South Dakota · LLC name search · verified 2026-09-08
South Dakota LLC name search: check the official South Dakota Secretary of State records
Type the name you want. We check it for the required LLC designator and for words that are often restricted, then hand you straight to the South Dakota Secretary of State search. Availability is the state’s decision, made in its own records, and that is where you read it.
- Direct link to the official South Dakota search
- Designator and restricted-word check
- Public search, no account needed
Two more checks before you commit: is the domain free and is there a federal trademark. Neither is answered by the state search.
The South Dakota designator rule
Every state requires an LLC's legal name to carry a designator that tells the public what kind of entity it is. The three every state accepts: LLC, L.L.C. and Limited Liability Company. South Dakota may accept further variants; the official page is the final word.
The state also rejects names that are not distinguishable from entities already on its records, and typically restricts words that imply a regulated business or a government body. Words that often need approval or a licence:
Restricted-word list is educational and not South Dakota-specific; confirm with the state. Verified 2026-09-08.
Reserving a name in South Dakota
Most states let you hold a name for a fixed period for a fee before filing the articles. South Dakota’s option, its fee and how long it lasts are published by the South Dakota Secretary of State; we have not independently verified them, so they are linked rather than reprinted.
Most people skip the reservation and file the articles straight away, since forming the LLC is what actually secures the name. Reserve when the paperwork, funding or partners will take longer than the state's window allows.
Three checks the state search does not make
A name that is free in South Dakota may be taken online. Check the .com and the alternatives before you print anything.
State registration is not a trademark. Search the USPTO database; a conflict there can force a rename after launch.
Registering the LLC elsewhere later means passing that state's name check too. Search any other state now, while the name is still a draft.
After the name: what South Dakota asks for next
Frequently asked questions
How do I check if an LLC name is available in South Dakota?
Search the official South Dakota Secretary of State business records, linked above. Availability is decided by the state, on its own rules about names that are distinguishable from existing entities; no third-party site, including this one, can grant or confirm it. The search is public and free.
Does a South Dakota LLC name have to include 'LLC'?
Yes, an LLC designator is required in the name. Accepted forms that every state accepts: LLC, L.L.C., Limited Liability Company. South Dakota may accept additional variants; the official page is the final word.
Can I reserve a name in South Dakota before filing?
Most states offer a paid name reservation for a fixed period. South Dakota's option, fee and duration are on the official South Dakota Secretary of State page linked above; we do not reprint figures we have not verified.
Does a state name search protect the name as a trademark?
No. The state check only tells you whether the entity name can be registered in that state. Trademark rights are a separate question; search the USPTO database linked above and consider a trademark attorney if the brand matters beyond one state.
What comes after the name in South Dakota?
Filing the articles, naming a registered agent with a South Dakota street address, and getting an EIN. Then the South Dakota annual report is due the 1st day of your formation anniversary month, state fee $55. Links to each step are on this page.
Is this legal advice?
No. Vermilion Vitez is a filing-services company, not a law firm. This page is educational reference information verified 2026-09-08; the official state site is the final word.
Searching another state?
Each state keeps its own records and its own designator rule. All states on one page, or jump straight to one.
Last step
Name checked? File it before someone else does.
The South Dakota search tells you the name is open today. Only the accepted articles make it yours.
Or call (954) 470-8356 — we pick up.