Category:Organizations based in the United States by subject

• Organizations based in the United States by activity‎ (11 C)

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• Organizations based in insular areas of the United States by subject‎ (11 C)

A

• Animal welfare organizations based in the United States‎ (6 C, 92 P)
• Anti-nuclear organizations based in the United States‎ (21 P)
• Archaeological organizations based in the United States‎ (1 C, 33 P)

B

• Biology organizations based in the United States‎ (2 C, 10 P)

C

• Charities based in the United States‎ (14 C, 42 P)
• Child-related organizations in the United States‎ (6 C, 35 P)
• Civic and political organizations of the United States‎ (4 C, 66 P)
• Clubs and societies in the United States‎ (29 C, 205 P)
• Consortia in the United States‎ (2 C, 20 P)
• Consumer organizations in the United States‎ (8 C, 38 P)
• Councils of governments‎ (4 C, 27 P)
• Cultural organizations based in the United States‎ (16 C, 7 P)

D

• Domestic violence-related organizations in the United States‎ (25 P)

E

• Educational organizations based in the United States‎ (31 C, 406 P)
• Environmental organizations based in the United States‎ (23 C, 163 P)

F

• American food and drink organizations‎ (6 C, 21 P)
• Freemasonry in the United States‎ (6 C, 50 P)
• United States friendship associations‎ (1 C, 27 P, 1 F)

G

• Geographic data and information organizations in the United States‎ (2 C, 39 P)
• Government agencies of the United States‎ (14 C, 17 P)
• Guilds in the United States‎ (3 C, 22 P)

H

• History organizations based in the United States‎ (8 C, 95 P)
• Hobbyist organizations based in the United States‎ (1 C, 1 P)
• Housing organizations in the United States‎ (3 C, 37 P)
• Human rights organizations based in the United States‎ (9 C, 171 P)

I

• Indigenous organisations in the United States‎ (1 C, 3 P)
• International organizations based in the United States‎ (9 C, 117 P)

L

• Labor studies organizations based in the United States‎ (4 P)
• Law enforcement non-governmental organizations in the United States‎ (1 C, 31 P)
• Legal organizations based in the United States‎ (4 C, 121 P, 1 F)

M

• Medical and health organizations based in the United States‎ (39 C, 24 P, 2 F)
• Migration-related organizations based in the United States‎ (3 C, 13 P)
• Musical theatre organizations in the United States‎ (1 C, 5 P)

N

• Non-profit organizations based in the United States‎ (27 C, 395 P)
• Nonpartisan organizations in the United States‎ (6 C, 125 P)
• Nonviolence organizations based in the United States‎ (1 C, 22 P)

P

• Paramilitary organizations based in the United States‎ (4 C, 16 P)
• Philanthropic organizations based in the United States‎ (4 C, 80 P)
• Philosophical societies in the United States‎ (2 C, 45 P)

R

• Refugee aid organizations in the United States‎ (38 P)
• Research organizations in the United States‎ (9 C, 75 P)

S

• Scientific organizations based in the United States‎ (14 C, 85 P)
• Skeptic organizations in the United States‎ (28 P)
• Social work organizations in the United States‎ (15 P)
• Sports organizations of the United States‎ (26 C, 39 P)
• Standards organizations in the United States‎ (11 C, 100 P, 1 F)
• Statistical organizations in the United States‎ (4 C, 22 P)

T

• Translation associations of the United States‎ (6 P)