Illinois LLC Name Search – How to Name Your LLC

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Forming an LLC requires a different business name, which must be unique and adheres to the guidelines. The great thing is Illinois’ Secretary of State page includes a name availability checker. Check out LLC Name Search to learn more.

Meanwhile, if you’re interested in learning more about starting an Illinois LLC or forming an LLC in general, you can check out How to Start an LLC.

How to Name an LLC in Illinois

Time needed: 5 minutes.

There are guidelines to follow in doing an Illinois LLC name search. To learn more, check out LLC Naming Guidelines or read Foreign LLC Application for Registration if you’re planning to register a foreign LLC.

  1. Check Name Availability

    Search the Business Entity Records in Illinois’ Official Secretary of State page to check if your chosen business name is available. You may also try typing your trademark, business, or domain name on any search engine to generate businesses with similar names and to ensure your trademark is unique and meets the state’s requirements.

    Check out How to File a DBA to learn more about registering a DBA or trademark. For social media pages, use Social Searcher to avoid using similar page names.

  2. Check Domain Availability

    If your business name is still available, you must register for a domain name using Namecheap, Google Workspace, or other domain name sites. So customers can easily find your business over the Internet. Use the Kinsta app to manage your domains efficiently.

  3. File Name Reservation

    A Name Reservation Certificate is required along with a Certificate of Formation. You can reserve a name online, by mail, or in person with a $25 filing fee (plus tax for online).

    File your Certificate of Formation and Name Reservation online on the Secretary of State Online Services page of Illinois. You may also download the pdf file of the Name reservation form and submit it with the processing fee to the Secretary of State Department of Business Services Limited Liability Division 501 S 2nd Street, Room 351, Springfield, IL 62756.

Guidelines to Follow in Naming LLC

  •  Use a business name with the abbreviation “LLC” or the phrase “Limited Liability Company.” 
  • Your decided business name must not coincide with any existing government entity. Otherwise, you might have to face legal lawsuits when filing your LLC.
  • Use the LLC name availability checker to ensure your business name is unique.
  • Get a license first if you plan on using restricted words to avoid any complications.

Note that you must put adequate effort into naming your LLC because this name will be with your business for a long time. Making your LLC name unique is vital as it would prevent people from confusing your business with others, not to mention it would be easier for them to recall your business, products, or services.

How To Do an Illinois LLC Online Name Search

As a part of your LLC registration process, it is important to have a suitable name for your LLC in accordance with the State naming guidelines. So, when you select a name for your LLC, you also need to run a quick search on the Illinois Business Entity Search page to check whether the name is unique and there is no other business running in the State with the same name.

1. Access the Business Entity Search Tool on the State website

The Illinois Secretary of State website offers a Business Entity Search Tool to assist you in finalizing a name for your business LLC. This tool is helpful in deciding the uniqueness and availability of the name. Also, keep a list of backup names ready, so you can select a final name in a few attempts.

2. Run the Search

After you navigate to the Search page, you can run the search by Business name. To begin the search process, you need to enter the name in the blank space under the ‘Entity name’ heading and then click on the “Search” tab after clearing the captcha.

Perform the Search

You can also conduct the search using other available options, such as Name, Keyword, or partial word. Using such filters can give you more refined results such as giving you the list of businesses running with exact names, or having similar keywords, or even a single matching word.

While conducting the search, you can exclude usage of identifiers such as “LLC” to access wider results from different forms of business structures running in a similar name. Conduct thorough research of the name by using the provided filters before filing it with the Authorities. You can also refer to the ‘Search instructions’ provided on the search tool page.

If you also wish to use a Trademark for the distinct identity of your business in the State, you can run a trademark search on the Trademark Database of the U.S. Patent and Trademark Office to see whether the chosen name is already in use by any other business entity.

If you also plan on conducting your business online through a website, you should also check if a domain name similar to your chosen business name is available or not.

How Do I Reserve an LLC Name in Illinois

To reserve an LLC name in Illinois you need to submit a name reservation request form to the Illinois Secretary of State by mail or online by paying a filing fee of $25.

Choosing an appropriate name for an Illinois LLC is a crucial first step in making it a success. While there are no specific state laws that govern business names, the State does have a few naming rules to keep you on the right track. This includes choosing a name that is memorable, but not too similar to a name already in use. Also, remember that your name is your online identifier. It is important to choose a name that is unique and not too similar to the names of other Illinois business entities.

The Illinois Secretary of State offers a business entity search tool to help you find and select a suitable name for your LLC. The tool can save you time and money. It is also a good place to start when you are deciding which state to form your LLC in.

The Illinois Secretary of State offers an online form for filing a Name Reservation Certificate. You can also file a name reservation by mail. The fee is $25, and it is valid for 90 days. A Certificate of Good Standing is also required to confirm that your business has filed all necessary annual reports and paid all required fees.

The Illinois SOS also offers a more sophisticated tool for checking the availability of your name. The Business Entity Search Tool is available on the Secretary of State’s online services page. The tool can be searched for a specific business name, but you can also look up a list of regulated industries. It is also possible to check out the state’s social media pages for information about locations.

The Illinois Secretary of State also offers a free trademark search tool. You can use the search to find out if your chosen business name has already been trademarked by another company. You can also use the website to find out if your chosen business name is available for use on your website. This may be necessary if you want to use the name on your website, but you may need to pay a small fee for a domain name.

The Illinois Secretary of State’s website is a great resource to help you start and manage your business. You can find a list of required forms and find out how to reserve an LLC name. It can also help you avoid the dreaded legal red tape. You can also find out if you need to apply for any special permits, and which ones are available.

The Illinois Secretary of State website also offers a helpful checklist that is easy to follow. The list includes the important items to include in your name reservation application. It is also possible to reserve an LLC name in Illinois by mail. The most important thing to remember is to take special care from start to finish. Choosing a name that is unique and suitable for your business will pay off in the long run.


What is a Trade Name?

A trade name (doing business as (DBA) name) is the official name under which a proprietor or company chooses to do business.

Is having a domain name necessary?

Having a domain isn’t necessary, but it is recommended. If you have a domain name, customers will find you more accessible through online means with your online website.

What if my name is unavailable?

For domestic LLC, you can simply brainstorm for another name if the one you pick is no longer available. For foreign LLC, you must think up a “fictitious name,” which you’ll use only in the state.

In Conclusion

LLC names are important as it is the main identity of your business. While naming your LLC make sure to choose the one that suits the nature of your business. Follow the naming guidelines before you start filing your LLC name

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