In 1991, ODOS was chosen as the standard road design software of MEPPPW (Ministry for Environment, Physical Planning and Public Works), DMEO (Directorate of Road Works Studies).
In 1992 (ODOS 4), Template Subassembly design module and complex cross-sections of non-parallel roads were added to the software. During the same year, ODOS adopted the automatic design drawings production AutoCAD environment (with which it is still compatible).
In 1993, the first edition of ODOS CONSTRUCTION, the as-built cross-sections module, was released.
In 1994, ODOS (in the framework of a consultancy contract of ODOS SOFTWARE with MEPPPW for “electronic” motorway design checking) was widely used for checking, review and realignment of problematic sections of Egnatia Motorway and PATHE (Patra – Athens – Thessaloniki – Evzoni) Motorway.
In 1995, ODOS 5 was released in a new structure with a new user interface and new alignment design and typical cross-section design properties.
In the framework of the contract awarded to the company in 1994, ODOS 5 was used as the basis for the HDSDF (Highway Design Submission Digital Format) specifications, approved by DMEO/b/O/60/03-23-95 according to Deputy ministerial decision (MEPPPW).
ODOS Software Ltd. was first established as a private company in 1995.
The same year, ODOS was chosen as the standard highway design software for the Public Works Services of Cyprus.
In 1997, ODOS (being the Consultant of EGNATIA ODOS S.A. according to a call up contract) was used in urgent, rapid realignment of problematic sections of the Egnatia Motorway (Egnatia motorway, a modern closed motorway 680 kilometres long and 24.5 metres wide over the greatest part of its length following a new alignment and running across Epirus and Northern Greece from Igoumenitsa to Evros, the Egnatia Motorway is one of the largest road construction projects in Europe.
Nine major vertical axes connect the motorway with Albania , FYROM, Bulgaria and Turkey. 99 km of tunnels, 80 km of bridges and 50 interchanges carry it across the Greek countryside. EGNATIA ODOS S.A. a Greek state company, operating by private sector economic and financial criteria, under the superintendence of the MEPPPW, was created as a product of discussions between the European Community and the Greek Government to advance the implementation of the the project within the 2nd Community Support Framework).
The same year, ODOS SOFTWARE was awarded a contract with MEPPPW, for supplying several MEPPPW Services (DMEO, EYDE MEDE Special Public Works Service for Western Greece Motorway, PYDE Regional Service of Public Works of Thessaloniki etc.) with ODOS software. Furthermore, ODOS SOFTWARE was also awarded a contract with EYDE PATHE to supply its service with ODOS software. With this contract ODOS was made the standard highway design software for PATHE Motorway projects.
In 1998, ODOS was chosen by J/V ATTIKI ODOS S.A. as the standard software to be used by the J/V construction companies for the design of Stavros – Spata freeway project (Athens ~63km long external ring road, 32 interchanges – the biggest privately financed motorway project ever in Greece). The same year, EGNATIA ODOS S.A. selected ODOS for the supervising and checking of its highway design projects.