Companies using OpenAI
150 companies in the VendorStacks index name OpenAI as part of their ai / ml stack in their public web presence. Every match carries the quoted source row it was extracted from — no inference, no fingerprint guessing.
Sample of companies using OpenAI
| Company | Used for |
|---|---|
| linear.app | AI / ML |
| reserve.com | AI / ML |
| rannkly.com | AI / ML |
| qa.com | AI / ML |
| procore.com | AI / ML |
| plivo.com | AI / ML |
| oneplan.ai | AI / ML |
| myheritage.com | AI / ML |
| monday.com | AI / ML |
| maximizer.com | AI / ML |
Showing 10 of 150. The full list — with evidence, source URLs and refresh timestamps — comes back from one API call.
curl "https://vendorradar-production.up.railway.app /v1/prospect?vendor=OpenAI" \ -H "Authorization: Bearer vr_live_…"
Commonly appears alongside
Vendors that most often show up in the same stacks as OpenAI.
How this is collected
VendorStacks runs a multi-source extraction pipeline over a company's public web presence: crawling, rendering JavaScript pages and PDFs, and matching a deterministic vendor taxonomy against what the company itself publishes. Nothing is inferred from tracking pixels or guessed from job posts — if we say a company uses OpenAI, we can show you the sentence that says so. How it works →
Most recent refresh in this set: 2026-07-27.