Find the exact UK companies
you're looking for.

Custom datasets and APIs built from Companies House financial and ownership data. Identify prospects, acquisition targets, investment opportunities and industry trends without spending hours searching manually.

Get a custom dataset → Book a free call
Custom dataset - Manufacturing, Scotland, Assets £1M–£20M
CompanyAssetsGrowthD/EOwnerPSC
Caledonian Precision Ltd£4.2M+18%0.42IndividualD. Mackenzie, 58
Grampian Fabrications Ltd£7.8M+6%0.61IndividualA. Fraser, 64
Forth Valley Components£2.1M-3%1.12CorporateNexus Group Holdings
Highland Tooling Co Ltd£11.4M+24%0.28IndividualS. Reid, 51
Borders Engineering Ltd£3.3M+11%0.55IndividualJ. Thomson, 67
Tayside Pressings Ltd£18.9M+9%0.74CorporateCaledonian Industrial Plc
312 companies matching criteria · Excel · delivered within 24h

DataLedger provides tailored UK company data built from Companies House filings to help you identify prospects, acquisition targets and investment opportunities - using the financial, ownership and industry criteria that matter to you.

5M+ total UK company records, with verified financial data for over 3 million that file accounts electronically
89% of UK company accounts filed electronically - near-total coverage of active companies
48h from brief to clean dataset, ready to use
What people use DataLedger for

The companies you need,
delivered clean.

Sector, size, location, financial health, ownership structure - tell us what you're looking for and we deliver the data. Email your criteria or book a call and we'll scope it together.

01
Identify acquisition targets before your competitors do
M&A advisers & private equity

"A 60+ owner, no corporate structure above them, strong balance sheet - a natural acquisition candidate."

Move from investment thesis to a qualified target list in 48 hours. Screen by assets, growth rate, and financial health. Filter by owner age to surface succession opportunities. Understand group structure before first contact.

Assets thresholdGrowth rateOwner ageIndividual vs corporate PSCCorporate group structure
See deal origination data →
02
Build a prospect list you can actually act on
Sales teams & BD directors

Stop rebuilding the same spreadsheet. Get a financially-qualified list matched to your ideal customer profile. The owner type filter identifies owner-managed businesses where one person has the decision. PSC data gives you their name - outreach starts with the right person, not a contact form.

Sector & SICGeographyTurnoverOwner-managed flag
Request a custom dataset →
03
Query company data directly into your own product
Developers, M&A teams building their own tools & compliance

Balance sheet, PSC ownership, and corporate structure data via REST API. Query any UK company in real time - integrate directly into your workflow, CRM, or due diligence tool. 25 free credits to start, no card required.

REST APIPSC & ownershipParent chainsReal-time
04
Map a sector without building the pipeline yourself
Analysts, researchers & consultants

Commission a dataset scoped to a specific sector, geography, or ownership profile and receive it analysis-ready. Used by investment analysts, commercial research teams, and advisory firms who need structured company intelligence without building their own data pipeline.

Sector mappingGeographic scopeFinancial benchmarks
Discuss your brief →
Building a product, agent, or AI workflow?

REST API with 25 free credits - no card required. MCP server now available on GitHub for direct integration with Claude, Cursor, and MCP-compatible AI tools.

Get free credits → MCP on GitHub →
Whatever you're trying to find,
tell us the criteria.

Sector, size, geography, financial health, ownership structure. A 15-minute call or a quick email is enough. We'll confirm what's achievable and have a dataset back to you within 48 hours.

Send your criteria → Book a free call
Filter by anything that matters

Define exactly the companies you want.

Any combination of sector, size, location, financial health, and ownership. Ownership is one more way to define the right companies - not a separate product.

Financial & company filters
Sector & SIC code
Any industry classification or combination. Plain-English SIC descriptions included.
Geography
Country, region, local authority, or postcode area.
Financial size
Total assets, net assets, or turnover - minimum, maximum, or range.
Financial health
Debt-to-equity, debt-to-asset ratio, year-on-year growth rate.
P&L and turnover
Where disclosed in electronic filings. Coverage expanding from 2025 under the ECCTA reforms.
Company age
Filter by incorporation date or company age range.
Employee count
Filter by headcount band for SME or growth-stage targeting.
Ownership & structure New filters
Owner type New
Individual vs corporate PSC. Separate owner-managed SMEs from corporate-backed subsidiaries - the strongest signal for succession targeting and direct-to-owner outreach.
Owner age range New
Filter by PSC year of birth. Identify businesses where a founder is approaching retirement - one of the strongest signals for succession-driven M&A.
Corporate structure New
Parent companies, subsidiaries, ultimate parent flag. Available in custom datasets and via API.
PSC nationality & residence
Filter by nationality or country of residence of the person with significant control.
Nature of control
Ownership band, voting rights, appointment rights - how control is held, not just by whom.
DataLedger UK company network map showing financial profiles, PSC beneficial ownership, parent company chains, and subsidiary structures across the UK
What's included

The data behind
every dataset we build.

