California Corporation Name Search and Naming Rules

California maintains a public database of every registered business entity, and your corporate name has to be distinguishable from all of them before the state will accept your Articles of Incorporation. Checking first saves you a rejected filing and a re-do.

Where to search

Use the California business search on the Secretary of State's bizfile site. Search your exact proposed name, then search close variations — different spacing, singular versus plural, with and without the entity ending. The point isn't just to confirm your exact name is free; it's to catch anything close enough that the state might consider it too similar.

How to read the results

If nothing similar appears, your name is likely available — though the Secretary of State makes the final call at filing. If you find an entity with a name close to yours, treat that as a warning: the state may reject your Articles as not distinguishable. Better to adjust now than to file, get rejected, and start over. Remember the search spans all entity types on record, not just corporations.

California requires your corporate name to be distinguishable in the records from names already registered or reserved. This is a legal standard, and it's stricter than casual intuition.

Differences that usually don't count

Small cosmetic differences typically won't make a name distinguishable on their own:

• Punctuation, spacing, or capitalization changes
• Adding or dropping filler words like "the," "and," or "a"
• The difference between an abbreviation and its spelled-out form
• The entity designator itself — "Inc." versus "Corporation" doesn't distinguish two otherwise identical names

Differences that generally do count

A genuinely different distinctive word, a materially different name, or a name that no reasonable person would confuse with the existing one is more likely to clear. When your name is close to an existing one, the safest move is to change a substantive word, not just tweak punctuation. If you have your heart set on a name that's borderline, an attorney can advise, but the practical rule is: make it clearly different.

Beyond distinguishability, California has content rules about what a corporate name can and can't say.

The core rules

• No misleading names. The name can't suggest the corporation is organized for a purpose it isn't authorized to pursue, and it can't imply a connection to a government agency that doesn't exist.
• Restricted words need approval. Words like "bank," "trust," "trustee," "insurance," "insurer," and terms implying certain licensed professions require approval from the relevant California regulator before you can use them. You can't just claim to be a bank in your name.
• Entity designators. A corporate ending such as "Incorporated," "Corporation," "Company," or an abbreviation is customary. A California general stock corporation isn't strictly required to include one, but many businesses use a designator for clarity and to signal the entity type — and certain uses of "Company" carry their own considerations.
• No deceptively similar names. Beyond the distinguishability test, a name that's likely to deceive the public can be a problem.

Practical naming advice

Pick a name you can actually use everywhere — one that's available as an entity name, clear of others' trademarks, and available as a domain and on the social handles you care about. A name that's legally available in California but already a strong trademark in your industry can still get you into a dispute. Checking broadly before you commit saves a painful rebrand later.

If you've found an available name but aren't ready to file your Articles yet, California lets you reserve it.

How reservation works

You can reserve an available corporate name with the Secretary of State for a set period, which holds it against other filers while you get your ducks in a row. A reservation is optional — if you're ready to incorporate now, you can just file, and the name is secured when the Articles are accepted. Reservation is most useful when there's a gap between settling on a name and being ready to file, and you're worried someone else might take it.

Reservation isn't formation

A reserved name is not a formed corporation. It doesn't create the entity, give you liability protection, or let you operate. It only holds the name. To actually have a corporation, you still file the Articles of Incorporation.

People conflate these four, and the distinctions matter when you're naming a corporation.

Legal name

Your corporation's legal name is the exact name on your Articles of Incorporation. It's what appears on state records, contracts, and tax filings. Getting it accepted by the Secretary of State is what this page is about.

DBA / fictitious business name

If you want to operate under a name different from your legal corporate name, you register a fictitious business name — a DBA. In California, this is done at the county level with the county clerk, not the state, and it usually carries a newspaper publication requirement. A DBA lets your corporation do business under another name without forming a new entity.

Trademark

State name availability is not the same as trademark rights. Another business could hold a trademark on a name similar to yours in your industry even if California lets you register the entity name. Trademark protection comes from use and from federal or state trademark registration, and it's what actually stops competitors from using a confusingly similar brand. Clearing your name against trademarks — ideally with a search — is a separate, important step.

Domain and handles

None of the above guarantees the matching website domain or social handles are free. Check those in parallel. The cleanest outcome is a name that's available as an entity, clear of trademark conflicts, and available as a domain and handle — so your legal name, brand, and web presence line up.

When you form your corporation with us, we check your proposed name against the California business search before filing, so you're not blindsided by a rejection for a name that's too close to an existing entity. If your first choice is taken or borderline, we flag it and help you land on one that will clear.

We handle the entity-name side with the Secretary of State. What we don't do is trademark clearance or legal opinions on naming disputes — a name that's available as a California entity can still conflict with someone's trademark, and that's a question for a trademark attorney. Our job is getting an available, compliant name onto your accepted Articles of Incorporation.