Luxembourg

Data Sources
Company Identifiers
Search Capabilities
Quirks & Gotchas
Mappings
Data Availability
Example API Responses

Data Sources

Luxembourg uses a single official registry as its primary data source. All structured company data is extracted from a certified trade register extract document via AI parsing.

All company types

RCS (Registre de Commerce et des Societes) — Operated by Luxembourg Business Registers (LBR), an economic interest grouping comprising the State, the Chamber of Commerce, and the Chamber of Skilled Trades, under the authority of the Ministry of Justice since 2003. The RCS is the central commercial register for the Grand Duchy of Luxembourg, containing registration data for virtually all legal entities: commercial companies, partnerships, sole traders, civil companies, non-profit associations (ASBLs), foundations, investment funds, and branches of foreign entities. It is our sole data source for Luxembourg entities. The system retrieves a certified extract (“Extrait du RCS”) for each company, from which all structured data is AI-parsed: company name, legal form, status, registration date, registered address, share capital, activity codes, legal representatives, and shareholders.
VIES (VAT Information Exchange System) — The EU-wide VAT validation service is used exclusively during VAT number searches to resolve a Luxembourg VAT number to a company name, which is then used to search the RCS. VIES is not a data source for company profile data.

Document-based data extraction: Unlike registries that expose structured APIs, the Luxembourg RCS delivers data as certified PDF documents (“Extrait du RCS”). All company attributes — including legal form, status, legal representatives, and shareholders — are extracted from these documents using AI parsing. This means data quality depends on the document content and parsing accuracy. The only structured data available directly from the RCS API is the NACE code and basic search information (company name, ID, legal form abbreviation, and address).

Company Identifiers

Query Identifiers

Company Type	Source	Format	Example	Notes
Commercial companies	RCS	Letter prefix + digits	`B246607`	Standard RCS registration number
By VAT number	VIES	LU + 8 digits	`LU32326416`	EU VAT number lookup via VIES

RCS Number Format: The Luxembourg RCS number consists of a letter prefix followed by digits (e.g., B246607). The prefix indicates the entity type: B for commercial companies is the most common. The regex validation pattern is ^[A-Z]\d+$.

RCS Number Prefixes

Prefix	Entity Type
`B`	Commercial companies (SA, SARL, SAS, SCA, etc.)
`J`	Groupements d’interet economique (GIE/GEIE)
`S`	Branches of foreign entities (succursales)
`F`	Foundations (fondations)
`A`	Non-profit associations (ASBL)
`G`	Mutual insurance associations
`C`	Cooperatives (older registrations)

Identifiers in API Response

Once you retrieve company data, the identifiers object contains all available identifiers for that entity:

Identifier Type	Format	Example	Found In
`RCS`	Letter prefix + digits	`B246607`	All registered entities
`VAT`	LU + 8 digits	`LU32326416`	Companies with VAT registration (AI-extracted from document)

Search Capabilities

Search Type	Pattern	Example	Match Type	Expected Results
By RCS Number	Letter + digits	`B246607`	Exact	Single company (1 result)
By VAT Number	LU + 8 digits	`LU32326416`	Exact via VIES	Single company (1 result)
By VAT (no prefix)	8 digits	`32326416`	Exact via VIES	Single company (1 result)
By Name	Text string (min 3 chars)	`"VREF Germany"`	Fuzzy	Multiple results

Search Performance: Identifier-based searches (RCS number, VAT) provide exact matching and faster results. Name searches query the RCS directly and may return multiple results across the register.

VAT Search Flow: VAT searches follow a two-step process: (1) validate the number via VIES to retrieve the official company name, then (2) search the RCS by that company name. The matched company is flagged as an id match and promoted to the top of results. Both formats are accepted: with country prefix (LU32326416) and without (32326416).

Search reliability: All search operations include built-in retry handling for reliability against the RCS API.

