Know the legal entity. Understand the business.

5.48m

companies on the total register¹

UK-wide

England, Scotland, Wales & Northern Ireland

Stable

Versioned schemas and clear change logs

Traceable

Field-level source and retrieval metadata

¹ Companies House total register at 31 March 2026.

THE DATA PRODUCT ONE CONNECTED RECORD

One company.
Six useful layers.

Add only the data your workflow needs. Every layer follows the same conventions, authentication and source metadata.

02 / DATA LAYER

Know what the company actually does.

Connect a verified domain to the legal entity, then add website-derived descriptions, offerings, customer segments and delivery models.

Verified domainsWhat they doOfferings & customersBusiness classification

response.json

GETGET /v1/companies/DEMO0001/intelligence

{
  "company_number": "DEMO0001",
  "legal_name": "LATTICEWAY SYSTEMS LTD",
  "domain": "latticeway.example",
  "what_they_do": "AI workflow automation for finance teams",
  "organisation_type": "product_vendor",
  "sector": "Finance Software",
  "customer_segments": ["mid_market", "enterprise"],
  "delivery": ["saas_platform", "api"],
  "entity_match": {
    "verified": true,
    "confidence": 0.98
  }
}

THE UNGLAMOROUS WORK ALREADY DONE

From registry and web
to production payload.

Legal records and real-world operating signals in. Product features out. We keep the matching, joins and parsing behind one stable contract.

CONNECTED SOURCES

CPCompany profilesIdentity & status

WDVerified websitesOfferings & markets

ARAccounts filingsiXBRL & documents

PSPSC recordsOwnership & control

FHFiling historyChanges over time

UKDL PIPELINE

NORMALISE PARSE MATCH LINK TRACE

OUTPUT

{

"identity": stable,

"business": described,

"financials": typed,

"ownership": linked,

"provenance": attached

}

Predictable JSON

Normalised by default

Dates, addresses, SIC codes, money and company types use consistent formats.

Missing means missing

Undisclosed values return an explicit state—not a guess dressed up as data.

Designed to evolve

Versioned schemas and additive changes keep your integration boring.

PROVENANCE BUILT INTO THE RESPONSE

Know what you know.

Every official fact and enriched field can be traced to its source, match evidence and retrieval time. Because “current” should never be a mystery.

✓ Source record attached
✓ Retrieval timestamp included
✓ Availability state made explicit

FIELD PROVENANCE · EXAMPLEcompany/DEMO0001

Normalised field Source Reference

company.status

Company profile

registry/latest

intelligence.what_they_do

Company website

latticeway.example

intelligence.entity_match

Domain map

verified: 0.98

accounts.latest

Annual accounts

period: 2025-03

USE CASES BUILT FOR REAL WORKFLOWS

Make company data
do something useful.

One data foundation for onboarding, go-to-market, risk, research and AI-powered products.

01 ONBOARDING

Support faster KYB checks

Confirm legal identity, active status, officers and ownership signals at the point of onboarding.

/companies/{number}

02 GO-TO-MARKET

Build the market by what companies do

Segment legal entities by their real offerings, customers and delivery model—not just a broad SIC code.

/companies/{number}/intelligence

03 RISK & RESEARCH

Screen a market, not a spreadsheet

Filter by location, industry, age and financial signals to build a repeatable research workflow.

/companies/query

04 AI PRODUCTS

Ground agents in the real business

Join source-backed legal facts to website intelligence, so models know both who the entity is and what it does.

/companies/{number}/context

QUICKSTART THREE STEPS, ONE MINUTE

Your first clean company record.

Standard bearer authentication. Sensible HTTP codes. Predictable responses in every environment.

01Create an API keyStart in the free sandbox.
02Send one requestUse a company number as the stable ID.
03Ship the featureAdd financials, people or filings when needed.

curl "https://api.ukdatalayer.com/v1/companies/DEMO0001" \
  -H "Authorization: Bearer ukdl_live_your_key"

200 OK application/json 48 ms

PRICING NO CREDIT CALCULUS

Start free.
Scale without surprises.

01SANDBOX

Explore

^£0 / forever

For prototyping a lookup and learning the schema.

Get a sandbox key ↗

✓ 500 requests each month
✓ Company profile & search
✓ Stable sandbox companies
✓ Community support

Build

^£79 / month

Billed monthly

For live products that need the complete company record.

Choose Build ↗

✓ 25,000 requests each month
✓ All six data layers
✓ Change webhooks
✓ Email support

03HIGH VOLUME

Scale

^£299 / month

Billed monthly

For data-heavy workflows and larger product teams.

Choose Scale ↗

✓ 250,000 requests each month
✓ Bulk enrichment endpoints
✓ 10 scoped API keys
✓ Priority support

04 / ENTERPRISE

Need a complete dataset, custom limits or an SLA?

Tell us what you are building. We will shape the access around the workload.

Talk to us

Compare allowances and effective request costs

FAQ THE USEFUL ANSWERS

Before you make the first call.

Still working through a data question? Ask us directly ↗

01 Where does the data come from?

The legal record is built from official Companies House profiles, filings, accounts and PSC records. Verified company websites add operating descriptions, offerings and customer segments, with source and retrieval metadata attached.

02 Why not use the Companies House API directly?

03 Do all companies disclose turnover and profit?

04 Can I test without using production data?

05 Can I get bulk data or monitor changes?

START BUILDING THE SANDBOX IS READY

Stop maintaining company-data plumbing.

Get your first clean UK company response in under five minutes.

Get a free API key Read the docs

One company.Six useful layers.