Biologics Development & Antibody Discovery for Biopharma
For over 60 years, AVS Bio has been the trusted source for high-quality biologics materials and custom antibody development. From SPF eggs and antigens to complete antibody discovery programs, we support vaccine development, diagnostics, therapeutics, and environmental testing worldwide.
The Foundation
AVS Bio is a leading supplier of biologics materials and antibody discovery services for biopharmaceutical companies, diagnostic developers, and research institutions. Since 1961, we've provided the biological materials and expertise that power innovation in vaccines, therapeutics, diagnostics, and environmental testing.
Our biologics portfolio includes:
• SPF (Specific Pathogen Free) eggs for vaccine production and research
• High-quality antigens for assay development and validation
• Recombinant proteins produced via our proprietary rPEx® platform
• Custom antibodies from discovery through optimization
• Primary cell products
The Fit
From ready-to-ship SPF eggs and antigens to engineered proteins and custom antibodies, we deliver what you need today — whether that's a single material shipment or a full discovery partnership. As your program scales, we scale with you.
Why leading biopharma companies choose AVS Bio:
• 60+ years of biologics expertise and innovation
• 100+ successful antibody development programs completed
• 10+ antibodies developed with AVS Bio currently in clinical trials
• Proprietary rPEx® protein expression platform — from high-throughput 0.5 mL expression in a 96-deep-well plate up to 150 liters scale
• Comprehensive quality assurance and biosecurity protocols
• Expert technical support throughout your project
The Trust
Milestone by milestone, side by side.
development that entered clinical trials
The Science
Every program starts with a conversation. Our technical team works directly with yours to define the right platform, scope, and timeline before you commit — then stays engaged as your program moves from discovery through optimization. As your science is evolving, we're built to keep pace.
Applications We Support
From global biopharma to next-gen animal health.
Critical materials for developing routine and novel assays.
Antigens, deaminated proteins, and other products for defining disease-relevant targets.
Reference materials for vaccine studies, regulatory testing, and efficacy research.
Standards for developing pathogen and contamination detection assays.
