About us

Leyden Labs is a clinical-stage biotechnology company that is fundamentally changing how we protect people from airborne viruses. The goal is to provide unprecedented protection, right in the palm of the hand, for those who need it most. Our nasal sprays are built on decades of combined knowledge of mucosal biology and drug delivery innovation.

Our story

Dutch biotechnology company Leyden Labs was founded by the team that built Crucell into a global vaccine pioneer. Following Crucell's acquisition by Johnson & Johnson in 2011, its technology and expertise became a cornerstone of Janssen Vaccines. Following on that experience, Leyden Labs was established by renowned biotech leaders Dinko Valerio, Jaap Goudsmit, Ronald Brus, and Koenraad Wiedhaup.

Born out of the pandemic of 2020, Leyden Labs was founded on the belief that people deserved more adaptive, effective solutions than vaccines and social distancing. While the world raced to develop vaccines and antivirals against a novel virus, our founders reflected on a clear paradox: if airborne respiratory viruses enter through the nose, why are we protecting through the blood? There is an obvious mismatch between standard approaches to fighting respiratory viruses by delivering drugs systemically and what is known about transmission of airborne respiratory viruses. Our founders endeavored to establish the company around a completely different approach: administer broadly protective medicines directly to the respiratory mucosa where viruses invade.

Since 2020, the company has continued to grow, be inspired, and be joined by the expertise and insights of leaders and founders with shared goals: Linfa Wang, Anna Marie Pyle, Akiko Iwasaki, Kazuhiro Ito, Garth Rapeport, and Jag Shur.

Our team

We are bringing this vision to life through the collective strength of an experienced team with the expertise and determination to deliver lasting results.

Koenraad Wiedhaup Founder and CEO at Leyden Labs

Koenraad Wiedhaup

Founder and Chief Executive Officer

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Jintanat Ananworanich

Chief Medical Officer

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Clarissa Koch

Chief Scientific Officer

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Susan Sobolov

Chief Technology Officer

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Marieke van der Lans

Chief Financial Officer

Ronald Brus Founder and Chief Business Officer at Leyden labs

Ronald Brus

Founder and Chief Growth Officer

Jaap Goudsmit Founder and Chief Scientific Officer at Leyden Labs

Jaap Goudsmit

Founding Scientist and Senior Advisor

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Rosemary Tan

CEO, Asia

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Xavier Maes

General Counsel

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Sagrario Arias Rivas

Research Partnerships 

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Victor Beslier

Intellectual Property 

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Anna Beukenhorst

Scientific Data

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Kristian Bolk

People

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Lizbeth Carmona

Clinical Development

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Justin Crawford

Research

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Chris Dachwitz

IT

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Ilse Haisma

R&D Operations

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Ya Luan Hsiao

Medical

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Ted Kwaks

Early Research

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Stephen Mc Nally

Quality

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Joana Meireles

Regulatory

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Dennis Mollema

Corporate Development

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Amanda Motto

Finance & Control

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Mabel Ng

Operations, Asia

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David Phang

Business Development, Asia

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Kerri Pierz

Market Development

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Robin Rogiers

Medical

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Thomas Thunnissen

Procurement & Partnerships

Dennis de Vlaam Head of Operations at Leyden Labs

Dennis de Vlaam

Business Development

Our Supervisory Board

Dinko Valerio
Founder and Chair of the Supervisory Board
Crucell, former CEO


Onno van de Stolpe
Galapagos, former CEO

James Shannon
GSK, former CMO
Novartis, former Global Head of Development

Richard Whitley
University of Alabama
Professor in Pediatrics and Microbiology, Medicine and Neurosurgery

René Russo
Xilio Therapeutics, CEO

Ben Verwaayen
Alcatel-Lucent, former CEO

David Schenkein
GV, General Partner

Stephen Knight
F-Prime Capital, President and Managing Partner

Eli Casdin
Casdin Capital, Chief Investment Officer and Founder

Khoo Shih
ClavystBio, CEO

We are grateful to the contributions John Martin, the esteemed former CEO of Gilead Sciences, made to Leyden Labs before his passing in 2021.

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Leyden Laboratories B.V.

Leiden Laboratory
Emmy Noetherweg 2
2333 BK  Leiden
The Netherlands


Leyden Labs Asia Pte. Ltd.

79 Science Park Drive
#04-05, Cintech IV
Singapore 118264


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