The list of organization acronyms and abbreviations.

All organization related acronyms and abbreviations.

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1,734 entry under topic. ×

157
NASA:
National Aeronautics and Space Administration(Space exploration)
37
NSF:
National Science Foundation(Geological, Geology, Nonprofit)
11
IEEE:
Institute of Electrical and Electronics Engineers(Computer technology)
8
AIAA:
American Institute of Aeronautics and Astronautics
7
ACM:
Association for Computing Machinery(Student organization)
7
NAS:
National Academy of Sciences(Academy, Natural Science, University)
6
NBS:
National Bureau of Standards(Mechanical sealing, Sealing, Environment)
5
SAE:
Society of Automotive Engineers(Books, STANDARDS, Mechanical sealing)
5
ASCE:
American Society of Civil Engineers(Civil Engineering)
2
ADA:
American Diabetes Association(Physiology, Pathology, Health Care)
1
ACLU:
American Civil Liberties Union(Political, MEDIA, Politics)
1
CEC:
Council for Exceptional Children(Educational and health, Ontario)
1
NAACP:
National Association for the Advancement of Colored People
0
ΣΤΔ:
Sigma Tau Delta English Honor Society
0
ΣΑΛ:
Sigma Alpha Lambda(University organization)
0
ΣΔ:
Sigma Delta(University organization, Student organization)
0
ΦΑΔ:
Phi Alpha Delta(University organization, Student organization)
0
ΨΦ:
Psi Phi(University organization, Student organization, United States)
0
ΘΤ:
Theta Tau(University organization, Student organization, United States)
0
ΑΧΣ:
Alpha Chi Sigma(University organization, Student organization)
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APASmart Define. (2018). organization. Retrieved October 1, 2026, from http://smartdefine.org/organization/abbreviations/r/united_states
ChicagoSmart Define. 2018. "organization" http://smartdefine.org/organization/abbreviations/r/united_states (accessed October 1, 2026).
HarvardSmart Define 2018, organization, Smart Define, viewed 1 October, 2026, <http://smartdefine.org/organization/abbreviations/r/united_states>.
MLASmart Define. "organization" 16 February 2018. Web. 1 October 2026. <http://smartdefine.org/organization/abbreviations/r/united_states>