Capability
Small Molecule API CDMOs
Compare CDMOs specializing in small molecule API synthesis from route scouting through commercial manufacturing. Filter by chemistry capabilities, scale, and regulatory approvals.
50 companies listed
For a small molecule API, the synthetic route is the program. A CDMO's process chemists decide how you get from raw materials to drug substance: how many steps, what yield, and which impurities you'll spend the next two years explaining to regulators. Route scouting and development are where a strong API partner earns its fee. Crystallization is the part buyers underestimate. It controls polymorphic form and particle size, and a polymorph surprise during scale-up has delayed more filings than most people admit. So probe the chemistry. Have they run your reaction types (hydrogenation, cryogenic steps, flow chemistry) at kilo-lab through metric-ton scale? Is the API high-potency, needing OEB4/5 containment? Do they have ICH Q11 filings and a defensible regulatory starting material strategy? 50 CDMOs here list small molecule API synthesis. Compare them on chemistry, scale, and regulatory experience.
About Small Molecule API Manufacturing
Active Pharmaceutical Ingredient (API) manufacturing is the chemical synthesis of the drug substance itself. For small molecules, this involves multi-step organic chemistry from raw materials to the final API, requiring expertise in reaction chemistry, purification, crystallization, and process optimization.
Process chemistry determines project success. A strong CDMO identifies the most efficient synthetic route, optimizes reaction conditions for yield and purity, and develops a process that scales reliably from gram to metric ton quantities. Crystallization expertise is particularly critical for controlling polymorphic form and particle size distribution.
Companies (50)
O
Onko Ilac Sanayi ve Ticaret A.S.
Turkey
Onko Ilac Sanayi ve Ticaret A.S. is a pharmaceutical CDMO offering comprehensive services.
Peptide SynthesisSmall Molecule APIFormulation Development
B
Beijing Odyssey Chemicals Co., Ltd.
China
Beijing Odyssey Chemicals Co., Ltd. is a pharmaceutical CDMO offering comprehensive services.
Peptide SynthesisSmall Molecule APIFormulation Development
Axio BioPharma
United States
Axio BioPharma is a pharmaceutical CDMO offering comprehensive services.
Small Molecule APISmall Molecule Drug ProductOral Solid Dose
Avara Pharmaceutical Services
United States
Avara Pharmaceutical Services is a pharmaceutical CDMO offering comprehensive services.
Small Molecule APISmall Molecule Drug ProductOral Solid Dose
Groupe PARIMA
Canada
Groupe PARIMA is a pharmaceutical CDMO offering comprehensive services.
Peptide SynthesisSmall Molecule APIFormulation Development
BioSpring GmbH
Germany
BioSpring GmbH is a pharmaceutical CDMO offering comprehensive services.
Peptide SynthesisSmall Molecule APIFormulation Development
7bridges (the7bridges.com)
United Kingdom
7bridges (the7bridges.com) is a pharmaceutical CDMO offering comprehensive services.
Small Molecule APISmall Molecule Drug ProductOral Solid Dose
Kemwell Biopharma Private Limited
India
Kemwell Biopharma Private Limited is a pharmaceutical CDMO offering comprehensive services.
Small Molecule APISmall Molecule Drug ProductOral Solid Dose
KLOCKE GRUPPE
Germany
KLOCKE GRUPPE is a pharmaceutical CDMO offering comprehensive services.
Peptide SynthesisSmall Molecule APIFormulation Development
Monument Chemical bvba
Belgium
Monument Chemical bvba is a pharmaceutical CDMO offering comprehensive services.
Small Molecule APISmall Molecule Drug ProductOral Solid Dose
J
Juzen Chemical Corp
Japan
Juzen Chemical Corp is a pharmaceutical CDMO offering comprehensive services.
Small Molecule APISmall Molecule Drug ProductOral Solid Dose
Cohance Lifesciences
India
Cohance Lifesciences is a pharmaceutical CDMO offering comprehensive services.
Small Molecule APISmall Molecule Drug ProductOral Solid Dose
BioReliance (Merck KGaA, MilliporeSigma)
Scotland
BioReliance (Merck KGaA, MilliporeSigma) is a pharmaceutical CDMO offering comprehensive services.
