A business name checker is a tool or service that verifies the availability of a specific name for a company or business entity to ensure it is not already in use by another business in a given jurisdiction.

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Last Updated: January 30, 2026

By definition, a business name checker is a tool that allows entrepreneurs to search businesses registered in their state to see if the name they want to use is taken. States require the business owner to register a limited liability company, limited liability partnership, or corporation with the Secretary of State or a similar state office.
States use different variations of the same concept. Other possible names are:
Whatever the name, these state tools and name checkers offered by private companies provide the same service. In some states, business owners can call and check over the phone.
Before ordering a sign for the storefront, business owners would be wise to check a few other places to help ensure that the business name is a go.
Some companies register one name with the state but then opt to “do business as” (DBA) another name. While a few states offer DBA name registration at the state level, most require the company to register in the county or city where the business is located. So even if no other company registered with the name, it’s wise to check with the appropriate local office to make sure no one is doing business using the company’s proposed name.
A business can trademark a name other than its official business name. Trademarks can be federally registered with the United States Patent and Trademark Office or obtained at the state level. It’s wise to check both to be thorough.
A company that registers as Debbie’s Doughnuts, Inc. might choose “DebbieDonuts.com” as its domain name. This is the name of its website. If the business is Debbie’s Donuts, it might confuse customers when they type that into a search bar and get Debbie’s Doughnuts, Inc., instead. Worse, they might not notice, and then the business loses a customer. It’s possible to avoid these problems by carefully considering and researching domain names.
Many social media platforms allow businesses to sign up using any name they want. For this reason, it’s advisable to do a quick internet search to see if anyone else is using the company name online.
Researching a business name ahead of time to make sure it’s available can save an entrepreneur both time and money. And one of the biggest advantages of a business name checker is that it’s online and easy to use.
There really are no downsides to running a name check before starting a business — unless an entrepreneur uses a private company that doesn’t keep its records updated. It can be wiser to rely on a trusted source like ZenBusiness to guide the search.
Using a business name checker before registering a business with the state helps ensure that the name is available. Doing this and a few other searches before taking other steps saves entrepreneurs the cost and hassle of changing their signage, letterhead, and so forth if the name is taken.
ZenBusiness exists to help small business owners at every stage of the game. Their Corporate and LLC Formation services can help entrepreneurs start a company quickly and easily. After the company is up and running, services like ZenBusiness Money Pro and Worry-Free Compliance Service make it simple to keep the company on track with good legal compliance and sound financial awareness.
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Disclaimer: The content on this page is for information purposes only and does not constitute legal, tax, or accounting advice. For specific questions about any of these topics, seek the counsel of a licensed professional.
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