Missouri Business Name Search: How to Check and Reserve a Name

Before you file your LLC or corporation, you need a name that's actually available. Missouri's business entity search is free, takes minutes, and can save you from the frustration of discovering your chosen name is already taken after you've announced it to everyone. This guide walks you through searching for an available business name in Missouri and reserving it so no one else can claim it while you're getting your paperwork together.

Why Check Your Business Name First

Missouri requires every business entity to have a distinguishable name. The Secretary of State maintains a registry of all LLCs, corporations, partnerships, and limited liability partnerships registered in the state. If your name matches or is too similar to an existing one, the Secretary of State will reject your filing. Checking first means you know exactly where you stand before you invest time and money in filing fees and legal setup.

The search is not optional, and it's not something you guess about. Do it before you spend $50 on an LLC filing fee that will be rejected because the name is taken.

What You Need to Do a Missouri Business Name Search

You don't need much. Here's what you'll use:

• A web browser and internet connection
• The Missouri Secretary of State's free business entity search tool
• Your desired business name (or several options, in case your first choice is unavailable)
• 25 dollars, if you decide to reserve your name

That's it. No software to install. No registration required. No login needed for a basic search.

Step 1: Go to the Missouri Business Entity Search

Open your browser and navigate to the Missouri Secretary of State's Business Entity Search at https://bsd.sos.mo.gov/BusinessEntity/BESearch.aspx?SearchType=0. This is the official, free search tool maintained by the Secretary of State.

Bookmark this page if you think you'll be coming back. You'll see a simple search form with a text box and a Search button. The page loads quickly and there are no ads or popups.

Step 2: Enter Your Proposed Business Name

Type your desired business name into the search box. Type the name exactly as you plan to file it, or close to it. If you're forming an LLC, include "LLC" at the end. If you're forming a corporation, include "Corporation" or "Corp." or "Inc."

For example, if you want to register "Midwest Marketing Solutions LLC," type that in the box. If you're planning a DBA (fictitious name) instead, you'd search for that exact name.

You don't have to get the capitalization or spacing perfect, but it's useful to search the way you plan to file so you can see exactly what will show up in the Secretary of State's registry.

Step 3: Review the Search Results

Click Search. The database returns results in seconds. You'll see one of two outcomes:

No matching results: Your name is available. This is good news, and it means you can move forward. Write down the exact name you searched.

One or more matching results: The database found existing entities with the same or similar name. Click on each result to see the full details: entity type (LLC, corporation, etc.), registration date, and status (active, dissolved, etc.). An active entity with the same or confusingly similar name means you cannot use that name. A dissolved entity with that name might be worth investigating further, because a dissolved entity can sometimes block your name for a period of time depending on how recently it dissolved.

If your exact name is already taken but a slightly different version is not, you can try a variation. Remember that Missouri requires your name to be distinguishable from all existing registered entities. "Midwest Marketing Solutions LLC" and "Midwest Marketing Solutions, LLC" are not sufficiently different, they'll be seen as the same name. "Midwest Marketing Solutions Group LLC" would be distinguishable. The test is whether an average person would confuse one for the other.

Step 4: Try Related Searches If Your First Choice Is Taken

If your preferred name is unavailable, try searching variations. Run separate searches for:

• Your name plus "Group" (if that fits your business)
• Your name plus "Pro" or "Pros"
• A regional or descriptor word added to your name
• A completely different name you've considered

Do at least three searches to give yourself options. You might discover that your first choice was taken, but a close variation is wide open and works just as well.

Understanding Missouri Name Requirements

Missouri has specific rules about what your business name can and cannot contain. Knowing these rules before you search saves you from falling in love with a name that won't pass the Secretary of State's approval.

For LLCs: Your name must include "Limited Company" or "Limited Liability Company," or the abbreviation "LLC," "LC," "L.C.," or "L.L.C." The name cannot include words like "corporation," "incorporated," "limited partnership," or "Ltd." that misrepresent what your entity actually is.

For corporations: Your name must include "Corporation," "Incorporated," "Company," or their abbreviations (Corp., Inc., Co.). It cannot include "LLC" or other terms that suggest a different entity type.

For all entities: The name must be distinguishable from any existing corporation, LLC, limited partnership, limited liability partnership, or limited liability limited partnership already on file with the Secretary of State. The comparison is literal but reasonable: if someone searching for the other entity's name would not also pull up yours, you're probably clear.

