Egnatia Odos, the Greek government owned and majority staffed client organisation, has been making a significant impact on Greek construction since it was created by the public works ministry and KBR in 1995.
Its work has stimulated major and ongoing revisions to the country's sometimes Byzantine public works procurement law, and design standards for the country have also been modernised with the basic framework based on the design guidelines set up for the project's own needs.
The capacities of the organisation have also been applied elsewhere in the country.
After severe rainfall and flood damage in the Cyclades islands in winter 2002-3, Egnatia Odos was asked to co-ordinate some 50M (£34M) of road repair and upgrading work, with another 25M (£17M) following this year. It required legal changes to its charter to do it.
'I think we had established a reputation as a company which gets things done, ' says Mike Agius, project manager for the most westerly of the three construction regions.
Current thinking is that the company will continue as a project manager after the completion of the highway, consolidating its skills and experience to take on projects throughout the region, particularly in the Balkans and former eastern European countries.