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Corporate Registries

corporate-recordsosintregistryopencorporatesfilings

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Full lesson · 8 learning steps Open any exercise for focused practice

Step 1 of 8 · intro card

Learn Corporate Registries

Business & Financial

Business OSINT starts with public company registries. OpenCorporates aggregates many jurisdictions, while national registries like Companies House publish directors, registered addresses, and filings — letting investigators map corporate structure and ownership for lawful due diligence.

Business intelligence begins with the official record. Every incorporated company is registered with a government authority, and most jurisdictions publish that data — names, directors, registered addresses, and statutory filings — as public records.

OpenCorporates aggregates these registries into a single open dataset, so you can search across borders. National registries such as the UK's Companies House remain the authoritative source for a given jurisdiction and often hold richer filing history.

By correlating directors, addresses, and filings across registries, an analyst maps a company's structure and ownership — the standard, lawful first step in due diligence, KYC onboarding, and fraud investigation.

OpenCorporates aggregates registries across jurisdictions.

Companies House is an authoritative national registry.

Directors, addresses, and filings map structure.

# OpenCorporates: aggregated company data
# national registries (Companies House)
# directors, addresses, filings
# map corporate structure + ownership

Read the implementation

Connect each part of the code to the concept before you type.

1. Aggregator

OpenCorporates aggregates company records from many jurisdictions into one searchable public dataset.

# OpenCorporates: aggregated company data

2. National registry

National registries such as the UK's Companies House are the authoritative public source for incorporated companies.

# national registries (Companies House)

3. Filed data

Registries publish directors, registered addresses, and statutory filings — the raw material of company research.

# directors, addresses, filings

4. Structure mapping

Linking filings across registries reconstructs corporate structure and ownership for due diligence.

# map corporate structure + ownership

A complete learning loop

Understand

Read the concept map and follow the code breakdown.

Reconstruct

Type the implementation, repair mistakes and work through every recall exercise.

Verify

Use the final check without hints; revisit weak concepts in short practice sessions.