![Constantin Birnstiel](data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="%231b1b1b" class="bi bi-person-fill" viewBox="0 0 16 16"><path d="M3 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1zm5-6a3 3 0 1 0 0-6 3 3 0 0 0 0 6"/></svg>)
Constantin Birnstiel formerly worked at Merck KGaA, as Head-Group Communications, Siemens AG, as Head-Corporate Communications & Media Relations, Siemens Pakistan Engineering Co. Ltd., as Head-Corporate Communications & Media Relations, OSRAM Licht AG, as Vice President-Corporate Communications, and Uniper SE, as Executive VP-Communications & Investor Relations.
| Sociétés | Poste | Fin |
|---|---|---|
| MERCK KGAA | Public Communications Contact | 06/08/2020 |
| UNIPER SE | Investor Relations Contact | - |
| SIEMENS (PAKISTAN) ENGINEERING CO. LTD. | Public Communications Contact | - |
| OSRAM LICHT AG | Public Communications Contact | - |
| SIEMENS AG | Public Communications Contact | - |
Actives
Inactives
Sociétés cotées
Entreprise privées
| Entreprise privées | 5 |
|---|---|
Merck KGaA
 Merck KGaA Pharmaceuticals: MajorHealth Technology Engages in the manufacturing of pharmaceutical and chemical products | Health Technology |
Siemens AG
 Siemens AG Industrial MachineryProducer Manufacturing Develops, manufactures and sells diagnostic and therapeutic products & automation systems | Producer Manufacturing |
Siemens Pakistan Engineering Co. Ltd.
 Siemens Pakistan Engineering Co. Ltd. Electrical ProductsProducer Manufacturing Provides energy, industrial, infrastructure & cities and healthcare solutions | Producer Manufacturing |
OSRAM Licht AG
 OSRAM Licht AG Auto Parts: OEMProducer Manufacturing Develops and produces lamps, light modules and sensors to the automotive industry | Producer Manufacturing |
Uniper SE
 Uniper SE Electric UtilitiesUtilities Engages in power generation and commodity trading | Utilities |
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