An Oklahoma Secretary of State business search is free and runs on the SOS Business Entities Search. Type the entity name you have in mind and check whether any corporation, LLC, partnership, trade name or reservation already uses it. If nothing matches, the name is likely available, but the SOS calls this a preliminary search, not an approval.
Oklahoma has two quirks worth knowing: name reservations last only 60 days ($10), and DBAs are filed with the Secretary of State as a $25 Trade Name Report rather than with a county clerk.
Updated October 2026.
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Best LLC Formation Services in Oklahoma (2026)
If you’d rather not handle forming your LLC once your name is clear in Oklahoma yourself, these are the services we recommend, in order. The table compares price and what’s included.
| Rank | Provider | Best for | Price | What’s included |
|---|---|---|---|---|
| 1 | Mainstay Filing | Forming an LLC with the agent, EIN and annual report included | $199/year + state fee at cost | LLC formation filing, registered agent for the year, EIN application, annual report preparation and filing |
| 2 | OK Registered Agent.org | Oklahoma registered agent service only | $99/year | $99 per year, flat; in-state street address for the registered office; legal documents served on the company are scanned and sent to the owner online |
| 3 | Oklahoma Registered Agent.co | Oklahoma registered agent service only | $99/year | in-state street address for the registered office; legal documents served on the company are scanned and sent to the owner online |
1. Mainstay Filing
Mainstay Filing is our top pick in Oklahoma. It costs $199/year + state fee at cost and covers lLC formation filing, registered agent for the year, EIN application, annual report preparation and filing. The price stays the same every year, with no add-on menu.
2. OK Registered Agent.org
OK Registered Agent.org is a Oklahoma registered agent service at $99/year. It provides $99 per year, flat; in-state street address for the registered office; legal documents served on the company are scanned and sent to the owner online. It’s a fit if you only need a registered agent rather than full formation help.
3. Oklahoma Registered Agent.co
Oklahoma Registered Agent.co is a Oklahoma registered agent service at $99/year. It provides in-state street address for the registered office; legal documents served on the company are scanned and sent to the owner online. It’s a fit if you only need a registered agent rather than full formation help.
Oklahoma business name search at a glance
| Item | Oklahoma details (as of October 2026) |
|---|---|
| Filing office | Oklahoma Secretary of State, Business Services |
| Search tool | Business Entities Search (name availability search is free per the fee schedule) |
| LLC Articles of Organization | $100 |
| Name reservation | $10; 60 days; $10 extension/renewal |
| Trade name (DBA) | Trade Name Report with the SOS, $25 |
| LLC annual certificate | $25, due each year on the LLC’s anniversary date |
| Name change (amended articles) | $100 |
Fees are from the Secretary of State’s published fee schedule. Paying by credit card adds a 4% charge, and same-day in-person filing costs $25 more per document. Mainstay Filing’s Oklahoma LLC cost guide totals the full formation cost.
How to search business names with the Oklahoma Secretary of State
Open Business Entities Search
The SOS page is titled “Search Corporation Entities.” Its main form has a single Entity Name box, with an Advanced Search link for more options. Go to the search page; no account is needed.
Search the root of the name
Enter the distinctive words only. “Red Dirt Roofing” is a better query than “Red Dirt Roofing LLC,” because the ending doesn’t help distinguish your name from an existing one.
Open each close match
Click a result’s filing number to see the full record: entity type, status and filing history. Oklahoma compares new names against active entities and also against corporations and LLCs that existed or were in good standing within the past three years, so a recently lapsed company can still block your name.
Remember trade names and reservations
Registered trade names, fictitious names and reserved names also count when the SOS checks availability. If a match is a trade name or a reservation, treat the name as taken.
Short on alternatives? Run a few keywords through Namechk’s business name generator, then come back and search the best options.
Oklahoma business name requirements
The rules are in Title 18 of the Oklahoma Statutes (18 O.S. §§ 1006 and 2008):
- LLCs: must include “limited liability company” or “limited company,” or LLC, LC, L.L.C. or L.C. “Limited” can be shortened to Ltd. and “Company” to Co.
- Corporations: Oklahoma accepts a long list of words: association, company, corporation, club, foundation, fund, incorporated, institute, society, union, syndicate or limited, or their abbreviations.
- Distinguishable upon the records: the name must differ from current entities, entities active within the past three years, trade and fictitious names, and reserved names.
- Consent exception: a similar name can be used with the written consent of the existing holder or under a court decree.
