| SIR approved testing companies | |
| 2021 | Typ |
| IHC Hytech | All air units + air hoses |
| HCI Belgium | Air hoses |
| Trident Safety Services | Air units till category C + air hoses |
| Unique Systems | All air units + air hoses |
| VTN Oss | All air units + air hoses |
| Z-Air | Air units till category C + air hoses |
