How do you go about naming a corporation in Ontario without running into legal trouble later? A corporate name is not just a brand choice. It is a legal identifier governed by specific federal and provincial rules.
This guide covers five practical tips for naming a new corporation and explains the three required elements of a valid name. It also shows you how to confirm your chosen name is available before you register it.
Key Takeaways
- A corporation in Ontario can be either named or numbered. Both options are valid, and you can switch from a numbered name to a named one later.
- A valid corporate name needs three elements: a distinctive element, a descriptive element, and a legal element (the suffix).
- The distinctive element is what sets your business apart. Coined or invented words tend to be more distinctive than common names or surnames.
- Before you register, you need a NUANS report to confirm your proposed name is not too similar to an existing one.
- Ontario restricts certain words and prohibits names that suggest a connection to the royal family.
This guide draws on more than ten years of experience advising incorporators and founders on corporate naming in Ontario.
Named or Numbered: Your First Decision
In Canada, business corporations fall under shared federal and provincial jurisdiction. This means an entrepreneur in Toronto has two incorporation routes to choose from.
You can incorporate:
- Federally, under the Canada Business Corporations Act (CBCA), or
- Provincially, under the Ontario Business Corporations Act (OBCA).
Each option has its own trade-offs, which we cover in a separate post comparing federal and provincial incorporation. Regardless of which route you choose, every corporation must identify itself with either a number or a name.
Tip 1: Decide Whether You Want a Named or Numbered Corporation
A numbered company is a corporation that has not adopted a corporate name. Instead, the corporate registry assigns a number followed by the appropriate legal designation, for example "1234567 Ontario Inc."
Numbered companies are common for holding companies and newly formed subsidiaries. They also suit founders who want to incorporate quickly and pick a brand name later. If you start as a numbered company, you can generally amend your articles to adopt a name afterward.
A named company uses a specific corporate name chosen by the incorporator, such as "Yellowbird Consulting Corp." That name must include three essential elements, which brings us to the next three tips.
The Three Required Elements of a Corporate Name
Every valid corporate name in Ontario needs three components working together:
- A distinctive part, such as "Yellowbird"
- A descriptive part, such as "Consulting"
- A corporate suffix, such as "Corp."
In this example, "Yellowbird" is the brand-building distinctive element. "Consulting" describes the nature of the business. "Corp." is the legal suffix that signals corporate status. Let's look at each in more detail.
Tip 2: Give Your Corporate Name a Distinctive Element
The distinctive element identifies your business through a unique word or set of words. Distinctiveness exists on a spectrum.
A coined or invented word, like "Yellowbird," tends to be highly distinctive. A common surname or place name tends to be less distinctive on its own.
Consider "Yellowbird Consulting Corp." as an example. The word "Yellowbird" is reasonably distinctive, though not maximally so. A word like "Goldenbirds" would push further toward the highly distinctive end of the spectrum. At the same time, "Yellowbird" is still more distinctive than a generic word like "Yellow" used alone.
Distinctiveness matters for two reasons. First, it affects whether your name passes the uniqueness requirement discussed below. Second, the words you choose here will anchor the brand identity your corporation builds over time.
Tip 3: Give Your Corporate Name a Descriptive Element
The descriptive element indicates the corporation's main activity or type of business.
Returning to the example, "Consulting" is the descriptive element in "Yellowbird Consulting Corp." Alternative descriptive words could include "Advising" or "Counselling," depending on the exact nature of the business.
This element does not need to be highly creative. Its job is functional: to give anyone reading the name a general sense of what the business does.
Tip 4: Choose the Correct Legal Element (Corporate Suffix)
Every corporate name must end with a legal element, also called a corporate suffix. Since corporate names in Canada can appear in English or French, there are two sets of approved suffixes.
English suffixes: Limited, Ltd., Incorporated, Inc., Corporation, Corp.
French suffixes: Limitée, Ltée, Incorporée, Inc., Corporation, Corp.
That gives incorporators 12 total legal identifiers to choose from. Once you register a specific suffix, that exact suffix becomes part of your legal name going forward.
