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The PSL Alliance

We work closely with you to identify your needs and create strategies to help you achieve your financial ambitions.


About ProteoGenix

ProteoGenix is a French leading antibody production company founded in 2003. Their integrated solutions from gene to biotherapeutics & diagnostics make them the preferred partner of pharmaceutical & biotech companies for their custom assay development and therapeutic antibody discovery :

– Monoclonal antibody development (Hybridoma technology or Phage Display, antigen design, antibody sequencing)

– Antibody engineering (Humanization, affinity maturation, Bi-specific antibodies, ADC, subtype or isotype switching)

– Recombinant monoclonal antibody production and IP-free or licensed stable cell line development

– Recombinant protein production (E. coli, B. subtilis, Yeast, Insect cells, Mammalian cells)

– Polyclonal antibody development

– Peptide synthesis

– Gene synthesis

ProteoGenix represents a one-stop solution from gene synthesis to the development of diagnostic kits or therapeutic molecules and provides large guarantees in terms of quality of all services.

ProteoGenix’s commitment to its clients is to ensure their access to comprehensive and integrated solutions to help them develop the tools they need to efficiently conduct their biology and research projects in a time-effective manner.


  • Strong focus on antibody validation and developability
  • Track record of 11 000+ antibodies and recombinant proteins successfully developed
  • IP free cell lines, proteins, and antibodies to expedite the transition from the bench to the market or final application
  • Experts in developing custom end-to-end solutions adapted to our clients’ needs
  • State of the art technology and a strong expertise in phage display, hybridoma, and protein expression in diverse recombinant systems


  • Primary and secondary antibodies for research use
  • Antigens from a variety of species for research use
  • COVID-19 antigens and antibodies for research use
  • Cell separation media for research use
  • ELISA kits for research use


  • antibodies
  • kits
  • in vitro reagents
  • proteins
  • molecular
  • custom services
  • cells tissues

Custom Services

  • Antibody Engineering
  • Antibody Expression
  • PAb Production
  • Peptide Synthesis
  • Phage Display
  • Protein Expression