Culture Collections

National Collection of Type Cultures (NCTC)

NCTC LogoWelcome to the National Collection of Type Cultures (NCTC), a Culture Collection of Public Health England.

About NCTC

The collection comprises over 5,000 bacterial cultures and over 100 mycoplasmas.

You can either search the collection or browse by alphabetical listing.

Cultures are supplied as freeze-dried ampoules.
A selected range of cultures are also available as NCTC LENTICULE® Discs.


Strains grouped by specific characteristics

Antimicrobial Susceptibility Controls

Antimicrobial Resistance Reference Strains

Control strains for the microbiological testing of water samples for Pseudomonas aeruginosa

Clostridium difficile Strains - Ribotype and Toxin Status

NCTC Reference Strains for Standards for Microbiology Investigations (UK-SMI)

World Data Centre for Microorganisms (WDCM) Reference Strains available from NCTC


Services offered by NCTC
Contract Freeze-Drying


The fastest way to order from us is online





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