Branch «Engineering center»
| Director | Rafael Nazaryan +374 10 29-49-19 |
| Metrological Directorate | +374 10 29-48-69 |
| Project-research division | +374 10 29-49-34 |
| Directorate of electrochemical protection of gas pipelines | +374 10 28-47-98 |
| Service of energy and heat supply | +374 10 29-47-32 |
| Service of renovation, repair and adjustment of gas equipment | +374 10 29-49-66 |
| Study-technical center | +374 10 29-48-63 |