| S.No. | Short Form | Full Form | Country | Popularity |
| 1 |
IEEE |
Institute of Electrical and Electronics Engineers |
Worldwide |
|
| 2 |
MLA |
Modern Language Association |
United States |
|
| 3 |
ACS |
American Chemical Society |
United States |
|
| 4 |
ISI |
International Statistical Institute |
Worldwide |
|
| 5 |
AFSA |
American Foreign Service Association |
United States |
|
| 6 |
CMS |
Canadian Mathematical Society |
Canada |
|
| 7 |
IPO |
Intellectual Property Owners Association |
United States |
|
| 8 |
ESA |
Ecological Society of America |
United States |
|
| 9 |
IEE |
Institution of Electrical Engineers |
United Kingdom |
|
| 10 |
IES |
Industrial Electronics Society |
Worldwide |
|
| 11 |
IES |
Institution of Engineers Singapore |
Singapore |
|
| 12 |
DPG |
Deutsche Physikalische Gesellschaft (English:German Physical Society) |
Germany |
|
| 13 |
IAG |
International Association of Geodesy |
Worldwide |
|
| 14 |
IAG |
International Association of Geomorphologists |
Worldwide |
|
| 15 |
UPA |
Usability Professionals’ Association |
Worldwide |
|
| 16 |
JPS |
Japan Professional Photographers Society |
Japan |
|
| 17 |
ATA |
American Translators Association |
United States |
|
| 18 |
IETE |
Institution Of Electronics and Telecommunication Engineers |
India |
|
| 19 |
ASM |
American Society for Microbiology |
United States |
|
| 20 |
PPA |
Professional Photographers of America |
Worldwide |
|
| 21 |
AMA |
Ahmedabad Management Association |
India |
|
| 22 |
ASME |
American Society of Mechanical Engineers |
Worldwide |
|
| 23 |
IIE |
Institute of Industrial Engineers |
Worldwide |
|
| 24 |
APRA |
Australasian Performing Right Association |
Australia |
|
| 25 |
APRA |
Association of Professional Researchers for Advancement |
Worldwide |
|
| 26 |
ARPA |
Atlantic Region Philosophers Association |
Canada |
|
| 27 |
ICAI |
Institute of Cost Accountants of India |
India |
|
| 28 |
ICAI |
Institute of Chartered Accountants of India |
India |
|
| 29 |
ICAI |
Institute of Chartered Accountants in Ireland |
Ireland |
|
| 30 |
IAU |
International Astronomical Union |
Worldwide |
|
| 31 |
ICAEW |
Institute of Chartered Accountants in England and Wales |
United Kingdom |
|
| 32 |
Bar |
Body of lawyers |
Worldwide |
|
| 33 |
NCDC |
National Criminal Defense College |
Georgia |
|
| 34 |
TDC |
Type Directors Club |
Worldwide |
|
| 35 |
ICBM |
International Conference on Business and Management |
Worldwide |
|
| 36 |
CSI |
Construction Specifications Institute |
United States |
|
| 37 |
IPMI |
International Precious Metals Institute |
Worldwide |
|
| 38 |
RPS |
Royal Photographic Society |
United Kingdom |
|
| 39 |
RPS |
Royal Pharmaceutical Society |
United Kingdom |
|
| 40 |
RPS |
Royal Philatelic Society |
Worldwide |
|
| 41 |
OSHA |
Oregon Speech-Language-Hearing Association |
United States |
|
| 42 |
COO |
College of Opticians of Ontario |
Canada |
|
| 43 |
ICWAI |
Institute of Cost and Works Accountants of India |
India |
|
| 44 |
MPSE |
Motion Picture Sound Editors |
Worldwide |
|
| 45 |
AAP |
American Academy of Pediatrics |
United States |
|
| 46 |
NFPA |
National Fire Protection Association |
United States |
|
| 47 |
ULFA |
University of Lethbridge Faculty Association |
