http://agathe.gr/overview/funding_the_excavations.html
Funding the Excavations The excavations began in the 1930's with the substantial support of John D. Rockefeller, who also funded the reconstruction of the Stoa of Attalos (1953-1956) to serve as the site ... Rockefeller, who also funded the reconstruction of the Stoa of Attalos (1953-1956) to serve as the site museum. In recent years the work has been supported by the David and Lucile Packard foundation and the Packard Humanities Institute. ... Kress Foundation, the Ford Foundation, the National Endowment for the Humanities, the Mellon Foundation, Princeton University, Randolph-Macon College, and the Panathenaic Society, among others. ... Should you wish to support any aspect of work at the Agora, please contact: Athenian Agora Excavations The American School of Classical Studies at Athens 54 Souidias GR 106 76 Athens Greece Telephone: +30-10-3310963 Fax: +30 210-331-0964