Data structure


ROR Schema v1

This page documents ROR metadata schema v1. For documentation of ROR metadata schema v2, see You can also read more about ROR schema versions and a summary of what's new in ROR Schema 2.0.

Version 1 of ROR's data structure (aka its "metadata schema" or "JSON schema") is based on Digital Science's GRID, which provided the original seed data for the registry. GRID retired its public releases as of 16 Sep 2021, and ROR began managing its data independently from GRID in March 2022. The full JSON schema used for generating and validating ROR records is available at

The current ROR metadata schema inherited from GRID in 2019 is now unofficially known as version 1.0. After two rounds of community feedback in 2022/2023, metadata schema version 2.0 was developed and launched in April 2024. Version 1 of the ROR schema will continue to be available in the data dump and API at least through April 2025. Read more about ROR's plans for metadata schema versioning.


Below are listed the top-level fields (or "elements") in the ROR metadata schema along with their names, definitions, types, whether the field is required, and whether a value in the field is required. Queries to the ROR API will return all fields regardless of whether they have a value. JSON will include null values and empty arrays and objects if there is no value available for the given organization.


New status & relationship type values

Beginning 1 Dec 2022, ROR supports new values inactive and withdrawn in status and Predecessor and Successor in relationships.type. Previously, all records had a status of active and relationships types were limited to Parent, Child, and Related. See updated field descriptions for status and relationships below and 2022-12-01 changelog post for more details.

Field nameDefinitionTypeRequiredValue requiredRemarks
idUnique ROR ID for the organizationStringTRUETRUE
nameThe primary name of the organizationStringTRUETRUE
email_addressA contact mail address for the organizationStringFALSEFALSEDeprecated field - Not actively curating
ip_addressesIP address(es) associated with the organizationArrayFALSEFALSEDeprecated field - Not actively curating
establishedYear the organization was established (CE)NumberTRUEFALSE
typesOrganization typeArrayTRUETRUEAllowed types: Education, Healthcare, Company, Archive, Nonprofit, Government, Facility, Other
relationshipsRelated organizations in RORArrayTRUEFALSEAllowed relationship types: Parent, Child, Related, Predecessor, Successor
addressesThe organization's locationArrayTRUETRUE
linksOfficial website of the organizationArrayTRUEFALSE
aliasesOther names the organization is known byArrayTRUEFALSE
acronymsAcronyms or initialisms for the organization nameArrayTRUEFALSE
statusWhether the organization is active or notStringTRUETRUEAllowed values: Active, Inactive, Withdrawn
wikipedia_urlWikipedia link for the organizationStringTRUEFALSE
labelsName(s) for the organization in other language(s)ArrayTRUEFALSE
countryCountry where organization is locatedObjectTRUETRUE
external_idsOther identifiers for the organizationArrayTRUEFALSEAllowed external IDs: Crossref Funder ID (FundRef), ISNI, Wikidata. Other external IDs not actively curated include GRID, OrgRef, HESA, UCAS, UKPRN, CNRS.


All available fields and sub-fields

See also the complete alphabetical list of All ROR fields and sub-fields in v1 of the ROR metadata schema.

Definitions and policies

Policies and expanded definitions for top-level metadata elements. See also ROR Metadata Policies on GitHub.

* indicates a value is required


The ROR ID for the organization, created and assigned by ROR. See ROR identifier pattern for more information on how the ROR ID is generated and structured.


The official name of the organization used for affiliation purposes (this may be different than the organization's legal name).

Only one name can be included in the primary name field. ROR metadata includes additional fields (aliases, labels, acronyms) for other versions of an organization’s name so that these versions of the name can also be represented in the metadata record and so that the organization can be discoverable in the registry no matter which version of a name is input by a user in searches and API queries.

The primary name field defaults to English when an English version of an organization’s name is available, but primary names may also be in non-English languages.

ROR metadata can support multiple languages and character sets. However, the primary name field uses Latin (Roman) characters only.

The primary data source for the organization name and formatting thereof is the organization's website.


This field is deprecated and is empty or null in ROR records. It will be removed in version 2 of the ROR schema.


This field is deprecated and is empty or null in ROR records. It will be removed in version 2 of the ROR schema.


The year the organization was established, written as four digits (YYYY).


The type of organization based on a controlled list of categories. An organization always has a type. ROR metadata can support multiple types for a given organization, but in most cases, there will just be one type associated with the organization.

Based on the available information about the organization, curators will use their judgement in determining the appropriate category to assign.

Allowed types:

Education: A university or similar institution involved in providing education and educating/employing researchers

Healthcare: A medical care facility such as hospital or medical clinic. Excludes medical schools, which should be categorized as “Education”.

