| Company Name | Group company | Size | Type | Registration | Certifications | Test types | Tested components | Application | Location |
| Alter Technology | | Large | testhouse | | ISO/IEC 17025 | Electrical Characterisation, Electrical Characterisation | capacitors, inductors, resistors | aerospace, automotive, defence, medical |  |
| Api Technologies | | Large | testhouse | | | | | aerospace, industrial, telecom |  |
| ARC GmbH | | SME | testhouse | | | | | aerospace |  |
| ATN Spain | Alter | Large | testhouse | | | | | | |
| BD SENSORS s.r.o. | | SME | manufacturer |  | ISO/IEC 17025 | Calibration, Reliability & Endurance, Special Tests | filters, pressure sensors | aerospace, industrial |  |
| Ceitec | Group of Brno Czech Universities | Global | university | | | | | industrial | |
| EGGO Space s.r.o. | | SME | testhouse | | ISO/IEC 17025 | Calibration, Electrical Characterisation, Electrical Characterisation, Electrical Characterisation, Industry Standards Evaluation Sequence, Mechanical Characterisation, Reliability & Endurance, Solderability | capacitors, EMC, resistors, sensors | aerospace, automotive, industrial | |
| Hirex Engineering | Alter | Large | testhouse | | | | | |  |
| RHe microsystems | | SME | testhouse | | | | | aerospace | |
| Serma | | SME | testhouse | | | | | aerospace, automotive, industrial, medical, telecom | |
| Six Research Centre | Technical University of Brno | Large | university | | | | | industrial, telecom | |
| TopRel | Alter | Large | testhouse | | | | | |  |
| Trad | | SME | testhouse | | | | | aerospace, defence, industrial | |
| University of West Bohemia | Regional Innovation Centre for Electrical Engineering (RICE) | Large | university | | ISO/IEC 17025, IPC-A-610, IPC-A-600 | Electrical Characterisation, Mechanical Characterisation, Reliability & Endurance, Solderability | capacitors, EMC, filters, inductors, resistors, sensors | automotive, consumer, industrial, telecom | |
| Vigilant Components | | SME | testhouse | | | | | | |
| Vyskov | | SME | testhouse | | | | | aerospace, defence | |
