In most countries of Central America, LimeSurvey is a complete success, at least at the public universities (the older, bigger & more important ones). At least what I know is that nobody is thinking in other tool for surveying but LimeSurvey :woohoo:
So, I am going to write here the places where I am completely sure that are using/used LimeSurvey because I saw it with my own eyes, but I am sure it is at other places too.
I know that LS is being used in Costa Rica at:
Universidad Nacional de Costa Rica (UNA)
Universidad de Costa Rica (UCR)
Instituto Tecnológico
Universidad Nacional de Educación a Distancia (UNED)
Consejo Nacional de Rectores (CONARE)
Sistema Nacional de Acreditación de la Educación Superior (SINAES)
Also in El Salvador at:
Universidad de El Salvador (UES)
And at the very council of all public universities of Central America!, its headquarters are located in Guatemala:
Consejo Superior Universitario Centroamericano (CSUCA)
Just to mention it, even it has little related to education, LimeSurvey was also used with very very successful results at the Health Ministry of El Salvador.

Best wishes to everybody!
Your friend, Carlos