Here's a few.

  • Vatican Observatory
  • EWTN
  • Crux
  • Archdiocese of Los Angeles
  • Augustine Institute
  • Dicastery for Promoting Integral Human Development
  • Order of Malta Western Association, USA
  • Knights of Columbus
  • Angelicum
  • Diocese of Tucson
  • ACU
  • Archdiocese of Edinburgh
  • CCCB
  • Jesuits
  • Diocese of Brooklyn
  • Pontifical Oriental Institute
  • Acton Institute