Peptide API Manufacturers in Switzerland

5 companies are listed as peptide API manufacturers in Switzerland. 3 hold active US Drug Master Files for peptide APIs, most often for Calcitonin, Leuprolide, Liraglutide. 4 have a regulator record of GMP manufacturing. 4 score High (90 or more).

Ordered by score. Scores follow the published rules and are not affected by paid placement. Updated 2026-11-13.

Peptide API Manufacturers in Switzerland (5)

Bachem Holding AG
Bubendorf, Switzerland
High
GMPCOA

Swiss peptide and oligonucleotide CDMO with GMP plants in Europe and the US.

Model
CDMO
Manufacturer?
Yes
GMP CertifiedIn-House ProductionInternational Shipping
Lonza (Peptides)
Visp, Switzerland / USA
High
GMPCOAISO

Peptide, HPAPI and bioconjugate manufacturing within Lonza's small-molecule business.

Model
CDMO
Manufacturer?
Yes
GMP CertifiedISO CertifiedInternational Shipping
PolyPeptide Group
Baar, Switzerland (sites in SE, BE, FR, US, IN)
High
GMPCOA

Peptide-focused CDMO running GMP manufacturing sites on three continents.

Model
CDMO
Manufacturer?
Yes
GMP CertifiedIn-House ProductionInternational Shipping
Senn Chemicals
Dielsdorf, Switzerland
High
GMP

Privately owned Swiss CDMO near Zurich, in business since 1963, that makes peptide APIs, peptide fragments and amino acid derivatives by solid- and solution-phase synthesis.

Model
CDMO
Manufacturer?
Yes
GMP CertifiedIn-House ProductionCDMOPeptide APIsMade in Switzerland
Medium

Swiss Debiopharm plant in Martigny making triptorelin sustained-release products; US DMF for triptorelin pamoate microgranules.

Model
Manufacturer
Manufacturer?
Yes
In-House ProductionWholesale

More in Switzerland

Peptide APIs with US DMFs held by companies in Switzerland

Peptide API Manufacturers in other countries

Frequently asked questions

How many peptide API manufacturers in Switzerland are listed?

5 companies. Each listing shows location, business model, documentation and a score from 0 to 100.

Which peptide API manufacturers in Switzerland score highest?

By score: Bachem Holding AG (95), Lonza (Peptides) (95), PolyPeptide Group (95), Senn Chemicals (95), Debiopharm Research & Manufacturing SA (75). Scores measure checkable evidence, not product quality, and paid placement does not change them.

Which peptide API manufacturers in Switzerland hold US Drug Master Files?

Bachem Holding AG, PolyPeptide Group and Debiopharm Research & Manufacturing SA hold active Type II DMFs for peptide APIs in FDA's DMF list. A DMF is a confidential file submitted to FDA; FDA does not approve DMFs, but drug applications can reference them.

How should I check a supplier before ordering?

Confirm the legal entity, ask for lot-specific certificates of analysis that the testing lab can verify, check FDA warning letters and import alerts, and for GMP material ask for regulator inspection records rather than marketing claims.