Gannet BioChem is a speciality CDMO based in Huntsville, Alabama, focused on polyethylene glycol (PEG) reagents for biopharmaceutical applications.

With over 30 years of expertise, Gannet BioChem has played a pivotal role in advancing PEGylation technology. Its FDA-inspected facility provides flexible manufacturing capabilities, supporting products from research stages to commercial-scale production. Originally operating as Shearwater Polymers and later a subsidiary of Nektar Therapeutics, the company now operates independently under Ampersand Capital Partners. Situated near one of the USA’s leading life sciences hubs, Gannet BioChem supports several FDA-approved therapeutics and commercialised drugs.

Key Products and Services:

• End-to-end GMP manufacturing of PEG reagents.
• Development and scale-up for commercial manufacturing.
• Supply chain support for nine FDA-approved drugs.
• Custom PEG solutions for peptides, proteins, and antibody fragments.
• Flexible small-scale to large-scale production capacity.

Gannet BioChem combines decades of experience with state-of-the-art facilities, ensuring quality, innovation, and scalability for its partners in the biopharmaceutical industry. Positioned strategically in Alabama, the company is a trusted name in PEGylation technology​.