CRO Number on Google Business Profile: Is It Required in Ireland?

Short answer: not under any specific Irish statute. Section 151 of the Companies Act 2014 names "business letters, order forms" and similar instruments. It does not name websites, and it certainly does not name Google Business Profile. The website obligation flows from a different source, the European Communities (Directive 2000/31/EC) Regulations 2003 (S.I. 68/2003), which requires identification information to be "easily, directly and permanently accessible." A GBP listing sits even further outside the scope of either source.

Long answer: add the CRO number to your Google Business Profile anyway. The cost is one paragraph of text, the trust benefit is meaningful, and the regulatory grey area gets covered for free. Below is what the Irish regime actually requires, where the line falls, and the exact wording to drop into the description.

What the Companies Act 2014 actually says

Section 151 of the Companies Act 2014 sets out the company information that must appear on certain documents. It lists, without exhaustion, business letters, order forms and similar business correspondence. The required disclosures are:

• the company's full name
• its registered number and place of registration
• the address of its registered office
• the names of its directors

The CRO publishes guidance to the same effect at cro.ie/registration/company/incidental-obligations/letterheads/. Section 1304 of the Companies Act 2014 imposes corresponding obligations on external companies, foreign companies that have established a branch in the State.

The bridge from section 151 to the website is the European Communities (Directive 2000/31/EC) Regulations 2003 (S.I. 68/2003), which transpose the E-Commerce Directive into Irish law. Those regulations apply to information society services, that is, services normally provided for remuneration at a distance by electronic means. They require identification information to be made "easily, directly and permanently accessible." The CRO number is one of the specified items.

Penalties for breach of section 151 are summary in nature, with daily default fines for continuing contraventions. The practical pressure usually comes from contract-counterparty due diligence, not from prosecution.

For the website-specific obligation in detail, see our separate guide (TODO: /ie/en/guides/cro-number-website-required once it ships).

CRO is not Companies House

Many Irish SMBs that also trade in the UK get this wrong on the GBP description. Companies House and the CRO are separate registers. Each company has a number issued by the register where it was incorporated. A company incorporated in the Republic of Ireland has a CRO number, not a Companies House number, even if it has a UK trading address. A company incorporated in England or Northern Ireland has a Companies House number, not a CRO number, even if it operates in Cork or Galway.

If you operate in both jurisdictions, list the register that actually issued your number. Listing both registers, or the wrong one, is a bigger trust failure than omitting the disclosure entirely.

What this means for Google Business Profile

A Google Business Profile is a third-party listing maintained by Google. The HTML, the moderation and the storage all sit on Google's infrastructure. Sliding it under either section 151 (letters and order forms) or S.I. 68/2003 (information society services) requires a stretch.

Section 151 lists physical and digital documents originating from the company. A GBP description is content the company submits to Google, but Google publishes. S.I. 68/2003 captures information society services, which is the company's own digital presence rather than its listings on third-party platforms. So the regulator-facing answer is: your CRO number must appear on your own website, and almost certainly does not have to appear on your GBP listing.

The practical answer differs:

• Customers verify on Google before they call. Anyone comparing services in Cork, Dublin or Limerick glances at the description as the first credibility check. A CRO number anchors the listing to a real registered entity.
• AI Overviews and ChatGPT scrape GBP descriptions. Search engines and large language models use Business Profile content to ground entities. A profile with "CRO number 487654" links the company to a verifiable record. A profile without is harder to disambiguate.
• It removes the regulatory grey area. A GBP review that one day clarifies whether third-party listings count as part of the information society service of the listed business will not punish anyone who already complied.

Register-specific facts

The CRO number is typically up to seven digits. There is no prefix. Each company receives one at incorporation, looked up free at the official Companies Online Registration Environment at core.cro.ie.

Sole traders are not in the Companies Register. If a sole trader trades under a name other than their own, that name must be registered under the Registration of Business Names Act 1963. The Registered Business Name (RBN) is the analogue of the CRO number for that purpose. RBN registrations receive their own number and appear in the same CORE database.

