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This guide is outdated and will be removed on 1 November 2026. The up-to-date Guernsey reference is on the Guernsey country page.

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This guide contains public integration notes for Guernsey. Use it for identifier formats, search behavior, and country-specific caveats. The live source of truth for coverage, pricing, data sources, documents, legal forms, roles, and status values is the pricing page.

Guernsey coverage, pricing, and sources

Open the current catalog for supported datapoints, documents, sources, identifiers, and availability.
Country details below are preserved as integration notes. If a table or example conflicts with the live pricing page, use the pricing page as the source of truth and contact support.

Table of Contents

Data Sources

Guernsey uses a single official registry for all entity types. Data comes from the Guernsey Registry — there is no cross-registry merging.

Commercial companies, partnerships & foundations

  • Guernsey Registry — Operated by the Guernsey Financial Services Commission (GFSC) under the Companies (Guernsey) Law, 2008. The Registry Portal at portal.guernseyregistry.com provides a public API covering companies (Non-Cellular, Protected Cell, Incorporated Cell), Limited Partnerships, Limited Liability Partnerships, and Foundations. This is the sole source for all structured entity data: company name, legal form, status, incorporation date, registered address, economic activity, directors, and other officials.

Charities & non-profits

  • Guernsey Registry — Charities and Non-Profit Organisations are registered through the same Registry Portal under the Charities and Non Profit Organisations (Registration) (Guernsey) Law, 2008. The API exposes the same endpoints for these entity types, including officer data (Chairperson, Treasurer, Secretary) and available documents.
All Guernsey Registry data is publicly available without authentication. The API has a rate limit of 60 requests per minute.
All data comes live from the Guernsey Registry. A company profile combines the entity’s basic details (name, status, entity type, registration number), its registered address and registration date, its economic activity, its filing history (used to find the incorporation date) and its previous names. Key persons come from the entity’s registered officials (Directors, Resident Agents, General Partners, Councillors, etc.).Legal form is mapped deterministically from the Registry’s entity type; status and activity codes are enriched using AI.

Company Identifiers

Query Identifiers

Guernsey entities are identified using a registration number prefixed by the entity type: The prefix is uppercase and followed directly by the digits, with no space and no leading zeros. In the records we have seen, the number has 1 to 5 digits (LP3, CMP27104).
Always use the full prefixed registration number, exactly as search returns it. Each register numbers its entities separately, so the same digits can belong to different entities: CMP321 is a company and LP321 a limited partnership. The numeric part alone (e.g. 10001 instead of CMP10001) does not identify one entity.
Search can also return Guernsey trade mark records, numbered GGGT followed by digits (e.g. GGGT8562). These are not companies.

Identifiers in API Response

The Guernsey register does not publish VAT numbers or SIREN equivalents. An optional LEI may be returned from GLEIF as described below.
GLEIF is the supplementary data source for this identifier. company.identifiers.lei is optional. It is returned when the Guernsey register number matches a registration or validation reference in GLEIF and identifies a single LEI. The LEI has 20 uppercase letters and digits, ending in two digits. Coverage varies by entity; a missing LEI does not establish that the company has none. Lapsed or retired LEIs can still be returned. Annulled LEIs are excluded, so the presence of this identifier does not establish current LEI registration status. The legal name must also agree with the LEI record because the same bare number can identify a company and a limited partnership.

Search Capabilities

Search uses live Registry API lookups. Both name and identifier searches query the Guernsey Registry’s public-search endpoint in real time. Name searches accept free text with a minimum of 2 characters and a maximum of 100 characters.
Use registration number searches for exact matching and best performance. Name searches may return multiple results across different entity types (companies, charities, NPOs, foundations, partnerships).

Active companies only

Search can return companies that are no longer active. Each result carries the register’s status, so activeOnly=true removes the inactive ones.

Quirks & Gotchas

Statutory Filings

Guernsey companies file an annual validation, the local equivalent of a confirmation statement, confirming the entity’s particulars are current. The Registry publishes the date it next falls due, returned on the cross-country statutoryFilings field.
The Registry exposes no “last filed” date, so only next.dueDate is populated. Guernsey companies file no public financial statements, so there is no accounts obligation to report. See Compliance Signals & Statutory Filings for the full field reference.

