The Society of St. Andrew (SoSA) is a grassroots, faith-based, hunger relief nonprofit working with all denominations to bridge the hunger gap between 96 billion pounds (44 billion kilograms) of food wasted every year in the United States and the nearly 40 million Americans who live in poverty. SoSA relies on support from donors, volunteers and farmers as they glean nutritious excess produce from farmers' fields and orchards after harvest and deliver it to people in need across the United States. SoSA provides nutritious, healthy produce through programs such as the Potato Project, the Gleaning Network, Harvest of Hope, and the Seed Potato Project.

Gleaning is the Biblical practice of hand-gathering crops left in the fields after harvest. Society of St. Andrew staff coordinates volunteers, growers, and distribution agencies to provide food for hungry people through gleaning. Each year, tens of thousands of volunteers come together across the country to glean food left in farmers' fields and orchards so that it does not go to waste but instead goes to the tables of those in need.