Who uses ChatGPT?
Versatile AI chatbot for conversation and tasks chatgpt.com
40
companies use ChatGPT
40 companies use ChatGPT. 10% are in DevTools & Infrastructure. Confirmed or observed customers include Bill & Melinda Gates foundation, Harvard, and Walmart.Latest check Oct 8, 2026: 7 of 40 companies checked, from 8 public sources.
- Category
- Foundation Models (LLMs)
- Customers by proof
- 0 confirmed, 35 observed, 5 signals
- Top industry
- DevTools & Infrastructure, 10% of customers
- Pricing
- Free: $0 / month; Go: $8 / month; Plus: $20 / month; Pro: $100 / monthSource: chatgpt.com, checked Oct 4, 2026
- Most similar
- Claude, 10 shared customers
- Website
- chatgpt.com
What ChatGPT does
ChatGPT is OpenAI's conversational AI assistant that can answer questions, write content, analyze data, and help with coding. It's one of the most widely used AI chatbots for both personal and professional use.
Written by usedby from chatgpt.com.
Main features
Common uses
40 companies use ChatGPT
Every company below links to the public page that shows it uses ChatGPT. Open a row to see the dated capture.
Customers over time: appears once we have six months of archived captures.
| Company | Industry | First public proof | Proof |
|---|---|---|---|
 Bill & Melinda Gates foundation | Non-profit & NGO | — | |
 Harvard | Schools & Universities | — | |
 Walmart | Retail | — | |
 Bain & Company | Management Consulting | — | |
 BCG | Management Consulting | — | |
 Cisco | Telecommunications | — | |
 Moderna | Biotech & Pharma | — | |
 Morgan Stanley | Investment & VC | — | |
 PayPal | Fintech & Payments | — | |
 PWC | Accounting & Audit | — |
Is ChatGPT right for your company?
See what companies in your industry use, from the companies we track. Pick your industry.
Of the 126 DevTools & Infrastructure companies on usedby, 3 are listed as ChatGPT customers. 9 use only another Foundation Models (LLMs) tool.
- ChatGPT only, 2%
- ChatGPT and another tool in Foundation Models (LLMs), 1%
- Another tool in Foundation Models (LLMs) only, 7%
- No Foundation Models (LLMs) tool we can see, 90%
These are companies usedby tracks because a public page names them, often ChatGPT's own customer page. It is not a market share. A company counts once, whatever the number of tools it uses.
What customers report
Results as published by ChatGPT and its customers. Each one links to its dated source. We quote, we do not score.
Before you buy ChatGPT
What ChatGPT publishes on the points buyers check first, each with its source and check date.
| Free trial | Free trial or free plan available. | chatgpt.com, checked Oct 4, 2026 |
|---|---|---|
| Integrations | Gmail, Remote Desktop Commander, Google Drive, GitHub, Outlook Email, Slack, Notion, Google Calendar, Canva, Dropbox, Shopify, Figma | chatgpt.com, checked Oct 4, 2026 |
| Pricing | Free: $0 / month; Go: $8 / month; Plus: $20 / month; Pro: $100 / month | chatgpt.com, checked Oct 4, 2026 |
Questions to ask in your demo
- Which of your customers look like us, by industry and size?
- What does a pilot cost, and what decides the move to a full contract?
- Where is our data stored, who can access it, and is it used to train models?
- How does ChatGPT work with the tools we already use?
ChatGPT alternatives
Tools compared with ChatGPT most often, with the customers they share.
| Tool | Customers | Shared with ChatGPT | Compare |
|---|---|---|---|
 Claude73 customers, 10 shared | 73 | 10 | ChatGPT vs Claude |
 Listen40 customers, 3 shared | 40 | 3 | ChatGPT vs Listen |
 Perplexity26 customers, 1 shared | 26 | 1 | ChatGPT vs Perplexity |
 Mistral37 customers, 1 shared | 37 | 1 | ChatGPT vs Mistral |
 Cohere23 customers, 2 shared | 23 | 2 | ChatGPT vs Cohere |
Questions about ChatGPT
Who uses ChatGPT?
40 companies use ChatGPT, including Bill & Melinda Gates foundation, Harvard, and Walmart.
Which industries use ChatGPT?
The industries with the most ChatGPT customers are DevTools & Infrastructure (4), Banking & Mortgages (3), and Fintech & Payments (3).
What are the alternatives to ChatGPT?
The tools compared with ChatGPT most often are Claude (73 customers, 10 shared), Listen (40 customers, 3 shared), Perplexity (26 customers, 1 shared), and Mistral (37 customers, 1 shared). See all ChatGPT alternatives.
How does usedby know who uses ChatGPT?
Each company is linked to a public page that names it: ChatGPT's customer page, a published case study, a press release or a job post. We save each page with a dated capture and check it again on each run. A company leaves the list only after three checks in a row that no longer find it, and at least 14 days after it was last seen. A company with a published case study or quote is never removed automatically.
What do confirmed, observed and signal mean?
Confirmed (0): a case study, a named quote or a press release. Observed (35): ChatGPT shows the company on its own pages, for example a logo wall. Signal (5): a job post shows the company’s employees use ChatGPT, the weakest proof. Every level counts as a customer, and each line shows its level.
How current is this list?
The most recent check was on October 8, 2026, and 7 of 40 companies on this list have been checked so far. A company leaves the list only after three checks in a row that no longer find it, and at least 14 days after it was last seen. A company with a published case study or quote is never removed automatically.
Changes and sources
New customers
We have not started tracking changes for this tool yet.