# Nuclear Directory

> A directory of the organizations and facilities in the US nuclear industry, and the agreements between them. Each fact links to the public document it came from.

## What it covers

- 223 companies: reactor developers, fuel and materials, components, waste and decommissioning, power plant owners and operators, power buyers, services, investors, and government and research.
- 131 plants and sites: power plants, test reactors, fuel plants and mines, with their units, owners and operators.
- Relationships between them, stated with fixed verbs: supplies, invests in, offtakes from, owns, operates, vendor for, subsidiary of.

## How facts are sourced

- Every fact on a page carries a numbered source link to the public document it came from, such as an NRC, DOE or EIA record, an SEC filing or a company release.
- A fact with no public source is not published.
- Each page shows when it was last checked.

## Main pages

- [All companies](https://nuclear-directory.org/companies): the full list, with filters for technology and state.
- [Reactor developers](https://nuclear-directory.org/companies?category=reactor-developers)
- [Fuel and materials](https://nuclear-directory.org/companies?category=fuel)
- [Components and manufacturing](https://nuclear-directory.org/companies?category=components)
- [Waste and decommissioning](https://nuclear-directory.org/companies?category=waste-decommissioning)
- [Power plant owners and operators](https://nuclear-directory.org/companies?category=utilities)
- [Plants and sites](https://nuclear-directory.org/companies?category=plants)
- [Power buyers](https://nuclear-directory.org/companies?category=power-buyers)
- [Services and engineering](https://nuclear-directory.org/companies?category=services)
- [Investors](https://nuclear-directory.org/companies?category=investors)
- [Government and research](https://nuclear-directory.org/companies?category=government-research)
- [Sitemap](https://nuclear-directory.org/sitemap.xml): every company and plant page.
- [What's new](https://nuclear-directory.org/updates): newly added facts, deals and news, also as an [Atom feed](https://nuclear-directory.org/updates.atom).
- Company pages are at https://nuclear-directory.org/companies/{slug}, plant pages at https://nuclear-directory.org/plants/{slug}.
- [Our crawler](https://nuclear-directory.org/bot): how the directory collects its sources.
- [Disclaimer](https://nuclear-directory.org/disclaimer) and [privacy](https://nuclear-directory.org/privacy).

## Data and feeds

- [Open dataset](https://nuclear-directory.org/data): every published company, plant and link, with their sources, as CSV and JSON, under CC BY 4.0. Archived on Zenodo: https://doi.org/10.5281/zenodo.23703377
- [What's new](https://nuclear-directory.org/updates.atom): an Atom feed of newly approved facts, deals and news, each with its page and source.
- [Snapshot](https://nuclear-directory.org/api/snapshot.json): a JSON summary of the directory's counts.
- Company and plant pages carry schema.org JSON-LD (Organization, Place) with their sources.

## Citing

- Link the page and name the source it lists. The numbered Sources section at the foot of each page gives the title, the publisher and the link of every source.
- Counts and dates change as records are added, so cite the page rather than a number.
- For the data as a whole, cite the dataset: Nuclear Directory (2026), US nuclear supply chain dataset, https://doi.org/10.5281/zenodo.23703377

## Crawling

- Search engines and AI crawlers are welcome; see [robots.txt](https://nuclear-directory.org/robots.txt). /admin, /corrections, /search, and /design are not for crawling.

## Corrections

- Each page has a "Report a correction" link. Or write to hello@nuclear-directory.org.