# Method

All 1,723,352 organizations in FundingWatcher's copy of Crunchbase, read 27 September 2026.

| Step | Rows |
|---|---|
| Funding total or at least one funding round | 299,485 |
| In the Artificial Intelligence (AI) category group | 35,772 |
| For-profit | 35,705 |
| Founded 2000 or later | 34,506 |
| Not public (last round not post-IPO equity or debt) | 34,214 |
| Duplicates removed | 34,211 |
| Headquarters country listed | 33,681 |

- Location: the first city and country in the Crunchbase headquarters location.
  San Francisco is the city, not the Bay Area.
- EU: the 27 member states as of September 2026. The UK and Switzerland are not in it.
- Funding: Crunchbase's funding total per company in USD, including debt and secondary
  rounds where recorded. Undisclosed rounds count as zero.
- AI: Crunchbase's category group "Artificial Intelligence (AI)".
- Crunchbase covers US startups more completely than European ones. Counts are what
  Crunchbase lists.

Build script: research/drafts/san-francisco-vs-eu-ai-startups.build.py in the site repo.