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Colorado Secretary of State Business Search and Naming Your LLC

Whether you’re searching for the right Colorado business name or registering your LLC with the CO Secretary of State, we can help. We’ve got all the information you need on a Colorado business entity search, LLC naming rules, fictitious names and registering your business.

Colorado Entity Search and LLC Lookup

You need to check whether there’s already another Colorado LLC registered with your desired business name. That means searching the Colorado Secretary of State website using their business search tool. You can easily look up CO LLCs and corporations by name and other details. Using the tool is easy. If the business name is already used, that means it’s not available and you won’t be able to register it; try searching for a different business name instead.

Colorado Secretary of State Business Name Search Tool

Colorado Secretary of State Rules for Naming Your LLC

Once you’ve decided on a name for your LLC and checked business name availability, you’ll need to meet Colorado Secretary of State naming rules. These do vary from state to state — we’ve got general naming rules below, as well as naming rules specific to LLC businesses formed in CO.

General Business Naming Rules

These rules typically apply to all LLCs, no matter what state they are formed in. You will need to pay attention to these rules, as they will influence the name you choose for your Colorado LLC.

Colorado Trade Names/DBA Names

You might choose to do business under a different name from your legal LLC name. In Colorado, doing business under a different name is known as your “trade name” or “doing business as name” (DBA). You might choose to use a different name from your formal LLC name for a variety of reasons.

For example, your LLC might be called Colorado Renewable Resources Holding Company LLC, and you have a chain called Boulder Solar. You should file a Trade Name to let the Colorado Secretary of State know. In Colorado, you do that through a Statement of Trade Name, or you can have Incfile do it on your behalf through our Assumed Business Name service.

Incfile's Assumed Business Name Service

Registering a Business Name in Colorado

Once you’ve searched for your Colorado business name, checked availability, followed the naming rules and decided whether you need a fictitious name, you can register your CO LLC name. There are a couple of ways to do this.

  • 1

    If you don’t want to form your Colorado LLC right now, you can reserve the business name with the Colorado Secretary of State. You will need to complete the Statement of Reservation of Name form and file it with the CO SOS. You do not need to reserve a name if you are forming your business right away.

    Instructions for Colorado SOS LLC Name Reservation

  • 2

    If you’re ready to start your Colorado LLC, you can formally file your Articles of Organization with the Colorado SOS, or let Incfile take care of it for you.

FAQs on Naming Your Colorado LLC

You might find the following answers useful.

Useful Resources for Naming Your Colorado LLC

You might find these resources helpful.

Trademarks and Service Marks

You must be careful that your Colorado LLC name does not infringe on the trademark or service mark of another business. The easiest way to make sure your proposed business name does not infringe is to carry out a trademark search through Incfile. If it doesn’t infringe, you can even register it as a trademark yourself.

Incfile Trademark Search and Registration Service

Find the Perfect Name for Your Colorado LLC

The perfect business name can be elusive. We have a complete guide to choosing the right business name, but basically, you'll want to choose a name that will:

  • Appeal to your customers
  • Be memorable enough to stand out
  • Best represent your product or services
  • Not be used by another business
Incfile Guide to Choosing a Business Name

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State fee


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Filing Time and Price

The state charges this amount to file a new business entity. This fee goes directly to the Secretary of State.

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Compliance Requirements

This report is mandatory and must be filed within the specified time frame in order for the entity to remain in good standing with the state. Failure to file this report can lead to the company being revoked or administratively dissolved.

Other State Requirements

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