How do you go about naming a corporation in Ontario without running into problems 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, the three elements of a valid name, and how to confirm your name is available before you register it. It also explains how a corporate name differs from a business name and a trademark.
Key Takeaways
- A corporation in Ontario can be either named or numbered, and a numbered company can adopt a name later.
- A corporate name generally needs three elements: a distinctive element, a descriptive element, and a legal element (the suffix).
- Coined or invented words tend to be more distinctive than common words, surnames, or place names.
- A named corporation generally needs a NUANS name search report to confirm the name is not confusingly similar to existing names.
- Once you register a suffix, such as "Inc." or "Corp.," that exact suffix is part of your legal name.
- Operating under a name other than the corporate name generally requires registering a business name.
- Registering a corporate name does not give you trademark rights in that name.
This guide draws on more than ten years of experience advising incorporators and founders on corporate naming in Ontario.
Federal or Provincial, Named or Numbered: Your First Decisions
Business corporations in Canada can be incorporated under federal or provincial law. An entrepreneur in Ontario can incorporate:
- federally, under the Canada Business Corporations Act (CBCA), or
- provincially, under Ontario's Business Corporations Act (OBCA).
Each route has its own trade-offs, including how widely the name is protected. Our article on what a certificate of incorporation is explains how the Ontario and federal processes differ. Whichever route you choose, every corporation is identified either by a number or by a name.
Tip 1: Decide Whether You Want a Named or Numbered Corporation
A numbered company is a corporation that has not adopted a name. Instead, the registry assigns it a number followed by a legal designation, such as "1234567 Ontario Inc."
Numbered companies are common for holding companies and newly formed subsidiaries. They also suit founders who want to incorporate quickly and choose a brand name later. A numbered company does not need a name search, and it can generally amend its articles to adopt a name afterward.
A named company uses a specific name chosen by the incorporator, such as "Yellowbird Consulting Corp." That name needs three elements, which the next three tips cover.
The Three Required Elements for Naming a Corporation in Ontario
A corporate name generally has three components working together:
- a distinctive element, such as "Yellowbird"
- a descriptive element, such as "Consulting"
- a legal element, or suffix, such as "Corp."
In this example, "Yellowbird" is the brand-building element, "Consulting" describes the business, and "Corp." signals that the business is a corporation.
Tip 2: Give Your Corporate Name a Distinctive Element
The distinctive element identifies your business through a unique word or combination of words. Distinctiveness exists on a spectrum.
A coined or invented word tends to be highly distinctive. A common word, surname, or place name used on its own tends to be much less distinctive. "Yellowbird" is reasonably distinctive. An invented word would be more distinctive, while a generic word like "Yellow" on its own would be less so.
Distinctiveness matters for two reasons. It affects whether your name passes the uniqueness check described below, and the words you choose will anchor your brand for years.
Tip 3: Give Your Corporate Name a Descriptive Element
The descriptive element indicates the corporation's main activity or type of business.
In "Yellowbird Consulting Corp.," the descriptive element is "Consulting." Alternatives could include "Advisory" or "Management," depending on what the business does.
This element does not need to be 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 include a legal element, also called a corporate suffix. Because names can be in English or French, there are English and French options.
English suffixes: Limited, Ltd., Incorporated, Inc., Corporation, Corp.
French suffixes: Limitée, Ltée, Incorporée, Inc., Corporation, Corp.
Because "Inc.," "Corporation," and "Corp." appear in both lists, there are nine distinct options to choose from.
Once you register a suffix, that exact suffix is part of your legal name. If your corporation is registered as "Yellowbird Consulting Corp.," it is incorrect to call it "Yellowbird Consulting Incorporated" or "Yellowbird Consulting Corporation" in contracts, invoices, or filings.
Tip 5: Confirm Your Corporate Name Is Unique With a NUANS Report
Once you have combined all three elements, you need to confirm the name is available.
This is done with a name search report, commonly called a NUANS report. NUANS compares your proposed name against existing corporate names and trademarks in Canada and lists the most similar results. An Ontario corporation generally needs an Ontario-biased NUANS report, and the report is only valid for a limited period, so it should be ordered close to the filing date.
A similar name in the results does not automatically mean rejection. What matters is whether the names are similar enough to cause confusion.
