Pel-Freez laboratory services, scientist with microscope

Custom Services

Whether you need custom biologicals, specialized processing, or access to capabilities you don’t have internally, our experienced team works with you to deliver reliable, high-quality solutions. Our services are backed by 70+ years of biological manufacturing experience, ISO 9001-certified facilities, and comprehensive in-house quality control capabilities.

Explore our featured services below or send us a message to learn how Pel-Freez can support your project.

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All Services

Custom polyclonal antibody production, Pel-Freez

Custom Antibody and Antiserum Production

Our U.S.-based antibody services are backed by decades of rabbit immunization and production expertise. Choose our standard polyclonal antiserum service or add ELISA testing, IgG purification, B cell/mAb isolation, and more.
Custom immunodepletion service processing, Pel-Freez

Custom Immunodepletion Services

We offer selective immunodepletion to remove interfering IgG/IgM/IgA from donor serum while preserving complement activity, helping vaccine developers generate reliable hSBA results from otherwise unusable samples.
Complement CH50 testing service, Pel-Freez Biologicals

Complement (CH50) Testing

Quantify complement activity in donor samples or assess real-time stability of key sera lots for long-term clinical research studies using our validated, in-house CH50 testing service.
Lyophilization equipment for freeze-drying biologicals

Lyophilization

In-house lyophilization services for liquids and powders. From small batch to 250 L per batch.
Filtration equipment for biological product processing

Filtration

Sterile and non-sterile filling up to 220 L with multiple options for heat-inactivation, delipidization, etc.
Animal tissue extraction process, Pel-Freez facility

Custom Tissue Extractions and Procurement

Extensive history supplying custom animal tissues for academic and clinical research, drug development, and more. Whole blood, serum, and plasma collected on-site. Custom protocols available upon request. Acetone and ethanol-based extracts produced on-site in explosion proof, vented laboratory.
Blood fractionation equipment, Pel-Freez facility

Blood Fractionation

Experts in protein purification from blood including gamma globulins and albumins using a variety of protein fractionation methods.

Our Facilities

  • 40,000 square feet of ISO 9001-certified manufacturing space.
  • Largest rabbit abattoir in the U.S. with full-time USDA inspection on-site.
  • 40 acres of company-operated farms.
  • Full suite of in-house quality control capabilities including: HPLC, SPE. IEP, SDS-PAGE, spectrophotometry, endotoxin (LAL) and coagulation testing.
  • Close relationship with the University of Arkansas - our nearby, flagship research campus provides additional access to significant technical facilities and expertise.
  • 110 full-time employees and growing.
Pel-Freez Biologicals manufacturing facility, Rogers, Arkansas

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