South Dakota lesson 1 of 6
Name your South Dakota LLC
The Secretary of State will reject your Articles of Organization if the proposed name is not distinguishable from a name already on record, which costs you time and, if filing by mail, the resubmission fee.
Required wording
A South Dakota LLC name must contain the words Limited Liability Company, Limited Company, or an abbreviation such as L.L.C., LLC, L.C. or LC. Limited may be shortened to Ltd. and Company to Co.
- Acceptable: Black Hills Fabrication LLC, Black Hills Fabrication, L.L.C.
- Not acceptable: wording that implies the LLC is a bank, insurer or government agency without the required approval
- Certain regulated words may need approval from the relevant South Dakota licensing board before the name is accepted
Checking availability and reserving a name
Search the Secretary of State's business entity records before filing, since South Dakota requires a proposed name to be distinguishable from names already on record. Minor punctuation changes or a different generic designator are usually not enough to separate two names.
If you are not ready to file the Articles of Organization but want to hold a name, South Dakota allows a name reservation with the Secretary of State; check the current reservation fee and reservation period on the Secretary of State's fee schedule before submitting.
Operating under a name different from your Articles requires a separate trade name registration with the Secretary of State, distinct from the LLC's legal name filing.
🇺🇸 Check United States company name availability
Search the official United States state registry before you file. Opens the government portal in a new tab.
Tip: also confirm the .com domain and matching social handles are free before you commit.
Key takeaways
- End the name with LLC, L.L.C., LC, L.C. or the words Limited Liability Company or Limited Company in full.
- Search the Secretary of State's business database before filing your Articles of Organization.
- A separate trade name registration is needed if you trade under a name different from your Articles.
Official sources
Or let us file your South Dakota LLC for you
Everything above is yours to use for free. If you would rather hand it over, we prepare and file the Articles of Organization, act as your registered agent, and track your ongoing deadlines.
Last reviewed: September 2026 - reviewed by Gullia Filing Legal & Formation Team