DataLedger FAQs

DataLedger is a UK company data platform that structures Companies House electronic filings and PSC records into three categories of analysis-ready data: financial data, beneficial ownership intelligence, and corporate group structure.

It is used for financial screening, ownership research, M&A deal sourcing, lead generation, due diligence, KYC workflows, CRM enrichment, AI workflows and product integrations.

Structured Companies House data is raw filing information converted into clean, searchable and comparable fields. Companies House holds financial filings, PSC beneficial ownership records, and corporate information separately. DataLedger structures all three into consistent, queryable records that can be used immediately in spreadsheets, APIs and internal systems.

Companies House is the authoritative source. DataLedger builds on it in three ways.

• Financial data: electronic filings parsed into structured balance sheets, pre-calculated ratios, growth indicators and verification flags.
• Ownership data: PSC beneficial ownership records combined with financials in a single record, with filters for owner age, owner type and nature of control.
• Corporate structure: parent company chains and subsidiary structures built from PSC records, retrievable in a single API call rather than requiring manual traversal.

No. DataLedger is an independent UK data provider. It uses open Companies House financial filings, Companies House PSC beneficial ownership records and ONS reference data to provide structured financial, ownership and corporate structure datasets. It is not affiliated with or endorsed by Companies House or any UK government body.

DataLedger is used by analysts, investors, private equity teams, M&A advisers, sales teams, recruiters, compliance and KYC teams, developers, AI product builders, CRM teams and researchers who need structured UK company financial data, PSC ownership records, or corporate group structure data.

DataLedger processes electronically filed accounts from Companies House. Almost 3 million companies have structured financial data available, with around 2.8 million records carrying DataLedger's verification flag.

PSC beneficial ownership records are available across the full register of active UK companies that have filed PSC data. Paper-filed accounts are not included in the structured financial dataset because they cannot be reliably parsed and validated at scale.

DataLedger provides three categories of structured UK company data.

• Financial data: balance sheets, ratios, growth indicators, P&L where disclosed, employee counts, SIC codes, registered address, company status and incorporation date.
• Ownership data: PSC beneficial ownership records including owner name, nationality, country of residence, year of birth, ownership band, nature of control, and individual versus corporate owner flag.
• Corporate structure: parent company chains and subsidiary structures, retrievable via API alongside financials and ownership data in a single request.

DataLedger provides structured balance sheet data including total assets, current assets, fixed assets, liabilities, equity, employee count where disclosed, SIC codes, registered address, company status and incorporation dates.

Where disclosed, DataLedger also includes turnover and profit and loss figures.

DataLedger provides PSC beneficial ownership records sourced from Companies House. Each record includes the owner's name, nationality, country of residence, year of birth, ownership band, voting rights, appointment rights, nature of control, and a flag indicating whether the owner is an individual or a corporate entity.

Ownership records can be returned alongside financial data in the same API response or dataset export, removing the need to join separate datasets.

No. Most UK SMEs do not publish turnover or profit figures because micro-entities and small companies can file accounts without a full income statement.

Where P&L data is disclosed, DataLedger includes it. API users can use hasPLFigures=true to filter for companies with P&L figures available.

Balance sheet data is available for far more UK companies than turnover or EBITDA. It can still show scale, liabilities, equity, financial resilience, growth and debt levels.

This makes balance sheet-led screening useful for UK SME analysis, lead generation, acquisition research, credit checks and financial benchmarking.

Yes. DataLedger includes pre-calculated ratios and growth indicators such as debt-to-equity ratio, debt-to-asset ratio, year-on-year asset growth and year-on-year net assets growth.

The verification flag confirms that balance sheet figures are internally consistent using the accounting relationship between assets, liabilities and equity.

In the API this appears as cVerified for the current year and pVerified for the previous year.

DataLedger processes new accounts filings and PSC records as they become available. Pre-built datasets are refreshed monthly. Custom datasets are built using the latest processed data available at the time of request.

PSC stands for Person with Significant Control. It identifies individuals or relevant legal entities that own or control more than 25% of a UK company's shares or voting rights, or otherwise exercise significant influence or control.

PSC records have been publicly filed at Companies House since 2016 and form the UK's beneficial ownership register.

DataLedger includes PSC name, nationality, country of residence, year of birth, ownership band, voting rights, appointment rights, nature of control and whether the owner is an individual or corporate entity.

