OEZ
OEZ is a Czech manufacturer specializing in low-voltage electrical protection devices and power distribution equipment. The company operates as a subsidiary of the Siemens Group and maintains its primary production facilities and headquarters in Letohrad, Czech Republic.
Brand Identity Data
HQ Country
Czechia
HQ City
Letohrad
Founded
1941
EU Headquartered
Yes
EU Manufactured
Yes
Ownership Type
private
Stock Exchange
Private
Tax Domicile
CZ
Ultimate Parent
Siemens AG
B Corp Certified
No
Repair / Recycling
Yes ✓
Ethical Certifications
ISO 9001, ISO 14001, ISO 45001
Verified on October 15, 2026
Corporate Lineage
1941
Company founding
OEZ was founded in Letohrad, Czechoslovakia as an electrical engineering company.
2007
Siemens acquisition
The company was fully integrated into the Siemens Group.