Company: A private for-profit corporate entity involved in conducting or sponsoring research.

Archive: An organization involved in stewarding research and cultural heritage materials. Includes libraries, museums, and zoos.

Nonprofit: A non-profit and non-governmental organization involved in conducting or funding research.

Government: An organization that is part of or operated by a national or regional government and that conducts or supports research.

Facility: A specialized facility where research takes place, such as a laboratory or telescope or dedicated research area.

Other: Use this category for any organization that does not fit the categories above.


One or more organizations that the organization is related to.

Five types of relations are supported: Parent, Child, Related, Predecessor and Successor. An organization can have multiple relationships but each relationship must be classified as Parent, Child, Related, Predecessor or Successor.

Inverse relationships

Parent, Child and Related types must have corresponding relationships in the related record, except in the case of records with status inactive or withdrawn. For example, if Organization A's record contains a relationship to Organization B with type Parent (and both records have status active), Organization B's record must contain a corresponding relationship to Organization A with type Child.

Predecessor and Successor types may optionally contain corresponding relationships in the related records, but they are not required. For example, if Organization A becomes inactive and contains a relationship to Organization B with type Successor, Organization B may or may not contain a corresponding relationship to Organization A with type Predecessor.

Relationships to inactive records

Records with status active cannot contain relationships to records with status inactive or withdrawn, except for relationships with type Predecessor.

Records with status inactive or withdrawn may have relationships to records with status active for the sake of preserving the record data at the time the record status was changed to inactive or withdrawn. These are not considering current relationships and do not require corresponding relationships in related records.

Successor organizations

Records with a status of inactive or withdrawn may have one or more successor organizations listed in their relationships. Successor relationships indicate that another organization continues the work of an organization that has become inactive or has been withdrawn from the registry. If an organization simply changes its name, it will not receive a Successor; the existing ROR record for the organization will simply be modified with the new name in the name field and the previous name in the aliases field.

Depending on your use case, you may wish to update references to inactive ROR records in your system(s) to the corresponding Successor organization(s).


Location details for the organization. Location data comes from GeoNames.

A city or specified location is required to populate corresponding data from GeoNames, such as latitude/longitude coordinates, state/province/region, and country. Note too the existence of the separate top-level country element, which contains the name of the organization's country and its two-letter ISO country code.

GeoNames data is licensed under a Creative Commons Attribution 4.0 license.


The primary website of the organization. Only one URL should be associated with the record.

In the case of websites with translated versions that use a language suffix like “/en”, the generic URL (without the language suffix) is used as long as the website resolves without it. Otherwise, the English version will be used.


Used for one or more alternate forms of the organization name that may be used for affiliation purposes but are not considered the primary name according to official organization policy and/or for the purposes of ROR metadata handling. This field may include both current and historical name variants. ROR does not currently identify which aliases are current versus historical, but future iterations of the ROR schema may differentiate between the two.


One or more official acronyms or initialisms for the organization, typically consisting of the first letters of the words in the organization name (e.g., UCLA for “University of California, Los Angeles”).


Indication of whether the organization is active or not, based on a controlled list of status values. Allowed status values:

active: An organization that is actively producing research outputs.

inactive: An organization that has ceased operation or producing research outputs.

withdrawn: A record that was created in error, such as a duplicate record, or a record that is not in scope for the registry.

A record with a status of inactive or withdrawn may have one or more Successor organizations listed in its relationships. Successor relationships indicate that another organization continues the work of an organization that has become inactive or has been withdrawn. See relationships for more information.

Note: Prior to 1 Dec 2022, all records had a status of active. Read more about this change in the Dec 1 release notes


A Wikipedia page for the organization. Only one URL should be associated with the record.


Displays versions of the organization name in one or more languages other than that used in the primary name field, with a corresponding language tag based on the two-letter ISO-639 code.


Includes the name and the two-letter ISO-3166 country code for the organization's primary country.


Other identifiers for the organization (if available).

ROR maps its IDs to the following other identifiers: GRID, Wikidata, ISNI, and Crossref Funder Registry (formerly “Fundref”).

There are additional IDs in the existing ROR metadata that are primarily legacy identifiers. These will not be actively curated in new records for the time being: OrgRef, UCAS, CNRS, HESA, UKPRN.

Example record

See the JSON structure in an example organization record.

   "name":"PSL Research University",
         "label":"ESPCI Paris",
         "label":"Subcellular Structure and Cellular Dynamics",
         "label":"École Pratique des Hautes Études",
               "attribution":"Data from under a CC-BY 3.0 license",
               "name":"ÎLE DE FRANCE",
               "name":"Île de France",
      "Université PSL"
         "label":"Université de recherche Paris Sciences et Lettres",
            "0000 0004 1784 3645"