Yes. DataLedger combines PSC beneficial ownership records with structured financial data in a single API response or dataset export. This means you can screen by financial criteria - assets, ratios, growth, sector - and ownership criteria - owner age, individual versus corporate, nationality - at the same time without joining separate sources.

Yes. DataLedger can filter companies by individual ownership, corporate ownership, PSC ownership bands and owner age. This can help identify founder-owned, owner-managed or corporate-backed businesses, and can be combined with financial filters to narrow results by sector, geography or financial size.

Yes. DataLedger supports PSC age filtering using owner year of birth where available. This is useful for succession-led research, acquisition targeting and identifying established owner-managed businesses.

Yes. The DataLedger API supports corporate ownership chain retrieval. Adding parents=true to a company profile request returns the ownership chain above a company, traversed to the ultimate parent. Adding children=true returns all subsidiary companies beneath it.

Both flags can be combined with financials and PSC records in a single company profile request.

Corporate ownership chains are built by traversing PSC records. Where a company has a corporate PSC, that entity is the immediate parent. DataLedger follows these relationships recursively - upward to the ultimate parent, or downward through all subsidiaries - and returns the full chain in a single response.

Companies House does not provide this natively. Without a structured provider, tracing a corporate group requires manual lookups across each company in the chain.

Yes. PSC chain traversal relies on each company in the group having filed its corporate PSC records correctly. Where companies use offshore holding structures, nominee arrangements, or have incomplete PSC filings, the chain may break. This is a limitation of the underlying public data rather than the traversal method.

Yes. A single DataLedger API call can return financial data, PSC beneficial ownership records, parent companies and subsidiaries together. All flags combined on one profile request cost a maximum of 10 credits. Full documentation is at hub.dataledger.uk.

Yes. DataLedger provides a REST API that returns structured UK company financial data, PSC beneficial ownership records, parent company chains and subsidiary structures in JSON format. New accounts receive 25 free credits with no payment card required. Monthly plans start from £10.

The main API endpoints are company autocomplete, company search and company profile. The search endpoint supports filtering by sector, SIC code, geography, financial thresholds, and PSC ownership flags including owner age range, individual versus corporate owner, and nature of control. The company profile endpoint supports optional flags for financials, PSC records, parent companies and subsidiaries.

Credits are consumed per request. A search costs 1 credit. A company profile starts at 1 credit as a base, with optional flags adding credits: financials +1, PSC ownership records +2, parent companies +3, subsidiaries +3. All flags combined cost a maximum of 10 credits per profile request.

Yes. DataLedger returns structured JSON responses designed for AI-ready workflows. The API can be integrated with ChatGPT, Claude, custom GPTs, n8n, Make, Zapier and internal LLM tools. DataLedger also provides an MCP server for direct integration with AI agent frameworks, allowing agents to retrieve live UK company financial, ownership and corporate structure data during a conversation.

Yes. DataLedger can be integrated into CRMs, internal tools, lead generation platforms, due diligence workflows, dashboards and commercial software products, subject to the relevant commercial use terms.

Pre-built datasets are ready-made sector-based files covering financial data, available for instant download. Custom datasets are built to your exact criteria and can combine financial data, PSC beneficial ownership records, and corporate structure filters in a single export.

Custom datasets can be filtered by SIC code, sector, geography, postcode, local authority, company age, employee count, assets, liabilities, equity, turnover where disclosed, ratios, growth indicators, PSC owner age range, individual versus corporate ownership, PSC nationality and nature of control.

Datasets are delivered in Excel or CSV format depending on the order type and your preference.

Yes. Paid DataLedger products include commercial use rights, subject to the Terms of Service. If you need redistribution, resale or embedded product use, contact DataLedger to confirm the right licence route.

Pre-built datasets start from £195. Custom financial datasets start from £295. Custom datasets with PSC ownership data start from £395. API access includes 25 free credits on signup, with monthly plans from £10 and one-off credit packs from £5.

Yes. Sample files are available for pre-built datasets. For custom dataset requests, DataLedger can usually provide sample records that match your requested criteria.

You can sign up at hub.dataledger.uk for 25 free API credits, browse pre-built datasets at dataledger.uk/packages, or email contact@dataledger.uk with your custom dataset criteria.

Yes. If you are unsure which filters to use, DataLedger can help shape the brief before you buy. This is useful for financial screening, ownership research, corporate structure mapping, M&A deal sourcing, lead generation, recruitment prospecting and CRM enrichment.