Changes in management at TII Group
0After nearly 9 years with the TII Group, Dr. Gerald Karch has decided to step down for personal reasons and to focus on the next chapter of his personal journey.
With the appointment of Dr. Gregor Wiche as successor, the TII Group is setting the course for a further successful future: effective 1 December 2026, Dr. Gregor Wiche will join the Management Board of the TII Group as Managing Director and Spokesman of the Board. Together with Filippo Baldassari, who has served as Managing Director since January 2025, Dr. Gregor Wiche will form the group’s new management team.
Since 2018, Dr. Gerald Karch has successfully led the restructuring and strategic development of the TII Group. During his tenure, the Group doubled its revenue, strengthened its financial stability and made substantial investments in both its product portfolio and production facilities. Building on this foundation, substantial investments are currently being implemented and will continue in the coming years. As a result, the TII Group is well positioned for the future and ready to build on its strengths, unlock new opportunities and further expand its market and technology leadership. “Dr. Gerald Karch played a decisive role in transforming and strengthening the TII Group. We sincerely thank him for his dedication and wish him all the best for his future. With Dr. Gregor Wiche joining the Management Board, the TII Group is establishing a strong and complementary management team that will build on the strategic initiatives already underway and further advance the Group’s long-term development,” says Susanne Rettenmaier, Shareholder member of the family business founded by her father Otto Rettenmaier.
Dr. Gregor Wiche brings extensive and successful leadership experience to TII. He held executive roles in Asia and Europe across different functional areas in industries ranging from paper machinery across rail to commercial vehicle components. He joins the TII Group from Driventic GmbH, which he led and successfully carved out into a stand-alone entity within the Voith Group over the last three years.
“We are very pleased to welcome Dr. Gregor Wiche and look forward to working with him and Filippo Baldassari as they continue to drive the Group’s strategic development,” says Susanne Rettenmaier.
The change in the management board of the TII Group marks the conclusion of an important chapter in the development of the TII Group. The transition has been prepared well in advance to ensure stability and continuity for customers, partners and employees.
“Over the past years, we have worked together to strengthen the TII Group, sharpen its strategic focus and build a solid foundation for the future. I am particularly proud of what the entire TII team has achieved together. With a carefully prepared transition, I feel that the time is right for me to hand over my responsibilities to the new management team,” says Dr. Gerald Karch.
The new management team will accelerate innovation, strengthen customer proximity and advance operational excellence across the Group. Its agenda also includes the continued expansion of TII Group’s market and technology leadership and the implementation of ongoing investments in products and production facilities.
As Managing Director and Spokesman of the Board of the TII Group, Dr. Gregor Wiche will oversee the functions of Operations, Engineering, Human Resources, Finance and Controlling. Filippo Baldassari will continue to lead the market-facing functions of Sales, Service, Marketing and Business Development.
“TII Group has a strong market position, outstanding technological capabilities and a clear ambition for the future. I look forward to jointly working with Filippo Baldassari and the whole TII community around the world to increase operational excellence, turn innovation into value for our customers and drive TII to the next level,” says Dr. Gregor Wiche.
In parallel with the management transition, the shareholder family has decided to establish a new holding structure. The new top holding company, TII Group GmbH & Co. KG, will also be managed by Dr. Gregor Wiche and Filippo Baldassari as Managing Directors.
As part of this organizational development, Susanne Rettenmaier will step down from her previous role as managing director of the family holding and join the Supervisory Board. In this role, Susanne Rettenmaier will continue to uphold the interests and values of the Otto Rettenmaier family together with the family owners and the Supervisory Board members and ensure a close and lasting connection between the shareholder family and the TII Group.
After nearly 9 years with the TII Group, Dr. Gerald Karch has decided to step down for personal reasons and to focus on the next chapter of his personal journey.
With the appointment of Dr. Gregor Wiche as successor, the TII Group is setting the course for a further successful future: effective 1 December 2026, Dr. Gregor Wiche will join the Management Board of the TII Group as Managing Director and Spokesman of the Board. Together with Filippo Baldassari, who has served as Managing Director since January 2025, Dr. Gregor Wiche will form the group’s new management team.
Since 2018, Dr. Gerald Karch has successfully led the restructuring and strategic development of the TII Group. During his tenure, the Group doubled its revenue, strengthened its financial stability and made substantial investments in both its product portfolio and production facilities. Building on this foundation, substantial investments are currently being implemented and will continue in the coming years. As a result, the TII Group is well positioned for the future and ready to build on its strengths, unlock new opportunities and further expand its market and technology leadership. “Dr. Gerald Karch played a decisive role in transforming and strengthening the TII Group. We sincerely thank him for his dedication and wish him all the best for his future. With Dr. Gregor Wiche joining the Management Board, the TII Group is establishing a strong and complementary management team that will build on the strategic initiatives already underway and further advance the Group’s long-term development,” says Susanne Rettenmaier, Shareholder member of the family business founded by her father Otto Rettenmaier.
Dr. Gregor Wiche brings extensive and successful leadership experience to TII. He held executive roles in Asia and Europe across different functional areas in industries ranging from paper machinery across rail to commercial vehicle components. He joins the TII Group from Driventic GmbH, which he led and successfully carved out into a stand-alone entity within the Voith Group over the last three years.
“We are very pleased to welcome Dr. Gregor Wiche and look forward to working with him and Filippo Baldassari as they continue to drive the Group’s strategic development,” says Susanne Rettenmaier.
The change in the management board of the TII Group marks the conclusion of an important chapter in the development of the TII Group. The transition has been prepared well in advance to ensure stability and continuity for customers, partners and employees.
“Over the past years, we have worked together to strengthen the TII Group, sharpen its strategic focus and build a solid foundation for the future. I am particularly proud of what the entire TII team has achieved together. With a carefully prepared transition, I feel that the time is right for me to hand over my responsibilities to the new management team,” says Dr. Gerald Karch.
The new management team will accelerate innovation, strengthen customer proximity and advance operational excellence across the Group. Its agenda also includes the continued expansion of TII Group’s market and technology leadership and the implementation of ongoing investments in products and production facilities.
As Managing Director and Spokesman of the Board of the TII Group, Dr. Gregor Wiche will oversee the functions of Operations, Engineering, Human Resources, Finance and Controlling. Filippo Baldassari will continue to lead the market-facing functions of Sales, Service, Marketing and Business Development.
“TII Group has a strong market position, outstanding technological capabilities and a clear ambition for the future. I look forward to jointly working with Filippo Baldassari and the whole TII community around the world to increase operational excellence, turn innovation into value for our customers and drive TII to the next level,” says Dr. Gregor Wiche.
In parallel with the management transition, the shareholder family has decided to establish a new holding structure. The new top holding company, TII Group GmbH & Co. KG, will also be managed by Dr. Gregor Wiche and Filippo Baldassari as Managing Directors.
As part of this organizational development, Susanne Rettenmaier will step down from her previous role as managing director of the family holding and join the Supervisory Board. In this role, Susanne Rettenmaier will continue to uphold the interests and values of the Otto Rettenmaier family together with the family owners and the Supervisory Board members and ensure a close and lasting connection between the shareholder family and the TII Group.