The nation's eighth-largest nonprofit donated $56.1 million to a series of organizations identified as hate groups from 2015 to 2017, according to a report from Sludge. National Christian Foundation, which identifies itself as the largest Christian grant maker and one of the largest donor-advised funds in the nation, has served as a vehicle for individuals trying to anonymously send money. Donor-advised funds allow individuals sending the tax deductible contributions to remain anonymous from the IRS and instruct where they want the payments to be sent. For those donating via NCF, this meant sending money to 23 organizations that the Southern Poverty Law Center has labeled hate groups. Most of the hate organizations that received money from the NCF opposed LGBT rights. The report also found that the NCF donated to anti-Muslim and anti-immigrant organizations. Organizations receiving the most funds from NCF included the Alliance Defending Freedom, which has advocated for sterilizing transgender individuals, and the Family Research Council, which has advocated conversion therapy. Members of the Family Research Council including Tony Perkins, the organization's president, have sought to link pedophilia and homosexuality. The NCF's website says it has "accepted over $12 billion in contributions and made over $10 billion in giver-recommended grants to more than 55,000 charities."