Can I Use CO In My Business Name?

Sapna Goundan
bySapna Goundan4 min read

You have likely seen the abbreviation CO at the end of some business names and might be wondering whether it’s fine to use at the end of your business name.

The short answer is yes.

CO is simply short for company. Therefore, if you are setting up a company and like the idea of adding CO to the end of your business name, it’s likely fine to do so.

What Is A Business Name?

A business name is the name your business or company trades under. This is the name the public recognises and is likely to be on all your signs, posters, website, emails and other forms of communication or marketing.

It’s essentially the name your business is identified with.

You might be thinking, “this is pretty self explanatory”. However, people often get confused between a business name and a company name. A company name is different from a business name and must be registered separately unless you meet one of the exceptions.

Keep reading to know more.

Do I Need To Register My Business Name?

Yes, business names do need to be registered. There are only three exceptions to registering a business name and they apply when:

  • You are a sole trader operating under your own name
  • Your business is a partnership and all the partners are using their own names as the business name
  • You have a registered company name and the business name is identical to the company name

If you don’t meet one of these exceptions, then you will need to get your business name registered.

If you need help, reach out to us today to get your business name registered.

Can I Use Co In My Business Name In New Zealand?

Yes, just be mindful that it implies that your business is a company (although it doesn’t recognise a legal status). Otherwise, it’s perfectly fine for you to use the abbreviation of CO in your business name.

There are a number of other abbreviations businesses like to use at the end of their names such as .NET or even characters and numbers. The possibilities are huge - just make sure you are not setting your eyes on a name that is likely to be rejected due to being inappropriate.

You can learn more about restricted words and expressions in business names from the New Zealand Companies Office.

Can I Check If A Business Name Is Available?

Yes, you can check to see if a business name is available before you make a move to get it registered. It’s pretty disappointing to have your heart set on a name only to find out it’s already been taken!

In order to avoid this, look up the name you have in mind on the New Zealand Companies Office website to see if it is available.

Protecting A Business Name

Keep in mind that registering a business name doesn’t make that name legally yours. If you want to own your business name and get it legally protected, you will need to register it as a trade mark.

Getting a business name registered as a trade mark is a completely separate process that must be done with IPONZ (Intellectual Property Office of New Zealand). It involves a pretty comprehensive application which, once approved, puts your trade mark up for opposition.

During this period, someone can come forward to protest your trademark being registered. If this happens, you will be required to submit evidence in defence. We’ve written more about what goes down in a trade mark opposition if you ever find yourself in this situation.

It’s always handy to have a legal expert present when getting a trade mark registered to make sure it all goes well!

Key Takeaways

It should be fine for you to use CO in your business name. However, when registering your business name, it’s important to be mindful of your legal obligations. To summarise what we’ve discussed:

  • Co is an abbreviation for the word company and can be used at the end of a business name
  • A business name is the name a business trades under and is publicly known for
  • Yes, a business name must be registered unless it meets one of the exceptions
  • You can check online to see if a business name is available before registering it
  • If you are looking to protect your business name legally, then consider getting it trademarked

If you would like a consultation on using CO in your business name, or other legal obligations you might have regarding the business set up process, you can reach us at 0800 002 184 or team@sprintlaw.co.nz for a free, no-obligations chat.

Sapna Goundan
Sapna Goundancontent writer

Sapna is a content writer at Sprintlaw. She has completed a Bachelor of Laws with a Bachelor of Arts. Since graduating, she has worked primarily in the field of legal research and writing, and now helps Sprintlaw assist small businesses.

Need legal help?

Get in touch with our team

Tell us what you need and we'll come back with a fixed-fee quote - no obligation, no surprises.

Keep reading

Related Articles

What Is Sweat Equity In NZ? Startup Guide

What Is Sweat Equity In NZ? Startup Guide

If you’re building a startup, cash can be tight (especially in the early days when you’re still proving the product, the market, and your revenue model). That’s where sweat equity often comes...

8 Jul 2026
Read more
Founder and Shareholder Agreements for New Zealand Product Design Studios

Founder and Shareholder Agreements for New Zealand Product Design Studios

A founder and shareholder agreement can make or break a New Zealand product design studio. This guide explains what to include, the legal issues to check

8 Jul 2026
Read more
What To Do If A Business Partner Dies In New Zealand: Legal Steps

What To Do If A Business Partner Dies In New Zealand: Legal Steps

If a business partner dies, it can be a shock on a personal level and a serious risk on a business level. In the middle of grief, you may suddenly be dealing...

8 Jul 2026
Read more
What Is an NZBN Number?

What Is an NZBN Number?

If you’ve been setting up your business and you’ve come across the question “what is an NZBN number?”, you’re not alone. A lot of business owners also end up searching things like...

7 Jul 2026
Read more
Drafting Terms of Engagement for New Zealand Startups

Drafting Terms of Engagement for New Zealand Startups

Terms of engagement can make or break a new business relationship. Here is what New Zealand startups should know about setting them up properly, managing

7 Jul 2026
Read more
What Is A Statutory Director? Roles And Responsibilities In NZ Companies

What Is A Statutory Director? Roles And Responsibilities In NZ Companies

If you’re running a New Zealand company (or thinking about setting one up), you might hear the term “statutory director” sooner or later. It sounds technical, but the practical point is simple:...

7 Jul 2026
Read more
Need support?

Need help with your business legals?

Speak with Sprintlaw to get practical legal support and fixed-fee options tailored to your business.