Quirks & Gotchas

Quirk	Details
All data is AI-parsed from documents	Company profile, legal representatives, and shareholders are all extracted from the RCS trade register extract (PDF) via AI parsing. There is no structured API for company attributes beyond basic search fields and NACE codes.
Email-based document delivery	The RCS extract is obtained through an asynchronous email workflow: the system requests the document, receives an email with a download link from `otx.etat.lu`, and retrieves the PDF. Typical delivery is approximately 1 hour, but can take up to 6 hours.
Asynchronous company profile	Because the company profile depends on the trade register extract document, profile delivery is asynchronous. The `companyProfile` datapoint will show `processing` until the document is received and parsed.
Status detection is heuristic + AI	Status is first detected by keyword search in the document text for closure terms (“radiee”, “dissous”, “dissolution”), then AI-enriched for standardization. Edge cases may exist for unusual status descriptions.
NACE codes from API, other data from document	The RCS API provides NACE codes directly with multilingual labels (French, English, German). All other company attributes (legal form, status, capital, legal representatives, shareholders) come from AI parsing of the certified extract.
RCS number prefix indicates entity type	The letter prefix (e.g., `B` for commercial, `S` for branches, `A` for ASBLs, `F` for foundations) indicates the entity type. See the prefix table above.
VAT format is 8 digits	Luxembourg VAT numbers follow the format `LU` + 8 digits (e.g., `LU32326416`), shorter than most EU countries.
Single document type	Only the Extrait du RCS (certified trade register extract) is currently available. No separate financial statements, articles of association, or UBO certificates.
No UBO data	Luxembourg maintains a Register of Beneficial Owners (RBE), also managed by LBR, but this register is not currently integrated. UBO data is not available from the RCS extract.
Document is also the data source	The Extrait du RCS serves a dual purpose: it is both the official company document delivered to the user and the source from which all structured data is AI-parsed. The SKU `LUX_REGISTER_EXTRACT` is charged alongside `LUX_COMPANY_DATA`.
SCSp has no legal personality	The Societe en commandite speciale (SCSp) is a legal form without legal personality, used primarily as an investment vehicle. It is registered in the RCS but may have limited data in the extract.

Mappings

Company Status

Company status is determined from the trade register extract document using a two-step process: (1) a keyword-based heuristic checks for closure indicators in the document text, then (2) the status is AI-enriched for standardization.

Local Status	English Translation	Standardized Status	Detection Method
Active	Active	`ACTIVE`	No closure indicators in document
Radiee	Struck Off	`CLOSED`	Document contains “radiee”
Dissous	Dissolved	`CLOSED`	Document contains “dissous”
Dissolution	Dissolution	`CLOSED`	Document contains “dissolution”
En liquidation	In Liquidation	`UNDER_INSOLVENCY_PROCEEDING`	AI-inferred from document context

If no closure indicators are found in the document text, the company is considered Active by default. The AI enrichment step maps the detected status to a standardized CompanyStatus enum value (ACTIVE, CLOSED, UNDER_INSOLVENCY_PROCEEDING, or UNKNOWN).

Legal Forms

Luxembourg legal forms are extracted from the RCS trade register extract via AI parsing. The legalFormCode field from search results provides an initial abbreviation, while the full legal form name is parsed from the certified extract document and AI-enriched to add English translations, standardized types, and ISO 20275 codes.

Because legal form standardization and ISO 20275 assignment are AI-enriched, exact mappings may evolve. The local Luxembourg legal form name from the RCS document is always preserved verbatim.

