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Industry leaders in large-scale flowthrough
column synthesis 

PeptiSystems team has over 100 years of combined experience working in this field. Our CSO and former CEO, Lars Holmberg, was in charge of the innovation and development of the industry's first large-scale flowthrough column technology instruments for oligonucleotide synthesis in the 1980s and 1990s at Pharmacia, Amersham and later at GE Healthcare. Working together, the PeptiSystems team has taken flowthrough column technology to a new level and applied it also to work successfully for large-scale peptide synthesis for the first time in the industry. 

The PeptiSystems co-founders worked together for 4 years at GE Healthcare to develop a peptide synthesizer based on flowthrough column technology. However, that project was cancelled due to reorganisation in the company. A year later, the team decided to start PeptiSystems to realize the innovation and impact on how both peptides and oligonucleotides are synthesized today. 

Meet our team

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Karin Granath

Chief Executive Officer

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Karin has 20+ years of experience in different leadership positions within the MedTech industry. She has a broad background in product development, product management, and business operations.
Before joining PeptiSystems, Karin had the overall business responsibility as General Manager for a subdivision within GE Healthcare's Molecular Imaging segment.
She has a PhD position in Solid State electronics from Uppsala University.

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Lars Holmberg

Chief Scientific Officer

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Lars invented the first large-scale flowthrough column technology instruments for oligonucleotide synthesis while at Pharmacia in the 1990s. He worked for GE Healthcare commercializing the instruments for many years until starting PeptiSystems in 2014.
He has a Ph.D. in Carbohydrate Chemistry 

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Mats Israelsson

VP of Software

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Mats has a M.Sc. in Computer Sciences and over 30 years of experience in the software industry. He worked for over
10 years at GE Healthcare as a systems architect, project manager, and specialist in the development of UNICORN, the software used at GE Healthcare for their oligonucleotide manufacturing instruments.

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Rannar Sillard

VP of Hardware

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Rannar has over 30 years of experience in R&D of peptide chemistry, synthesis, biochemistry, and pharmacology. He was head of the R&D of the PeptiPilot Instruments at GEHC. He has a publication record of over 80 research articles in peer-reviewed scientific journals, book chapters, and several patents/patent applications. Rannar has a Ph.D. in Biological Chemistry and the qualification of Associate Professor in Medical Biochemistry at Karolinska Institute. He has previously co-founded companies in Life Sciences.

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Florence Genet

VP of Marketing & Sales

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Florence has a M.Sc. in Science and Technology of agro-industry from Polytech'Montpellier, France. She has 20 years of experience developing and managing businesses with cutting-edge technologies in the Life Sciences market. She previously worked for companies like Biacore, and GE Healthcare. Before joining PeptiSystems, she was Senior Director, Head of Sales EMEA at Gyros Protein Technologies.


Jonas Lejonklou

Chief Operating Officer

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Jonas has 20 years of experience in the Operation/Supply Chain industry, both as a manager and team leader.
Jonas is equipped with all the necessary tools to succeed in multiple areas: Logistics/Operations, Supply Management/Delivery, Warehouse management, and Production management.
Before joining PeptiSystems, Jonas had the overall Supply Chain responsibility as Supply Chain manager at Gyros Protein Technologies.

Jonas was trained in Logistics at Stockholm School TUC.

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Łukasz Frankiewicz

Global Product Support Manager

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Łukasz completed his Ph.D. in Peptide Chemistry in 2006 at the Faculty of Chemistry, University of Warsaw, Poland. He held multiple PostDoc positions in Brussels, Belgium, and Dublin, Ireland, working with companies on different projects related to the synthesis of peptide therapeutics. He then moved to the industry and worked as the Head of Peptide Libraries and R&D Manager for GENEPEP and later as the Product Manager for Gyros Protein Technologies. His goal is to combine his knowledge of Peptide Synthesis and interest in technology and apply it to the creation of better peptide synthesizers.

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Jie Yang


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Jie completed his Ph.D. in 2017 and worked as a Researcher at Uppsala University (2017-2019) and Postdoc. at Gothenburg University & Astrazeneca (2019-2021). He is an experienced organic chemist with expertise in peptide chemistry. 

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Victoriia Karpenko


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Victoriia completed her Ph.D. in 2010 in the field of peptide chemistry and antibiotic modification. She did research in Germany, USA, Russia, and Sweden, mostly specializing in the field of in situ and in vitro peptide synthesis. She has wide experience in the life sciences areas.

External advisors

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Ulf Tedebark

Senior Advisor

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Ulf has 25+ years in the life science areas and worked for 15 years at GEHC in R&D, project management, and product support. He is a specialist in polymer supports, oligonucleotide and peptide synthesis, and biomolecule conjugate synthesis. Ulf has 7 patents/patent applications, published >20 scientific publications in peer-reviewed journals, and one book chapter. Ulf has a Ph.D. in Oligosaccharide Synthesis.

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