![Thomas Gerhart Speidel](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>)
Thomas Gerhart Speidel
Chief Executive Officer at
ADS-TEC ENERGY PLC
Net worth: 219 M $ as of 2026-05-30
Profile
Thomas Gerhart Speidel is the founder of ads-tec Energy GmbH, which was founded in 2017.
He is currently the Chief Executive Officer & Director at ADS-TEC Energy Plc, Trustee at Fraunhofer-Institut für Solare Energiesysteme ISE since 2018, and President at Bundesverband Energiespeicher Systeme eV since 2016.
He previously held the position of Chief Executive Officer & Managing Director at ads-tec Holding GmbH.
Mr. Speidel received an undergraduate degree from Universität Stuttgart.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 2026-05-10 | 18,319,391 ( 24.43% ) | 219 M $ | 2026-05-30 |
Thomas Gerhart Speidel active positions
| Companies | Position | Start |
|---|---|---|
| ADS-TEC ENERGY PLC | Chief Executive Officer | - |
ads-tec Energy GmbH
 ads-tec Energy GmbH Electrical ProductsProducer Manufacturing Manufactures energy storage products | Chief Executive Officer | 2016-12-31 |
Fraunhofer-Institut für Solare Energiesysteme ISE
 Fraunhofer-Institut für Solare Energiesysteme ISE Miscellaneous Commercial ServicesCommercial Services Conducts research for energy sustainability purposes | Director/Board Member | 2017-12-31 |
Bundesverband Energiespeicher Systeme eV | President | 2015-12-31 |
Former positions of Thomas Gerhart Speidel
| Companies | Position | End |
|---|---|---|
ads-tec Holding GmbH
 ads-tec Holding GmbH Electrical ProductsProducer Manufacturing Manufactures energy storage products | Chief Executive Officer | - |
Training of Thomas Gerhart Speidel
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
1
1st degree connections
6
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 6 |
|---|---|
Universität Stuttgart
 Universität Stuttgart Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
ads-tec Holding GmbH
ads-tec Holding GmbH Electrical ProductsProducer Manufacturing Manufactures energy storage products | Producer Manufacturing |
Fraunhofer-Institut für Solare Energiesysteme ISE
Fraunhofer-Institut für Solare Energiesysteme ISE Miscellaneous Commercial ServicesCommercial Services Conducts research for energy sustainability purposes | Commercial Services |
ads-tec Energy GmbH
ads-tec Energy GmbH Electrical ProductsProducer Manufacturing Manufactures energy storage products | Producer Manufacturing |
ADS-TEC Energy Plc
 ADS-TEC Energy Plc Electrical ProductsProducer Manufacturing Manufactures and sells EV charging systems infrastructure | Producer Manufacturing |
Bundesverband Energiespeicher Systeme eV |
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