For example, say your corporation is registered as "Yellowbird Consulting Corp." It would be incorrect to later call it "Yellowbird Consulting Incorporated." It would also be incorrect to call it "Yellowbird Consulting Corporation." Only the registered suffix is correct.
Tip 5: Confirm Your Corporate Name Is Unique
Once you have combined all three elements, you still need to confirm your name is unique.
This is done through a name search report, commonly known as a NUANS report. NUANS is a commercial database that compares your proposed name against existing registered corporate names across Canada.
The report searches your proposed name and returns the most similar existing names on file. A close match does not automatically disqualify your name. What matters is whether the names are similar enough to cause confusion.
For example, suppose you propose "Yellowbird Consulting Corp." The database already contains "Yellowbird Dynamics Incorporated." In most cases, these two names are different enough, since the descriptive elements differ.
Now suppose the database instead contains "Yellowbird Consulting Corporation." This name is too close to your proposed "Yellowbird Consulting Corp." Only the suffix differs, and that is not enough separation. In this case, your proposed name would likely be rejected as not sufficiently unique.
Other Rules for Naming a Corporation in Ontario
A few additional rules apply beyond the three required elements and the uniqueness requirement.
- Corporate names cannot be obscene or contain prohibited language.
- A corporate name may be registered in either French or English, or both.
- A corporate name cannot imply a connection to the royal family or to government bodies without proper authorization.
These rules exist to prevent confusion, protect the public, and maintain the integrity of the corporate registry.
A Registered Corporate Name Is Not the Same as a Trademark
Many first-time entrepreneurs assume that registering a corporate name also protects that name as a brand. This is a common misconception.
A corporate name registration confirms that your name is available within the corporate registry system. It does not grant you exclusive rights to use that name as a trademark in commerce.
Trademark protection is a separate legal process, governed by different legislation and a different federal registry. If your brand name is central to your business, you may want trademark registration too.
A competitor could theoretically hold a trademark similar to your corporate name, even if your NUANS report came back clear. Reviewing both corporate name and trademark availability before you launch can help you avoid a costly rebrand later.
The Bottom Line
A valid corporate name needs three parts: a distinctive element, a descriptive element, and a legal element. It also needs to be genuinely unique when checked against the existing registry.
Getting this right at the outset saves time and legal fees later. A rejected name search delays your incorporation timeline. A name too close to an existing brand can also create disputes down the road.
If you are preparing to incorporate a new business in Ontario, our team at Levine Law can help. We can guide you in choosing a compliant, defensible corporate name and support you through the full incorporation process.
Frequently Asked Questions
What is the difference between a named and a numbered corporation in Ontario?
A named corporation uses a specific name chosen by the incorporator. A numbered corporation is identified only by a number and legal designation from the registry.
Can I change a numbered corporation to a named corporation later
Yes. You can generally amend your articles of incorporation to adopt a corporate name after incorporating as a numbered company.
What are the three required elements of a corporate name?
Every corporate name needs a distinctive element, a descriptive element, and a legal suffix, such as "Yellowbird Consulting Corp."
What is a NUANS report and why do I need one?
A NUANS report is a name search that compares your proposed corporate name against existing registered names in Canada. It confirms your name is unique enough to register.
Can a corporate name be in French?
Yes. A corporate name in Ontario may be registered in French, English, or both, using the corresponding set of approved legal suffixes.
Can I use any suffix I want, like Inc. one day and Corp. the next?
No. Once a specific suffix is registered as part of your corporate name, only that suffix is correct going forward.
What happens if my proposed name is too similar to an existing one?
Your name search report will flag the conflict. You will generally need to choose a different distinctive or descriptive element before you register.
Are there words I am not allowed to use in a corporate name?
Yes. Ontario prohibits obscene language and names that falsely imply a connection to the royal family or government bodies.
Does registering a corporate name also protect it as a trademark?
No. A corporate name registration and a trademark registration are separate legal processes. You may need both to fully protect your brand.