Category
Small Molecule CDMOs
Compare small molecule CDMOs for API synthesis, drug product formulation, and finished dosage manufacturing. Filter by chemistry capabilities, scale, and regulatory approvals.
406 companies listed
About Small Molecule Manufacturing
Small molecule manufacturing covers two distinct stages: active pharmaceutical ingredient (API) synthesis and drug product (DP) formulation. API work involves multi-step chemical synthesis, from kilo-lab through pilot-plant to commercial scale. Drug product work transforms the API into tablets, capsules, injectables, or other dosage forms.
Process chemistry is where projects succeed or fail. Look for CDMOs with strong route scouting and process optimization capabilities. A good CDMO can improve yields by 20-40% during scale-up, saving months of development time. Crystallization expertise is particularly critical for controlling polymorphic form and particle size distribution.
How does your CDMO handle potent compounds? Many oncology and hormonal APIs require OEB4 or OEB5 containment. Not every small molecule CDMO has the engineering controls for sub-microgram exposure limits. Verify containment capabilities early -- retrofitting is expensive and slow.
Companies (406)
Celltrion
South Korea
Celltrion is a major South Korean biopharmaceutical company offering CDMO services for biologics, biosimilars, and small molecules. The company operates production capacities from 1,000L to 15,000L with a 98.5% batch success rate across 2,100+ cGMP drug substance batches, holding 400+ regulatory approvals in 90+ countries. Celltrion recently acquired Eli Lilly's Branchburg, New Jersey facility and launched Celltrion BioSolutions as a dedicated CDMO subsidiary, with plans to expand DS capacity to 132,000L by 2030.
Biologics Drug SubstanceBiologics Drug ProductFill/Finish (Vials)
C.O.C. Farmaceutici Srl
Italy
C.O.C. Farmaceutici Srl (Content Group) is an Italian pharmaceutical CDMO specializing in contract development, manufacturing, and filling of liquid, gel, and lyophilized pharmaceuticals, medical devices, and cosmetics. The company operates three production plants in Italy (Sant'Agata Bolognese, Rovereto sul Secchia, and Pomezia) with 500+ employees, generating 108.3 million euros in turnover in 2025, with particular expertise in ophthalmic and respiratory products. The Pomezia facility (Tubilux Pharma) is FDA approved.
Small Molecule Drug ProductFormulation DevelopmentFill/Finish (Vials)
Frequently Asked Questions
What is the difference between API and drug product manufacturing?+
API (Active Pharmaceutical Ingredient) manufacturing produces the chemical compound that provides therapeutic effect. Drug product manufacturing takes that API and formulates it into the final dosage form patients receive -- tablets, capsules, injectables, creams, etc. Some CDMOs handle both; many specialize in one.
How do you choose a small molecule CDMO?+
Match your project stage to the CDMO's capabilities. Early-phase needs: strong process chemistry and flexibility. Late-phase needs: validated manufacturing, regulatory filing support, and commercial-scale capacity. Check their experience with your reaction types (hydrogenation, cryogenic, high-pressure) and any special handling requirements (potent, controlled substances).
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