At the end of November 2023 Google announced extended structured data support for Organizations. This included the option to provide ISO 6523 identifiers for your organization via the iso6523Code schema.org property. These identifiers consist of an ICD (International Code Designator) that indicates the type of identifier and the identifier itself. e.g. Our Australian Business Number (ABN) identifiers have an ICD of 0151, making my business iso6523Code “0151:55609885501”. This property can accept an array of values, letting you identify your business in multiple ways. Many countries have an ICD for their business tax identifier (e.g. VAT number), and there are some more global ones available, e.g.:
0060: Dun & Bradstreet Data Universal Numbering System (DUNS)0088: GS1 Global Location Number (GLN)0199: Legal Entity Identifier (LEI)
Here’s a simple example of an Organization listing some business identifiers. This was provided by Matthias Wiesmann, who knows a thing or two about this stuff (as in a lot):
{
"@context" : "https://schema.org",
"@type" : "Organization",
"name": "Klick-Tipp Limited",
"url" : "https://www.klicktipp.com/",
"iso6523Code": ["0199:9845000B1ED2C9F55818", "0060:2216853822", "9932:113364153"],
"address" : {
"@type" : "PostalAddress",
"addressCountry": "UK",
"addressLocality": "London",
"streetAddress": ["15 Cambridge Court", "210 Shepherd’s Bush Road"],
"postalCode": "W6 7NJ"
}
}
source
Our BigCommerce SEO Rich Snippets users do not have to worry about all this. The app has a nice interface to help you add your business identifiers as well as all the other business information that Google is interested in.

It’s quite hard to find the ICDs that are appropriate for online businesses. So I decided to list them here:
| ICD | Name |
|---|---|
| 0002 | System Information et Repertoire des Entreprise et des Etablissements: SIRENE |
| 0007 | Organisationsnummer |
| 0009 | SIRET-CODE |
| 0037 | LY-tunnus |
| 0060 | Data Universal Numbering System (D-U-N-S Number) |
| 0088 | EAN Location Code |
| 0096 | DANISH CHAMBER OF COMMERCE Scheme (EDIRA compliant) |
| 0097 | FTI – Ediforum Italia, (EDIRA compliant) |
| 0106 | Vereniging van Kamers van Koophandel en Fabrieken in Nederland (Association of Chambers of Commerce and Industry in the Netherlands), Scheme (EDIRA compliant) |
| 0130 | Directorates of the European Commission |
| 0135 | SIA Object Identifiers |
| 0142 | SECETI Object Identifiers |
| 0147 | Standard Company Code |
| 0151 | Australian Business Number (ABN) Scheme |
| 0170 | Teikoku Company Code |
| 0183 | Numéro d’identification suisse des enterprises (IDE), Swiss Unique Business Identification Number (UIDB) |
| 0184 | DIGSTORG |
| 0188 | Corporate Number of The Social Security and Tax Number System |
| 0190 | Dutch Originator’s Identification Number |
| 0191 | Centre of Registers and Information Systems of the Ministry of Justice |
| 0192 | Enhetsregisteret ved Bronnoysundregisterne |
| 0193 | UBL.BE party identifier |
| 0194 | KOIOS Open Technical Dictionary |
| 0195 | Singapore UEN identifier |
| 0196 | Kennitala – Iceland legal id for individuals and legal entities |
| 0198 | ERSTORG |
| 0199 | Global legal entity identifier (GLEIF) |
| 0200 | Legal entity code (Lithuania) |
| 0201 | Codice Univoco Unità Organizzativa iPA |
| 0202 | Indirizzo di Posta Elettronica Certificata |
| 0203 | eDelivery Network Participant identifier |
| 0204 | Leitweg-ID |
| 0205 | CODDEST |
| 0208 | Numero d’entreprise / ondernemingsnummer / Unternehmensnummer |
| 0209 | GS1 identification keys |
| 0210 | CODICE FISCALE |
| 0211 | PARTITA IVA |
| 0212 | Finnish Organization Identifier |
| 0213 | Finnish Organization Value Add Tax Identifier |
| 0215 | Net service ID |
| 0216 | OVTcode |
| 0217 | The Netherlands Chamber of Commerce and Industry establishment number |
| 0218 | Unified registration number (Latvia) |
| 0221 | The registered number of the qualified invoice issuer |
| 0225 | FRCTC ELECTRONIC ADDRESS |
| 0230 | National e-Invoicing Framework |
| 9901 | Danish Ministry of the Interior and Health |
| 9910 | Hungary VAT number |
| 9913 | Business Registers Network |
| 9914 | Österreichische Umsatzsteuer-Identifikationsnummer |
| 9915 | Österreichisches Verwaltungs bzw. Organisationskennzeichen |
| 9918 | SOCIETY FOR WORLDWIDE INTERBANK FINANCIAL, TELECOMMUNICATION S.W.I.F.T |
| 9919 | Kennziffer des Unternehmensregisters |
| 9920 | Agencia Española de Administración Tributaria |
| 9922 | Andorra VAT number |
| 9923 | Albania VAT number |
| 9924 | Bosnia and Herzegovina VAT number |
| 9925 | Belgium VAT number |
| 9926 | Bulgaria VAT number |
| 9927 | Switzerland VAT number |
| 9928 | Cyprus VAT number |
| 9929 | Czech Republic VAT number |
| 9930 | Germany VAT number |
| 9931 | Estonia VAT number |
| 9932 | United Kingdom VAT number |
| 9933 | Greece VAT number |
| 9934 | Croatia VAT number |
| 9935 | Ireland VAT number |
| 9936 | Liechtenstein VAT number |
| 9937 | Lithuania VAT number |
| 9938 | Luxemburg VAT number |
| 9939 | Latvia VAT number |
| 9940 | Monaco VAT number |
| 9941 | Montenegro VAT number |
| 9942 | Macedonia, the former Yugoslav Republic of VAT number |
| 9943 | Malta VAT number |
| 9944 | Netherlands VAT number |
| 9945 | Poland VAT number |
| 9946 | Portugal VAT number |
| 9947 | Romania VAT number |
| 9948 | Serbia VAT number |
| 9949 | Slovenia VAT number |
| 9950 | Slovakia VAT number |
| 9951 | San Marino VAT number |
| 9952 | Turkey VAT number |
| 9953 | Holy See (Vatican City State) VAT number |
| 9957 | French VAT number |
| 9959 | Employer Identification Number (EIN, USA) |