Local and regional amateur and semi-amateur championships

From 1953 to 2010, Keravnos was a member of the Athens Football Clubs Association (Greek: Ένωση Ποδοσφαιρικών Σωματείων Αθηνών), or "EPSANA," one of the oldest Greek amateur football club associations, representing teams from Athens Prefecture; the association is a member of the Hellenic Football Federation and organizes a regional football league and cup. It had also mayor wins with Olympiakos and AEK FC, such as Keraynos- AEK 5-0.

Keratea won the EPSA Cup in 1986, and also reached the Cup Final in 1979 and 1983.

In 2003, Keratea joined the newly established Eastern Attica Football Clubs Association (Greek: Ένωση Ποδοσφαιρικών Σωματείων Αν. Αττικής), or "EPSANA."

Keratea won the EPSANA Cup in its first three seasons, in 2003-04, 2004–05, and 2005–06, and then again in 2007-08 and 2012-13.

In 2004-05, Keratea won the national amateur cup, the Greek Football Amateur Cup (Greek: Κύπελλο Ερασιτεχνικών Ομάδων Ελλάδος).^[1]

Professional championships

Keratea won the Delta Ethniki Group 9 championship in 2007-08, earning promotion to Gamma Ethniki, the third tier of Greek football, for the first time in the club's history.

In 2008-09, Keratea's first season in Gamma Ethniki, the team finished in 6th-place in the South Group.