Canada |
|
| 48 |
VDI |
Verein Deutscher Ingenieure |
Germany |
|
| 49 |
ETT |
Elementary Teachers of Toronto |
Canada |
|
| 50 |
ICC |
International Code Council |
United States |
|
| 51 |
IRS |
Investor Relations Society |
United Kingdom |
|
| 52 |
PAC |
Public Affairs Council |
United States |
|
| 53 |
ADI |
Associazione per il Disegno Industriale (Association for Industrial Design) |
Italy |
|
| 54 |
AOC |
Association of Old Crows |
United States |
|
| 55 |
VBA |
Virginia Bar Association |
United States |
|
| 56 |
BBA |
Boston Bar Association |
United States |
|
| 57 |
BBA |
Baroda Bar Association |
India |
|
| 58 |
ECS |
Electrochemical Society |
United States |
|
| 59 |
IBS |
Institute of Broadcast Sound |
United Kingdom |
|
| 60 |
REC |
Recruitment and Employment Confederation |
United Kingdom |
|
| 61 |
IIM |
Institute of Interim Management |
United Kingdom |
|
| 62 |
CIA |
Canadian Institute of Actuaries |
Canada |
|
| 63 |
ALA |
Association of Professional Architects |
Italy |
|
| 64 |
IED |
Institution of Engineering Designers |
United Kingdom |
|
| 65 |
RNA |
Religion Newswriters Association |
United States |
|
| 66 |
ISES |
International Special Events Society |
Worldwide |
|
| 67 |
PGA |
Pharmacy Guild of Australia |
Australia |
|
| 68 |
ASA |
American Society of Agronomy |
United States |
|
| 69 |
ASA |
Astronomical Society of Australia |
Australia |
|
| 70 |
ACM |
Association for Computing Machinery |
Worldwide |
|
| 71 |
IIBF |
Indian Institute of Banking & Finance |
India |
|
| 72 |
ICMR |
International Center for Materials Research |
United States |
|
| 73 |
IUFRO |
International Union of Forest Research Organizations |
Worldwide |
|
| 74 |
AOAC |
Association of Analytical Communities |
Worldwide |
|
| 75 |
AIIMT |
All India Institute of Medical Technologists |
India |
|
| 76 |
AMD |
Applied Mechanics Division |
Worldwide |
|
| 77 |
PSIS |
Philippine Society for Industrial Security |
Philippines |
|
| 78 |
API |
Association of Physicians of India |
India |
|
| 79 |
SoR |
Society of Radiographers |
United Kingdom |
|
| 80 |
ADCA |
American Dental Coders Association |
United States |
|
| 81 |
CAP |
Canadian Association of Physicists |
Canada |
|
| 82 |
AWG |
Association for Women Geoscientists |
Worldwide |
|
| 83 |
CPMT |
Components, Packaging and Manufacturing Technology |
Worldwide |
|
| 84 |
IAMA |
International Artist Managers’ Association |
Worldwide |
|
| 85 |
IAMA |
International Association for Microanalysis |
Worldwide |
|
| 86 |
NBA |
National Bar Association |
United States |
|
| 87 |
ICJ |
International Commission of Jurists |
Worldwide |
|
| 88 |
AOM |
Academy of Management |
Worldwide |
|
| 89 |
FIPRESCI |
Fédération Internationale de la Presse Cinématographique |
Worldwide |
|
| 90 |
TIN |
Theater Instituut Nederland (Netherlands Theatre Institute) |
Netherlands |
|
| 91 |
AIM |
American Institute of Mathematics |
United States |
|
| 92 |
SAE |
Society of Automotive Engineers |
Worldwide |
|
| 93 |
AAI |
Architectural Association of Ireland |
Ireland |
|
| 94 |
CSA |
Casting Society of America |
Worldwide |
|
| 95 |
ICF |
International Coach Federation |
Worldwide |
|
| 96 |
SMB |
