How to search LLC names

Why the name search matters

Filing a rejected LLC name is the most common reason formations get bounced back.

Every state requires LLC names to be “distinguishable” from any other entity already registered there. That means if another Illinois LLC is called “Blue Mountain Coffee LLC,” you can’t file “Blue Mountain Coffee Co., LLC” in Illinois — the two look too similar. States use slightly different rules for what counts as distinguishable, but the core logic is the same: two businesses can’t share a name that would confuse customers or creditors.

Doing a 60-second name search before you file saves you from getting a rejection notice, a reject fee, and a sheepish email to your lawyer or business partner about starting over.

How to search your state’s database

The process is almost identical in every state.

1. Open your state’s Secretary of State (or equivalent) website. Links for all 50 states are in the table below.
2. Find the “Business Search” or “Entity Search” link. It’s usually right on the homepage. A few states bury it under “Online Services.”
3. Search the core words of your name, not the exact string. Searching “Blue Mountain Coffee” will surface “Blue Mountain Coffee LLC,” “Blue Mountain Coffee Roasters Inc.,” and any close variants.
4. Check active and inactive filings. Some states default to only active entities — toggle the filter to see everything. A dissolved LLC’s name can sometimes be reused, but only after its protection period expires.
5. Note any “reserved” names. Anyone can reserve a name for 60–120 days in most states for a small fee ($10–$50). Those show up as reserved-not-yet-filed.

Common naming rules across states

These rules are roughly universal. Pick a name that follows all of them and you’ll be fine in any state.

• Must include an LLC designator. “LLC,” “L.L.C.,” “Limited Liability Company,” or a state-approved variant must appear at the end of the name.
• Must be distinguishable from existing entities. Punctuation, articles (“the,” “a”), and business designators (“Inc,” “LLC”) don’t make a name distinguishable.
• Can’t imply a government agency. Names like “FBI Consulting” or “Treasury Ventures” get rejected.
• Can’t imply a regulated profession without proof. “Bank,” “Trust,” “Insurance,” “University,” “Engineering”, and a few others need professional licenses on file.
• Can’t be misleading about the business type. You can’t call it “ABC Corporation” if it’s an LLC.

Reserving a name before you file

If you’ve picked a name but aren’t quite ready to file — common when you’re still setting up partners, financing, or branding — most states let you reserve the name for 60–120 days. Reservation fees are typically $10–$50. During the reservation window, nobody else can register it. You don’t strictly need to reserve before you file, but it’s a cheap hedge if you’re worried someone might grab it.

What to do when your name is taken

You have a few options. First, try a small variation — “LLC” vs “Co., LLC,” adding a geographic qualifier (“Austin Blue Mountain Coffee LLC”), or reshuffling the word order. Second, check whether the conflicting entity is dissolved; sometimes you can reclaim the name after the state’s hold period. Finally, consider whether the name conflicts only in one state — a lot of small businesses just form in their home state and accept that the national trademark landscape is a separate beast, handled through the USPTO.

Every state’s name search

Direct links to all 50 Secretary of State databases, plus our naming-rules walkthrough for each state.

A quick word on trademarks

Clearing your state LLC name isn’t the same as clearing a trademark.

Your state’s database only checks whether another entity in that state is using the name. It doesn’t check federal trademarks, other states’ databases, or any of the actual consumer-facing marks businesses use. If you’re building a brand people will recognize, it’s worth running a quick search at tmsearch.uspto.gov too. Trademark law is a genuinely different thing from LLC naming, and we’d point you to a trademark attorney before making any serious claim to a brand.

Keep reading

Other guides you'll probably want next.