Key Business Forms

French Name	Abbreviation	English Translation	Standardized	ISO 20275
Societe a responsabilite limitee	S.a r.l. / SARL	Private Limited Liability Company	Limited Liability Company	`DVXS`
Societe a responsabilite limitee simplifiee	S.a r.l.-S	Simplified Private Limited Liability Company	Limited Liability Company	`EUT4`
Societe anonyme	SA	Public Limited Company	Corporation	`5GGB`
Societe par actions simplifiee	SAS	Simplified Joint-Stock Company	Corporation	`HHR4`
Societe en commandite par actions	SCA / SECA	Partnership Limited by Shares	Corporation	`81G5`

Partnerships

French Name	Abbreviation	English Translation	Standardized	ISO 20275
Societe en commandite simple	SCS / SECS	Limited Partnership	Partnership	`63P9`
Societe en nom collectif	SNC / SENC	General Partnership	Partnership	`ATQY`
Societe en commandite speciale	SCSp	Special Limited Partnership	Partnership	-

Sole Proprietorships

French Name	Abbreviation	English Translation	Standardized	ISO 20275
Entreprise individuelle	EI	Sole Proprietorship	Sole Proprietorship	`2IGL`

Cooperatives & European Forms

French Name	Abbreviation	English Translation	Standardized	ISO 20275
Societe cooperative	SC	Cooperative Society	Cooperative	-
Societas Cooperativa Europaea	SCE	European Cooperative Society	Cooperative	`FG84`
Societe europeenne	SE	European Company	Corporation	-
Groupement d’interet economique	GIE	Economic Interest Grouping	Other	-

Non-Profits & Foundations

French Name	Abbreviation	English Translation	Standardized	ISO 20275
Association sans but lucratif	ASBL	Non-Profit Association	Nonprofit Organization	`2JEI`
Fondation	-	Foundation	Nonprofit Organization	-
Association agricole	AA	Agricultural Association	Nonprofit Organization	`68J6`

Investment Vehicles

French Name	Abbreviation	English Translation	Standardized	ISO 20275
Societe d’investissement a capital variable	SICAV	Open-Ended Investment Company	Other	-
Societe d’investissement a capital fixe	SICAF	Closed-Ended Investment Company	Other	`BEAN`
Fond commun de placement	FCP	Common Investment Fund	Other	`AIR5`
Societe d’epargne-pension a capital variable	SEPCAV	Variable Capital Pension Savings Company	Other	`9C91`

Insurance & Mutual Associations

French Name	Abbreviation	English Translation	Standardized	ISO 20275
Association d’assurances mutuelles	AAM	Mutual Insurance Association	Other	`BKAB`
Mutuelle	-	Mutual Society	Other	`7SIZ`
Association d’epargne pension	ASSEP	Pension Savings Association	Other	`2S2U`

Foreign Entities

French Name	Description	Standardized	ISO 20275
Succursale d’une societe etrangere	Branch of a foreign company	Branch or Representative Office	-

Legal Representatives

Legal representatives are extracted from the RCS trade register extract via AI parsing. The AI looks for specific role terms in the document text, such as “Gerant”, “Administrateur”, “Directeur”, “President”, and “Membre du conseil d’administration”. Roles are then AI-enriched with standardized English translations and ISO 5009 codes (when an ISO 20275 ELF code is available for the company’s legal form).

Executive & Management Roles (Legal Representatives)

French Role	English Translation	Standardized	Typical Entity Type
Gerant	Manager	Manager	SARL, SCS
Gerant unique	Sole Manager	Manager	SARL (single manager)
Administrateur	Director	Director	SA
Administrateur-delegue	Managing Director	Managing Director	SA
Directeur	Director	Director	Various
Directeur general	Chief Executive Officer	Chief Executive Officer	SA
President	President	President	SAS
President du conseil d’administration	Chairman of the Board	Chairman of the Board	SA
Vice-president	Vice President	Vice President	SA, SAS
Associe-gerant	Managing Partner	Managing Partner	SCS, SCSp
Associe commandite	General Partner	General Partner	SCA, SCS
Liquidateur	Liquidator	Liquidator	Companies in liquidation

Supervisory & Control Roles (Other Key Persons)

French Role	English Translation	Standardized	Typical Entity Type
Commissaire aux comptes	Statutory Auditor	Auditor	SA, SARL (above threshold)
Reviseur d’entreprises	Certified Auditor	Auditor	Various
Reviseur d’entreprises agree	Approved Statutory Auditor	Auditor	SA (large companies)
Membre du conseil de surveillance	Supervisory Board Member	Supervisory Board Member	SA (dual board structure)
President du conseil de surveillance	Chairman of the Supervisory Board	Supervisor	SA (dual board structure)
Secretaire	Secretary	Secretary	Various

Both individuals and corporate entities can hold legal representative and other key person roles in Luxembourg companies. The classification of each role as legal representative (can legally bind the company) or other key person (supervisory, audit roles) is AI-enriched using ISO 5009 codes when the company’s ISO 20275 (ELF) code is available.

