Certificates of management systems
| Company | Certificate | Status |
|---|---|---|
| 313 SAFETY SECURITY & FIRE SRL | ISO 14001:2004 | expired |
| 313 SAFETY SECURITY & FIRE SRL | ISO 9001:2008 | expired |
| 3D Metal EOOD | ISO 50001:2011 | valid |
| 3D PLAN SRL | ISO 9001:2008 | withdrawn |
| 3D s.r.o. | ISO 9001:2015 | valid |
| 3E RESOURCES & TRADING SERVICES | BS OHSAS 18001:2007 | withdrawn |
| 3N Trading, s.r.o. | ISO 9001:2008 | withdrawn |
| 3p Kaliafas Pourdalas gp | FSSC 22000:4 | valid |
| 48 ELEKTRIK AYDINLATMA VE AKSESUAR TICARET SANAYI VE LIMITED ŞIRKETI | ISO 9001:2008 | expired |
| 4D SISTEM TICARET LIMITED ŞIRKETI | ISO 9001:2008 | withdrawn |
| 4i ODC Private Limited | ISO 9001:2008 | withdrawn |
| 4M SOLUTIONS | ISO 9001:2000 | withdrawn |
| 4M SYSTEMS s.r.o. | AQAP 2110, Edition D:1 | valid |
| 4S ENTERPRISE PTE. LTD. | ISO 45001:2018 | valid |
| 60-MAX, s.r.o. | ISO 9001:2008 | expired |
| 60-MAX, s.r.o. | ISO 14001:2004 | expired |
| 625 Rena Agents | ISO 14001:2004 | expired |
| 625 Rena Agents | ISO 9001:2008 | expired |
| 631 Rena Agents | ISO 14001:2004 | withdrawn |
| 631 Rena Agents | ISO 9001:2008 | withdrawn |