - $250M
583
$100M - $250M
583
$100M - $250M
583
$500M - $1B
583
$500M - $1B
583
$80M
$100M - $250M
583
$414M
$50M - $100M
583
$250M - $500M
583
$239M
$250M - $500M
583
$10M - $25M
583
$653M
$1B - $10B
583
$10M - $25M
583
$2.8B
$250M - $500M
583
$146M
$250M - $500M
583
$274M
$250M - $500M
583
$38M
$100M - $250M
583
$135M
$50M - $100M
583
$500M - $1B
583
$100M - $250M
582
$200M
$250M - $500M
582
$500M - $1B
582
$10M - $25M
582
$250M - $500M
582
$100M - $250M
582
$1M - $10M
582
$100M - $250M
582
$25M - $50M
582
$100M - $250M
582
$1B - $10B
582
$250M - $500M
581
$500M - $1B
581
$500M - $1B
581
$50M - $100M
581
$1B - $10B
581
$500M - $1B
581
$1B - $10B
581
About companies using OpenAI
Why target companies using OpenAI?
OpenAI is a AI technology. Companies running these tools are already adopting AI assistants and machine learning platforms, the early adopters for AI products and services. Companies on the list include Vector Institute, WebMD Health Services and AST LLC.
Which industries use OpenAI the most?
Among companies using OpenAI on LeadIQ, the most common industries are Software Development, IT Services and IT Consulting, Financial Services, Advertising Services, Higher Education and Technology, Information and Internet. Narrow your list to the industry you sell into from there.
Where are companies using OpenAI located?
Companies using OpenAI are most often headquartered in the United States, the United Kingdom, Canada, Germany, France and Australia.
What other AI technologies do companies use?
Prospecting the wider AI space? Related technologies with their own company lists include Claude by Anthropic, GitHub Copilot, Microsoft 365 Copilot and Amazon SageMaker.
How do I reach decision makers at companies using OpenAI?
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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