Thomas Sieber

Chairman at

Limmex AG

64 year

73 connections

Technology Services

Electronic Technology

Utilities

Profile

Currently, Thomas Sieber is Chairman-Supervisory Board at Limmex AG, Director at GARAIO AG since 2013, and Independent Director at HCL Technologies Ltd, Helsingin sivuliike.
Formerly, Mr. Sieber was Chairman-Supervisory Board at Salt Mobile AG from 2013 to 2015, Chairman at Axpo Holding AG from 2016 to 2026, Independent Non-Executive Director at HCL Technologies Ltd. from 2015 to 2025, General Manager-Small & Medium Enterprise at HP, Inc., Member-Supervisory Board at RTX A, Faculty Member at the University of St. Gallen in 2002, and Executive Vice President-Sales at Fsas Technologies GmbH.
Education includes a graduate degree from the University of St. Gallen conferred in 1987.

Thomas Sieber active positions

Companies	Position	Start
GARAIO AG GARAIO AG Information Technology ServicesTechnology Services Provides software development and digital transformation services	Director/Board Member	01/03/2013
Limmex AG	Chairman	-
HCL Technologies Ltd, Helsingin sivuliike HCL Technologies Ltd, Helsingin sivuliike HCL Technologies Ltd, Helsingin sivuliike, is an IT services and Finnish technology company that delivers digital transformation solutions across industries such as manufacturing, technology, telecom, retail, life sciences, healthcare, and financial services. The company is based in Espoo, Finland. The company provides services including cloud modernization, AI and generative AI, cybersecurity, digital workplace services, engineering and R&D, enterprise applications, and supply chain management. It supports clients with digital business solutions, cybersecurity enhancements, and cloud infrastructure modernization, and integrates environmental, social, and governance (ESG) principles into its business strategy. The company was founded in 2008. The CEO is Chinnaswamy Vijayakumar.	Director/Board Member	-

All active positions of Thomas Sieber

Former positions of Thomas Sieber

Companies	Position	End
Axpo Holding AG Axpo Holding AG Alternative Power GenerationUtilities Engages in production and trading of solar & wind energy	Chief Executive Officer	-
HCL TECHNOLOGIES LIMITED	Director/Board Member	26/08/2025
Salt Mobile AG Salt Mobile AG Wireless TelecommunicationsCommunications Provides wireless telecommunications services	Chief Executive Officer	31/12/2015
University of St. Gallen University of St. Gallen Other Consumer ServicesConsumer Services Functions as a College/University	Corporate Officer/Principal	01/01/2002
HP INC.	Corporate Officer/Principal	01/01/2001

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Linked companies

Private companies	10
HP, Inc. HP, Inc. Information Technology ServicesTechnology Services Operates as a technology company that sells laptops, pc desktops, printers and accessories through online	Technology Services
HCL Technologies Ltd. HCL Technologies Ltd. Information Technology ServicesTechnology Services Operates as a global information technology services company that provides software, IT infrastructure and business process outsourcing services	Technology Services
RTX A/S RTX A/S Telecommunications EquipmentElectronic Technology Designs and manufactures wireless short-range radio systems and products	Electronic Technology
Axpo Holding AG Axpo Holding AG Alternative Power GenerationUtilities Engages in production and trading of solar & wind energy	Utilities
Salt Mobile AG Salt Mobile AG Wireless TelecommunicationsCommunications Provides wireless telecommunications services	Communications
University of St. Gallen University of St. Gallen Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
Fujitsu Technology Solutions GmbH Fujitsu Technology Solutions GmbH Information Technology ServicesTechnology Services Provides IT, AI, blockchain and security services	Technology Services
GARAIO AG GARAIO AG Information Technology ServicesTechnology Services Provides software development and digital transformation services	Technology Services
Limmex AG
HCL Technologies Ltd, Helsingin sivuliike HCL Technologies Ltd, Helsingin sivuliike HCL Technologies Ltd, Helsingin sivuliike, is an IT services and Finnish technology company that delivers digital transformation solutions across industries such as manufacturing, technology, telecom, retail, life sciences, healthcare, and financial services. The company is based in Espoo, Finland. The company provides services including cloud modernization, AI and generative AI, cybersecurity, digital workplace services, engineering and R&D, enterprise applications, and supply chain management. It supports clients with digital business solutions, cybersecurity enhancements, and cloud infrastructure modernization, and integrates environmental, social, and governance (ESG) principles into its business strategy. The company was founded in 2008. The CEO is Chinnaswamy Vijayakumar.