Information about organizations is more valuable when it includes:

  • An unambiguous organization identifier

  • A clear name for the organization

  • Other identifying information

org-id.guide provides a register organization identifier lists that delivers the easiest, quickest and most accurate way for open data publishers to locate organisation identifiers.

Why use org-id.guide


org-id.guide assigns a code that can be used to refer to each list. It ranks the quality of the lists based on the stablility and accuracy and the availability of open data.

The higher the quality, the more likely it is that the identifiers can be used to link up information across datasets.


The org-id.guide web application provides a search tool to locate relevant identifier lists. Search results are ranked by relevance.

The more relevant a list, the more likely that it will contain the organization that a user is looking for.


Each entry in org-id.guide has detailed meta-data and information that can be used to locate the identifiers that the list contains, whether through online search or open datasets.

We use this meta-data to recommend use of lists that have the best chance of making org-id connections between different datasets.


org-id.guide is a living list - improved by a coalition of open data standards projects. You can help improve the coverage and depth of the org-id.guide register. Changes go through a simple governance process.

What org-id.guide is not

org-id.guide does not directly maintain organisation identifiers itself. Instead, it signposts to existing sources of identification: helping data publishers and users choose the best identifier schemes to use for their purpose.

This handbook

You are viewing the org-id.guide handbook. It contains information on how the org-id.guide register is maintained.