'Catholic Culture' has a very useful article about Catholic NGO's - for those interested in working for , or supporting the effort to counter the de-humanizing of the world happening through many UN activities and efforts.
Included in the list are :
Society of Catholic Social Scientists (SOCSS)
Catholic Family and Human Rights Institute (C-FAM)
European Centre for Law and Justice (ECLJ)
Institute for Family Policies European Network (IPF)
International Solidarity and Human Rights Institute (ISHRI)