Exceptional Science.
Uncompromising Quality.

Your regulatory compliant large molecule bioanalytical CRO

Custom Biologics is a global leader providing specialized, GLP-compliant, assay development, validation and testing services to support the pre-clinical/CMC and clinical stages of biopharmaceutical drug development.

Latest Resources

Event
November 4, 2025
American College of Toxicology 2025 Annual Meeting
Custom Biologics will exhibit at the American College of Toxicology 2025 Meeting in Phoenix, AZ. Visit Booth #116 to meet our team and learn about our GLP-/GMP-compliant bioanalytical testing services for biologics, biosimilars, and gene therapies.
Event
October 9, 2025
Preclinical Development and IND Filing for Antibody Therapeutics (PBSS October 2025)
Join Custom Biologics at the October 14 PBSS event, Preclinical Development and IND Filing for Antibody Therapeutics: the Nuts, Bolts & Best Practices in Seattle!
Event
August 27, 2025
Gene Therapy Challenges & Best Practices: From Discovery to IND & Beyond (PBSS 2025)
Join us at the PBSS 2025 event in Foster City on September 26, where industry leaders will discuss gene therapy innovations. Visit Custom Biologics to learn about our advanced bioanalytical solutions supporting gene therapy programs from discovery through clinical trials. Connect with us to optimize your development strategies.

Ready for the next stage of your drug development journey? Let’s plan next steps together.

Whether you have a specific project you’d like to discuss, or have a question about our suite of biopharmaceutical assays, we look forward to hearing from you.

Contact us today