The StrainSelect database is provided by Second Genome and contains a collection of information from multiple sources for known strains of bacteria and archaea. Below is a zip file containing the 2014-02-20c version. Once unzipped, you'll find a README file, and a csv table connecting NCBI sequence identifiers to Second Genome's strain identifiers. For commercial use of StrainSelect or if you would like to utilize the most current version of StrainSelect please contact us.