The Global Legal Entity Identifier system provides standardized public reference data for legal entities that have an LEI, including legal name, registered or headquarters addresses, jurisdiction, registry information, status, and update fields. It is especially relevant to organizations participating in financial transactions, but it is not a universal directory of every local business and does not replace public contact research.

VISUAL LESSON

What you will learn

  1. 01Understand what Level 1 LEI reference data can establish.
  2. 02Map LEI, legal entity, brand, headquarters, and branch separately.
  3. 03Classify active, inactive, lapsed, missing, and ambiguous evidence responsibly.
Legal entity identifier records connect official name, registry, address, status, brand, and branch evidence into a reviewed company map
An LEI identifies a legal entity in its intended system; it does not automatically identify the campaign’s best location, brand, or public contact.

ILLUSTRATIVE WORKED EXAMPLE

Resolve an illustrative 40-record entity sample

Candidate companiesResearch sample
40
LEI candidates foundNot universal
26
Exact entity matchesComposite evidence
20
Campaign locations mappedSeparate branch work
15
Illustrative example—not a benchmark. Replace every sample value with your own campaign, market, and measurement data.

PRACTICAL INTERFACE MAP

Move from LEI search to campaign entity map

Candidate01Start with public business evidence

Record name, jurisdiction, address, domain, location, registry identifiers, brand, source, and date before searching the Global LEI Index.

LEI record02Inspect Level 1 reference data

Capture LEI, legal name, other names, registry authority and ID when present, jurisdiction, legal and headquarters addresses, entity and registration status, validation source, and update dates.

Map03Decide the relationship

Classify exact legal entity, parent, subsidiary, fund, branch, brand, former entity, ambiguous, or no supported match; keep the campaign contact and location separate.

Conceptual walkthrough. Labels, controls, and availability can vary by account, region, plan, and interface version; verify the current screen before acting.

STEP-BY-STEP LESSON

Business evidence → LEI reference data → relationship classification → campaign record

SearchName and jurisdiction
ValidateStatus and reference fields
RelateEntity versus brand or branch

THE LEAD ATLAS METHOD

Lead Atlas Data can build a campaign-specific contact list for selected business categories, locations, and markets, using identifiers such as an LEI only where they genuinely clarify the researched entity.See how custom list research works ↗
01

Know what an LEI can prove

An LEI is a 20-character identifier connected to standardized legal-entity reference data. GLEIF describes Level 1 information as answering who is who, with fields such as legal name, registry reference where applicable, legal form, jurisdiction, legal and headquarters addresses, creation date, entity status, and record dates.

An LEI does not prove the organization is the right sales prospect, owns a particular website, operates every advertised location, or has current public contact details. Many ordinary small businesses may not have an LEI at all.

02

Prepare the candidate record

Before searching, collect the exact public business name, alternate and trade names, country and jurisdiction, registered or operating address, website, phone, registry identifier where published, parent clues, branch clues, source URL, and access date. Normalize only in helper fields.

Do not search from a generic brand alone when several legal entities use it. Add jurisdiction and address evidence, and keep the campaign’s target location separate from the place of legal formation.

03

Inspect the full reference record

Capture the LEI, primary legal name, other names, registration authority and entity ID when present, legal form, jurisdiction, legal address, headquarters address, entity status, registration status, validation source, last update, next renewal, and expiration or successor evidence where applicable.

A lapsed registration state and an inactive legal-entity state are not the same idea. Preserve the exact coded states and dates from the source instead of compressing them into a single valid or invalid flag.

04

Classify the relationship

Compare names, registry identifiers, addresses, jurisdiction, domain, ownership, and corporate events. Label the result exact legal entity, parent, subsidiary, international branch, fund or special structure, trade name, former entity, ambiguous candidate, or no supported match.

Keep a brand or branch record when that is the campaign buyer, and link it to the legal entity rather than replacing its operating identity. Do not copy headquarters contacts onto a local branch without public evidence.

05

Monitor and make the match reversible

Store source, retrieval date, record status, evidence, confidence, reviewer, related entity IDs, and undo instructions. Recheck material records when renewal, status, legal name, address, merger, acquisition, or parent relationships change.

Deliverable: candidate evidence, LEI search terms, full reference fields, status interpretation, relationship classification, brand-branch-entity map, campaign location, public contact source, ambiguous queue, reversible match log, refresh date, and owner.

LEAD ATLAS WORKBOOK

Turn this lesson into a research brief.

Apply “Legal Entity Identifiers in B2B Research: Match LEI Records Without Overclaiming” to one campaign before requesting or using a list.

  1. 01Market boundary

    Name the locations and business categories this decision applies to.

  2. 02Fit evidence

    Write the public signals that would make a business relevant enough to review.

  3. 03Exclusions

    List the business types, markets, and records that should not enter the campaign.

  4. 04Outreach use

    State who will review the list, personalize the message, and record outcomes.

THE TAKEAWAY

Use an LEI as one high-value identity signal, retain record status and update context, map legal entity, brand, and location separately, and keep unsupported businesses or stale records in review rather than forcing a match.

OFFICIAL REFERENCES

Check the platform’s current instructions.

Platform labels, eligibility, and workflows can change. These official help pages were used to validate this lesson.