Responding to the interdisciplinary nature of OHS, ELINYAE employs specialized and experienced scientists of all relevant specialties, both in its headquarters in Athens, as well as in its regional branches, in Thessaloniki and Ioannina.

Headquarters consist of the Vocational Training Department, the Research and Development Department, the Analysis and Determination Department, General Support Services and the Observatory.

In addition, material resources of the institute include:

• Fully equipped laboratories of Industrial Hygiene & Environment and Biochemistry & Toxicology, as well as local laboratories in regional branches.
• Specific measuring instruments for qualitative and quantitative determination of physical, chemical and other harmful agents in the workplace
• The largest library on OHS topics in Greece.
• 8 specialized and fully equipped training rooms throughout Greece