List of Companies Using OpenAI

Prospecting companies using OpenAI? Here they are, biggest first, including Fast Lane North America, Fitzrovia and Gresham House. Open a company to see its revenue range, headcount, tech stack and the people to contact.

Company NameIndustryLocationFundingRevenueEmployees
$500M - $1B
303

$100M - $250M
303

$25M - $50M
303

$1.2M
$25M - $50M
303

$25M - $50M
303

Argentina, Ciudad autónoma de Buenos Aires, Buenos Aires
303

$618M
$100M - $250M
303

$100M - $250M
303

$47M
$25M - $50M
303

$25M - $50M
303

$500M - $1B
303

$10M - $25M
303

$50M - $100M
303

$10M - $25M
303

$1M - $10M
303

$50M
$50M - $100M
303

$250M - $500M
303

$1M - $10M
303

$250M - $500M
302

$50M - $100M
302

$1M - $10M
302

$462M
$50M - $100M
302

$250M - $500M
302

$50M - $100M
302

$100M - $250M
302

$330M
$25M - $50M
302

$100M - $250M
302

$100M - $250M
302

$250M - $500M
302

$81M
$250M - $500M
302

$25M - $50M
302

$1M - $10M
302

Luxembourg, Luxembourg, Luxembourg
$25M - $50M
302

$1B - $10B
302

$1M - $10M
302

$50M - $100M
302

$25M - $50M
302

$50M - $100M
302

$7.8M
$50M - $100M
302

$250M - $500M
302

$10M - $25M
302

Hungary, Budapest, Budapest
$250M - $500M
302

$84M
$250M - $500M
302

$100M - $250M
302

$25M - $50M
302

$100M - $250M
302

$172M
$100M - $250M
302

$500M - $1B
301

$1M
$50M - $100M
301

$100M - $250M
301

Chile, Santiago Metropolitan, Providencia
$1B - $10B
301

$100M - $250M
301

$102M
$250M - $500M
301

$160M
$25M - $50M
301

$10M - $25M
301

$227M
$100M - $250M
301

$10M - $25M
301

$50M - $100M
301

$100M - $250M
301

$5.8M
$25M - $50M
301

$250M - $500M
301

$500M - $1B
301

$100M - $250M
301

$100M - $250M
301

$100M - $250M
301

$50M - $100M
301

$1B - $10B
301

$1.1B
$100M - $250M
301

$10M - $25M
301

$1M - $10M
301

$250M
$100M - $250M
301

Austria, Wien, Vienna
$100M - $250M
300

$163M
$50M - $100M
300

$100M - $250M
300

$139M
$250M - $500M
300

$10M - $25M
300

$48M
$10M - $25M
300

$50M - $100M
300

$50M - $100M
300

$500M - $1B
300

$1M
$10M - $25M
300

$11M
$1M - $10M
300

$25M - $50M
300

<$1M
300

$10M - $25M
300

$25M - $50M
300

$116M
$500M - $1B
300

$1M - $10M
300

$250M - $500M
300

Poland, Masovian, Warsaw
$1M - $10M
300

$12M
$100M - $250M
300

$10B+
300

$1B - $10B
300

$25M - $50M
300

$283M
$100M - $250M
300

$100M - $250M
300

$25M - $50M
300

$100M - $250M
300

$250M - $500M
300

$42M
$50M - $100M
300

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 Fast Lane North America, Fitzrovia and Gresham House.

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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