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Peptide testing labs: who runs the COAs (2026)

The analytical laboratories named on research-peptide certificates of analysis, what methods they run and whether they accept samples directly from buyers.

PWBy PeptideTech EditorsReviewed Sep 16, 2026Prices checked weeklyHow we verify →
Laboratory profiles are compiled from public information and vendor statements. Turnaround times, prices and current service offerings are not verified by PeptideTech — confirm directly with the laboratory before sending a sample.
Janoshik AnalyticalSlovakia
HPLCLC-MSMass spectrometry
Accepts: Vendors, Individuals

Widely cited by research-peptide vendors for third-party purity and identity testing. Accepts samples sent directly by buyers as well as by vendors.

MZ BiolabsUnited States · Arizona
HPLCMass spectrometryPeptide mapping
Accepts: Vendors

US analytical laboratory offering peptide identity and purity work for manufacturers and suppliers.

Colmaric AnalyticalsUnited States
HPLCLC-MS
Accepts: Vendors, Individuals

US laboratory that publishes peptide purity testing results; used by vendors and by buyers submitting their own samples.

Simec AGSwitzerland
HPLCLC-MSQuantitative NMR
Accepts: Vendors

Swiss contract laboratory that performs analytical testing for pharmaceutical and research suppliers.

Testing questions

Some laboratories accept samples direct from buyers and some only work with vendors. Each profile below states which. 2 of 4 listed accept individual submissions.