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uk-companies-house

UK company lookup by company number

Fonteum renders UK company-register pages from Companies House rows keyed by company number, with status, incorporation date, company type, registered-office address, SIC codes, and source dates.

How do I look up a UK company by its company number?

Use the Companies House company number as the route key. Fonteum reads UK company rows from the Companies House Free Company Data Product and displays company name, number, status, incorporation date, company type, registered-office address, and SIC codes with OGL attribution.

Source: UK Companies House Company Register · License: OGL-UK-3.0. See how Fonteum records source and limitation fields in the provenance method.

Company records

A bounded sample of current United Kingdom public-register rows. Each link opens the company-level record with source, date, license, and field limitations.

URL pattern

Company pages live at /global/uk/company/<company-number>. They render only when a current public-register row is loaded.

Back to global company registers

What’s on file, by the numbers

Platform snapshot · 2026-08-11

13.4Mproviders & companiesProviders, organizations, owners, and facilities on file
26.2Msource-linked factsSource-linked field facts in the dated platform snapshot
90sources with dataDistinct snapshot source IDs with at least one positive record count
73fresh sourcesDistinct source IDs whose latest positive-data snapshot falls within the preceding 45 days
111sources integratedActive registry rows; integration does not establish a load
13state Medicaid jurisdictionsDistinct states represented in the state-exclusions serving table

Integrated, with-data, and fresh-observation counts are separate. No platform-wide source-completeness count is published. Completeness is source-specific and must be evaluated against the named source's expected scope. State coverage is a separate jurisdiction measure.

Source authority is record-specific

Use the issuer named on the record.

Fonteum spans federal, state, and global public publishers. A source page or returned record identifies its issuer and dataset where that metadata is available. A platform registry count does not assign every page to one authority or establish loaded, fresh, or complete coverage.

Browse source records and their stated limitations →

Reproducible by design

Inspect the evidence each published figure actually supplies.

Source and date

Research pages expose the named public file and observation date where those fields are available. Source-file SHA-256 coverage is separate; facts do not currently link deterministically to signatures.

Available derivation

Studies with a retained release and committed derivation link the SQL or method used. Other studies state the evidence and reproduction limits they actually have.

Daily observations

Dated table row-count observations can detect local drift. They do not imply that an upstream publisher released or Fonteum ingested new data that day.

Named medical review

Reviewed by Jennifer Montecillo, MD, medical reviewer. Non-practicing medical reviewer.

Read the full provenance and attestation methodology →

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