Nationaal Kruisleger. They're in the Netherlands, but they work on an international basis. Every single person there is a volunteer - including the people at the very top - because they believe that charity should be done out of care, not for money.
They offer assistance to homeless people, the elderly, abuse victims, people who are ill, people who need advice on debts, they sit with the dying should this be requested, and they send food parcels to the poor in various countries.
Whilst they are a Christian organisation, they help people regardless of faith, gender, sexual orientation, race, nationality, and they never, ever preach whilst giving aid, because they feel it's not right to do so when people are in a vulnerable situation. I respect that.