Thomas Dannenfeldt

Director/Board Member at NOKIA OYJ

Net worth: 136 334 $ as of 31/05/2026

58 year

62 connections

Communications

Electronic Technology

Technology Services

Profile

Thomas Dannenfeldt currently serves as Chairman-Supervisory Board at German Telekom Services Europe GmbH since 2016, Independent Non-Executive Director at Nokia Oyj since 2020, and Independent Director at T-Mobile US, Inc. starting in 2025.
Former positions include Chairman-Supervisory Board at T-Systems International GmbH from 2014 to 2016, Chairman at EE Ltd. from 2014 to 2016, Chairman-Supervisory Board at CECONOMY AG, Director at Virgin Mobile Telecoms Ltd. in 2004, Finance Director at Telekom Deutschland GmbH in 2013, Director at T-Mobile US, Inc. from 2013 to 2018, Chief Financial Officer at Deutsche Telekom AG from 2014 to 2018, Member-Supervisory Board at Buyin SA from 2017 to 2018, and Member-Supervisory Board at BUYIN GmbH from 2014 to 2018.
Education includes undergraduate studies at the University of Trier.

Known holdings in public companies

Company	Date	Number of shares	Valuation	Valuation date
T-MOBILE US, INC. 0%	06/06/2026	727 ( 0% )	136 334 $	31/05/2026

Thomas Dannenfeldt active positions

Companies	Position	Start
NOKIA OYJ	Director/Board Member	27/05/2020
T-MOBILE US, INC.	Director/Board Member	06/06/2025
German Telekom Services Europe GmbH	Chairman	01/01/2016

All active positions of Thomas Dannenfeldt

Former positions of Thomas Dannenfeldt

Companies	Position	End
T-MOBILE US, INC.	Director/Board Member	01/12/2018
DEUTSCHE TELEKOM AG	Director of Finance/CFO	01/01/2018
Buyin SA Buyin SA Real Estate DevelopmentFinance Provides real estate services	Chairman	01/12/2017
Buyin GmbH Buyin GmbH Miscellaneous Commercial ServicesCommercial Services Provides procurement services	Director/Board Member	01/01/2018
T-Systems International GmbH T-Systems International GmbH Information Technology ServicesTechnology Services Provides digital, cloud and security services	Chairman	01/11/2016

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Training of Thomas Dannenfeldt

Experiences
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Linked companies

Private companies	12
Nokia Oyj Nokia Oyj Telecommunications EquipmentElectronic Technology Provides network infrastructure, technology and software services	Electronic Technology
Deutsche Telekom AG Deutsche Telekom AG Major TelecommunicationsCommunications Provides telecommunication services	Communications
Virgin Mobile Telecoms Ltd. Virgin Mobile Telecoms Ltd. Specialty TelecommunicationsCommunications Provides mobile telecommunications services	Communications
T-Systems International GmbH T-Systems International GmbH Information Technology ServicesTechnology Services Provides digital, cloud and security services	Technology Services
University of Trier University of Trier Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
Telekom Deutschland GmbH Telekom Deutschland GmbH Major TelecommunicationsCommunications Provides telephone communication services	Communications
EE Ltd. EE Ltd. Major TelecommunicationsCommunications Provides mobile network and fiber broadband services	Communications
T-Mobile US, Inc. T-Mobile US, Inc. Wireless TelecommunicationsCommunications Provides wireless voice, messaging and data services	Communications
Buyin SA Buyin SA Real Estate DevelopmentFinance Provides real estate services	Finance
German Telekom Services Europe GmbH
Buyin GmbH Buyin GmbH Miscellaneous Commercial ServicesCommercial Services Provides procurement services	Commercial Services
CECONOMY AG CECONOMY AG Department StoresRetail Trade Owns and operates consumer electronics retailers	Retail Trade