Member since May 2021

Paul Zumbühl
Chairman of the Board of Directors

(born 1957, Swiss, not independent, previously CEO)

Paul Zumbühl holds a degree in Engineering (Dipl. Ing.) from the University of Applied Sciences and Arts in Lucerne, Switzerland. He also holds an MBA from the Joint-University Program of the Universities of Boston, Bern and Shanghai, and has completed an AMP from the Kellogg Business School of Northwestern University Evanston/Chicago. Furthermore, he holds a degree as a federally certified marketing manager. He has broad expertise in corporate strategy and leadership, innovation, M&A transactions, corporate culture and investor relations. 

After working for Symalit AG as a Sales Manager/ Engineer, he held various management positions and was a Managing Director in the Sarna Group. From 1994 to 1999, he was CEO of Mikron Plastics Technology and a member of the Group Management of the Mikron Group. From January 2000 to April 2021, he was CEO of Interroll Group. 

Zumbühl is also Chair of the Board of Directors of the two listed Swiss companies Schlatter Industries AG and Mikron Holding AG and Zumbühl Management AG. Since May 2021, he has been Chairman of the Board of Directors of Interroll Holding AG.

Member since 2020

Markus Asch
Vice Chairman of the Board of Directors, Chair of Remuneration and Nomination Committee

(born 1971, German, independent)

Markus Asch holds a degree in mechanical engineering (Dipl.-Ing.) from the Hochschule für Technik in Esslingen and a versatile expertise in the fields of technology and service. He has been CEO of Rittal International and Chairman of the Management Board since February 2021. Previously, he had been with Kärcher since 1995 where he held several management positions until he was appointed to the management board in 2007. From 2010, Asch served as deputy chairman at Alfred Kärcher SE & Co. KG, headquartered in Winnenden (Germany), and from January 2020 as Chief Technology Officer (CTO). Markus Asch has been a member of the Board of Directors since 2020 and is currently Vice Chairman and Chairman of the Remuneration Committee. He has no other board memberships.

Member since 2019

Dr. Elena Cortona
Chair of Sustainability Committee

(born 1970, Swiss and Italian, independent)

Dr. Elena Cortona has versatile expertise in the transformation of market requirements into the development and digitalization of products, as well as in the digitalization of work processes. She holds a degree in Mechanical Engineering from the Turin University of Technology and a PhD in Mechanical Engineering from ETH Zurich. Since June 2021, she has been Chief Technology Officer (CTO) and member of the Executive Committee of the Belimo Group. Previously, since 2017, she served as "Senior Vice President Digital Transformation" in the CTO Division of the Schindler Group, headquartered in Ebikon, Switzerland, after having held various management positions in the elevator group since 2001. Dr. Elena Cortona has been a member of the Board of Directors since 2019. She  has no other board memberships.

Member since 2013

Stefano Mercorio
Member of Remunerarion and Nomination Committee, Member of Audit Committee

(born 1963, Italian, not independent, representative of the  Ghisalberti family)

Stefano Mercorio holds a degree in economics and has a diverse versatile expertise in corporate law and finance. He is a legal auditor in Italy and founder and senior partner of Studio Castellini Mercorio & Partners. He has been a Chartered Accountant since 1987, registered in the "Albo dei Dottori Commercialisti e degli Esperti contabili di Bergamo". Stefano Mercorio has been a member of the Board of Directors of Interroll Holding AG since 2013 and is currently a member of the Audit Committee and the Remuneration Committee. He holds no other board memberships.

Member since 2021

Susanne Schreiber
Chair of Audit Committee

(born 1974, German, independent)

Susanne Schreiber holds the second state examination in law in Bavaria and works as a tax advisor in Germany as well as in Switzerland as a lawyer and dipl. Tax Expert. She has extensive experience in international M&A transactions and international tax law. Since 2015, she has been a partner and co-head of the tax department at Bär & Karrer AG in Zurich, where she also serves as Chairman of the Board of Directors. Previously, she worked for an international law firm in Germany and for KPMG in Zurich, where she headed the Swiss M&A tax department until 2015. Susanne Schreiber has been a member of the Board of Directors since 2021 and is currently Chairman of the Audit Committee. She holds no other external Board of Directors' mandates.

Member since 2006

Ingo Specht
Member of Sustainability Committee

(born 1964, German, not independent, representative of the Specht family)

Ingo Specht holds a degree in industrial management from the Chamber of Industry and Commerce in Cologne, Germany. He has extensive expertise in production strategy, process digitalization and quality management. He was owner and managing director of Luxis in Locarno and held various senior positions in IT, Marketing and Business Development within the Interroll Group. In his current position, he is Managing Director of Interroll SA. Ingo Specht has been a member of the Board of Directors since 2006. He holds no other board memberships.

