| UIUC | University of Illinois at Urbana-Champaign |
| USC | University of Southern California |
| ISI | Information Sciences Institute of the University of Southern California Marina del Rey, CA, http://www.isi.edu |
| IL | Illinois Bundesstaat der USA |
| ILLIAC | Illinois Integrator + Automatic Computer |
| ILLIAC | Illinois Institute for Advanced Computing |
| IBC | Illinois Benedictine College [Gutenberg-Projekt] Lisle, http://www.ben.edu |
| BIMA | Berkeley-Illinois-Maryland Array [engl.] Radioteleskop |
| SAS | Southern All Stars |
| CJ | China Northern Airlines [IATA-Airline-Code/ China] [IATA-Airline-Code/ gehört inzwischen zu China Southern: China Southern Airlines Northern Branch] |
| SKA | Southern Kingfish Association |
| SOI | Southern Oscillation Index |
| TF | French Southern Territories |
| ESO | European Southern Observatory Garching, http://www.eso.org |
| 9S | Southern Air [IATA-Airline-Code/ USA] |
| SCCS | Southern California Computer Society |
| A4 | Southern Winds [IATA-Airline-Code/ Argentinien] |
| ESO | European Organisation for Astronomical Research in the Southern Hemisphere Europäische Organisation für astronomische Forschung in der südlichen Hemisphäre |
| 1K | Southern Cross Distribution [IATA-Airline-Code/ Australien] |
| CZ | China Southern Airlines [IATA-Airline-Code/ China] |
| UC | University of CA |
| HU | Hebrew University Jerusalem, [ISR], http://www.huji.ac.il/huji/eng |
| UT | University of Tennessee |
| SU | Stanford University |
| UR | University of Rochester |
| UT | University of Texas |
| UVM | University of Vermont Burlington, [VM], http://www.uvm.edu |
| UW | University of Wisconsin |
| WU | Washington University |
| HU | Hokkaido University Sapporo, [JP], http://www.hokudai.ac.jp/en/index.html |
| HU | Harvard University Cambridge/ Boston, [MA], http://www.harvard.edu |
| HogsU | Hogwarts University vgl. http://hogsu.avidgamers.com/home.html |
| UCSD | University of California at San Diego, USA |
| UCR | University of California at Riverside |
| UCLA | University of California at Los Angeles, USA |
| UCL | University College London |
| UCI | University of California at Irvine |
| UCD | University of California at Davis |
| UCB | University of California at Berkeley, USA |
| PSU | Pennsylvania State University http://www.psu.edu |
| BYU | Brigham Young University |
| UMB | University of Massachusetts at Boston |
| UNC | University of North Carolina, USA |
| WUS | World University Service |
| VGU | Virtual Global University |
| VCU | Virginia Commonwealth University |
| UTNET | University of Texas Network |
| BIU | Bar-Ilan University [engl.] Ramat-Gan, Israel |
| USAN | University Satellite Network |
| UNSW | University of New South Wales Australien |