How to Look Up an LLC in Colorado? (The MOST Effective Way)

Jon Morgan
Published by Jon Morgan | Co-Founder & Chief Editor
Last updated: June 20, 2024
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If you're looking for information on how to search for a business name in Colorado, you've come to the right place. I have over a decade of experience in helping clients with everything LLC-related in Colorado, and an extensive background as a business consultant.

I'll use my experience to walk you through the process of searching for limited liability companies using the Colorado Secretary of State website.

I'll provide tips and advice along the way so that you can find what you're looking for as quickly and easily as possible.

Quick Summary

  • To look up an LLC in Colorado, utilize the Colorado Secretary of State's website, which offers a comprehensive business entity search tool.
  • Alternative methods for LLC searches include calling the state's office directly or sending an email for more detailed inquiries.
  • In Colorado, 99.5% of all businesses are small businesses, totaling 653,639 entities, highlighting the state's vibrant entrepreneurial ecosystem.
  • In my opinion, combining online searches with direct communication (phone or email) offers the most thorough understanding of LLC details in Colorado.

How Do I Look up an LLC in Colorado?

A man looking up an LLC in Colorado

To search for an LLC in Colorado, you can use several resources.

When I first needed to search for an LLC in Colorado, I found the Colorado Secretary of State's website to be an invaluable resource. Navigating through their database felt daunting at first, but it quickly became my go-to for reliable information on local businesses.

This is particularly relevant considering the vibrant business growth in Colorado, where, according to the US Small Business Administration, 32,069 new establishments opened between March 2021 and March 2022 [1].

1. Use the Colorado Secretary of State Search Tool

To look up a business name in Colorado, you'll need to start by visiting the Secretary of State search tool.

From there, you can use the Business Entity Search tool to find information (such as the document number) on any registered business in the state.

Here's how to perform an LLC search using the Colorado Secretary of State search tool

a. Name Search

If you know the name of the LLC you're looking up, you can use it to perform the search:

  • Step 1: Visit the Colorado Secretary of State's website.
  • Step 2: Navigate to the Business section and select the 'Search Business Database' option.
  • Step 3: Enter the name of the LLC you're searching for in the search bar.
  • Step 4: Review the search results to find the LLC. You can click on the entity name for more detailed information.

b. Entity Number

You can also look for an LLC in Colorado by using its entity number:

  • Step 1: If you know the entity number of the LLC, you can enter it directly into the search bar on the Business Database Search page.
  • Step 2: The entity number will take you directly to the LLC's detailed information page.

c. Executive Name

Finally, you can search the Colorado Secretary of State's search tool by entering the executive name:

  • Step 1: If you're looking for LLCs associated with a specific executive, you can use the 'Advanced Search' option.
  • Step 2: Enter the executive's name in the appropriate field to find LLCs connected to that individual.

2. Call the State

There was a moment when online resources just weren't enough for my specific query. Picking up the phone and calling the Colorado Secretary of State's office not only cleared my confusion but also provided me with insights I hadn't considered.

The person on the line was more than willing to walk me through the details, making the experience surprisingly pleasant.

The number for business inquiries is 303-894-2200, and the working hours are 8:00 AM - 5:00 PM, Monday to Friday.

3. Send an Email

A few times when I had a complex question, I emailed the Colorado Secretary of State's office. The response I received was not only prompt but also thorough, providing me with clarity and written confirmation of the information I needed.

"You can also look up an LLC by calling the State's office or emailing them."

- Delina Yasmeh, J.D./Tax LL.M, Distinguished Expert in Mergers & Acquisitions

The appropriate email address for business entity inquiries is Make sure to include details about your search query in your email to receive the most accurate information.

4. Other Business Entity Search Alternatives

You can also use these options for a more comprehensive search:

  • Company Naming Services: Use online platforms that assess the availability and potential for registering business names.
  • Trademark Searches: Verify that the business name is not already trademarked at the state level in Illinois or on a national scale.
  • Social Media Platforms: Investigate active companies and evaluate their online presence and engagement with the public.
  • Search Engines: Conduct broad searches to uncover information on business operations, media coverage, and accessible public records.
  • Domain Name Searches: Check if the preferred business name is open for registration as an internet domain, ensuring online brand consistency.

