Sonja Wallner

Director of Finance/CFO at TELEKOM AUSTRIA AG

55 year

Communications

Finance

Consumer Services

Profile

Sonja Wallner currently holds multiple positions.
Since 2024, a Member of the Supervisory Board at Kapsch TrafficCom AG.
Since 2023, Chief Financial Officer at Telekom Austria AG.
Since 2015, Chief Financial Officer at A1 Telekom Austria AG.
Holds Member-Supervisory Board roles at A1 Hrvatska doo, A1 Bulgaria EAD, A1 Srbija doo, A1 Slovenija dd, KSV1870 Holding AG, and A1 Open Fiber GmbH.
Holds Member-Management Board roles at Telekom Finanzmanagement GmbH and Mobilkom Beteiligungsgesellschaft mbH.
Education includes undergraduate studies at Vienna University of Economics & Business and an MBA from the University of Bocconi.

Sonja Wallner active positions

Companies	Position	Start
TELEKOM AUSTRIA AG	Director of Finance/CFO	2023-08-31
KAPSCH TRAFFICCOM AG	Director/Board Member	2024-09-23
A1 Telekom Austria AG A1 Telekom Austria AG Major TelecommunicationsCommunications Provides mobile network and broadband services	Director of Finance/CFO	2014-12-31
A1 Bulgaria EAD A1 Bulgaria EAD Wireless TelecommunicationsCommunications Provides wireless telephone services	Director/Board Member	-
A1 Hrvatska doo A1 Hrvatska doo Specialty TelecommunicationsCommunications Provides mobile telecommunications services	Director/Board Member	-
A1 Slovenija dd A1 Slovenija dd Major TelecommunicationsCommunications Provides telecommunication services	Director/Board Member	-
A1 Srbija doo A1 Srbija doo Wireless TelecommunicationsCommunications Provides mobile and optical fiber cable network services	Director/Board Member	-
KSV1870 Holding AG KSV1870 Holding AG Financial ConglomeratesFinance Provides financial services	Director/Board Member	-
Telekom Finanzmanagement GmbH Telekom Finanzmanagement GmbH Finance/Rental/LeasingFinance Acts as a financing subsidiary/Special purpose entity	Corporate Officer/Principal	-

All active positions of Sonja Wallner

Education of Sonja Wallner

Experiences
Positions held

Active

Inactive

Listed companies

Private companies

See the detail of Sonja Wallner's experience

Connections

1st degree connections

1st degree companies

Male

Female

Members of the board

Executives

See the personal network

Linked companies

Private companies	12
Telekom Austria AG Telekom Austria AG Major TelecommunicationsCommunications Provides mobile telecommunications, internet services and wholesales of cell phones	Communications
A1 Hrvatska doo A1 Hrvatska doo Specialty TelecommunicationsCommunications Provides mobile telecommunications services	Communications
A1 Bulgaria EAD A1 Bulgaria EAD Wireless TelecommunicationsCommunications Provides wireless telephone services	Communications
Telekom Finanzmanagement GmbH Telekom Finanzmanagement GmbH Finance/Rental/LeasingFinance Acts as a financing subsidiary/Special purpose entity	Finance
Vienna University of Economics & Business Vienna University of Economics & Business Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
University of Bocconi University of Bocconi Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
Kapsch TrafficCom AG Kapsch TrafficCom AG Other TransportationTransportation Engages in the manufacturing and operation of tolling and traffic management systems	Transportation
Mobilkom Beteiligungsgesellschaft mbH Mobilkom Beteiligungsgesellschaft mbH Financial ConglomeratesFinance Functions as an investment holding company	Finance
A1 Srbija doo A1 Srbija doo Wireless TelecommunicationsCommunications Provides mobile and optical fiber cable network services	Communications
A1 Telekom Austria AG A1 Telekom Austria AG Major TelecommunicationsCommunications Provides mobile network and broadband services	Communications
A1 Slovenija dd A1 Slovenija dd Major TelecommunicationsCommunications Provides telecommunication services	Communications
KSV1870 Holding AG KSV1870 Holding AG Financial ConglomeratesFinance Provides financial services	Finance