Society for Mathematical Biology |
Worldwide |
|
| 97 |
GMIC |
Green Meeting Industry Council |
Worldwide |
|
| 98 |
ICA |
International Criminologists Association |
Worldwide |
|
| 99 |
EORS |
European Orthopaedic Research Society |
Worldwide |
|
| 100 |
IOT |
Illuminates of Thanateros |
Worldwide |
|
| 101 |
ADC |
Art Directors Club |
Worldwide |
|
| 102 |
IGHC |
IATA Ground Handling Council |
Worldwide |
|
| 103 |
JEDEC |
Joint Electron Device Engineering Council |
Worldwide |
|
| 104 |
IAA |
International Actuarial Association |
Worldwide |
|
| 105 |
IAA |
International Academy of Architecture |
Bulgaria |
|
| 106 |
AAA |
American Anthropological Association |
United States |
|
| 107 |
AAA |
Alberta Association of Architects |
Canada |
|
| 108 |
GARP |
Global Association of Risk Professionals |
Worldwide |
|
| 109 |
ACPI |
Association of Career Professionals International |
Worldwide |
|
| 110 |
CASCA |
Canadian Astronomical Society |
Canada |
|
| 111 |
AWS |
American Welding Society |
United States |
|
| 112 |
MDMA |
Museum Domain Management Association |
Worldwide |
|
| 113 |
MuseDoma |
Museum Domain Management Association |
Worldwide |
|
| 114 |
UNOLS |
University-National Oceanographic Laboratory System |
United States |
|
| 115 |
GCC |
Gauhati Cine Club |
India |
|
| 116 |
OCT |
Ontario College of Teachers |
Canada |
|
| 117 |
CPCB |
Central Plains Center for BioAssessment |
United States |
|
| 118 |
SAG |
Screen Actors Guild |
United States |
|
| 119 |
EGA |
European Golf Association |
Switzerland |
|
| 120 |
BCS |
British Computer Society |
Worldwide |
|
| 121 |
DPS |
Division for Planetary Sciences |
Worldwide |
|
| 122 |
HDI |
Help Desk Institute |
United States |
|
| 123 |
GAA |
Global Accounting Alliance |
Worldwide |
|
| 124 |
SPARK |
Society of Professional Asset-Managers and Record Keepers |
United States |
|
| 125 |
CESS |
Central Eurasian Studies Society |
Worldwide |
|
| 126 |
JIRA |
Japan Industrial Robot Association |
Japan |
|
| 127 |
PII |
Persatuan Insinyur Indonesia (Institution of Engineers Indonesia) |
Indonesia |
|
| 128 |
ISSN |
International Society for the Study of Narrative |
Worldwide |
|
| 129 |
SCRA |
Scottish Countryside Rangers Association |
United Kingdom |
|
| 130 |
ASV |
American Society for Virology |
United States |
|
| 131 |
NIP |
Naval Intelligence Professionals |
United States |
|
| 132 |
KCCL |
King County Collaborative Law |
United States |
|
| 133 |
RESTEC |
Remote Sensing Technology Center of Japan |
Japan |
|
| 134 |
EAC |
Editors’ Association of Canada |
Canada |
|
| 135 |
EAC |
European Arboricultural Council |
Germany |
|
| 136 |
IGS |
Institute of General Semantics |
Worldwide |
|
| 137 |
IGS |
International Glaciological Society |
Worldwide |
|
| 138 |
DBA |
Dallas Bar Association |
United States |
|
| 139 |
IABA |
International Association of Black Actuaries |
United States |
|
| 140 |
AIBA |
All India Biotech Association |
India |
|
| 141 |
AIBA |
All India Bar Association |
India |
|
| 142 |
AMMA |
Association of Malayalam Movie Artists |
India |
|
| 143 |
AMMA |
American Medical Massage Association |
United States |
|
| 144 |
SMPTE |
Society of Motion Picture and Television Engineers |
Worldwide |
|
| 145 |
