ISO, the International Organization for Standardization, is an independent, non-governmental organization, the members of which are the standards organizations of the 162 member countries.
A respondent is someone who answers to a case in court. This term is commonly used in the civil sense, with a person in a similar position in a criminal case being termed the defendant.
The definition of a complainant is a person who has an issue and is making a charge in a court of law. An example of a complainant is the plaintiff. Law a person who files a charge or makes the complaint in court; plaintiff.