Management Team

Jos Raats PhD

President and CEO

Jos established ModiQuest Research and its sister company, ModiQuest B.V focusing on the development of novel therapeutics for autoimmune diseases in 2004.  He has been CEO of the ModiQuest group since 2004.  Since 1994 he has worked in the recombinant antibody, and citrullination field studying citrullinated autoantigens, ACPA antibodies, and protein citrullination.  He is co-inventor of the highly sensitive, gold standard, early diagnostic test for RA (anti-CCP test).  He is co-inventor of the tACPA antibodies.  He has managed numerous antibody lead generation programs within ModiQuest CRO branch.  He has been involved in scientific research for more than 25 years, with over 50 publications from work at the University of Nijmegen, the Wellcome/CRC Institute in Cambridge (UK), at the University of Minnesota, in Minneapolis (USA), and ModiQuest.

Debby Kruijsen MSc PhD

Head Contract Research

Debby Kruijsen obtained a PhD in immunology at the University of Utrecht, The Netherlands in 2011, studying the role of antibodies in affecting antigen presentation and subsequent Respiratory Syncytial Virus specific T cell activation. In 2012 Debby joined ModiQuest Research as a scientist supervising hybridoma antibody discovery projects. In 2013 Debby was appointed as Head Contract Research of ModiQuest Research were she is responsible for all contract research projects and is a member of the business development group.


Nienke Smits  

Business Development

As of 2014, Nienke is a member of the business development team of ModiQuest Research supporting client contract R&D projects. Previously, she was working as a researcher in the lab of ModiQuest Research focused on hybridoma generation and transient antibody productions. Nienke has a degree in biochemistry from HAN (Nijmegen, The Netherlands). If you have any questions or inquiries regarding ModiQuest’s custom antibody generation and development services, Nienke will be your first contact point.