The company OR.KA. S.A. constructs public and private construction projects.
It has been active in the construction sector in a wide range of technical projects, such as building construction, road construction, electromechanical, hydraulic, industrial and energy projects, greening, water and wastewater treatment, electronic installations, etc. .

The company OR.KA. S.A. is registered in the Register of Contracting Enterprises (MEEP) of the Ministry of Infrastructure (YME), with registration number 21733 and has a 4th class contracting degree for the project categories: building, road construction, hydraulics, electromechanical, industrial – energy, port, green, water and sewage treatment and electronic equipment, which allows it to claim significant budget projects and which certifies her long-term multifaceted experience.

The company OR.KA. S.A. is certified according to ELOT EN ISO 9001:2015 (QUALITY MANAGEMENT SYSTEM), ELOT EN ISO 14001:2015 (ENVIRONMENTAL MANAGEMENT SYSTEM) and ISO 45001:2018/ELOT (WORK HEALTH & SAFETY MANAGEMENT SYSTEM) and strictly complies with the obligations from the provisions of environmental, social security and labor legislation, established by Union law, national law, collective agreements, or international provisions of environmental, social and labor law.

The company OR.KA. S.A. has experienced executives and scientific staff, including civil engineers, electrical engineers, mechanical engineers, chemical engineers, economists, and craftsmen of various specialties.

The flexible organizational structure of the company OR.KA. S.A., its experienced management force and the privately owned necessary mechanical equipment, allows OR.KA S.A. to be active successfully in the following project areas:

  • Building constructions
  • Road construction
  • Utility networks
  • Renovations of common areas
  • Electromechanical installations
  • Sports projects
  • Branches of banks and public utility organizations
  • Street lighting
  • Special projects
  • Reconstructions, restorations, arrangements, renovations



We realize projects for larger companies domiciled and operating in Greece and in particular in the fields of electrical installations as well as Hydraulic and air conditioning heating and cooling installations


Consistently and responsibly assume public and private projects up to the amount of 10.000.000 € budget


The flexible organizational structure of the company, experienced executives and the proprietary necessary mechanical equipment, allows OR.KA. ATEE to operate successfully on the peculiarities presented by these areas of the construction industry

electrical installation

Electrical installations

Plumbing and air conditioning heating and cooling installations

engineers objects

Other construction installation

OHSAS 18001
ISO 9001
ISO 14001