S.A. generally designates corporations in various countries, mostly those employing the civil law. Though literally translated as anonymous society, anonymous company, anonymous partnership, or share company, it is known more commonly in English as a public limited company and can be differentiated from partnerships and limited liability companies. In American English they are called joint-stock-companies.
S.A. can be an abbreviation of:
Sociedad Anónima or Sociedad por Acciones in Spanish; variations include "S.A. de C.V.", Sociedad Anónima de Capital Variable and "S.A.B. de C.V.", Sociedad Anónima Bursátil de Capital Variable for publicly traded companies in Mexico
Societat Anònima in Catalan
Sociedade Anónima in Galician and in Portuguese (as well as in Macao SAR of China);
Sociedá Anónima in Asturian and Leonese
Società anonima in Italian
Société anonyme in French (as commonly used in French speaking countries, such as France, Belgium, Luxembourg, Switzerland, Monaco; and in some Francophone countries like Lebanon, Algeria, Tunisia, Morocco, Mauritania and various other African countries)
Spółka akcyjna in Polish
Societate pe acţiuni in Romanian
https://en.wikipedia.org/wiki/S.A._(corporation)