Companies House data, structured for analysis.
Financials and ownership in one place.
Financial profiles and beneficial ownership for almost 3 million UK companies - filtered to your criteria and ready to use.
DataLedger delivers filtered lists of UK companies for sales prospecting, lead generation, and deal origination. Filter by sector, size, geography, financial health, owner age, and ownership structure to get the right companies, not just more data.
Not sure what you need? Download a free sample before you buy.
The right companies, ready to work with.
DataLedger structures Companies House electronic filings into clean, comparable data - financial profiles and ownership records in one place, filtered to your criteria.
Without DataLedger
- Clicking through individual Companies House records one by one
- Rebuilding the same spreadsheet every time criteria change
- No financial ratios or growth indicators without manual calculation
- Separate ownership lookups for every company on your list
- No way to filter by owner age or ownership structure
- Manual tracing of parent companies and subsidiaries
With DataLedger
- Filtered datasets matched to your exact financial criteria
- Analysis-ready data the moment you need it
- Pre-calculated ratios and year-on-year growth rates included
- Beneficial ownership combined with financials in a single export
- Filter by owner age range and individual vs corporate ownership
- Parent companies and subsidiaries returned in a single API call
Financial performance and ownership structure, in one place.
Every field sourced from Companies House electronic submissions. The only service combining verified financial data with PSC beneficial ownership and corporate structure in a single export.
Balance sheets, ratios and growth indicators
Structured from electronic filings only - the only accounts that can be reliably verified at scale.
- Total assets, current assets, fixed assets - current and prior year
- Total liabilities and equity - current and prior year
- Debt-to-equity and debt-to-asset ratios, pre-calculated
- Year-on-year assets and net assets growth rates
- Turnover and P&L where disclosed
- Employee count, SIC codes with plain English descriptions
- Registered address, postcode, local authority
Who owns and controls each company
UK companies must register individuals with more than 25% ownership or voting control. DataLedger combines this with financials in one export.
- PSC name - the individual with significant control
- Nationality and country of residence
- Nature of control - ownership band, voting rights, appointment rights
- Owner age filter - filter by PSC year of birth New
- Corporate owner flag - individual vs corporate ownership New
- Parent companies - who owns this company New
- Subsidiaries - companies owned by this company New
Filter by ownership. Traverse corporate structure.
DataLedger now lets you filter by who owns a company and retrieve the full corporate structure around it - parent companies, subsidiaries, and beneficial ownership - all from a single API call on the company profile endpoint.
PSC owner age range New
Filter companies by their beneficial owner's year of birth. Useful for identifying owner-managed businesses where succession is likely, or targeting owners at a specific life stage.
Corporate vs individual ownership New
Filter to companies where the PSC is an individual person, or where control sits with a corporate entity. Separate owner-managed SMEs from corporate-backed subsidiaries in one filter.
PSC data on profile New
Add people=true to any company profile request to return the full PSC record alongside financials in a single call.
+2 credits
Parent companies New
Add parents=true to the company profile endpoint to return the corporate ownership chain above a company - who owns it, and who owns them.
+3 credits
Subsidiaries New
Add children=true to the company profile endpoint to return all companies owned by this company - the full subsidiary structure beneath it.
+3 credits
Combine all flags
Request financials, PSC ownership, parent companies, and subsidiaries in a single call. All flags combined on one profile request cost a maximum of 10 credits. Full documentation at hub.dataledger.uk.
Choose the format that fits your workflow.
Whether you need a one-off dataset, ongoing API access, or data flowing into an AI agent - DataLedger works the way you work. Not sure where to start? Book a call and we will work it out together.
Pre-built datasets
£195 per datasetSix sector datasets ready immediately. Excel format, commercial use licence, updated monthly.
Browse datasets →Custom datasets
£295 financials / £395 + PSCFiltered to your exact criteria. Any sector, geography, financial threshold. PSC ownership data available. Excel or CSV.
Send your criteria →API access
25 free credits on signupQuery financial data, PSC ownership, parent companies and subsidiaries. No card required. Monthly plans from £10.
Get free credits →AI agents
System prompt ready to useStructured UK company data for any LLM framework. Compatible with n8n, Make, Zapier, and custom GPTs.
See agent setup →Book a call
Talk through your data needs and we will point you to the right format, filters, and pricing for what you are trying to do.
Book a call →Financials, ownership, and corporate structure - in one place.