Words implying a government agency or governmental authority are prohibited. You cannot name your business "Missouri State Department of X" or anything similar.

Step 5: Reserve Your Name If You're Not Filing Immediately

If you've confirmed your name is available but you're not ready to file your Articles of Organization or Articles of Incorporation immediately, you can reserve the name. A name reservation protects your choice for 60 days while you take care of other startup tasks.

To reserve your name, visit the Missouri Business Filings online portal at https://bsd.sos.mo.gov/. Look for the option to file a "Name Reservation" or "Application for Reservation of a Business Name." Complete the form, providing your desired name, the type of entity you plan to form, and your contact information. The filing fee is $25.

You can submit this application online, and the Secretary of State typically processes name reservations immediately. Your reservation will be valid for 60 days from the date you file. If you haven't completed your full business formation in that time, you can renew the reservation for two additional 60-day periods, giving you a maximum of 180 days total to get your filing done. Each renewal costs $25.

The name reservation is legally binding. During the reservation period, the Secretary of State will not issue a registration to anyone else using that name. Once you file your full formation documents (Articles of Organization for an LLC or Articles of Incorporation for a corporation), your reservation converts to your official registration, and you don't pay again.

Tips to Avoid Common Mistakes

Search as you plan to file it. If you're forming an LLC, include "LLC" in your search. If you're registering a DBA, search the DBA name. Searching variations of what you'll actually file can lead you to think a name is available when the official version isn't.

Don't assume a similar name is clear just because it's slightly different. "Blue Sky Consulting LLC" and "Blue Sky Consulting Group LLC" are more similar than you think. Search both exactly as they would appear. The Secretary of State's test is whether the average person would be confused, and you want to be well clear of that line.

Don't overlook dissolved entities. If the search shows an entity with your name that is marked as dissolved or inactive, don't assume it's completely clear. Some dissolved entities can block a name for a period of time. If you're close to an existing dissolved entity's name, you might get a rejection even though it's no longer active. Use a different name to avoid the hassle.

Reserve the name if you're going to delay your filing. The $25 reservation fee is cheap insurance against losing your preferred name if you need a few weeks to tie up loose ends before you file. Many first-time business owners search, get excited about their name, announce it, and then discover someone else filed the same name before they completed their own paperwork. Reservation prevents this completely.

Check for federal trademark conflicts separately. Missouri's business name search does not check the federal trademark database. If you're concerned about trademark conflicts, do a separate search at the U.S. Patent and Trademark Office website. A name can be available in Missouri but still infringe on a federally registered trademark, which could result in a cease-and-desist letter down the road. This is less likely for a local business, but it's worth checking if your name could be used by multiple businesses nationally.

Keep your search results. Take a screenshot or print the page showing your search results. If anyone ever questions whether you did your due diligence in checking the name, you'll have documentation showing the name was available on a specific date.

Expected Results and Next Steps

After you complete your search and understand Missouri's naming requirements, you should have one of three outcomes:

Your preferred name is available and you're ready to file immediately: You don't need a reservation. You can go ahead with filing your LLC Articles of Organization or corporation Articles of Incorporation. Include your name exactly as it appeared in your search.

Your preferred name is available but you need more time: File a name reservation for $25. This holds your name for 60 days while you complete other startup steps like getting an EIN, setting up a business bank account, or securing financing. You can renew the reservation for up to 180 days total if you need more time.

Your preferred name is taken but you found an alternative that works: Use your backup name. Run one more search on the name you plan to use, just to confirm it's still available when you're actually filing. Then proceed with your formation.

A name search takes 10 to 15 minutes and costs nothing. The peace of mind that your chosen name is actually available is well worth the time. Don't skip this step and don't guess about availability. Use the official search tool, document your results, and move forward with confidence.

Disclaimer

This article is informational only and does not constitute legal or tax advice. Business naming rules, registration fees, and processing procedures can change. Before you finalize your business structure or file any formation documents, consult with a Missouri business attorney or CPA who can review your specific situation and answer questions about liability protection, tax implications, and long-term business planning. The Missouri Secretary of State's website at https://www.sos.mo.gov/business/corporations is the official source for current fees, requirements, and procedures.