Translations:LimeSurvey PRO vs LimeSurvey CE/5/en
From LimeSurvey Manual
Because LimeSurvey has a General Public License and is an Open-source software, it can be used, modified, and distributed for commercial, private, and educational purposes by anyone, with the exception of the name and logo, which are trademarked. For example, LimeSurvey can easily be used to create and distribute questionnaires for the evaluation of university classes or professors, or it can be installed on a private server for the purpose of conducting online/offline market research for your business.