Member since May 2021

Ingo Steinkrüger
Chief Executive Officer (CEO)

(born 1972, German)

Ingo Steinkrüger holds a degree (Dipl.-Ing.) in mechanical engineering (production technology) and a degree (Dipl.-Ing.) in industrial engineering from the University of Cologne. He brings more than 20 years of proven management and technical expertise with a focus on project and product business, automation, engineering, and production technology, and has extensive global sales and service experience in the automotive industry.

He began his career in the thyssenkrupp Group in 2000 at Johann A. Krause Maschinenfabrik GmbH in Bremen as a sales/project engineer. After holding several successful management positions in project management, business development, service business, and global key account management, Ingo Steinkrüger took over overall responsibility for Global Sales & Service as vice president. From mid-2016,  Steinkrüger was assigned the position as CEO of the same stand-alone business unit thyssenkrupp System Engineering. Since May 2021, Ingo Steinkrüger leads the Interroll Worldwide Group as Chief Executive Officer (CEO).

Member since July 2020

Maurizio Catino
Chief Sales Officer (CSO)

(born 1977, Italian)

Catino graduated in Electronic engineering at the Politecnico of Turin in 2002. He looks back on several years of experience in the automotive business, starting in the FCA group where he was involved in different projects related to cost analysis and production optimization. Catino started his “sales career” afterwards in the automation business as global key account manager for big automotive end users for a Japanese company. In 2013, he joined Interroll and opened successfully the new Italian branch as General Manager followed by the position of Global Industry Manager for the automotive and tire market. From 2018, Catino held the position of Senior Director Global Sales & Services. In July 2020 he took over the role of Executive Vice President Global Sales & Service.

Member since April 2020

Heinz Hössli
Chief Financial Officer (CFO)

(born 1969, Swiss)

Heinz Hössli graduated as Certified Public Accountant (CPA) from EXPERTsuisse, Zurich, Switzerland and holds a Global Executive MBA from Duke’s Fuqua School of Business in Durham, United States, with recognition as a Fuqua Scholar.

His previous roles included Chief Financial Officer/Vice President Advanced Materials (since 2012) at Bühler Group as well as Vice President Finance & Controlling Advanced Materials and Chief Financial Officer (CFO) of the Business Area Die Casting (from 2009 to 2011). From 2002 to 2009, Mr. Hössli held a number of leadership roles as CFO of Bühler subsidiaries and spent 8 years in the United States and Mexico. Before joining Bühler in 1999 as Internal Group Auditor, he worked as Auditor for Ernst & Young, Zurich as well as a management member at various fiduciaries in Switzerland.

Member since July 2013

Dr. Ben Xia
Executive Vice President Asia-Pacific

(born 1966, Chinese)

Dr. Ben Xia, graduated as B.Sc. in electrical engineering at the Shanghai Jiaotong University, China. Further on, he studied electrical machinery at the Moscow Power Engineering Institute, Russia, and holds a PhD degree in electrical engineering (Dr.-Ing.). He also passed the Advanced Management Programme for Senior Executives at the China Europe International Business School (CEIBS) in Shanghai, China. After working for Pirelli Cables Asia-Pacific as Marketing Manager, he held positions as General Manager of Shanghai Citel Electronics Co. Ltd. and Managing Director of Vanderlande Industries North Asia. In 2013 he joined Interroll Group as Executive Vice President Asia and member of Interroll Group Management.

Member since March 2018

Richard Keely
Executive Vice President Americas

(born 1972, American)

Richard Keely has more than 20 years of experience in the production environment and in strategy consulting. He has been with the company since 2006 and served as Vice President Manufacturing/General Manager for Interroll Wilmington until 2011 and as Senior Vice President Operations for the Americas region since 2011. Previously, Keely held senior positions in consulting and production.

Member since September 2024

Alp Ayhan Demirel
Chief Operating Officer (COO)

(Born 1972, German)

Alp Ayhan graduated from the Nuernberg Institute of Technology with a degree in business management. He began his career more than a decade ago during which time he has held several positions in the production environment. Prior to joining Interroll, Alp Ayhan worked for Schaeffler Technologies., Siemens, and AEG-Electrolux Hausgeräte. He became Chief Operating Officer at Interroll in September 2024.