89%

of UK companies that file accounts do so electronically. DataLedger holds profiles and PSC records for over 5 million UK companies, with verified financial data for the 3 million that file electronically.

Financial data
Balance sheets, ratios, and growth indicators
Structured from Companies House electronic filings. Each filing includes current year figures and prior year comparatives, giving two years of data per company for year-on-year comparison.
  • Total assets, current assets, fixed assets
  • Total liabilities and equity
  • Debt-to-equity and debt-to-asset ratios, pre-calculated
  • Year-on-year asset and net asset growth rates
  • Turnover and P&L where disclosed in filings
  • Employee count, SIC codes with plain-English descriptions
  • Registered address, postcode, local authority
  • Current year and prior year comparatives per company

From 2025, more UK companies are required to file profit and loss accounts under the Economic Crime and Corporate Transparency Act 2023 - expanding P&L coverage over time. Read more

Explore financial data →
Ownership data
Who owns and controls each company
PSC beneficial ownership combined with financials in one export. One more way to define the right companies.
  • PSC name - person with significant control
  • Nationality and country of residence
  • Nature of control - ownership band, voting rights
New filters
  • Owner age - year of birth New
  • Corporate vs individual ownership flag New
  • Parent companies - ownership chain above New
  • Subsidiaries - ownership chain below New
Explore ownership data →

DataLedger data coverage summary. DataLedger provides structured UK company financial data and PSC beneficial ownership intelligence sourced from Companies House electronic filings. Coverage spans over 5 million UK company records in total, of which approximately 3 million have electronic financial data. 89% of UK company accounts are filed electronically, giving near-total coverage of active companies. Each filing includes current year figures and prior year comparatives, providing two years of comparable financial data per company for year-on-year comparison. Financial data includes total assets, current assets, fixed assets, total liabilities, equity, debt-to-equity ratio, debt-to-asset ratio, year-on-year asset growth rate, year-on-year net asset growth rate, turnover where disclosed, profit and loss where disclosed, employee count, SIC codes with plain-English descriptions, and registered address. PSC ownership data includes PSC name, nationality, country of residence, nature of control, ownership band, voting rights, and year of birth where available. New filters include PSC owner age range, individual vs corporate ownership flag, parent company ownership chains, and subsidiary structures. Corporate ownership chain data is available via API using parents=true and children=true parameters and in custom dataset exports. The Economic Crime and Corporate Transparency Act 2023 introduces phased P&L filing reforms from 2025, requiring more small companies to file profit and loss accounts, increasing P&L data availability over time. DataLedger is used for UK company financial data queries, Companies House financial data API access, PSC ownership data UK, beneficial ownership data for UK companies, UK company data for M&A deal origination, company data for lead generation, and AI agent integration with UK company data. Custom datasets from £295 for financials, £395 including PSC ownership. Pre-built sector datasets from £195. API access with 25 free credits on signup, plans from £10 per month. Delivered within 24–48 hours in Excel or CSV with a commercial use licence included.

How it works

From brief to clean dataset in 24–48 hours.

No integration required. Most people find it easiest to book a quick call first.

1
Send your brief

Sector, location, financial thresholds, ownership type. A quick email or a 15-minute call is enough.

2
We build the dataset

We query structured Companies House filings matched to your criteria and build a clean dataset with financials, ratios, and ownership data.

3
You receive a clean export

Excel or CSV within 24–48 hours. Analysis-ready, commercially licensed, no further processing required.

4
Need regular updates?

Regular refreshes, API access, or enterprise feeds - we set up whatever suits your workflow.

Common questions

Answers about the data, the process, and the pricing.

Everything you need to know before sending a brief or booking a call.