Shareholders

Shareholders are extracted from the RCS trade register extract via AI parsing. The AI looks for Luxembourg-specific shareholder terminology in the document text.

Extraction Logic

The AI parser identifies shareholders from specific sections of the trade register extract:

Source Section	Terms Searched	Data Extracted
Associe(s)	Associes, Actionnaires, Associe unique	Shareholder name, registration number, legal form, address
Parts sociales	Parts detenues, Nombre, Type(s) de parts	Share count, share type
Capital social	Apport, Participation au capital	Total capital for percentage calculation

Ownership Fields

Field	Description	Source
`sharePercentage`	Ownership percentage	Calculated from shares held / total shares
`type`	`individual` or `company`	Determined by AI from shareholder details
`numberOfShares`	Number of shares held	From “Parts detenues” section
`company.id`	RCS number of corporate shareholder	From “N d’immatriculation au RCS”
`company.legalName`	Name of corporate shareholder	From “Denomination” section
`company.countryCode`	Country of corporate shareholder	Inferred from registration details

Shareholder extraction quality depends on the structure and completeness of the trade register extract document. Both individual and corporate shareholders are supported. Percentage calculation is derived from the ratio of shares held to total shares when available. Not all legal forms publish shareholder information in the RCS extract — SAs (public limited companies) typically do not list individual shareholders in their extracts.

Activity Code Mapping

Luxembourg uses the NACE Rev. 2 classification directly from the RCS API. The RCS API provides NACE codes with multilingual labels (French, English, German) as structured data — this is one of the few data points not AI-parsed from the document. The system maps activity codes across two levels:

NACE Rev. 2 (European) --> ISIC Rev. 4 (International)

Classification	Source	Example	AI Inferred?
NACE	RCS API (`naceCode` field)	`7022`	No (official)
ISIC	Derived from NACE via mapping tables or AI	`7020`	Sometimes

When company data is AI-parsed from the trade register extract, activity descriptions may also be extracted from “Objet social” or “Activite principale” sections. These descriptions are used to enrich the activity classification when no NACE code is available from the API.

Data Availability

Data Availability Matrix

Data Type	Commercial Companies	Sole Proprietors	ASBLs / Foundations	Notes
Company Profile	✅ Async	✅ Async	✅ Async	AI-parsed from Extrait du RCS
Legal Representatives	✅	✅	✅	AI-parsed from document
Shareholders	✅	N/A	N/A	AI-parsed; mainly for SARL/SCS
Ultimate Beneficial Owners	❌	❌	❌	RBE register not integrated
Establishments	❌	❌	❌	Not available from RCS extract
Activity Codes (NACE)	✅	✅	✅	From RCS API (structured)
Capital	✅	N/A	N/A	AI-parsed, formatted in EUR
Documents	✅	✅	✅	Extrait du RCS only

Legend: ✅ Available | ❌ Not Available | N/A Not Applicable | Async = Asynchronous processing (document delivery typically ~1 hour)

Documents by Company Type

Document Type	API Category	Format	SKU	Availability	Estimated Delivery
Extrait du RCS	`certifiedTradeRegisterExtract`	PDF	`LUX_REGISTER_EXTRACT`	All registered entities	~1 hour (up to 6 hours)

Document Delivery Time: Luxembourg trade register extracts are delivered via an asynchronous email-based workflow. The system requests the document from the RCS portal, waits for an email response containing a download link (from otx.etat.lu), extracts the URL, and saves the PDF. Typical delivery time is approximately 1 hour, but can take up to 6 hours in exceptional cases.

