![]() Triorail Bahnfunk Triorail Bahnfunk is a company that manufactures and supplies global systems for mobile communications – railway (GSM-R) products. | ![]() AZD Praha AŽD Praha is a producer and supplier of control and signaling systems for rail and road transportation. | ![]() Savronik Savronik is a company that produces systems and products in the fields of communication, system integration, and power control. | ![]() Shanghai TieDa Telecom Technology Shanghai TieDa Telecom Technology (上海铁大电信科技股份有限公司) is a company that manufactures and sells rail and subway signal system equipment. | ||
Founding Date | Founding Date 2002 | Founding Date 1954 | Founding Date 1986 | Founding Date 1992 | Founding Date 1983 |
Type | Type Private | Type Private | Type Subsidiary | Type Private | Type Private |
Tags | |||||
Locations | Locations Munich, DE HQ | Locations Eskişehir, TR HQ Ankara, TR Eskişehir, TR Eskişehir, TR İstanbul, TR | Locations HQ | Locations Lake Oswego, US HQ | |
Employees | Employees 35 | Employees 5062% increase | Employees 3571% increase | Employees N/A | Employees 572% decrease |
Operating ⚠ | |||||
Trademarks | Trademarks 4 (Jan, 2024) | Trademarks N/A | Trademarks 3 (Jun, 2023) | Trademarks N/A | Trademarks N/A |

AŽD Praha is a producer and supplier of control and signaling systems for rail and road transportation.
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Savronik is a company that produces systems and products in the fields of communication, system integration, and power control.
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Shanghai TieDa Telecom Technology (上海铁大电信科技股份有限公司) is a company that manufactures and sells rail and subway signal system equipment.
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Sonetics provides team communication systems for challenging work environments.
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