3094160
| Certification Number | 3094160 |
| Company Name | 4 Group (Grouh e Chahar) Consultant Engineers Co. |
| Standard | ISO 9001:2015 |
| Scope of Certificate | Consulting & Engineering Services in the Field of Construction Projects, “Pre-Design, Design, Planning and Supervision” |
| Issue Date/ Surveillance Date | July 2025 |
| Validation Date | July 2026 |
| Status | VALID |