Consulting Engineering Company

The Consulting Engineering firm KALLIERGOS O.T.M. S.A. has a lead role and participation in all major infrastructure projects in Greece and a strong presence in similar projects aboard.Founded in 2004 via an internal restructuring of the operating since 1965 mother Company O.T.M. Ltd, continues the tradition of offering high quality services to State Authorities, General Contractors and Private Equity Organizations. The firm is based in Athens, Greece, housed in private premises. Combining the vast record of experience and the highly qualified Engineering Staff the company has the capacity and resources to apply state-of-the-Art methods of Structural and Earthquake Engineering for both new and existing infrastructure, industrial and residential facilities to projects of any size and level of complexity.In parallel to its renown design potential the company has extended the range of professional services by implementing state-of-the-art BIM methods in multiple software platforms (TEKLA, Revit, Civil 3D).In all its activities the firm implements Quality Systems conforming to ΕΝ ISO 9001: 2015 certified by TÜV HELLAS (TÜV NORD) S.A. Kalliergos O.T.M. currently employs 17 engineers, 5 CAD-BIM technicians and 4 administrative employees.



Invitation to Annual Meeting

Stone Arched Bridges
  • Koumarianou 6, Athina 114 73, Greece