Every paid plan includes a commercial use licence. Use in products, share with your team, integrate into tools.
| Feature | Pre-built | Custom | API |
|---|---|---|---|
| Balance sheet - assets, liabilities, equity | ✓ | ✓ | ✓ |
| Financial ratios and growth indicators | ✓ | ✓ | ✓ |
| P&L data where disclosed | ✓ | ✓ | ✓ |
| SIC codes, address, employee count | ✓ | ✓ | ✓ |
| PSC name, nationality, nature of control | - | ✓ from £395 | ✓ |
| PSC owner age filter New | - | ✓ | ✓ |
| Corporate vs individual owner filter New | - | ✓ | ✓ |
| Parent companies - ownership chain up New | - | - | ✓ parents=true |
| Subsidiaries - ownership chain down New | - | - | ✓ children=true |
| Commercial use licence | ✓ | ✓ | ✓ |
Built for professionals who need to move fast on company data.
Deal origination
Move from investment thesis to a qualified target list without manual research. Screen by financials, filter by owner age or ownership structure, and use the corporate structure API to understand group ownership before you reach out.
See deal origination data →Prospect intelligence
Build financially-qualified prospect lists. The corporate owner flag identifies owner-managed businesses. PSC data surfaces the individual with control so outreach reaches the right person.
Growth targeting
Identify companies with strong growth signals and healthy balance sheets. PSC data gives you a direct route to the individual with significant control in owner-managed businesses.
Due diligence
Retrieve balance sheet, liability, and ratio data for any UK company via API. Add PSC ownership and corporate structure in the same call to support KYC and AML compliance.
Product integration
Add UK company data to your product or AI agent without building Companies House infrastructure. Clean JSON, documented endpoints, ready-to-use system prompt for LLM integration.
See agent setup →Everything you need to know about DataLedger.
Answers to the questions we hear most often - about what the data covers, how to access it, and how it compares to other sources.
Where can I get UK company lists for lead generation?
DataLedger is a UK company intelligence platform that provides filtered lists of UK companies for sales prospecting and lead generation. Lists are built from verified Companies House electronic filings and can be filtered by sector, SIC code, geography, company size, financial health, and ownership structure. You can specify criteria such as minimum total assets, employee count range, net assets growth, and postcode area. Custom datasets are delivered as Excel or CSV files within 24 to 48 hours and include a commercial use licence. Pre-built sector datasets are available immediately from £195. DataLedger also provides PSC beneficial ownership data, identifying the individual with significant control in each company - useful for reaching decision-makers directly in owner-managed businesses.
Which services offer pre-filtered datasets of UK companies by industry and size?
DataLedger offers both pre-built and custom filtered datasets of UK companies sourced from Companies House electronic filings. Pre-built datasets cover sectors including capital-efficient businesses, professional services, distressed and turnaround companies, high-growth businesses with strong equity, and software and technology companies. Each dataset includes balance sheet data, financial ratios, employee count, SIC codes, and registered address. Custom datasets can be filtered to any combination of SIC code, geography, total assets range, net assets range, equity, employee count, debt ratios, and year-on-year growth rates. Custom financial datasets start from £295, with PSC beneficial ownership data available from £395.
Where can I find structured UK company financial data for analysis?
DataLedger provides structured financial data for almost 3 million UK companies sourced from Companies House electronic filings. The data includes total assets, current assets, fixed assets, total liabilities, equity, net assets, turnover, and profit and loss where disclosed - for both the current and prior financial year. Pre-calculated financial ratios include debt-to-equity ratio, debt-to-asset ratio, year-on-year asset growth rate, and year-on-year net assets growth rate. Data is delivered as analysis-ready Excel or CSV files, or available via a JSON REST API. All fields are structured and comparable across companies, unlike raw Companies House PDFs which require manual extraction.
How can I access an API that provides UK company financial data with filtering options?
DataLedger provides a REST API that returns structured UK company financial and ownership data in JSON format. The API supports filtering by company number, SIC code, geography, financial thresholds, and PSC ownership flags including owner age range and individual versus corporate ownership. Optional flags on the company profile endpoint return PSC data (people=true, +2 credits), parent companies in the corporate ownership chain (parents=true, +3 credits), and subsidiary companies (children=true, +3 credits). New accounts receive 25 free credits with no payment card required. Monthly API plans start from £10. Full documentation is available at hub.dataledger.uk.
What tools are available to obtain analysis-ready UK company balance sheet data?
