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Leadership Team

Chief Executive Officer

Our CEO is responsible for the strategic decisions related to Tillotts. He sets the company objectives based on the input from the Senior Management Committee (SMC-O), in line with our vision and mission. Learn more about each member here. 

Thomas A. Tóth von Kiskér,
Chief Executive Officer

Thomas A. Tóth von Kiskér has been with Tillotts for more than 25 years in various roles and positions. 

Since January 2008, he has been the CEO of Tillotts.

Senior Management Committee (SMC-O)

The Senior Management Committee – Operational (SMC-O), responsible for the operational activities at Tillotts, consists of nine experienced managers, with Thomas A. Tóth von Kiskér serving as the chair of the committee and a rotating seat that changes among Managing Directors of our affiliates every 6 months.   

Moreover, they monitor the activities of the organisation to ensure they are in line with our company objectives and values.  

Head of FinanceMarcel Portmann

Head of Finance

Marcel Portmann joined Tillotts in October 2015. Prior to joining Tillotts, he worked as Head Group Reporting and Consolidation for a stock exchange listed Swiss energy company and before that, in different Swiss small and medium-sized enterprises in various finance roles.

Gabriella Schraner

Head of HR

Gabriella Schraner joined Tillotts in 2013. In February 2016, she was promoted to Head of HR. She is a Human Resources expert by training with specialization in International HR with more than 10 years of experience. Prior to Tillotts, she mainly worked in the biotechnology industry.

Head of Technical Operations

Harald Haubitz

Head of Technical Operations

Harald Haubitz joined Tillotts in January 2018. He is a pharmacist by training with over 25 years of experience in the pharmaceutical industry. Previously he held different management positions at Roche and was the COO of Acino for several years before he ran his own consultancy business.

Adrian Hill
Head of Commercial Operations

Adrian Hill joined Tillotts in January 2019. He has more than 25 years experience in commercial activities including experience in global marketing from several companies including Sanofi, GSK and most recently Kyowa Kirin.

Barbara Lange

General Counsel

Barbara Lange joined Tillotts in November 2019. She is a lawyer by training with almost 20 years of work experience as an in-house legal counsel having spent almost 15 years with Novartis/Alcon and recently with Bayer Consumer Care.

Johannes Spleiss

Head of Scientific Affairs

Johannes Spleiss joined Tillotts in November 1998. He took on positions of increasing responsibility and is now leading R&D, Medical Affairs, Drug Safety and Regulatory Affairs. A chemist by training, he has 30 years of experience in the pharmaceutical industry.

Ragip Ziyal

Head of Business Development & Licensing International

Ragip Ziyal joined Tillotts in April 2014. He has 25 years of experience in global Business,  Corporate Development and Licensing functions working for Merz Pharmaceuticals, Fujisawa (now Astellas), Altana/Nycomed/Takeda. He is a licensed pharmacist by training, has a PhD degree in pharmacology in Germany and holds an MBA from Warwick Business School, UK.

Jan Deresiewicz

​​​​​​​Managing Director, Affiliate Nordics

Jan Deresiewicz joined Tillotts in January 2012. With more than 25 years of pharma experience, he has held both Nordic and global sales and marketing positions in companies such as Bayer and AstraZeneca.