How the Irish name rules work
Under the Companies Act 2014, the Registrar of Companies can refuse a name that is identical to, a shortened version of, or too similar to a name already on the register. The Registrar can also refuse a name that is offensive, that suggests state sponsorship, or that is undesirable or likely to cause confusion (section 26).
Words that do not make a name different
When the CRO compares your name with existing ones, some words are ignored. Adding them to an existing name does not make it new:
- “The”, “company”, “co”, “corporation”, “and”, “&”
- “Service” and “services”
- “Limited”, “Ltd” and the other company type endings
- Place names such as “Ireland”, “Dublin” or “West”
So “Green Leaf Services Ireland Ltd” is compared as “Green Leaf”. General trade words such as “Holdings”, “Group” or “Solutions” are allowed, but a name that differs from an existing one only by such a word is usually treated as too similar.
Words that need consent first
- “Bank”, “banking”, “banker”: consent from the Central Bank of Ireland
- “Society”, “co-op”, “co-operative”: consent from the Registrar of Friendly Societies
- “University”, “Institute of Technology”: consent from the Department of Education
- “Architect”: consent from the Royal Institute of the Architects of Ireland (RIAI)
- “Credit union” cannot be used by a company under the Credit Union Act 1997
The ending must match the company type
A private company limited by shares ends with “Limited” or “Teoranta” (“Ltd” or “Teo”). A designated activity company ends with “DAC”, a company limited by guarantee with “CLG”, a public limited company with “PLC” and an unlimited company with “UC”. Each ending has an Irish-language form, so a name can be registered in Irish.
From a free name to a registered company
- Check the name above. Free and instant.
- Ask for a free expert review. A company secretary checks the name the way the CRO does and suggests alternatives if needed, usually within one business day.
- Reserve the name. The CRO can hold a name for 28 days for a fee of EUR 25, and extend it once for another 28 days (sections 28 and 29). See Company Name Reservation.
- Register the company. Choose the package that fits where you live: non-residents, EU residents or Irish residents.
Why names get refused
- The same distinctive words as an existing company, with only ignored words added or removed.
- A name that sounds the same as an existing one, even if spelt differently.
- A sensitive word used without the consent listed above.
- A name that suggests a link with the State or a public body.
Even after registration, another company can object within six months that your name is too similar to theirs, and the Registrar can direct you to change it (section 30). A careful check before you file avoids that. Read more in common company name mistakes and how to change a company name in Ireland.
Frequently asked questions
Is the name check really free?
Yes. The instant check and the expert review are both free. You pay only if you decide to reserve the name or register a company with us.
Is the result final?
No. The check is guidance. The Registrar of Companies makes the final decision when the company is registered.
What is the difference between a company name and a business name?
A company name belongs to a limited company registered with the CRO. A business name is a trading name used by a person or a company whose real name is different, and it is registered separately as a business name.
What should I do if my name is taken?
Add or change a distinctive word, not a general one. “Green Leaf Ltd” becoming “Green Leaf Group Ltd” will usually fail, while “Green Leaf Harbour Ltd” may pass. Our expert review suggests alternatives.
Can I register a company name in Irish?
Yes. Every company type has an Irish-language ending, for example “Teoranta” for a private company limited by shares.