![Tjark Bartels](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>)
Tjark Bartels has held positions as Chairman-Supervisory Board at Sparkasse Hameln-Weserbergland and Member-Supervisory Board at Institut für Solarenergieforschung GmbH.
| Companies | Position | Start |
|---|---|---|
Institut für Solarenergieforschung GmbH
 Institut für Solarenergieforschung GmbH Miscellaneous Commercial ServicesCommercial Services Engages in research of photovoltaic and solar energy systems | Director/Board Member | - |
Sparkasse Hameln-Weserbergland
 Sparkasse Hameln-Weserbergland Savings BanksFinance Provides banking services | Chairman | - |
Active
Inactive
Listed companies
Private companies
| Private companies | 2 |
|---|---|
Sparkasse Hameln-Weserbergland
Sparkasse Hameln-Weserbergland Savings BanksFinance Provides banking services | Finance |
Institut für Solarenergieforschung GmbH
Institut für Solarenergieforschung GmbH Miscellaneous Commercial ServicesCommercial Services Engages in research of photovoltaic and solar energy systems | Commercial Services |
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