Mappings

Company Status

Company status is extracted from the Guernsey Registry’s entityStatusDesc field. The active flag is determined deterministically from a known list of active statuses. The standardized status (statusDetails) is AI-enriched.

Active Statuses

At-Risk Statuses

Winding Up Statuses

Inactive / Closed Statuses

Dissolved Statuses

Guernsey uses entity type IDs from the Registry API. The entity type set is closed and statutory, so the local name, English name, standardized category and ISO 20275 (ELF) code are all mapped deterministically. No AI is involved in the legal form.
Guernsey’s ISO 20275 vocabulary splits companies by liability (limited by shares, limited by guarantee, mixed liability, unlimited), and each carries a different ELF code. The Registry does not publish which of those a given company is, so no ISO 20275 code is returned for the generic company types rather than an inferred one.

Companies

Partnerships

Foundations & Non-Profits

Charities

Other Entity Types (not company profiles)

The local legal form name from the Registry is always preserved verbatim.
Legal representatives are extracted from the Guernsey Registry’s relationships endpoint. Classification is deterministic for known relationship types (no AI needed). Both individuals and corporate entities can hold legal representative roles.

Other Key Persons

A foundation guardian enforces its constitution and purpose for founders and beneficiaries. This supervisory office is returned under otherKeyPersons; it does not establish general authority to bind the foundation. See the Foundations (Guernsey) Law.
Uncertain Roles (AI-parsed): The “Other Managing Official” role (always individual) is ambiguous. For charities/NPOs, these are typically trustees with collective signing authority and are classified as Legal Representatives by AI. For companies, they are usually classified as Other Key Persons unless they have explicit signing authority.

Structural Relationships (excluded from key persons)

The following relationship types appear in the API but are not mapped to key persons:

Shareholders

No shareholder data available. Shareholder and ownership information is private in Guernsey and is not disclosed through the public Registry. Neither ownership percentages nor beneficial ownership data is available.

Activity Code Mapping

Guernsey uses its own GFSC economic activity classification with dotted numeric codes (e.g., 10.5.7, 02.9.1). These codes do not directly map to European or international standards. NACE and ISIC codes are always AI-inferred from the activity description text.
Some entities have NA as their economic activity classification, indicating no specific activity has been assigned. In these cases, no activity codes are returned. Both NACE and ISIC codes are always AI-inferred for Guernsey entities — check the isAIInferred flag.

Data Availability

Data Availability Matrix

Legend: ✅ Available | ❌ Not Available | Async = Asynchronous processing

Documents by Company Type

Certificate of Good Standing is only available for entities with an active status (Normal, Registered). Dissolved, wound up, or struck off entities cannot obtain this certificate.

Example API Responses

All examples use placeholder data. Query: POST /v2/company with { "id": "<id>", "countryCode": "GG", "dataPoints": ["company", "legalRepresentatives"] }
Note: Corporate directors are enriched with additional company data (registration number, legal form, status, address) via a secondary entity lookup. This is a common pattern in Guernsey where trust companies act as directors.
Note: Dissolved companies include legacyLegalNames when previous names exist. Officials data is typically empty for dissolved entities.
Note: Foundations use “Councillor” as the legal representative role (equivalent to directors for governance). The “Guardian” role is returned as an Other Key Person with supervisory duties. Resident Agent is always classified as Other Key Person.
Note: Non-profits have a Chairperson as the primary legal representative, with Treasurer and Secretary as other key persons. Note the compound surname “Le Gallez” — common in Guernsey due to French/Norman heritage.
Note: Charities can have corporate directors (Director role) even though they are non-profit entities. The “In Default” status indicates the entity has failed to meet filing obligations.
Documents are returned when "dataPoints": ["availableDocuments"] is requested.Commercial entities (CMP, LP, LLP, FND):Charities and Non-Profits (CH, NP):