Company data API

United Kingdom company registry API

Programmatic access to United Kingdom companies from the national business register, as indexed on Biznopedia: search by name and filters, read firmographic profiles, and reveal contact values only through the metered endpoints.

United Kingdom recordsLive count unavailablePart of 208 million records across 11 national registries
Free tier100API calls per month
AuthenticationAPI keyX-Api-Key header
Contact valuesMeteredReveal endpoints only — never in search

Honest field coverage

What the API returns for United Kingdom

The verified field-by-field truth for United Kingdom documents. Unavailable fields return null — never an estimate.

Field coverage of the company data API for United Kingdom
FieldAvailableNotes
Registry identity Yes Legal name, jurisdiction and registry presence.
Employee counts Yes Exact headcount and bands where reported.
Revenue (USD) Yes Reported revenue and sales bands.
Website / domain No Not reported by this register in the index.
Web authority (OpenRank) No United States documents only.
NAICS industry codes No Populated primarily for United States documents.
Contact presence flags Yes hasEmail / hasPhone / hasDomain booleans; contact values only via the metered reveal.
Coverage truthEmployees US/GB/NO · Revenue US/GB · Domain US/FI/PL/NO · Web authority US only

Request & response

Search United Kingdom companies

Authenticate with the X-Api-Key header from the Developer console. The response below is an illustrative record in the real masked-hit shape for United Kingdom — note which fields this register reports and which are honestly null. Contact data appears only as presence booleans.

curl -H "X-Api-Key: cdl_live_…" \
  "https://biznopedia.com/api/v1/search?country=GB&q=example"
{
  "companyClusterId": 123456789,
  "companyName": "EXAMPLE TRADING LIMITED",
  "country": "GB",
  "city": null,
  "naics": null,
  "naicsDesc": null,
  "foundedYear": 2012,
  "exactEmployees": 42,
  "employeeBand": "20 to 49",
  "revenueUsd": 3500000,
  "salesBand": "$1 to 5 million",
  "normalizedDomain": null,
  "openRank": null,
  "identityGrade": "B",
  "hasEmail": true,
  "hasPhone": false,
  "hasDomain": false
}
ShapeIllustrative values in the real response shape — hasEmail/hasPhone/hasDomain are booleans; contact values are served only via the metered reveal endpoints

Start free

100 free API calls every month

Prototype against United Kingdom data on the free tier, then meter against prepaid API credits as you scale. Mint and revoke keys — and watch usage call by call — in the Developer console.

Other registries

Company data API by country