--- name: Gannet Biochem slug: gannetbiochem site: cdmo website_domain: gannetbiochem.com summary: Specialized CDMO offering custom polymer science, PEG chemistry, bioconjugation, and cGMP manufacturing services from early discovery through commercial scale, with 30+ years of expertise rooted in Shearwater Polymers and Nektar Therapeutics. Headquartered in Huntsville, United States. tagline: Polymer science CDMO with 30+ years of PEG expertise, supporting discovery through commercial manufacturing. founded_year: 1992 employee_count_band: employee_count_label: parent_name: parent_slug: hq_country: US tier2_domain_verified: false updated_at: 2026-10-19T07:05:20.397Z services_count: 12 modalities_count: 4 indications_count: 0 locations_count: 2 review_signal_gate: closed generated_by: BioBM Editorial AI --- # Gannet Biochem Polymer science CDMO with 30+ years of PEG expertise, supporting discovery through commercial manufacturing. Listed on cdmo.directory. ## Summary Specialized CDMO offering custom polymer science, PEG chemistry, bioconjugation, and cGMP manufacturing services from early discovery through commercial scale, with 30+ years of expertise rooted in Shearwater Polymers and Nektar Therapeutics. Headquartered in Huntsville, United States. ## At a glance - Founded: 1992 - HQ country: US ## Services - CMC Analytical Development - Analytical Method Development & Validation - Formulation Development - Process Development - Stability Testing & Storage - ICH Stability Studies - Bioconjugation Services - Small Molecule Development & Manufacturing - Recombinant Protein Manufacturing - Biologics Development & Manufacturing - Technology Transfer - CMC Regulatory Submission Support ## Modalities - Small Molecule - Biologics (Other) - Biologics (Monoclonal Antibodies) - Peptide ## Locations - Headquarters, Huntsville, Alabama, United States - Manufacturing Facility, Arab, Alabama, United States ## Certifications - FDA; Identifier: FDA-registered operations; Source: https://gannetbiochem.com/about ## Long description ## Overview Gannet BioChem is a specialized contract development and manufacturing organization (CDMO) focused on polymer science, polyethylene glycol (PEG) chemistry, and bioconjugation services. With a scientific legacy spanning more than 30 years—originating from Shearwater Polymers (founded 1992) and later Nektar Therapeutics—the company was spun out as an independent entity in 2024 and acquired Laysan Bio in 2026 to expand its activated polymer technologies and GMP manufacturing capabilities. ## Core Capabilities **Polymer & PEG Services:** - Custom activated polymer and linker synthesis - PEGylation and bioconjugation strategies for proteins, peptides, small molecules, and complex therapeutics - Activated polymer services supporting development, scale-up, and manufacturing of complex materials with diverse architectures, molecular weights, and functional groups **Analytical Services:** - Analytical method development, qualification, and validation - Characterization of polymers, PEGs, and conjugates (identity, purity, molecular weight, functionality) - Impurity and degradation product analysis - Stability and forced degradation studies - Release testing for non-cGMP, GLP, and cGMP materials - Phase-appropriate methods designed to evolve alongside therapeutic programs **Manufacturing:** - cGMP manufacturing of PEG and activated polymer reagents from early-phase batches through commercial-scale supply - Compliant activated PEG production and bulk pharmaceutical chemical manufacturing - Flexible early-phase capacity and established commercial-scale infrastructure - FDA-registered facilities with 124,000 sq. ft. in Huntsville and 16,000 sq. ft. in Arab, Alabama **Project Management:** - Collaborative project management aligning scientific insight, analytical strategy, and operational planning - Cross-functional coordination supporting programs from early research through commercial supply - Realistic timeline and risk planning tailored to each program's stage and regulatory pathway ## Track Record & Regulatory Compliance - 9 FDA-approved therapies supported through PEG reagent supply - 50+ global partners across preclinical and clinical programs - 100% on-time, in-full delivery for PEG reagent manufacturing programs - FDA-inspected facilities with rigorous documentation practices - Comprehensive quality system designed for regulatory readiness at every development stage - Routine support for customer audits ## Modalities & Applications The company supports therapeutic programs utilizing PEG-enabled drug delivery across multiple modalities, including small molecules, peptides, proteins, and biologics requiring conjugation or polymer-based formulation strategies. ## Related companies - [Laurus Labs](/companies/lauruslabs) (CMC Analytical Development, Formulation Development) — [Compare](/compare/gannetbiochem/lauruslabs) - [ARSI Canada Inc](/companies/arsicanada) (CMC Analytical Development, Analytical Method Development & Validation) — [Compare](/compare/arsicanada/gannetbiochem) - [Scinai Immunotherapeutics Ltd.](/companies/scinai-immunotherapeutics) (CMC Analytical Development, Process Development) — [Compare](/compare/gannetbiochem/scinai-immunotherapeutics) - [Abzena](/companies/abzena) (CMC Analytical Development, Process Development) — [Compare](/compare/abzena/gannetbiochem) - [Enzene Biosciences](/companies/enzene) (CMC Analytical Development, Formulation Development) — [Compare](/compare/enzene/gannetbiochem) - [Pyramid Pharma Services](/companies/pyramid-pharma-services) (CMC Analytical Development, Formulation Development) — [Compare](/compare/gannetbiochem/pyramid-pharma-services) - [Dr. Reddy's Laboratories](/companies/drreddys) (CMC Analytical Development, Formulation Development) — [Compare](/compare/drreddys/gannetbiochem) - [Biocon](/companies/biocon) (CMC Analytical Development, Formulation Development) — [Compare](/compare/biocon/gannetbiochem) _Profile last updated: 2026-10-19T07:05:20.397Z. 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