For example, if you propose "Yellowbird Consulting Corp." and the search shows "Yellowbird Dynamics Incorporated," the different descriptive elements may be enough to tell them apart. But if the search shows "Yellowbird Consulting Corporation," your name would likely be rejected, because only the suffix differs.
Other Rules for Naming a Corporation in Ontario
A few other rules apply beyond the three elements and the uniqueness check:
- A corporate name cannot be obscene or contain prohibited words.
- A name cannot suggest a connection to the royal family or to government bodies without proper authorization.
- Certain words, such as those suggesting a regulated profession or financial institution, may require consent or be restricted.
- A name can be registered in English, French, or both.
These rules exist to prevent confusion, protect the public, and keep the corporate registry reliable.
Operating Under a Different Name: Registering a Business Name
Many corporations operate under a brand that is different from their legal corporate name. A numbered company might trade as "Yellowbird Coffee," or "Yellowbird Consulting Corp." might launch a product line under another name.
In Ontario, a corporation that carries on business under a name other than its corporate name generally needs to register that business name. The corporation's legal name should still appear on contracts and invoices, so customers and suppliers know which legal entity they are dealing with.
A Registered Corporate Name Is Not the Same as a Trademark
Many first-time founders assume that registering a corporate name protects it as a brand. That is a common misconception.
A corporate name registration confirms the name is available within the corporate registry system. It does not give you exclusive rights to use the name as a trademark.
Trademark protection is a separate process under federal trademark law, with its own registry. A competitor could hold a trademark similar to your corporate name even if your NUANS report came back clear. If your brand is central to your business, it is worth checking trademark availability, and considering registration, before you launch. If a designer created your logo, our article on who owns the IP when you use a contractor explains why you also need a written assignment of the artwork.
When to Involve a Lawyer
The best time to involve a lawyer is before you order a NUANS report and file your articles, so the name, the incorporation route, and any trademark issues are considered together.
It is also worth getting advice if your name search shows similar names, if you plan to operate under a different brand, or if you want to protect your name as a trademark.
The Bottom Line on Naming a Corporation in Ontario
A valid corporate name generally needs a distinctive element, a descriptive element, and a legal suffix, and it must be distinct enough from existing names to pass a NUANS search. Alternatively, you can incorporate as a numbered company and adopt a name later.
Getting the name right at the start saves time and cost. A rejected name delays incorporation, and a name too close to an existing brand can lead to disputes. A registered corporate name also does not protect your brand on its own.
If you are preparing to incorporate a new business in Ontario, our team at Levine Law can help. We can help you choose a compliant, defensible corporate name and guide 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 name chosen by the incorporator, such as "Yellowbird Consulting Corp." A numbered corporation is identified by a number assigned by the registry, followed by a legal designation, such as "1234567 Ontario Inc." A numbered company does not need a name search, which can make incorporation faster. It can generally adopt a name later by amending its articles.
What are the three elements of a corporate name?
A corporate name generally has a distinctive element, a descriptive element, and a legal suffix. In "Yellowbird Consulting Corp.," "Yellowbird" is distinctive, "Consulting" is descriptive, and "Corp." is the legal suffix. The distinctive element does most of the work in setting your name apart, and coined or invented words tend to be the most distinctive.
What is a NUANS report, and do I need one?
A NUANS report is a name search that compares your proposed name against existing corporate names and trademarks in Canada. A named Ontario corporation generally needs an Ontario-biased NUANS report to incorporate, and the report is only valid for a limited time. A numbered company does not need one. Our article on what a certificate of incorporation is explains where the report fits in.
Can I change a numbered corporation to a named corporation later?
Yes. A numbered company can generally adopt a name later by filing articles of amendment, which will usually require a NUANS report for the new name. Alternatively, it can keep its number as its legal name and register a business name to operate under a brand. Either way, its legal name should still appear on contracts and invoices.
Does registering a corporate name protect it as a trademark?
No. A corporate name registration only confirms the name is available in the corporate registry. It does not give exclusive rights to use the name as a brand. Trademark protection is a separate process under federal law. If your brand is important, check trademark availability and consider registering it, and make sure you own the rights to any logo, as explained in our article on IP ownership with contractors.