For more than 30 years, Gannet BioChem has supported therapeutic innovators with reliable, high-quality cGMP manufacturing of PEG and activated polymer reagents. Our facilities and tenured team provide end-to-end continuity from early development through commercial supply, helping partners scale CDMO services with confidence and maintain the quality their programs demand.

From Early Development to Commercial Supply, All-in-One Facility

Successful manufacturing depends on experienced people, strong processes, and a smooth transition from one stage to the next. At Gannet BioChem, the teams who help refine your early-phase process are the same teams who guide it into cGMP production, creating continuity that reduces risk and shortens timelines.

With decades of polymer science and cGMP manufacturing experience, we support programs at any stage and scale production as your therapeutic advances, ensuring consistent quality and dependable delivery throughout the life cycle.

One of Gannet BioChem's cGMP manufacturing team members working with a glove box
Polymer scientists in our process development laboratory

Early Phase & Scale-Up

Our early-phase manufacturing capabilities are built for flexibility, rapid iteration, and close collaboration. Whether you’re preparing materials for preclinical studies or refining your process before entering cGMP production, our team works closely with you to optimize conditions and lay the foundation for future scale-up.

Capabilities include:

  • Reactor capacities up to 200L for agile batch production
  • Custom synthesis tailored to molecule-specific requirements
  • Integrated analytical methods supporting purity, identity, and impurity control
  • Long-standing supplier relationships ensuring reliable raw material sourcing

These capabilities support test batches for in vivo studies, preclinical cGMP materials, and initial cGMP reagent production for CDMOs or in-house manufacturing teams. Our development and analytical method development teams remain closely involved to ensure your process is ready for larger-scale execution.

Commercial-Scale Manufacturing

As your program enters later clinical phases or commercial readiness, Gannet BioChem provides the expertise and infrastructure needed to scale efficiently and consistently. Our history supplying nine FDA-approved therapies reflects our ability to meet demanding volume, purity, and reliability requirements.

Capabilities include:

  • Reactor capacities up to 800L for high-volume production
  • Infrastructure designed to support seamless clinical-to-commercial transitions
  • Established sourcing strategies for consistent raw material quality
  • Manufacturing workflows optimized for efficiency, reproducibility, and dependable delivery

Our team supports both new programs scaling up within our facility and established processes transferring in from external partners.

A scientist at a CDMO providing activated polymer services
A manufacturing worker standing near equipment in our CDMO facility

Quality Systems That Support Every Stage

Quality is embedded in every aspect of our cGMP manufacturing operations. Our site has a long-standing track record of successful FDA and client audits, and our internal quality system is built to ensure transparency, precision, and compliance at all scales.

Analytical testing is performed in-house, allowing rapid turnaround, aligned communication between manufacturing and analytical teams, and timely release of materials. Documentation, batch records, and regulatory support are structured to meet the expectations of both clinical and commercial programs.

A Collaborative Manufacturing Partnership

Manufacturing at Gannet BioChem is a hands-on, collaborative experience. We maintain open communication with partners throughout development and production, providing clear visibility into process status and decisions. Clients are welcome on-site for laboratory work, pilot demonstrations, and initial manufacturing runs, ensuring full alignment as programs progress toward scale.

An expert specializing in PEGylation chemistry and polymer conjugation

Advance Your cGMP Manufacturing Strategy With Confidence

Whether you are refining an early process, preparing for scale-up, or seeking a trusted partner for commercial manufacturing, Gannet BioChem offers the experience, rigor, and reliability to support your next milestone.

Frequently Asked Questions

Dive deeper into Gannet BioChem’s manufacturing approach.

Under cGMP conditions, Gannet BioChem manufactures PEG reagents and activated polymer materials that support therapeutic development and commercialization. These materials are produced for use in polymer-enabled drug delivery and conjugation workflows and are manufactured at Gannet BioChem’s facilities. Manufacturing activities are supported by integrated analytical testing and quality systems designed to ensure materials meet defined specifications and regulatory expectations.

Gannet BioChem supports the transition into cGMP manufacturing by maintaining continuity between development, analytical, and manufacturing teams. The same scientists who help refine early-phase polymer processes remain involved as programs advance. This integrated approach reduces risk, supports efficient tech transfer, and helps programs move into cGMP production with clarity and confidence.

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Yes, Gannet BioChem supports polymer programs across both early-phase and commercial manufacturing stages. The organization provides flexible early-phase capacity for development and initial cGMP batches, alongside established infrastructure designed to support commercial supply. This scalability allows partners to advance programs as requirements evolve.

Gannet BioChem’s facilities are purpose-built, with infrastructure designed specifically for complex polymer manufacturing. Our Huntsville, AL, site includes multiple manufacturing suites, scalable reactor capacities, advanced purification and drying technologies, and comprehensive cold storage options to protect product integrity. In-house analytical laboratories further strengthen the facility’s ability to support precise control, rapid feedback, and consistent execution for demanding polymer chemistries. Our Arab, AL, facility is designed to support catalog and custom products, including cGMP products, with batch sizes from grams to kilogram scale.

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Consistency and reproducibility are achieved through a combination of experienced personnel, well-defined processes, and integrated analytical oversight. Gannet BioChem applies disciplined control of raw materials, reaction conditions, purification strategies, and isolation methods supported by in-house testing and long-standing quality systems. Development activities are designed with manufacturing readiness in mind, helping ensure processes scale predictably while maintaining defined quality attributes.

Analytical testing is fully integrated into Gannet BioChem’s cGMP manufacturing workflows and performed in-house to support timely decision-making and material release. Analytical teams work closely with manufacturing and development scientists to monitor critical quality attributes, support in-process controls, and confirm final product specifications. This alignment enables efficient batch release and clear communication across teams.

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