Now that you know how to look up an LLC in Colorado, let's answer some of the most common questions about businesses in the state.

Related Articles:

How to Check If A Business Name Is Trademarked in Colorado

A business man thinking in front of a laptop

Here’s how you can conduct a trademark search both federally and within a specific state.

Federal Trademark Check (Through the USPTO)

The United States Patent and Trademark Office (USPTO) offers a comprehensive database for checking if a business name or logo is federally trademarked [2].

Here's how to use it:

  1. Visit the USPTO Website: Go to the official USPTO website and navigate to the trademarks section.
  2. Use the Trademark Electronic Search System (TESS): TESS allows you to search the USPTO's database of registered trademarks and prior pending applications to find marks that could prevent registration due to a likelihood of confusion.
  3. Conduct Your Search: You can search by the name, owner, serial number, or registration number. For a business name, start with a basic word mark search to see if your desired name is already taken.
  4. Analyze the Results: Review the search results for any trademarks that are identical or similar to your proposed business name. Pay attention to the goods and services listed under each trademark to assess the likelihood of confusion.

State Trademark Check (SOT Website)

Each state has its own process for trademark registration, separate from the federal system. Here’s how to check for trademarks within a specific state:

  1. Visit the State's Secretary of State (SOS) Website: Find the official website of the state’s Secretary of State. The process may vary by state, so look for a section dedicated to business or trademark searches.
  2. Access the State Trademark Database: Many states offer an online search tool for state-registered trademarks. If available, use this tool to search for your desired business name.
  3. Conduct Your Search: Enter the business name you’re interested in to see if there are any state-level trademarks. You may also want to search for variations of the name.
  4. Review the Results: Similar to the federal search, review any trademarks that could conflict with your business name based on the goods and services they are associated with.

Here are all the reasons individuals should perform an LLC search:

  • Avoid Legal Issues: Ensures your chosen business name or logo doesn't infringe on existing trademarks, preventing potential legal conflicts and costly litigation.
  • Unique Brand Identity: Helps establish a unique identity for your business by ensuring your name or logo is not already in use, which is crucial for branding and marketing.
  • Ease of Registration: Identifies potential barriers to registering your business name or trademark, making the registration process smoother and more predictable.
  • Market Research: Provides insights into your industry by revealing existing businesses and trademarks, which can inform your marketing strategy and competitive positioning.
  • Prevent Rebranding: Avoids the time, expense, and potential loss of customer trust associated with having to rebrand if your chosen name infringes on another's trademark.
  • Access to Domain Names: Helps determine the availability of related domain names for your online presence, ensuring consistency across your brand.
  • Investor Confidence: Demonstrates due diligence to potential investors or partners by showing that you’ve taken steps to legally protect your brand and avoid infringement issues.
  • Global Expansion Readiness: If you plan to expand internationally, checking for trademarks can prevent future conflicts in global markets, where different trademark laws may apply.
  • Enhanced Consumer Trust: Establishes a legally secure brand that consumers can trust, knowing it's distinct and protected against potential imitators.
  • Strategic Planning: Assists in long-term business planning by ensuring your brand can be legally protected, avoiding obstacles to future growth and expansion.


What Is the Purpose of an LLC?

The purpose of an LLC is to provide limited liability protection to its members. This means that the members' personal assets are protected in the event that the LLC is sued.



About The Author

Co-Founder & Chief Editor
Jon Morgan, MBA, LLM, has over ten years of experience growing startups and currently serves as CEO and Editor-in-Chief of Venture Smarter. Educated at UC Davis and Harvard, he offers deeply informed guidance. Beyond work, he enjoys spending time with family, his poodle Sophie, and learning Spanish.
Learn more about our editorial policy
Growth & Transition Advisor
LJ Viveros has 40 years of experience in founding and scaling businesses, including a significant sale to Logitech. He has led Market Solutions LLC since 1999, focusing on strategic transitions for global brands. A graduate of Saint Mary’s College in Communications, LJ is also a distinguished Matsushita Executive alumnus.
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