| --- |
| license: mit |
| language: |
| - en |
| - fr |
| - de |
| tags: |
| - entity-resolution |
| - record-linkage |
| - blocking |
| - company-names |
| size_categories: |
| - 10M<n<100M |
| configs: |
| - config_name: companies |
| description: One row per company, in the shared canonical schema, split by source. |
| data_files: |
| - split: fr |
| path: data/canonical/fr/primary/**/*.parquet |
| - split: gb |
| path: data/canonical/gb/primary/**/*.parquet |
| - split: de |
| path: data/canonical/offeneregister/primary/**/*.parquet |
| - split: ie |
| path: data/canonical/ie/primary/**/*.parquet |
| - split: gleif |
| path: data/canonical/gleif/primary/**/*.parquet |
| - split: wikidata |
| path: data/canonical/wikidata/primary/**/*.parquet |
| - config_name: names |
| description: Other names each company is known by, split by source. |
| data_files: |
| - split: fr |
| path: data/canonical/fr/names/*.parquet |
| - split: gb |
| path: data/canonical/gb/names/*.parquet |
| - split: de |
| path: data/canonical/offeneregister/names/*.parquet |
| - split: wikidata |
| path: data/canonical/wikidata/names/*.parquet |
| - split: gleif |
| path: data/canonical/gleif/names/*.parquet |
| - config_name: matched |
| description: GLEIF rows carrying a link into a national register, split by jurisdiction. |
| data_files: |
| - split: de |
| path: data/matched/gleif/primary/jurisdiction_code=de/*.parquet |
| - split: fr |
| path: data/matched/gleif/primary/jurisdiction_code=fr/*.parquet |
| - split: gb |
| path: data/matched/gleif/primary/jurisdiction_code=gb/*.parquet |
| - split: ie |
| path: data/matched/gleif/primary/jurisdiction_code=ie/*.parquet |
| - config_name: samples |
| description: About 16k rows per source, to look at before downloading a whole one. |
| data_files: |
| - split: fr |
| path: data/canonical/fr/sample.parquet |
| - split: gb |
| path: data/canonical/gb/sample.parquet |
| - split: de |
| path: data/canonical/offeneregister/sample.parquet |
| - split: ie |
| path: data/canonical/ie/sample.parquet |
| - split: gleif |
| path: data/canonical/gleif/sample.parquet |
| - split: wikidata |
| path: data/canonical/wikidata/sample.parquet |
| - config_name: duplicates |
| description: Rows dropped as duplicates, kept for inspection; two columns more than a company row. |
| data_files: |
| - split: gleif |
| path: data/canonical/gleif/gleif-duplicates-*.parquet |
| - split: ie |
| path: data/canonical/ie/ie-duplicates-*.parquet |
| --- |
| |
| # Company registers in one schema, with name variants and cross-register links |
|
|
| Six public company sources mapped into one column set, with the name variants |
| each register publishes and the GLEIF rows that carry a link into a national |
| register. Built for blocking and record linkage. |
|
|
| It holds: |
|
|
| - 884,070 Wikidata companies, extracted from the 145 GB entity dump by the |
| `P279` subclass closure beneath *company*. |
| - Six registers on one column set, 28.7M companies in total. |
| - 8.1M name variants, as each register publishes them. |
| - 645,437 GLEIF rows carrying a link into a national register. |
|
|
| ## What is here |
|
|
| | Source | Rows | Names | Jurisdictions | Snapshot | |
| | --- | --- | --- | --- | --- | |
| | `fr`, INSEE SIRENE | 12,930,798 | 1,397,729 | `fr` | 2026-06-01 | |
| | `gb`, Companies House | 5,698,275 | 645,313 | `gb` | 2026-06-01 | |
| | `offeneregister`, German Handelsregister | 5,305,727 | 1,346,089 | `de` | 2026-08-25 | |
| | `gleif`, Global LEI index | 3,076,432 | 3,638,577 | 308 | 2026-06-21 | |
| | `wikidata` | 884,070 | 1,054,902 | 73 | 2026-07-16 | |
| | `ie`, CRO Ireland | 817,761 | — | `ie` | 2026-06-21 | |
|
|
| Each source is the publisher's own bulk file, taken once on the date given. |
|
|
| ## Layout |
|
|
| ``` |
| data/canonical/<source>/primary/jurisdiction_code=<code>/part-*.parquet one row per company |
| data/canonical/<source>/names/*.parquet other names for those companies |
| data/canonical/<source>/sample.{parquet,jsonl,csv} ~16k rows, the same rows in three formats |
| data/canonical/<source>/*-duplicates-*.parquet rows dropped as duplicates, kept for inspection |
| data/matched/gleif/primary/jurisdiction_code=<code>/part-*.parquet GLEIF rows carrying a national-register link |
| data/prepare/wikidata/wikidata-companies.jsonl the companies drawn out of the Wikidata dump |
| ``` |
|
|
| In the CSV the two list columns, `alternative_names` and `previous_names`, are |
| joined with `|`; the JSON Lines copy keeps them as lists. |
|
|
| ### The Wikidata extract |
|
|
| `wikidata-companies.jsonl` is the raw extract: 884,070 entities in 612 MB, one |
| JSON object per entity as the dump holds it, before any mapping. It was taken |
| from the full 145 GB entity dump in a single pass. |
|
|
| An entity is kept when its `P31` (instance of) or `P1454` (legal form) names a |
| Q-code in the `P279` subclass closure beneath *company*, 49,176 codes. |
| Everything under `data/canonical/wikidata/` is built from this file, which |
| also carries the fields the canonical schema does not keep. |
|
|
| `primary` is partitioned by `jurisdiction_code`, so one country can be read |
| without the rest: |
|
|
| ```python |
| import polars as pl |
| |
| gb = pl.read_parquet("data/canonical/gb/primary/jurisdiction_code=gb/*.parquet") |
| names = pl.read_parquet("data/canonical/gb/names/*.parquet") |
| ``` |
|
|
| ## Columns |
|
|
| ### A company (`primary`, 21 columns) |
|
|
| Column names follow the [OpenCorporates company |