Words that suggest a regulated business, such as bank or insurance, can bring extra scrutiny from the relevant state regulator, so check before you commit to one.
How to reserve a business name in Oklahoma
Oklahoma’s reservation window is shorter than most states’, so file it only when you are close to forming.
- Complete the Application for Reservation of Name (SOS Form 0034), or use the online filing wizard and choose “Name Reservation” or “LLC Name Reservation.”
- Pay the $10 fee.
- The name is held for 60 days (18 O.S. § 1139 for corporations and § 2009 for LLCs).
- If you need more time, the fee schedule lists a $10 extension or renewal.
Check trademarks, domains and social handles
The SOS entity search won’t show federal trademarks. Run a USPTO trademark search to see if another company owns rights in the name. Oklahoma also registers state trademarks through the Secretary of State ($50 per class for a 10-year term).
Then check the name online. Namechk shows whether the domain and social usernames are free, and the domain name generator suggests workable alternatives.
We created a tool that makes it easy.
How to file a DBA (trade name) in Oklahoma
Oklahoma DBAs are state filings with the Secretary of State. There are two versions:
- Trade Name Report (18 O.S. § 1140; SOS Form 0021): for any business, including sole proprietors and LLCs. The fee is $25, and you can file online. Amendments, transfers and withdrawals are $25 each.
- Certificate of Partnership Fictitious Name: for general partnerships, $50 to file, $25 to amend or cancel.
Neither filing has a publication requirement. Because registered trade names are counted when the SOS checks entity names, a trade name search is part of any thorough availability check.
An LLC doing business under its exact registered name doesn’t need a Trade Name Report. If you plan to market under a shorter brand or a second name, file the report before you print signs or ask a bank to open an account in that name.
After the search: registering your Oklahoma business
Once the name is clear, the formation steps are short. Our Oklahoma LLC guide covers them in depth.
- File Articles of Organization (SOS Form 0073, included in the Form 0074 packet) online or by mail. The state fee is $100.
- Choose a registered agent with an Oklahoma street address. Mainstay Filing includes a registered agent in its formation package (Oklahoma costs); see our Oklahoma registered agent guide for the requirements.
- Get an EIN from the IRS (free).
- File the $25 annual certificate (SOS form) each year on your anniversary date. An LLC that doesn’t file within 60 days after the due date falls out of good standing. The Oklahoma start-a-business guide covers tax registration and licenses.
FAQs
Is the Oklahoma business entity search free?
Yes. The Oklahoma Secretary of State’s fee schedule lists the name availability search as free of charge, and the Business Entities Search on sos.ok.gov needs no account. You pay only when you file, for example $10 for a name reservation, $25 for a trade name or $100 for LLC Articles of Organization.
How long does an Oklahoma name reservation last?
An Oklahoma name reservation lasts 60 days, shorter than the 120 days many states allow. It costs $10 and can be filed online or with SOS Form 0034. The fee schedule lists a $10 extension or renewal if you need more time before you file your formation documents.
How do I register a DBA in Oklahoma?
File a Trade Name Report with the Oklahoma Secretary of State, either online or with SOS Form 0021. The fee is $25, and amendments or withdrawals are also $25. General partnerships may instead file a Certificate of Partnership Fictitious Name for $50. Oklahoma does not require DBAs to be published in a newspaper.
Can I use the name of a dissolved Oklahoma company?
Not always right away. Oklahoma compares new names with corporations that existed, and LLCs that were in good standing, within the past three years. A name used by a company that lapsed recently may still be unavailable. The holder’s written consent can sometimes clear a conflict.
How much does it cost to start an LLC in Oklahoma?
Filing Articles of Organization with the Oklahoma Secretary of State costs $100. After that, the LLC files a $25 annual certificate every year on its anniversary date. A name reservation ($10) and a trade name ($25) are optional extras. Credit card payments carry a 4% charge.
How do I change my LLC’s name in Oklahoma?
File Amended Articles of Organization with the Oklahoma Secretary of State. The fee schedule lists $100 for the amendment. The new name must meet the same rules as a new filing, so search it in the Business Entities Search first, make sure it ends with an LLC designator, and consider a 60-day reservation if you need to hold it while you prepare the paperwork.
Does the Oklahoma SOS search show trademarks?
No. The Business Entities Search covers entities, trade names and reservations on file with the Oklahoma Secretary of State. It doesn’t show federal trademarks. Search the USPTO database and Oklahoma’s state trademark records, and confirm the domain and social handles you want are available before you commit.
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