The Esopus Foundation Ltd. was a nonprofit organization founded in 2003 with the mission of providing an unmediated space through which artists, writers, musicians, and other creative professionals could connect directly with the general public.

The Foundation was primarily devoted to creating 25 issues of the award-winning arts periodical Esopus; publishing a range of books and artists' editions; and mounting more than 100 events and exhibitions.

The legal dissolution of the Foundation occurred in 2025, and this website serves as a comprehensive digital archive of its activities over the course of more than two decades.

The Esopus physical archive was acquired by Colby College in Waterville, Maine, in 2019. It is housed in the Colby College Library's Special Collections Department, and is open to the public by appointment.