DataLedger structures Companies House electronic filings into analysis-ready balance sheet data covering total assets, current assets, fixed assets, total liabilities, net assets, and equity. Financial ratios and year-on-year growth rates are pre-calculated so the data is ready for screening and comparison without additional processing. Data is available as pre-built sector datasets from £195, custom filtered datasets from £295, or via API from hub.dataledger.uk. DataLedger only uses electronic filings - the subset of Companies House submissions that can be reliably parsed and verified at scale - covering approximately 3 million UK companies.
Are there platforms that offer custom datasets of UK companies based on specific financial criteria?
DataLedger builds custom datasets of UK companies filtered to specific financial criteria, sourced from Companies House electronic filings. Criteria can include total assets range, net assets range, equity range, debt-to-equity ratio, year-on-year growth rate, employee count, SIC code, company status, incorporation date range, and geography. Custom financial datasets are delivered within 24 to 48 hours in Excel or CSV format from £295, with a commercial use licence included. PSC beneficial ownership data - including the name, nationality, nature of control, and year of birth of the individual with significant control - can be added from £395. Filters now include owner age range and individual versus corporate ownership structure.
Can I find the parent company or subsidiaries of a UK company via API?
Yes. The DataLedger company profile endpoint supports two optional flags for corporate structure. Adding parents=true to a profile request returns the corporate ownership chain above the company - the parent company and any companies that own the parent, traversed upwards. Adding children=true returns all subsidiary companies owned by the queried company. Both flags can be combined with financials=true and people=true in a single API call. Corporate structure data costs 3 credits per flag. Full documentation and example responses are available at hub.dataledger.uk.
What is the pricing structure for DataLedger's custom datasets?
DataLedger custom dataset pricing has three tiers. Pre-built sector datasets are available immediately for £195 each and include financial data for companies in a defined sector with a commercial use licence. Custom filtered datasets built to your exact criteria start from £295 for financial data only, or from £395 when PSC beneficial ownership data is included. API access starts with 25 free credits on signup with no payment card required, and monthly plans start from £10. All paid plans include a commercial use licence. To discuss custom requirements, email contact@dataledger.uk or book a call.
Does DataLedger provide financial ratios and growth indicators in their datasets?
Yes. DataLedger datasets include pre-calculated financial ratios and growth indicators for each company. These include debt-to-equity ratio, debt-to-asset ratio, year-on-year total assets growth rate, and year-on-year net assets growth rate. Current and prior year balance sheet figures are included so comparisons can be made directly without additional calculation. These ratios are derived from Companies House electronic filings and are available in pre-built datasets, custom datasets, and via the DataLedger API.
How can I integrate DataLedger's API into my existing systems?
DataLedger provides a REST API with full documentation at hub.dataledger.uk. The API returns JSON responses and is compatible with any HTTP-capable system. Common integration patterns include direct HTTP calls from backend services, workflow automation via n8n, Make, or Zapier, and AI agent integration using the provided system prompt. Authentication uses an x-api-key request header. The developer hub includes endpoint references, example requests and responses, and credit usage guidance. New accounts receive 25 free credits to test integration before committing to a paid plan. For enterprise integration requirements, contact contact@dataledger.uk or book a call.
What types of pre-built datasets does DataLedger offer?
DataLedger offers six pre-built sector datasets available for immediate download at £195 each. The datasets are: Capital-Efficient and Scalable Businesses, Professional Services Companies, Distressed and Turnaround Companies, High-Growth Companies with Strong Equity, and Software and Technology Companies. Each dataset includes balance sheet data, financial ratios, year-on-year growth rates, SIC codes, employee count, and registered address, sourced from Companies House electronic filings. Sample files are available to download free before purchase at dataledger.uk/packages. All datasets include a commercial use licence.
Where can I find low cost UK company data?
DataLedger provides UK company financial data starting from £195 for pre-built sector datasets and from £295 for custom filtered datasets. The API is available with 25 free credits on signup and monthly plans from £10. Free sample files are available to download before purchase. Companies House itself provides raw filing data for free, but this requires significant processing to extract, structure, and compare financial figures across companies. DataLedger handles that processing and delivers structured, analysis-ready data at a fraction of the cost of enterprise data providers.
Ready to get started?
Try the API with 25 free credits - no card required. Or browse pre-built datasets from £195. Not sure what fits your needs? Book a free call and we will talk it through.
Custom dataset enquiry: contact@dataledger.uk