Biological Resource Centres are the most reliable sources for authenticated type strains, often holding thousands of verified deposits.

: Based in Chandigarh, India, this facility houses about 20,000 microbial cultures used for research and teaching. Commercial & Industrial Suppliers

For specific applications like industrial wastewater treatment, agriculture, or pre-prepared laboratory kits, commercial vendors offer standardized products.

: Located in the UK, it maintains around 6,000 bacterial strains of medical and veterinary importance.

: A leading European collection with over 23,000 accessions including bacteria, fungi, and plasmids.

: A premier global source based in the USA, holding approximately 18,500 strains of Bacteria and Archaea.