We specialize in antibody production and discovery – dedicating ourselves to advancing human health and promoting sustainability with more than 10 years of experience. We offer premium solutions at competitive rates, all anchored in our commitment to a brighter and healthier future.

Founded in 2012 and certified to ISO 9001:2015, Biointron is a CRO specializing in antibody discovery, optimization, and expression services for global biotech and pharmaceutical companies. Biointron holds a leading position in the antibody expression industry. From gene sequence to purified antibodies, it only takes 2 weeks. We have delivered over ten thousand of recombinant antibodies for 2,000+ biotech and pharma companies worldwide.

We provide a one-stop solution for antibody discovery and optimization – including VHH antibody discovery, single B-cell antibody screening, hybridoma sequencing, antibody humanization, antibody affinity maturation, and more.

Additionally, Biointron holds global sublicensing rights for ECACC's CHO-K1. Our CHOK1BN cell line, which is derived from CHOK1, has been filed in the DMF system with the US FDA. By choosing the CHOK1BN cell line, several partners’ projects have entered the multicenter international clinical trials successfully.

Services We Offer

• High-Throughput Recombinant Antibody Production

  From sequences to antibodies, it happens in just 2 weeks.

• Large Scale Recombinant Antibody Production

  Scaling antibody solutions at speed: gram-levels to accomplish in just 4 weeks.

• High Efficient Bispecific Antibody Production

  Double the impact, half the time: we have successfully delivered thousands of bsAbs of customized formats.

• Commercial Sublicense of CHOK1BN Cell

  Line Licensed from ECACC, one-time sublicense fee for multiple products.

• VHH Antibody Discovery

  Unique binders guaranteed; self-owned alpaca breeding and farming base.

• High-throughput Antibody Humanization

  Back mutation and CDR grafting, affinity guaranteed.

• Hybridoma Sequencing

  Delivered in 1 week, with a guaranteed 100% sequence accuracy.

• Catalog Products - Antibodies for in vivo Research

  Research-grade target-positive antibodies, isotype-negative antibodies, anti-mouse antibodies, fusion proteins, and more.