Over his lifetime, the Edhi Foundation expanded, backed entirely by private donations, which included establishing a network of 1,800 ambulances. By the time of his death, Edhi was registered as a parent or guardian of nearly 20,000 adopted children of whom he was an active caretaker. He is known amongst Pakistanis as the "Angel of Mercy" and is considered to be Pakistan's most respected and legendary figure. In 2013, "The Huffington Post" claimed that he might be "the world's greatest living humanitarian".