Our company

Diagnostics Differentiated

At Protagen, we are dedicated to the development of powerful diagnostic tools that aid successful therapeutic development and better treatment strategies for some of the most severe autoimmune diseases. Utilizing a personalized medicine approach, our powerful multi-marker assay technology SeroTag enables differential diagnosis and patient stratification in some of the most relevant diseases, such as Rheumatoid Arthritis, Systemic Lupus Erythematosus and Multiple Sclerosis. With our high-throughput disease and treatment marker development engine (SeroTag), we are uniquely positioned to develop innovative autoimmune diagnostics.This is evidenced by our broad development portfolio of novel diagnostic tests, secured by strong IP coverage and validated by proof-of concept studies in thousands of clinical samples.

We are committed to providing our customers and collaborators with exceedingly high levels of service, supporting them throughout the diagnostic test development and implementation process, and providing proactive and expert guidance.

Company History

Founded in 1997, Protagen began life as a protein analysis services company, as a spin-out from the Ruhr-University of Bochum. In 2002 Protagen moved to its current location in the BioMedical Center (BMZ) Dortmund.

2010 saw us strengthen our protein library and biomarker discovery capabilities, focusing on unmet diagnostic needs in autoimmune diseases by utilizing the power of autoantibodies. Our unique blend of experience and expertise in autoantibody serum screening, combined with the continuous improvement and optimization of biomarker development, has continued to push us forward, leading to the establishment of the SeroTag process in 2011.


Find out more about our executive team and board of directors, who are dedicated to delivering next generation diagnostics (Dx and CDx) for autoimmune disease.

Scientific Advisory Board

Protagen is supported by world leading experts in the field of autoimmune diseases. They guide our efforts to engage with the medical and scientific community and to develop next generation diagnostics.


Find out more about our group of committed long-term investors.


Interested in becoming a member of the Protagen team? Please take a look at our current job opportunities.

News & Events

View our News and Events page to keep up to date with the latest News at Protagen, details on upcoming event attendance, speaking engagements and product development.