| object](https://api.opencorporates.com/documentation/API-Reference#Companies) |
| where one fits. |
|
|
| | Column | Description | |
| | --- | --- | |
| | `system_uri` | This row's identity, `<source>://<id>`, e.g. `gb://03909510` | |
| | `jurisdiction_code` | Where the company is registered | |
| | `company_number` | The register's own identifier for it | |
| | `name` | Its legal name | |
| | `alternative_names`, `previous_names` | Other names, where the register gives them inline | |
| | `company_type` | Legal form, as the register words it | |
| | `current_status`, `inactive` | Whether it is live, as the register words it | |
| | `incorporation_date`, `dissolution_date` | ISO dates where parsed | |
| | `branch`, `branch_status` | Whether the row is a branch rather than a company | |
| | `registered_address_in_full` | The address as one string, where published | |
| | `registry_url` | Its page in the register | |
| | `lei` | Legal Entity Identifier, where one resolves | |
| | `match_uri` | The same company in another source, where one is known | |
| | `opencorporates_url`, `vat`, `tax_id` | Reserved, always null | |
| | `metadata_generated_utc` | When this row was written here | |
|
|
| ### A name (`names`, 9 columns) |
|
|
| One row per name a company is also known by. |
|
|
| | Column | Description | |
| | --- | --- | |
| | `system_uri` | This name's own identity, `name://<source>/<id>/<hash>` | |
| | `source_uri` | The company it belongs to | |
| | `name` | The name itself | |
| | `name_type` | What kind: `previous`, `alias`, `official`, `short`, `acronym`, ... | |
| | `source_type` | What the register called that kind, before it was mapped | |
| | `language_code`, `jurisdiction_code`, `id`, `derivation_note` | Where it came from | |
|
|
| ### A cross-register link (`data/matched/gleif`) |
|
|
| The same 21 columns, holding the 645,437 GLEIF rows whose `match_uri` points |
| at a company in `gb`, `ie`, `fr` or `de`. |
|
|
| ## How it was built |
|
|
| Each source's bulk file was downloaded, split into shards, and mapped into the |
| columns above, with per-source rules for the parts that differ: how a company |
| number is spelled, which field is the legal name, which value means dissolved. |
| Duplicate rows were removed and kept separately rather than dropped silently. |
| Names were gathered from whichever field each register publishes them in and |
| given one shared vocabulary of name types. |
|
|
| Names are as the registers publish them: not normalised, lowercased or |
| stripped of their legal form. |
|
|
| ## Known gaps |
|
|
| - **`ie` has no names file.** Ireland's bulk download publishes one name per |
| company, so there are no variants to collect. |
| - **`wikidata` rows with no jurisdiction** sit in a |
| `__HIVE_DEFAULT_PARTITION__` partition. |
| - **Every source is one snapshot**, taken on the date in the table. Companies |
| registered, renamed or dissolved since are not here. |
| - **`match_uri` is only as complete as GLEIF is.** A company with no LEI has no |
| link, so absence of a link is not evidence that no match exists. |
| |
| ## Licensing information |
| |
| Each source keeps its own terms. What each publisher states, in its own words, |
| with the page it says it on. Those pages are the terms; this table points at |
| them. |
| |
| | Source | Licence, as the publisher states it | Stated on | |
| | --- | --- | --- | |
| | `fr` | [Licence Ouverte / Open Licence 2.0](https://www.etalab.gouv.fr/licence-ouverte-open-licence) | [data.gouv.fr](https://www.data.gouv.fr/en/datasets/base-sirene-des-entreprises-et-de-leurs-etablissements-siren-siret/) | |
| | `gb` | "All content is available under the Open Government Licence v3.0, except where otherwise stated" | [Companies House data products](https://www.gov.uk/guidance/companies-house-data-products) | |
| | `offeneregister` | "Die Daten können unter der Creative Commons Attribution License 4.0 mit Attribution an OpenCorporates weiterverwendet werden" | [offeneregister.de](https://offeneregister.de) | |
| | `gleif` | "The data available through the Access Service are provided under the CC0 licence" | [LEI data terms of use](https://www.gleif.org/en/meta/lei-data-terms-of-use) | |
| | `wikidata` | "All structured data from the main, Property, Lexeme, and EntitySchema namespace is available under the Creative Commons CC0 License" | [Wikidata:Database download](https://www.wikidata.org/wiki/Wikidata:Database_download) | |
| | `ie` | [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/) | [CRO open data](https://opendata.cro.ie/dataset/companies) | |
| |
| Two publishers ask for attribution in particular words: |
| |
| - **German data:** attribution to OpenCorporates. |
| - **Irish data:** "Contains Irish Public Sector Data licensed under a Creative Commons Attribution 4.0 International (CC BY 4.0) licence". |
| |
| The `license` field at the top of this card is the repository's own metadata |
| field and restates none of the above. Statements read from those pages on |
| 2026-09-23; publishers change their terms, so the pages are the current source. |
| |
| ## What is in the rows |
| |
| These are public company registers, so the rows carry what registers carry: |
| company names, registered addresses, and legal forms. |
| |
| French sole traders are not among them. SIRENE's legal category `1000`, |
| *Entrepreneur individuel*, is a natural person rather than a company, and |
| those rows are dropped when the French source is mapped into this schema: no |
| row under `fr` carries that category. |
| |
