The Montana Secretary of State business search lives at biz.sosmt.gov/search and lets anyone look up a registered LLC, corporation, nonprofit, or other entity in the state for free.1Montana Secretary of State. Montana Secretary of State Business Search No account is needed to search or to view a record. You only have to log in when you want to file something, submit an annual report, or order certified copies.2Montana Secretary of State. Montana Secretary of State Online Business Services
How to Run the Search
The portal offers two modes. Basic search takes a business name or file number. If you have the file number, use it; it goes straight to the right record. Montana file numbers start with a letter followed by six to eight digits, for example D-123456.3Montana Department of Revenue. Business Registration Form
Searching by name alone returns limited results, and the portal itself recommends switching to the advanced search to narrow things down.1Montana Secretary of State. Montana Secretary of State Business Search Advanced search adds filters so you aren’t scrolling through dozens of similar hits. Common names like “Mountain View” or “Big Sky” can throw a long list, and filtering by entity type or status is usually enough to find the right one quickly.
Click the entity name in the results to open its full detail page.
What the Record Tells You
A detail page pulls together the facts most people are checking for: due diligence on a potential partner, confirming a vendor is real, or finding the right address to serve legal papers. You’ll see:
- The entity’s legal name and file number
- Current status (active, dissolved, or revoked)4Montana Secretary of State. Business Services
- Entity type (LLC, profit corporation, nonprofit, and so on)
- Whether the entity was set up to last indefinitely or for a specific term
- The registered agent’s name and physical address
- Principals, meaning the members or managers of an LLC, or the officers and directors of a corporation
Montana requires every registered entity to keep an agent in the state to accept legal documents, which is why the agent’s physical address is on file. If you’re trying to serve a company, that’s the address you want.
If you’re starting from a person’s name instead of a company name, the Secretary of State also runs a separate principal search tool that returns the entities a given individual is associated with.4Montana Secretary of State. Business Services
Reading the Record for Compliance Signals
The record is also a quick way to see whether a company is actually keeping up with the state. Every Montana business entity must file an annual report between January 1 and April 15.5Montana Code Annotated. Montana Code Annotated 35-8-208 – Annual Report for Secretary of State A missed report shows up on the record. So does an inactive status.
Those signals matter because Montana can administratively dissolve an entity without any court order. The common triggers are failing to file the annual report within 140 days of the deadline, letting the registered agent lapse for more than 60 days, or not paying required fees.6Montana State Legislature. Montana Code Annotated 35-8-209 – Administrative Dissolution If a record you’re reviewing shows a dissolved status, the entity has fallen out of compliance, and that changes what you can expect from any dealings with it.
Checking a Name Before You Register
The same search is the first stop before forming a new entity. Montana requires every business name to be “distinguishable” from names already on file, and the standard is stricter than people expect: abbreviations, punctuation, and entity suffixes like LLC versus Inc. do not make two names distinct. If your proposed name is too close to an existing one, the filing system will reject it even when the names aren’t identical.7Montana Secretary Of State Help Center. The Form Indicates That My Name Is Unavailable
If the name is available but you’re not ready to file formation documents, you can reserve it for $10. Transferring or canceling a reserved name costs nothing.8Montana Secretary of State. Business Services Filing Fees
When You Need to Log In
Searching and viewing records are open to anyone. An account at biz.sosmt.gov is required when you want to:
- File formation documents or submit an annual report
- Order a Certificate of Existence, Certificate of Fact, or certified copy of a filed document
- Request a bulk Corporate Download of Montana’s entity data4Montana Secretary of State. Business Services
A Certificate of Existence is the official proof that a Montana entity is organized under state law and hasn’t been terminated. Under Montana Code Annotated 35-8-216, it confirms the company’s name, date of organization, duration, and whether the annual report is current, and the statute says it can be relied on as conclusive evidence that the entity exists and is authorized to do business.9Montana State Legislature. Montana Code Annotated 35-8-216 – Certificate of Existence or Authority Banks, lenders, and courts routinely ask for it. A domestic Certificate of Existence is $5, a Certificate of Fact is $15, and a certified copy of a filed document is $10.10Montana Secretary of State. Business Services Filing Fees If you need one quickly, 24-hour priority handling costs an extra $20 and one-hour processing costs an extra $100 on top of the base fee.8Montana Secretary of State. Business Services Filing Fees