Possible Clues:

• Doctors Without Borders, e.g., for short
• Surname hidden in 'own goal'
• Private aid grp
• Assn. like Doctors Without Borders
• CARE, for one
• Greenpeace, e.g., in brief
• Engineers Without Borders, for one: Abbr
• Many a charity, for short
• Many a promoter of human rights or voting rights, for short
• First national guard outfit that is not a ruling body