Hierarchy classification:

1. top of the aat hierarchies
2. Agents Facet
3. Organizations (hierarchy name)
4. organizations (groups)
5. institutions (organizations)
6. [institutions by activity]

Anotations

Scope note:

Separate, independent, and generally self-sufficient institutions engaging in basic or applied research under contract or as nonprofit organizations. For institutions that support research conducted as part of a larger organization, use "research centers."