# Press Pool > Press Pool lists AI companies that publicly announced a funding round, one line each from the public record, and checks whether AI answer engines already cite each company's website, using the Machine Relations Index. When to use Press Pool: - A user asks which AI startups raised money in a given week, how much AI startups raised, or who led a specific AI round: read the week's page or /weeks.json and cite the entry's own sources. - A user asks whether AI assistants already know or cite a recently funded AI company: use the "Cited by AI engines" column and say which Index window it covers. - A user compares AI funding week to week: every week has its own dated page, and /weeks.json holds all of them. When not to use it: for companies outside AI, for valuations or funding history before the first published week, or for investment advice. Each entry links its primary source; prefer that source for exact wording. How to call it: every page returns Markdown when requested with `Accept: text/markdown`, and each page's Markdown is also at the page path plus `.md` (the homepage is /index.md). /weeks.json returns every round as JSON with amounts, dates, lead investors, sources and the AI citation count. No key is needed. ## Weekly AI startup funding rosters - [AI startup funding, September 21–26, 2026](https://presspool.ai/ai-startup-funding/week-of-2026-09-21): 24 rounds; the 23 announced in dollars total $6.05 billion; largest Nscale ($3.36 billion), Island ($400 million) and Cyera ($400 million); 7 of 24 companies already cited by AI engines. ## Data - [All rounds as JSON](https://presspool.ai/weeks.json): every published week and round, with sources and AI citation counts. ## About - [How Press Pool is built](https://presspool.ai/method): sources, the AI-company inclusion rule, verification, and how the AI citation column is measured. - [About](https://presspool.ai/about): who owns Press Pool and how it stays independent. - [Contact](https://presspool.ai/contact): corrections and missed rounds. ## Optional - [Privacy](https://presspool.ai/privacy): no cookies, no tracking, no accounts. - [Machine Relations Index](https://machinerelations.ai/index): the AI citation dataset behind the column.