Analysis by Optimly for Optimly AI Visibility, in the Optimly AI Brand Index. This Business Profile tracks the Brand Authority Index and supporting AI visibility evidence. Last analyzed August 29, 2026.
The MacArthur Foundation is a philanthropic organization that supports creative individuals and effective institutions committed to building a more just, verdant, and peaceful world. It is known for its 'no-strings-attached' MacArthur Fellowships, recognizing extraordinarily talented individuals across various fields.
The public category test is directional and too small to support a high-confidence rating.
Optimly has not yet published a supported competitor set for MacArthur Foundation.
Brand Authority Index (BAI) tier: Contender (exact score locked for unclaimed brands)
Official website: https://macfound.org/
Last analyzed: August 29, 2026
This Business Profile is published by Optimly in the Optimly AI Brand Index, a public research dataset showing how AI systems describe brands, categories, and competitors. Optimly AI Visibility analyzes sampled buyer-intent responses, cited sources, and public brand information. The Brand Authority Index summarizes answer presence, narrative accuracy, and owned citations where sufficient evidence is available.
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