ENCODIA is registered in the Public Works Registry of the Greek Ministry of Infrastructure and Transportation (No 823) and holds the following licenses for Public Works project categories:
| No | ID | Description | Category |
| 01 | 01 | Spatial and regulatory studies | C |
| 02 | 02 | Urban and street studies | C |
| 03 | 03 | Economic studies | A |
| 04 | 05 | Organizational and operational research studies | A |
| 05 | 06 | Architectural design of buildings | B |
| 06 | 07 | Special architectural design | B |
| 07 | 08 | Structural design | D |
| 08 | 09 | Mechanical and electrical design | C |
| 09 | 10 | Transportation and traffic engineering design | C |
| 10 | 11 | Port engineering design | A |
| 11 | 12 | Means of transportation studies | A |
| 12 | 13 | Hydraulics and hydrology | C |
| 13 | 14 | Energy studies | A |
| 14 | 15 | Industrial studies | A |
| 15 | 16 | Survey engineering | A |
| 16 | 18 | Chemical engineering | A |
| 17 | 19 | Mining studies and surveys | A |
| 18 | 20 | Geological studies | A |
| 19 | 21 | Geotechnical studies and surveys | A |
| 20 | 24 | Forest studies | C |
| 21 | 27 | Environmental studies | B |