With the Athenian politician, Diophantus of Sphettus, as his patron, he became chief commissioner of the important Theoric Fund, which provided free seats at public spectacles.
[1] He used this position to gradually take control of the finances of Athens and is credited with bringing a degree of prosperity not seen in many years.
Eubulus was generally considered a member of the "peace party", in opposition to Demosthenes.
During the Third Sacred War, Eubulus attempted to stop Philip of Macedon intervening in Greek affairs by forming a Common Peace, with the support of Meidias, Aeschines, and Phocion.
[2] When Demosthenes wanted to renew the war after Philip went into Phocis, Eubulus and his supporters argued for peace.