The missing
Companies House API
Send a UK company number and get the figures from its filed accounts back as JSON, in the same shape for every company.
{
"company_number": "01234567",
"company_name": "EXAMPLE COMPANY LTD",
"demo": true,
"full_access": "Headline figures only. Create a free account at https://finuk.io for the full accounts, ratios and earlier years.",
"latest_period": {
"turnover": 4860000,
"profit_before_tax": 414000,
"total_assets": 2500000,
"net_assets": 1440000,
"total_current_assets": 1890000,
"total_current_liabilities": 820000,
"employees": 38,
"start_date": "2025-01-01",
"end_date": "2025-12-31"
}
}7.7M
Companies
39.9M
Sets of accounts
2007
Earliest periods
Next day
New filings added
UK Company Financial Data Made Simple
FinUK reads the accounts companies file at Companies House and turns each set into the same fields, whichever software or accountant produced it.
Historical Financials
Accounting periods from 2007 onwards, with earlier years in every response.
Company Records
The same key reads the Companies House register.
Data Integration
Pull the figures into your own app, CRM, spreadsheet or warehouse with one API key.
A full set of accounts in one response
Example Company Ltd (fictional) shows what a financials request returns. The figures are made up, but they add up and match the JSON above.
EXAMPLE COMPANY LTD
Company Information
Financial Health
Income Statement
Balance Sheet Summary
Assets
Liabilities
Key Financial Ratios
Profitability
Liquidity
Earlier years
Try it on a company you know
Create a free Raq.com account and FinUK is switched on for you. The free trial includes 10 lookups a month, with no card needed.
Start for freeIncluded with FinUK
Profit and loss, balance sheet and equity
Earlier years in the same response
Margins, liquidity and gearing ratios
Accounts filed only as a PDF, read on request
Company profiles, officers and charges
Search and usage checks that cost nothing
From sign-up to your first request
FinUK runs on Raq.com, so your account, API keys and allowance are all managed there.
Create a free Raq.com account
Sign up from this page and FinUK is switched on and pinned in your workspace. The free trial includes 10 lookups a month.
Create an API key
In FinUK's API panel choose Create API Key and copy the key when it appears. It's shown once and can only read FinUK data.
Send your first request
Send the key in an X-API-Key header. Every response says how many lookups you have left this month.
GET /api/v1/finuk/companies/{number}/financials
Included with every Raq.com plan
FinUK isn't sold on its own. Each Raq.com plan comes with a monthly allowance of lookups, shared by everyone in the workspace.
Included with Raq.com
A lookup is one request for one company. Searching and checking your usage are free.
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Free trial10 lookups a month
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Starter · £29 a person a month2,900 lookups a month
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Professional · £45 a person a month4,500 lookups a month
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Business · £200 a person a month20,000 lookups a month
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Enterprise · £500 a person a month50,000 lookups a month