The Extrait du RCS is the only document type currently available for Luxembourg. This certified extract serves as both the official company document and the primary source from which all structured data (company profile, legal representatives, shareholders) is AI-parsed.

Example API Responses

All examples use placeholder data. Query: POST /company with { "id": "<id>", "countryCode": "LU", "dataPoints": ["companyProfile", "availableDocuments"] }

Active S.a r.l. (Source: RCS Extract)

{
  "company": {
    "id": "B246607",
    "countryCode": "LU",
    "identifiers": { "RCS": "B246607" },
    "legalName": "Example Holdings S.a r.l.",
    "registrationDate": "2017-05-11",
    "incorporationDate": "2017-04-26",
    "activityDescription": "La prise de participations dans d'autres societes.",
    "status": {
      "localName": "Active",
      "active": true,
      "statusDetailsBeta": { "status": "ACTIVE" }
    },
    "legalForm": {
      "localName": "Societe a responsabilite limitee",
      "englishTranslation": "Limited Liability Company",
      "standardized": "Limited Liability Company",
      "iso20275Code": "DVXS"
    },
    "capital": {
      "amount": 27000,
      "currency": "EUR",
      "formatted": "27,000.00 EUR"
    },
    "activities": {
      "NACE": [{ "code": "6420", "description": "Activities of holding companies", "isAIInferred": false }],
      "ISIC": [{ "code": "6420", "description": "Activities of holding companies", "isAIInferred": true }]
    },
    "legalAddress": {
      "addressLine1": "9 Rue de Bitbourg",
      "city": "Luxembourg",
      "postalCode": "1273",
      "countryCode": "LU"
    }
  },
  "legalRepresentatives": [
    {
      "type": "individual",
      "role": {
        "localName": "Gerant",
        "standardized": "Manager",
        "iso5009Code": "ZULBC6"
      },
      "individual": {
        "name": { "firstName": "Jean", "lastName": "MUELLER", "fullName": "Jean MUELLER" }
      }
    },
    {
      "type": "individual",
      "role": {
        "localName": "Gerant",
        "standardized": "Manager",
        "iso5009Code": "ZULBC6"
      },
      "individual": {
        "name": { "firstName": "Marie", "lastName": "SCHMIT", "fullName": "Marie SCHMIT" }
      }
    }
  ],
  "shareholders": [
    {
      "type": "company",
      "sharePercentage": 100,
      "numberOfShares": 27000,
      "company": {
        "id": "B214572",
        "legalName": "Parent Holding Company S.a r.l.",
        "countryCode": "LU"
      }
    }
  ],
  "documents": {
    "certifiedTradeRegisterExtract": {
      "id": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
      "name": "Extrait du RCS",
      "description": "Extrait du registre de commerce luxembourgeois certifie",
      "descriptionInEnglish": "Certified Luxembourg trade register extract",
      "format": "pdf",
      "price": 13.50
    }
  }
}

Closed Company (Radiee)

{
  "company": {
    "id": "B100000",
    "countryCode": "LU",
    "identifiers": { "RCS": "B100000" },
    "legalName": "Ancienne Societe SA",
    "registrationDate": "2010-01-20",
    "status": {
      "localName": "Radiee",
      "active": false,
      "statusDetailsBeta": { "status": "CLOSED" }
    },
    "legalForm": {
      "localName": "Societe anonyme",
      "englishTranslation": "Public Limited Company",
      "standardized": "Corporation",
      "iso20275Code": "5GGB"
    },
    "capital": {
      "amount": 31000,
      "currency": "EUR",
      "formatted": "31,000.00 EUR"
    },
    "legalAddress": {
      "addressLine1": "15 Boulevard Royal",
      "city": "Luxembourg",
      "postalCode": "2449",
      "countryCode": "LU"
    }
  },
  "legalRepresentatives": [],
  "shareholders": []
}

Closed companies have active: false and status “Radiee” (struck off). Document data may be more limited compared to active companies, and legal representatives and shareholders may not always be present in the extract.

