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S.A. (corporation)
IndustryUrban transport
FateAbsorbed in OSY S.A.
PredecessorIEM (Greek: ΗΕΜ)
Area served
Athens, Piraeus, suburbs
RevenueDecrease € 21.031 million (2010)
Increase € -59.182 million (2010)
OwnerGreek Government
Number of employees
1201 (May 2011)
ParentOASA S.A.

I.L.P.A.P. (Greek: Ηλεκτροκίνητα Λεωφορεία Περιοχής Αθηνών – Πειραιώς Η.Λ.Π.Α.Π. - Electric Buses of Athens & Piraeus Area) was a public Greek company, part of the general Athens Mass Transit System, responsible for the operation of the trolleybuses network. ILPAP was founded on December 14, 1970, and since 1998 the company was owned by the Athens Urban Transport Organisation (Organismos Astikon Syngoinonion Athinon - OASA, Greek: Οργανισμός Αστικών Συγκοινωνιών Αθηνών - Ο.Α.Σ.Α.), a public company.


In March 2011, the Greek Government passed Law 3920[1] to merge ILPAP with the bus company ETHEL S.A. The resulting company is named "OSY S.A." (Greek: ΟΣΥ Α.Ε.) and is a subsidiary of OASA S.A. The merger was officially announced on June 10, 2011.[2] While merger at the top management level took place immediately, integration of the former companies at operations and support level proceeds slowly.

The network consists of 22 trolleybus routes which cover 390 kilometers in Athens and Piraeus area. The fleet consists of 366 trolleybuses, made by Neoplan and Van Hool, 51 of which are articulated. 10.6 million kilometers are covered, and 80 million passengers are transported per year. As of May 2011, the company had about 1,200 employees.[citation needed]



  1. ^ Law 3920, Government Gazette issue A-33, 2011-03-03.
  2. ^ Ministerial Decision 28738/2638, Government Gazette issue B-1454, 2011-06-17

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