How to Name Your LLC in California

To name your LLC in California, your name must be distinguishable from existing entities on file with the California Secretary of State, end with "LLC" or "Limited Liability Company," and avoid restricted words. Search the CA SOS business entity database before you file to confirm availability.

California LLC names must follow 2 categories of rules: general rules that apply to every LLC in the country, and California-specific rules set by the California Corporations Code.

The general rules are straightforward. Your name must be distinguishable from every other registered entity on file with the California Secretary of State. It can't be the same as — or deceptively similar to — an existing domestic or foreign corporation, LLC, or other registered entity. Punctuation, articles, and abbreviations don't count toward distinguishability, so "The Acme Group LLC" and "Acme Group LLC" would be treated as the same name.

The California-specific rule that catches people off guard: your LLC name must end with "Limited Liability Company," "LLC," or "L.L.C." — required by California Corporations Code Section 17701.08. Your name also can't include words that imply it's a corporation, like "Inc.," "Corp.," or "Incorporated."

Before you file anything, search the California Secretary of State's business entity database to check whether your name is available. The CA SOS maintains a public search tool — BizFile Online — where you can look up existing entity names by keyword.

Search your exact proposed name first, then search variations. Because punctuation and articles don't affect distinguishability, run searches with and without "The," "&," and common abbreviations. If a close match comes up, the CA SOS may reject your filing — and you'll have to start over.

A clear search result here doesn't guarantee approval — the CA SOS makes the final call when you file. But running the search first is the fastest way to catch a conflict before it delays your formation.

Some words require additional approval or are prohibited outright in California LLC names. Words that imply a regulated profession — things like "bank," "trust," "insurance," or "engineer" — may require a letter of approval from the relevant state agency before the CA SOS will accept your filing.

Words that suggest a government affiliation — things like "FBI," "Treasury," or "Secret Service" — are also off limits. The CA SOS publishes a list of restricted words as part of its name reservation guidance. Check that list before you settle on a name, especially if your business name touches a licensed or regulated industry.

If you've found a name you want but aren't ready to file your Articles of Organization yet, the California Secretary of State lets you reserve it. A name reservation holds the name for 60 days while you get ready to file.

You can file a name reservation request through BizFile Online or by mailing a Name Reservation Request form to the CA SOS. There's a state fee for the reservation. If you're ready to file your LLC formation paperwork now, you don't need to reserve the name separately — you can go straight to filing your Articles of Organization.

Yes, your California LLC can do business under a name that's different from its official registered name. This is called a fictitious business name — commonly referred to as a DBA ("doing business as"). It lets you run multiple brands or product lines under one LLC without forming separate entities.

In California, you register a fictitious business name with the county clerk in the county where your principal place of business is located — not with the CA SOS. After registering, you're required to publish a notice of the fictitious business name in a local newspaper of general circulation for 4 consecutive weeks. The DBA registration is valid for 5 years and must be renewed.

A DBA doesn't create a separate legal entity. It's a name your LLC operates under, not a new business. Your LLC's legal name and liability structure stay the same.

A CA SOS name search only checks whether your name conflicts with other registered California entities. It doesn't check federal trademarks. A name can be available in the CA SOS database and still infringe on a federally registered trademark — which is a separate and more serious problem.

Before you finalize your LLC name, search the USPTO's Trademark Electronic Search System (TESS) at the U.S. Patent and Trademark Office website. If someone holds a federal trademark on a name that's the same as or confusingly similar to yours, using it can put your business on the hook for trademark infringement — even if the CA SOS approved your filing.

If your name is clear, consider filing for a federal trademark to protect it. A trademark attorney can help you figure out whether your name is registrable and what protection level makes sense for your business.

Once you've confirmed your name is available, you lock it in by filing your Articles of Organization — Form LLC-1 — with the California Secretary of State. The name you enter on Form LLC-1 becomes your LLC's official legal name the moment the CA SOS approves and files it.

Double-check the spelling and punctuation on your Articles of Organization before you file. A typo in your LLC name on Form LLC-1 means filing a Certificate of Amendment later — which costs time and an additional state fee. Getting it right the first time is worth the extra few minutes.