Look up GBIN:

Global Brand Identification Number (GBIN) is an independent identifier for brands. GBIN Brand identifiers are used to look up brand related information in a database or to link different brand systems and portals. GBIN also supports brand hierarchy information. The following brand types are part of the GBIN standard:

The uniqueness and universality of the identifier is useful in establishing which brand in one database corresponds to which brand in another database, especially across organizational boundaries.

The GBIN code consists of 10 numbers and uses ISBN/10 checksum logic. At this moment 8170 brands are listed.