 The Buck Institute is one of eleven centers for aging research of the Glenn Foundation for Medical Research.The institute, a nonprofit organization located in Novato, California, began its research program in 1999, making it the world's first institute founded primarily to research aging.It is named for Marin County philanthropists Leonard and Beryl Hamilton Buck, whose estate funded the endowment that helped establish the institute, and the Buck Trust currently contributes approximately $6 million annually to support the institute's work.