South Dakota Business Entity Search
By Edmond Hui · Last updated October 5, 2026
The short answer. The South Dakota Secretary of State (Business Services) keeps South Dakota's register of business entities. The official search is the state's “Business Information Search” page, on sosenterprise.sd.gov. Searching is free.
South Dakota Business Entity Search at a Glance
| Register kept by | The South Dakota Secretary of State (Business Services) |
| Official search | Business Information Search |
| Cost to search | Free |
| Search by | Entity name; entity or filing number |
| Filed documents online | Yes, free |
| Copy fee | $2.00 per page (see Documents) |
| Certifying a copy | Adds $15.00 (see Documents) |
| Name reservation | Not confirmed |
| Name reservation fee | $25.00 |
| Bulk data | Available, for a fee |
Read from the government sources listed at the foot of this page, last checked October 5, 2026. See the sources.
How to Search South Dakota's Register
The official search is the state's “Business Information Search” page, on sosenterprise.sd.gov. Searching is free. Open the official search.
On the main search page you can search by:
- Entity name
- Entity or filing number
The state also runs separate search pages:
- Search by Registered Agent, to search by registered agent or registered office.
What a Search Result Shows
A South Dakota result includes the items below, according to the state's own pages or a result page we read. It may show more.
- Entity type
- Status
- Formation or registration date
- When the next report is due
- Principal office address
- Mailing address
- Registered agent or registered office
- Filing history
- Images of filed documents
What Each South Dakota Status Means
The status is the label the register puts on each entity. Where the state defines a label, the meaning below restates that definition, with a link to the state page it comes from. Where it does not, we do not guess from the word, because the same word can mean different things in different states.
| Status label | What it means | Applies to |
|---|---|---|
| “Delinquent” Named on sdsos.gov | The entity has not filed its annual report within two months after the due date, and late fees are assessed. Based on the definition at sdsos.gov | All entities |
| “Administratively Dissolved” Named on sdsos.gov | The state does not define this label on the page we reviewed. Check the search page for what it means. | All entities |
This list is not complete. It holds the labels we found in the filing office's own pages, and the register may show others.
If the search shows that your own LLC was dissolved, see how to reinstate an LLC in South Dakota.
A search result is not a certificate of good standing. If a bank or another state asks for one, see how to get a South Dakota certificate of good standing.
Viewing and Ordering Documents
Filed documents can be viewed online. Viewing them online is free.
Copies cost $2.00 per page, and certifying them adds $15.00. Archived documents filed before 1994 must be requested from the office at $2.00 per page.
Is the Name Available?
The state has a separate search for checking whether a name is available. Open the name availability search. The state says this search is only a preliminary check, not a formal decision that the name is available.
The state's naming standard, in its own words: “distinguishable on record.”
We have not confirmed whether South Dakota requires a name reservation before you file. A name reservation costs $25.00.
Our free LLC name checker looks up domain and social media handle availability for a name. It does not search South Dakota's register, so check the state's search as well.
Bulk Business Entity Data
South Dakota offers bulk business entity data for a fee. The Secretary of State sells its business filings database by subscription, with a full database purchase and monthly or weekly updates. See the state's bulk data page.
Ready to form? See what goes on the South Dakota articles of organization.
Frequently Asked Questions
This guide is general information, not legal or tax advice, and reading it does not create an attorney-client relationship. It reports what each state's business entity filing office publishes about searching its register, with the sources this page cites. It cannot tell you whether a particular business is active, authorized or reliable: read the state's own record for that, and search tools, status labels and fees change between our reviews. Confirm anything you rely on with the filing office named on this page before you act on it.
Sources
Each entry below is a document recorded in our verified South Dakota sources, and each entry says what the document is. Some statutory text is read from an accurate mirror rather than from the state's own host, and those say so. Where we hold the citation but no stable public link, the citation is printed on its own rather than pointed at a guessed address.
- sdsos.gov/business-services/corporations/default.aspxCorporations (South Dakota Secretary of State)
- sosenterprise.sd.gov/BusinessServices/Business/FilingSearch.aspxBusiness Information Search
- sosenterprise.sd.gov/BusinessServices/Business/RaSearch.aspxSearch by Registered Agent
- sosenterprise.sd.gov/BusinessServices/Business/FilingDetail.aspx?CN=000196132076189040091055143243166191123164095119Business Entity Detail
- sdsos.gov/Business-Services/corporations/contact.aspxCorporations Contact Us and Frequently Asked Questions
- sosenterprise.sd.gov/BusinessServices/Business/NameAvailability.aspxBusiness Name Availability
- sdsos.gov/general-information/filing-fees.aspxFiling Fees
- sdsos.gov/docs/business/reservationofllcname20180215.pdfApplication for Reservation of Name, Limited Liability Company (Feb 2018)
- sdsos.gov/docs/business/llc-domestic-articlesoforganization.pdfArticles of Organization, Domestic Limited Liability Company
- sdsos.gov/Business-Services/database-downloads.aspxDatabase Downloads
- sdsos.gov/docs/ucc-docs/NEWBusinessUCCDatabaseSubscriptionForm.pdfBusiness and/or UCC Database Subscription (BusinessUCC 20250807)
- Name standard: SDCL 47-34A-105 (cited for the company name on the Secretary of State's Articles of Organization form)
Edmond Hui · Founder, MyStateLLC
Edmond Hui is a software engineer and serial entrepreneur based in New York who has founded multiple online businesses across e-commerce, media, and information publishing. Before transitioning into tech, he spent years as a commercial real estate professional closing deals totaling over 100,000 square feet, giving him firsthand experience with business formation and entity structuring. He built MyStateLLC to provide the free, state-specific LLC guidance he wished existed when forming his own companies.