• Organizations based in the United States by city (15 C)
• Organizations based in the United States by county (10 C)
• Organizations based in the United States by membership (8 C)
• Organizations based in the United States by state or territory (76 C)
• Organizations based in the United States by subject (58 C)

.

• Non-profit organizations based in the United States (28 C, 455 P)

*

• Lists of organizations based in the United States (13 C, 38 P)

+

• American organization founders (5 C, 176 P)
• People by organization in the United States (40 C)
• Ships of the United States by organization (18 C)

D

• Defunct organizations based in the United States (25 C, 45 P)

E

• Ethnic organizations based in the United States (11 C, 7 P)

H

• History of organizations based in the United States (15 C, 15 P)

I

• Institutes based in the United States (3 C, 24 P)

L

• American organization logos (3 C, 110 F)

W

• Water organizations in the United States (3 C, 74 P)

Σ

• United States organization stubs (6 C, 772 P)

Ω

• Wikipedia categories named after organizations based in the United States (291 C)

0–9

• 501(c)(4)

A

• Anti-Yellow Dog Club
• Association for the Advancement of Baltic Studies

B

• Bank Secrecy Act Advisory Group

C

• Circle For Negro War Relief
• Citizen grand jury
• Computer Interchange of Museum Information
• Confederated Southern Memorial Association

D

• Dialog (organization)

K

• KC Space Pirates
• Korean National Association

M

• Multi-State Lottery Association

N

• National Coastal Zone Management Program
• National Exchange Carrier Association
• National Fantasy Fan Federation
• National Issues Forums
• Noah's Event Venue

O

• Oversight Board (Meta)

P

• PeaceJam
• Programmers Guild
• PropOrNot

R

• Race Betterment Foundation
• René Guyon Society

S

• The Silurians Press Club

U

• U.S. Center for SafeSport

V

• Vinlanders Social Club
• Vote.org

W

• Wolf Patrol