Small Molecule APISmall Molecule Drug ProductOral Solid Dose
R
Ropack Pharma Solutions
Canada
Ropack Pharma Solutions is a pharmaceutical CDMO offering comprehensive services.
Peptide SynthesisSmall Molecule APIFormulation Development
C
Cytiva
Austria
Cytiva is a pharmaceutical CDMO offering comprehensive services.
Peptide SynthesisSmall Molecule APIFormulation Development
Raumedic AG
Czechia
Raumedic AG is a pharmaceutical CDMO offering comprehensive services.
Peptide SynthesisSmall Molecule APIFormulation Development
MIDAS CARE PHARMACEUTICAL PVT. LTD.
India
MIDAS CARE PHARMACEUTICAL PVT. LTD. is a pharmaceutical CDMO offering comprehensive services.
Small Molecule APISmall Molecule Drug ProductOral Solid Dose
Hitech Health
Ireland
Hitech Health is a pharmaceutical CDMO offering comprehensive services.
Small Molecule APISmall Molecule Drug ProductOral Solid Dose
Hebei Meishen Technology Co., LTD.
China
Hebei Meishen Technology Co., LTD. is a pharmaceutical CDMO offering comprehensive services.
Peptide SynthesisSmall Molecule APIFormulation Development
C
China Resources Zizhu Pharmaceutical Co., Ltd.
China
China Resources Zizhu Pharmaceutical Co., Ltd. is a pharmaceutical CDMO offering comprehensive services.
Small Molecule APISmall Molecule Drug ProductOral Solid Dose
Chime Biologics
China
Chime Biologics is a pharmaceutical CDMO offering comprehensive services.
Peptide SynthesisSmall Molecule APIFormulation Development
FreeThink Technologies
United States
FreeThink Technologies is a pharmaceutical CDMO offering comprehensive services.
Peptide SynthesisSmall Molecule APIFormulation Development
Pell Tech Healthcare Pvt. Ltd.
India
Pell Tech Healthcare Pvt. Ltd. is a pharmaceutical CDMO offering comprehensive services.
Small Molecule APISmall Molecule Drug ProductOral Solid Dose
Tosoh Europe B.V.
Japan
Tosoh Europe B.V. is a pharmaceutical CDMO offering comprehensive services.
Small Molecule APISmall Molecule Drug ProductOral Solid Dose
Jungbunzlauer
Austria
Jungbunzlauer is a pharmaceutical CDMO offering comprehensive services.
Peptide SynthesisSmall Molecule APIFormulation Development
Sanochemia Pharmazeutika AG
Austria
Sanochemia Pharmazeutika AG is a pharmaceutical CDMO offering comprehensive services.
Peptide SynthesisSmall Molecule APIFormulation Development
TRADICHEM / TRADICHEM Industrial Services
Spain
TRADICHEM / TRADICHEM Industrial Services is a pharmaceutical CDMO offering comprehensive services.
Small Molecule APISmall Molecule Drug ProductOral Solid Dose
Miltenyi Bioindustries (Miltenyi Biotec)
Germany
Miltenyi Bioindustries (Miltenyi Biotec) is a pharmaceutical CDMO offering comprehensive services.
Small Molecule APISmall Molecule Drug ProductOral Solid Dose
B
BestCo
United States
BestCo is a pharmaceutical CDMO offering comprehensive services.
Peptide SynthesisSmall Molecule APIFormulation Development
Holodiag (HoloDiag)
France
Holodiag (HoloDiag) is a pharmaceutical CDMO offering comprehensive services.
Peptide SynthesisSmall Molecule APIFormulation Development
PharmaResources (Kaiyuan) Co., Ltd.
China
PharmaResources (Kaiyuan) Co., Ltd. is a pharmaceutical CDMO offering comprehensive services.
Peptide SynthesisSmall Molecule APIFormulation Development
Memel Biotech, UAB
Lithuania
Memel Biotech, UAB is a pharmaceutical CDMO offering comprehensive services.
Peptide SynthesisSmall Molecule APIFormulation Development
STC Biologics
United States
STC Biologics is a pharmaceutical CDMO offering comprehensive services.