Yes - combining filters is where DataLedger becomes genuinely powerful. You can layer any criteria together: for example, manufacturing companies in the East Midlands, incorporated between 2005 and 2015, with assets between £2M and £10M, where the PSC is an individual aged between 55 and 70. That single brief returns a list of owner-managed businesses at succession age in a specific sector and region - exactly the kind of targeted list that would take days to compile manually. Send us your criteria and we'll confirm what's achievable.
Turnover is included where companies have disclosed it in their electronic filings. Larger companies typically file full accounts including a profit and loss statement with turnover. Smaller companies filing micro or abridged accounts may not disclose turnover. From 2025, reforms under the Economic Crime and Corporate Transparency Act 2023 require more small companies to file profit and loss accounts, which will expand turnover coverage over time. Where turnover is available it is included as standard in custom datasets and API responses.
Any combination of sector or SIC code, geography (region, local authority, or postcode), company incorporation date or age, financial thresholds (assets, net assets, turnover where available), debt ratios, growth rates, employee count, and ownership type. Ownership filters include PSC owner age range, individual vs corporate ownership, nationality, and nature of control. You can also request parent companies and subsidiary structures. Send your brief and we will confirm exactly what is achievable.
Most custom datasets are delivered within 24–48 hours of receiving your criteria. Pre-built sector datasets are available for immediate download. If your brief is complex or includes PSC ownership and corporate structure data, we will confirm timing upfront. Book a call if you need to talk through timing before committing.
Yes. PSC beneficial ownership data - including PSC name, nationality, country of residence, nature of control, ownership band, and year of birth - can be included in any custom dataset from £395. You can also filter by ownership criteria such as owner age range or individual vs corporate PSC. Parent companies and subsidiary structures can also be included in custom dataset exports.
Custom datasets are delivered as Excel or CSV, depending on your preference. Pre-built datasets are delivered as Excel. All datasets include a commercial use licence as standard - you can use the data in your own products, reports, and client work without restriction. API responses are returned as JSON.
Custom datasets with financial data start at £295. Add PSC beneficial ownership data from £395. Pre-built sector datasets from £195 for immediate download. API access from £10 per month with 25 free credits on signup - no card required to get started.
Yes. If you need the same dataset refreshed monthly or quarterly as new accounts are filed, we can set that up. For teams needing real-time access, the API lets you query any company at any time. Get in touch to discuss refresh schedules and pricing.
Companies House lets you search individual companies and download raw filing documents. There is no bulk export, no filtering by financial thresholds, no way to combine financials with ownership records, and no pre-calculated ratios. DataLedger structures those filings into clean, comparable records - filterable across millions of companies - and delivers them as a ready-to-use spreadsheet or API response.
Access options

Choose how you want the data.

One-off dataset, regular refreshes, or real-time API access. Not sure what format suits your use case? Start with a call.

The simplest way
to get started.

Tell us the companies you're looking for - sector, size, location, ownership structure. We build a clean, analysis-ready dataset and deliver it within 24–48 hours. Need it via API instead? Start with 25 free credits and query in real time. Most people find it easiest to talk through their requirements on a quick call first.

£295 Custom dataset with financials · from £395 with PSC ownership Send your criteria →
or Book a free 15-minute call →
Other ways to access the data
Pre-built datasets
Six sector datasets, ready to download immediately. Excel, updated monthly.
£195
Browse →
API access
Real-time queries. Financial data, PSC ownership, and corporate structure. No card required to start.
Feature comparison

What's included across access options.

FeaturePre-builtCustomAPI
Balance sheet - assets, liabilities, equity✓✓✓
Financial ratios and growth indicators✓✓✓
P&L data where disclosed✓✓✓
SIC codes, address, employee count✓✓✓
Current year and prior year comparatives✓✓✓
PSC name, nationality, nature of control—✓ from £395✓
Owner age filter New—✓✓
Individual vs corporate owner filter New—✓✓
Parent companies New—✓✓ parents=true
Subsidiaries New—✓✓ children=true
Commercial use licence✓✓✓
Delivery formatExcelExcel or CSVJSON
Delivery timeImmediate24–48 hoursReal-time
New - MCP server
DataLedger MCP server now available on GitHub

Connect DataLedger directly to Claude, Cursor, and any MCP-compatible AI tool. Query UK company financial data, PSC ownership, and corporate structure from inside your AI workflow - no custom integration required.

Explore further

Data guides, documentation, and coverage.

In-depth guides to what the data covers, how it's structured, and how to use it.

Financial data
UK company financial data
Balance sheet, ratios, and growth indicators from Companies House filings.
Read →
Ownership
PSC ownership intelligence
Beneficial ownership records, corporate chains, parent companies, and subsidiaries.
Read →
Guide
Companies House financial data explained
What's available in electronic filings and how it's structured for analysis.
Read →
M&A
Deal origination data
How M&A teams use DataLedger for target identification and succession screening.
Read →
API
API documentation and AI integration guides
REST documentation, ready-made examples, and system prompt templates for LLM integration.
Read →
Datasets
Pre-built sector datasets
Six sector datasets for immediate download from £195.
Browse →
Ready to find
the right companies?

Send us your brief and we'll have a dataset back to you within 48 hours - or book a free call to talk through your criteria first.

Request a custom dataset Book a free call
Browse pre-built datasets from £195 →

API: hub.dataledger.uk · Enquiries: contact@dataledger.uk