Different company suffixes attract the same section 151 obligation: Designated Activity Company (DAC), Company Limited by Guarantee (CLG), Public Limited Company (PLC), Unlimited Company (ULC). The number format and the disclosure obligation do not change.

Worked example

O'Sullivan Construction Limited has been building extensions, attic conversions, and new builds across Cork city since 2011. Fully insured, SCSI-registered. Free quotes within 48 hours. CRO number 487654. Registered office: Cork.

Character count: 219. Comfortably below the 250-character preview cut-off.

What is not in the example: no website URL (Google strips them), no second phone number (the profile already has a phone field), no VAT number (it belongs on the website footer rather than in marketing copy), and no PPSN of any director (see below).

What not to put in the GBP description

• VAT number. It belongs on your website if you trade as an information society service, not in marketing copy.
• Director PPSN. Since 11 June 2023, director PPSNs are required on certain CRO filings (Form A1, B1, B10) but the PPSN itself is not a public-register identifier. It must never appear on a Google Business Profile or any other public-facing surface. The DPC treats unnecessary exposure of PPSNs as a serious data-protection failing.
• Bank details or IBAN. A public profile is not a payment instrument and exposing bank details invites fraud.
• Long blocks of legal text. Cookie notices and terms belong on the website. The description is for marketing plus identification.
• URLs. Google rejects them. Use the website field on the profile.
• Repeated phone number. Use the phone field. A duplicate triggers Google's spam review.

Where each disclosure belongs

Five-minute fix

1. Sign in at business.google.com using the Google account that owns the listing.
2. Choose the right business if you manage more than one.
3. Open Edit profile, then About, then Description.
4. Append a sentence such as "CRO number 487654. Registered office: Cork." to the end of the first 250 characters.
5. Save. Google's review typically clears the change within 24 to 48 hours.

If the update is rejected, the most common cause is an embedded URL or phone number. Strip them out and resubmit.

Frequently asked questions

Do I have to put my CRO number on my Google Business Profile?

No, not under section 151 of the Companies Act 2014 directly. Section 151 names letterheads, order forms and business correspondence. The website obligation is implied by the European Communities (Directive 2000/31/EC) Regulations 2003 (S.I. 68/2003), which requires identification information to be easily, directly and permanently accessible. A Google Business Profile is one step further removed, a third-party listing not run by your company. In practice you should add the CRO number anyway because the cost is zero and the trust benefit is high.

What is the difference between a CRO number and a VAT number on my profile?

A CRO number identifies the company at the Companies Registration Office. A VAT number is issued by Revenue and is used for tax purposes. They serve different functions, which is why both can appear on a website but only the CRO number belongs in a Google Business Profile description. VAT numbers in the GBP description add visual noise without adding trust signal for consumers.

Can sole traders or business names display anything similar?

Yes. Sole traders trading under a name other than their own register that name under the Registration of Business Names Act 1963 and receive a separate Registered Business Name (RBN) number. Companies and other registered entities use their CRO number. Sole traders trading under their own name display the trading name in the profile and a service address. Foreign companies with a branch in the State are caught by section 1304 of the Companies Act 2014.

Does the Data Protection Commission care about my GBP description?

Only if the description contains personal data of identifiable individuals. The CRO number itself is public information about the entity and does not engage the GDPR. Director PPSNs, by contrast, are personal data and must never appear in a description. The DPC has published enforcement decisions about businesses that exposed personal identifiers in customer-facing copy.

Want to know if your website is compliant?

Adding your CRO number to GBP is free. The harder question is whether your website itself meets the section 151 plus S.I. 68/2003 disclosure regime: registered name and number in the footer, registered office, a privacy notice under the GDPR, a cookie banner under the ePrivacy Regulations, and consumer rights notices if you sell online.

Run a free scan and see within two minutes which mandatory disclosures are missing. No account needed.

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This is technical analysis, not legal advice. Speak to a solicitor for advice on your specific situation.