Search Response

{
  "results": [
    {
      "id": "B246607",
      "legalName": "Example Holdings S.a r.l.",
      "countryCode": "LU",
      "address": {
        "addressLine1": "9 Rue de Bitbourg",
        "city": "Luxembourg",
        "postalCode": "1273",
        "countryCode": "LU"
      }
    },
    {
      "id": "B179987",
      "legalName": "Another Example SARL",
      "countryCode": "LU",
      "address": {
        "addressLine1": "7A Rue Robert Stumper",
        "city": "Luxembourg",
        "postalCode": "2557",
        "countryCode": "LU"
      }
    }
  ]
}

VAT Search Response (with ID Match)

{
  "results": [
    {
      "id": "B246607",
      "legalName": "Example Holdings S.a r.l.",
      "countryCode": "LU",
      "address": {
        "addressLine1": "9 Rue de Bitbourg",
        "city": "Luxembourg",
        "postalCode": "1273",
        "countryCode": "LU"
      },
      "matchReason": {
        "matchType": "id",
        "identifier": { "VAT": "LU32326416" }
      }
    }
  ]
}

VAT searches return results with a matchReason object indicating the match type (id) and the identifier used. The matched company is promoted to the top of results.

Available Documents

{
  "documents": {
    "certifiedTradeRegisterExtract": {
      "id": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
      "name": "Extrait du RCS",
      "description": "Extrait du registre de commerce luxembourgeois certifie",
      "descriptionInEnglish": "Certified Luxembourg trade register extract",
      "format": "pdf",
      "price": 13.50
    }
  }
}

API Category	Document	Format	Notes
`certifiedTradeRegisterExtract`	Extrait du RCS	PDF	All registered entities, email-based delivery (~1 hour)

Western Europe

Northern Europe

Southern Europe

Central & Eastern Europe

Crown Dependencies & Offshore

Asia & Indian Ocean

Table of Contents

Data Sources

All company types

Company Identifiers

Query Identifiers

RCS Number Prefixes

Identifiers in API Response

Search Capabilities

Quirks & Gotchas

Mappings

Company Status

Legal Forms

Key Business Forms

Partnerships

Sole Proprietorships

Cooperatives & European Forms

Non-Profits & Foundations

Investment Vehicles

Insurance & Mutual Associations

Foreign Entities

Legal Representatives

Shareholders

Extraction Logic

Ownership Fields

Activity Code Mapping

Data Availability

Data Availability Matrix

Documents by Company Type

Example API Responses

Western Europe

Northern Europe

Southern Europe

Central & Eastern Europe

Crown Dependencies & Offshore

Asia & Indian Ocean

​Table of Contents

​Data Sources

​All company types

​Company Identifiers

​Query Identifiers

​RCS Number Prefixes

​Identifiers in API Response

​Search Capabilities

​Quirks & Gotchas

​Mappings

​Company Status

​Legal Forms

​Key Business Forms

​Partnerships

​Sole Proprietorships

​Cooperatives & European Forms

​Non-Profits & Foundations

​Investment Vehicles

​Insurance & Mutual Associations

​Foreign Entities

​Legal Representatives

​Shareholders

​Extraction Logic

​Ownership Fields

​Activity Code Mapping

​Data Availability

​Data Availability Matrix

​Documents by Company Type

​Example API Responses

Table of Contents

Data Sources

All company types

Company Identifiers

Query Identifiers

RCS Number Prefixes

Identifiers in API Response

Search Capabilities

Quirks & Gotchas

Mappings

Company Status

Legal Forms

Key Business Forms

Partnerships

Sole Proprietorships

Cooperatives & European Forms

Non-Profits & Foundations

Investment Vehicles

Insurance & Mutual Associations

Foreign Entities

Legal Representatives

Shareholders

Extraction Logic

Ownership Fields

Activity Code Mapping

Data Availability

Data Availability Matrix

Documents by Company Type

Example API Responses