What does ISU stand for?

MLA style: "ISU." Acronym Finder . 2012. AcronymFinder.com 30 May. 2012 http://www.acronymfinder.com/Iowa-Southern-Utilities-(ISU).html
Chicago style: Acronym Finder . S.v. "ISU." Retrieved May 30 2012 from http://www.acronymfinder.com/Iowa-Southern-Utilities-(ISU).html
APA style: ISU. (n.d.) Acronym Finder. (2012). Retrieved May 30 2012 from http://www.acronymfinder.com/Iowa-Southern-Utilities-(ISU).html

Iowa Southern Utilities

This definition appears very rarely and is found in the following Acronym Finder categories:

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International Skating Union (Switzerland) International Space University International Stereoscopic Union International Survey Unit (PricewaterhouseCoopers; UK) International System Unit Internationale Socialisters Ungdom (Danish Political Movement) Internet System Update Investigative Services Unit Investigative Support Unit Involving Service Users (UK)		Iowa State University Iridium Subscriber Unit Irkutsk State University (Russia) Isabela State University (Philippines) Issue International Skating Union of America (US and Canada) Imager of Sprites and Upper Atmospheric Lightning Indiana State University Anthropology Laboratory Iowa State University Archaeological Laboratory (Ames, IA) Iowa State University Crew (Ames, IA)

Samples in periodicals archive:

Trees Forever raised contributions from Iowa Southern Utilities Company (now IES) and the American River Transportation Company.