Greece, Attica Περιφέρεια Αττικής

Since 2011, the main operator of urban transport in Athens
OSY after the merger of ETHEL and ILPAP in July 5, 2011 began to serve buses and trolleybuses of Athens and Piraeus
osy.gr : About

Until 2020, the Attica KTEL operated only the intercity routes of the Prefecture of Attica and the Athens-Thessaloniki line from 1991-92.
ktelattikis.gr

Operated on regional routes of OASA.

Marousi

Company is engaged in railway transportation, and has a fleet of buses
trainose.gr : About company

Παναγή Τσαλδάρη 54
Βύρωνας, 16232

Κοινή ομάδα για όλους τους τομείς της Αθήνας.
Κωδικός περιοχής: 1
Πινακίδες κυκλοφορίας: YA, YB, YE, YZ, YH, ZZ, ZH, ZK, ZM, IB, IE, IZ, IH, IK, IM, IO, IP, IT, IY, XE, XZ, XH, XP, XT, XY, XX, HB, OA, OB, OE, OZ, OH, OI, OK, OM, ON, OO, OT, OY, OX, XM, ZE, ZI, ZO

Buses serving the internal routes of the Port of Piraeus
olp.gr

Region code: 1
License plates: YI, YK, YM, YN, ZN, ZP, BE, BZ, BH, BZ, TZ (1972-1984 AA, AB, AE)

Interurban buses of Aegina

Interurban buses of Salamina

Operated on regional routes of OASA.

Piraeus

Paiania

YY, YX, ZY, ZX, BK, BM (1972-1974 AZ, AH)

Elefsina

Elefsina

YO, YP, YT, ZT, BN, BP (1972-1984 HY, HX)

ETHEL company was established in July 1994 to unite buses that were previously privatized
ETHEL operated buses that were previously owned by the SEP and EAS.
In 2011 the company became part of OSY

In 1977 the Government took over EKTEL and founded EAS SA.
Until 1986 EAS had 15 groups. After 1989 the stairs were renumbered and 6 groups 1st-5th and 7th emerged.
Due to debts, EAS was disbanded in 1992
Detailed history and information

ASPA was established in 1961. It owned 320 private buses and distributed them to KTEL to operate the routes
In 1977 ASPA buses were nationalized and they were transferred to the state owned company EAS
Detailed history and information

Formed in 1952 as a result of the merger of smaller KTE
Since 1968 - part of EKTEL
191 buses:
1–175 & 219-234
Last bus withdrawn 01.02.1986

Formed in 1952 as a result of the merger of smaller KTE
Since 1968 - part of EKTEL
234 buses:
1–209, 284–307 & 314
Last bus withdrawn 01.12.1984

Formed in 1952 as a result of the merger of smaller KTE
Since 1968 - part of EKTEL
240 buses:
1-223 & 285–301
Last bus withdrawn 01.02.1986

Formed in 1952 as a result of the merger of smaller KTE
Since 1968 - part of EKTEL
247 buses:
1–215 & 283–314
Last bus withdrawn 01.02.1986

Formed in 1952 as a result of the merger of smaller KTE
Operated on the routes of the city of Piraeus
Since 1968 - part of EKTEL
261 buses:
1–246 & 262–276
Last bus withdrawn 01.04.1985

It was formed in 1952 after the division of the 1st KTEL into two due to the extensive geographical area and a large number of routes
Since 1968 - part of EKTEL
205 buses:
1–199, 232–236 & 239
Last bus withdrawn 01.02.1986

11 main KTE and 21 minor was created after the war in 1945, the amount of the route increased.
In 1952, KTE joined five Common Bus Collection Funds (KTEL).

EIS/ISAP had bus lines to Athens and Piraeus in the period 1955-2001 with the Green buses. First Chausson/Saviem, later Mercedes F580-Biamax and finally Volvo SB756-Sarakakis.
It operated until 31.12.2001