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Colorado LLC name search

The endings, restricted words, reservation and filing fee for a Colorado LLC name, with the official search one click away.

How to search and claim an LLC name in Colorado

  1. Search Colorado's official entity records at no cost, leaving “LLC” off the name on the first pass and adding it on the second.
  2. Make sure the name ends with one of Colorado's accepted endings, such as “Limited Liability Company” or “Ltd. Liability Company”.
  3. Hold the name with a $25 reservation for 120 days if you need time before filing.
  4. File the Articles of Organization with the Colorado Secretary of State for $50.
  5. Note the recurring report so the LLC stays in good standing: $25 periodic report each year.

What a Colorado LLC name must include

Colorado accepts these endings for a limited liability company:

  • Limited Liability Company
  • Ltd. Liability Company
  • Limited Liability Co.
  • Ltd. Liability Co.
  • Limited
  • L.L.C.
  • LLC
  • Ltd.

Colorado accepts a wide set of LLC endings, including “Limited” and “Ltd.” on their own as well as shortened forms like “Ltd. Liability Co.” No restricted-word list for LLC names appears in the Secretary of State's name FAQ, and none turned up on another official page we checked.

How Colorado decides two names are the same

This is where Colorado stands apart. The ending and small words like “the” or “a” are part of the comparison, so an existing “ABC LLC” doesn't block “ABC Limited Liability Company” (C.R.S. § 7-90-601). What doesn't separate two names is punctuation or capitalization. Trade names are a separate matter: they need not be unique.

Where the rules are written. C.R.S. § 7-90-601.

Searching for an LLC name in Colorado

Use the free business database search, or the Name Availability Search, which answers the question directly. Neither covers trade names or trademarks, so a clear result tells you nothing about either of those. A business's entry in the database also has a summary page, which is where its Periodic Report month is shown.

Open the official Colorado entity search

Try the name with and without its ending, since Colorado can treat a different ending as a different name, then compare each result word by word.

Checked against 3,119,269 Colorado names. When Colorado is selected, the LLC name check also looks your name up in our copy of “Business Entities in Colorado”, published by the Colorado Department of State and last updated October 7, 2026. Matches come back in three lists: the same words, longer names that open with yours, and names starting with the same two words. Each shows the entity's type, status and number. The state's own search is still the final word, since its records move ahead of our copy.

Holding the name: Colorado LLC name reservation

Reserving holds an LLC name for 120 days for $25, and the hold can be extended by filing a Statement of Renewal of Reservation of Name. Colorado takes business filings electronically, so this is done online.

File a Colorado name reservation

Forming the LLC in Colorado

Articles of Organization create a Colorado LLC; the online filing costs $50. Like every Colorado business filing, it's made online through the Secretary of State's filing system, since the state takes business filings electronically.

File the Articles of Organization online

Once a year the LLC files a $25 Periodic Report (it was $10 until July 1, 2024). The filing window opens two months before the LLC's Periodic Report month, listed on its summary page, and closes two months after; filing late costs a $50 penalty. There's no franchise tax and no publication requirement, and a Certificate of Good Standing can be generated online at no charge.

When the LLC trades under another name

For a second name, file a Statement of Trade Name with the Secretary of State for $20; renewing costs $5 and withdrawing $10. Because trade names needn't be unique, another business can register the same one. Filing a trade name therefore doesn't reserve it for your LLC alone.

Sources

These are the official pages behind every fact above. If one of them now says something different, it's right and this page is out of date.

Common questions

Can two LLCs in Colorado have the same name?

No. Colorado accepts a new LLC name only if it can be told apart from every name on its record. In Colorado, though, the ending itself can make two names different.

How long can I hold an LLC name in Colorado?

120 days, for $25.

Does a new Colorado LLC have to publish a notice?

No. Colorado has no newspaper publication requirement for LLCs.

How much is the Colorado LLC filing fee?

$50, paid when you file the Articles of Organization.