ComplianceMarch 23, 2026

How to conduct a California business name availability search

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If you're planning to form a California LLC or corporation, (which is sometimes referred to as “registering your business”) you’ll need to file Articles of Organization to form the LLC or Articles of Incorporation to form the corporation, with the California Secretary of State.

Before you file those documents, you need to choose a name for the LLC or corporation. The name that’s on the LLC or corporation’s Articles is its “legal name”.  And before filing with the state, it's a good idea to check whether the legal business name you want is available. 

California has rules on what you can name your LLC or corporation 

Choosing a business name is one of the most important decisions for business owners. Your business name creates the first impression for customers, investors, partners, and potential employees. It can be frustrating to find the right name only to learn it is already taken when you try to register your business with the California Secretary of State.

As with other states, California has rules on what you can name an LLC or corporation.

An LLC’s name has to be distinguishable in the records of the California Secretary of State from other LLCs of record or reserved with the California Secretary of State and the name must not be likely to mislead the public. A corporation’s name has to be distinguishable in the records of the California Secretary of State from other corporations of record or reserved with the California Secretary of State and the name must not be likely to mislead the public.

A name is not considered distinguishable if it differs only by minor formatting or wording changes, such as:

  • Business entity identifiers: For example, “Elements Incorporated” vs. “Elements Corporation.”
  • Capitalization or formatting of letters or numbers: For example, “CyberCo” vs. “CYBERCO.”
  • Punctuation, symbols, spacing, or typography changes (as defined in Sections 21001(f) and 21001(g) of the California Code of Regulations, Title 2, Div. 7, Ch. 8.5). For example, “Best-Life Comfort, LLC” vs. “Best Life Comfort LLC.”

When determining name availability, the California Secretary of State checks names only against names of like entities registered with the California Secretary of State (e.g., a proposed corporation name is checked for availability only against other corporation names). 

A proposed name is considered likely to mislead the public if, for example, it falsely implies a government affiliation, or that the corporation or LLC is a professional entity, or is an insurer, or formed under a law other than the one under which it’s actually formed.

Violating these and other naming rules could result in your LLC’s Articles of Organization or corporation’s Articles of Incorporation being rejected by the California Secretary of State’s office.

California business name trademark search: avoid conflicts

When you’re picking a name for your California business you shouldn’t only worry about it being available under the rules of the California Secretary of State. Another potential issue is choosing a business name that's too similar to a competitor's name. If that happens, the competitor may claim that your name violates their legal rights through “trademark infringement" or "unfair competition". If a dispute arises and you are sued, you could be required to change your business name and potentially pay monetary damages. When you submit your Articles of Organization or Articles of Incorporation for filing, the California Secretary of State does not check the proposed name against trademark or service mark registrations. So, the fact that the Secretary of State lets you form your LLC or corporation under a certain name doesn’t necessarily mean there are no trademark issues.

(And speaking of trademarks, when starting a business, many people wonder about the importance of trademarking their business name. In fact, you don't have to trademark your name to operate under it.  Trademarks are words or symbols used to identify and distinguish a business’ products or services. (Think Nike’s “swoosh”.  When you see it, you immediately know whose product it is). A business name may or may not be used as trademark. If you use your business’ name in commerce is to identify its products or services then it might be considered a trademark. You can have trademark rights without registering the trademark with the US Patent and Trademark Office (USPTO) but registering a trademark gives you added protection against someone who might infringe on your trademark.)

How to find if a business name is taken

Checking name availability early can help you avoid these costly mistakes and keep your business launch on schedule.

There's no one place to check for conflicting business names for your California LLC or corporation. It’s best to use different search methods to make sure you cover all bases.

  1. Check the internet

Type a name you are considering into a search engine. This will help determine if anyone else is using a similar name for similar products or services.

You should also check if the website domain name you want is available. Just type the name into the search bar and hit enter.  You can also use the ICANN WHOIS Lookup tool for this. ICANN manages all domain names.

  1. Search the California records business entity database

Use the state’s online business entity portal (Bizfile) to search for California entity names. The database includes information on LLCs, corporations, and limited partnerships on file with the California Secretary of State.

Navigate to the Business Search page and ensure "Business" is selected at the top.

Screenshot of product

Scroll until you find the “Search by name” search box.

Screenshot of product

Enter the full name of your desired business name or a keyword. The keyword search will pull up names that contain the keyword in any part of the name.

You can search using your full business name (like "Paradise Painting") or a keyword (like "Paradise"). If you use a keyword, the search will show all business names that include that word anywhere in them.

Tip: For targeted results, click "Advanced" below the search bar. Then choose "starts with" to find names that begin with your keyword.

  1. Perform a trademark search

Trademark issues can arise if you use a business name that’s already legally protected by someone else. To help avoid this, search for registered trademarks using the United States Patent and Trademark Office (USPTO).

The USPTO has a free online trademark database where you can look for exact matches and similar names that might confuse customers.

You can also check if a trademark has been registered in California (if a trademark is not used in interstate commerce it can’t be registered on the federal level).  The California Secretary of State also maintains a trademark search tool on its website.

When searching, don’t just check your exact name. Try common misspellings and variations. Even if your name isn’t identical to someone else’s trademark, the owner may still challenge it if the names are close enough to cause confusion.

  1. Check with the country for DBA filings

Avoid choosing a business name that’s already being used by a local competitor, even if that business isn’t registered as an LLC or corporation.

A DBA (Doing Business As) name used by another local business can still lead to legal issues or customer confusion in your area.

In California, DBA names (which are called “fictitious names”) are filed at the county level, not with the state. The Secretary of State, when checking whether a proposed name is available, does not check it against fictitious names that have been registered with the county.

Before settling on a name, check with the County Clerk or Registrar-Recorder in the county where your business will operate to see if the name is already being used.

  1. Check social media handles

Check that your preferred social media handle is available on major platforms like Instagram, Facebook, TikTok, LinkedIn, X (Twitter), and Bluesky.

Also, look at business listing sites such as Yelp to make sure your name isn’t already being used by another local business.

Tips on selecting a business name for our California LLC or corporation

Before choosing a business name, make sure it follows California’s naming rules.

  • Include the right words: The name of your LLC or corporation must include words or abbreviations that identify the type of entity you are forming. For example, an LLC name must include “Limited Liability Company,” “LLC,” or “L.L.C.” However, an LLC name cannot include certain terms, such as “Bank,” “Trust,” “Trustee,” “Incorporated,” “Inc.,” “Corporation,” or “Corp.”
  • Check business name availability: Do a business entity search on the Secretary of State’s website to see if there is another corporation, LLC or other entity in the state’s records with the proposed name. Check additional sources too. This can help you avoid having your Articles of Organization or Articles of Incorporation rejected.
  • Reserve your business name with the state: Reserving a name with the California Secretary of State secures your rights to it and prevents another entity from forming or reserving an LLC or corporation using the same name before you’ve had a chance to file your Articles of Incorporation or Articles of Organization. In California, a business name reservation lasts for 60 days.

Even if the name meets California’s rule, you may also want to do a trademark search to make sure the name wouldn’t infringe on someone’s trademark rights.

For more information, see How to register a business name for your LLC.

Reserve your business name

BizFilings makes it easy to reserve your preferred business name with the state so it’s available when you’re ready. Learn more.

Related resources:

Can I use a business name that exists in another state?

State Name Reservation Service

Dave Griswold
Senior Customer Service Operations Associate
small business services

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