Small Molecule APISmall Molecule Drug ProductOral Solid Dose
K
Kuehne+Nagel
Switzerland
Kuehne+Nagel is a pharmaceutical CDMO offering comprehensive services.
Small Molecule APISmall Molecule Drug ProductOral Solid Dose
Dr. Paul Lohmann
Germany
Dr. Paul Lohmann is a pharmaceutical CDMO offering comprehensive services.
Peptide SynthesisSmall Molecule APIFormulation Development
EFOR Group
France
EFOR Group is a pharmaceutical CDMO offering comprehensive services.
Peptide SynthesisSmall Molecule APIFormulation Development
S
Scorpius BioManufacturing
United States
Scorpius BioManufacturing is a pharmaceutical CDMO offering comprehensive services.
Peptide SynthesisSmall Molecule APIFormulation Development
Versiti
United States
Versiti is a pharmaceutical CDMO offering comprehensive services.
Small Molecule APISmall Molecule Drug ProductOral Solid Dose
NIBEC Co., Ltd.
South Korea
NIBEC Co., Ltd. is a pharmaceutical CDMO offering comprehensive services.
Peptide SynthesisSmall Molecule APIFormulation Development
Omerin
France
Omerin is a pharmaceutical CDMO offering comprehensive services.
Peptide SynthesisSmall Molecule APIFormulation Development
MEGGLE (Business Unit Excipients)
Germany
MEGGLE (Business Unit Excipients) is a pharmaceutical CDMO offering comprehensive services.
Small Molecule APISmall Molecule Drug ProductOral Solid Dose
PeptART Bioscience GmbH
Switzerland
PeptART Bioscience GmbH is a pharmaceutical CDMO offering comprehensive services.
Small Molecule APISmall Molecule Drug ProductOral Solid Dose
Goodwill Pharma PLC
Hungary
Goodwill Pharma PLC is a pharmaceutical CDMO offering comprehensive services.
Peptide SynthesisSmall Molecule APIFormulation Development
Australian ALKALOIDS Trading PTY LTD
Australia
Australian ALKALOIDS Trading PTY LTD is a pharmaceutical CDMO offering comprehensive services.
Peptide SynthesisSmall Molecule APIFormulation Development
Evergen (formerly RTI Surgical)
United States
Evergen (formerly RTI Surgical) is a pharmaceutical CDMO offering comprehensive services.
Small Molecule APISmall Molecule Drug ProductOral Solid Dose
hameln rds s.r.o.
Slovakia
hameln rds s.r.o. is a pharmaceutical CDMO offering comprehensive services.
Peptide SynthesisSmall Molecule APIFormulation Development
Apeloa Pharmaceutical
China
Apeloa Pharmaceutical is a pharmaceutical CDMO offering comprehensive services.
Peptide SynthesisSmall Molecule APIFormulation Development
Taulia (SAP Taulia)
United States
Taulia (SAP Taulia) is a pharmaceutical CDMO offering comprehensive services.
Peptide SynthesisSmall Molecule APIFormulation Development
Quintara Bio
United States
Quintara Bio is a pharmaceutical CDMO offering comprehensive services.
Peptide SynthesisSmall Molecule APIFormulation Development
V
VanguardPharma Inc.
Mexico
VanguardPharma Inc. is a leading contract development and manufacturing organization headquartered in Mexico. We specialize in Fill/Finish, Clinical Trial Materials with state-of-the-art facilities serving clients globally.
Peptide SynthesisSmall Molecule APIFormulation Development
Frequently Asked Questions
What is the difference between API and drug product?+
API (Active Pharmaceutical Ingredient) is the chemical compound that provides the therapeutic effect. Drug product is the final dosage form (tablet, capsule, injectable) that patients use. API manufacturing involves chemical synthesis; drug product manufacturing involves formulation and filling. Some CDMOs do both; many specialize in one.
How do you evaluate an API CDMO's chemistry capabilities?+
Check their experience with your reaction types (hydrogenation, cryogenic chemistry, Grignard reactions, flow chemistry). Review their equipment (reactors from lab to multi-thousand-liter scale, high-pressure capability, continuous processing). Ask about their analytical support (in-process controls, impurity profiling, polymorph screening). Experience with ICH Q11 regulatory filings demonstrates maturity.
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