HDTS |
Home Design Trends Survey |
United States |
|
| 146 |
INA |
Iowa Nurses Association |
United States |
|
| 147 |
INA |
Institute of Nautical Archaeology |
Worldwide |
|
| 148 |
SVP |
Society of Vertebrate Paleontology |
United States |
|
| 149 |
MACTA |
Minnesota Association of Community Telecommunications Administrators |
United States |
|
| 150 |
NACA |
National Association of Consumer Advocates |
United States |
|
| 151 |
NACA |
National Association of Construction Auditors |
United States |
|
| 152 |
ACCA |
Association of Chartered Certified Accountants |
Worldwide |
|
| 153 |
ACCA |
American Corporate Counsel Association |
United States |
|
| 154 |
ACCA |
Air Conditioning Contractors of America |
United States |
|
| 155 |
ACCA |
American Clinical and Climatological Association |
United States |
|
| 156 |
SSN |
Scholars Strategy Network |
United States |
|
| 157 |
MCG |
Meta-Certificate Group |
Worldwide |
|
| 158 |
ANS |
American Nuclear Society |
Worldwide |
|
| 159 |
AKPA |
All Kerala Photographers Association |
India |
|
| 160 |
AKPA |
Association of Korean Physicists in America |
United States |
|
| 161 |
AKPA |
Association of Kenyan Professionals in Atlanta |
United States |
|
| 162 |
NABL |
National Association of Bond Lawyers |
United States |
|
| 163 |
TPA |
Texas Pharmacy Association |
United States |
|
| 164 |
ACUA |
Advisory Council on Underwater Archaeology |
Worldwide |
|
| 165 |
RMS |
Royal Microscopical Society |
United Kingdom |
|
| 166 |
RMS |
Russian Mineralogical Society |
Russian Federation |
|
| 167 |
I3A |
International Imaging Industry Association |
Worldwide |
|
| 168 |
ESAF |
Eastern States Archeological Federation |
Worldwide |
|
| 169 |
AECC |
Accounting Education Change Commission |
United States |
|
| 170 |
SME |
Society of Manufacturing Engineers |
United States |
|
| 171 |
OCR |
Oxford, Cambridge and RSA Examinations |
United Kingdom |
|
| 172 |
IOC |
International Order of Characters |
Worldwide |
|
| 173 |
ECTS |
European Calcified Tissue Society |
European Union |
|
| 174 |
IAS |
Investment Analysts Society |
South Africa |
|
| 175 |
IAS |
Institute of the Aeronautical Sciences |
United States |
|
| 176 |
NCTE |
National Council of Teachers of English |
United States |
|
| 177 |
UTR |
Union of Translators of Russia |
Russian Federation |
|
| 178 |
CORS |
Canadian Operational Research Society |
Canada |
|
| 179 |
CORS |
Canadian Orthopaedic Research Society |
Canada |
|
| 180 |
SSC |
Statistical Society of Canada |
Canada |
|
| 181 |
SSC |
Society of Solicitors in the Supreme Courts of Scotland |
United Kingdom |
|
| 182 |
ACES |
American Copy Editors Society |
United States |
|
| 183 |
ACES |
Asian Chemical Editorial Society |
Worldwide |
|
| 184 |
AAPL |
American Academy of Psychiatry and the Law |
United States |
|
| 185 |
RSS |
Royal Statistical Society |
United Kingdom |
|
| 186 |
NATA |
National Association for Temple Administration |
Worldwide |
|
| 187 |
NATA |
Nebraska Association of Trial Attorneys |
United States |
|
| 188 |
ISAC |
International Society for Advancement of Cytometry |
Worldwide |
|
| 189 |
SI |
Schweizer Informatik Gesellschaft German [Swiss Informatics Society] |
Switzerland |
|