How to search Oklahoma business entities online
Updated August 2026
Quick Answer
Oklahoma's business search is the Corporation Inquiry at sos.ok.gov/corp/corpInquiryFind.aspx, run by the Secretary of State. Free name search shows entity name, type, status, and filing date after passing a CAPTCHA — full detail, including the registered agent and officers, costs $5 for up to three entities. The Secretary of State's Corporation Inquiry portal is the sole official search tool for Oklahoma business entities — there's no separate legacy or backup URL to worry about, unlike several other states.
- Go to sos.ok.gov/corp/corpInquiryFind.aspx and pass the CAPTCHA.
- Search by business name or filing number.
- Pay $5 for full detail if you need the registered agent and officer information.
CAPTCHA blocks automated searches
Oklahoma's Corporation Inquiry search page is protected by Cloudflare's Turnstile CAPTCHA. Automated tools and some scraping approaches will be blocked; manual searching works normally once the CAPTCHA is satisfied.
What the search covers
The database covers all entity types registered with the Oklahoma Secretary of State: domestic and foreign LLCs, business corporations, professional corporations, benefit corporations, nonprofit corporations, limited partnerships, LLPs, and limited liability limited partnerships.
Paid access for detailed entity information
Oklahoma is among the minority of states that charge for full entity detail views. Basic name search results are free and show entity name, type, status, and filing date. Accessing the complete record — including officer and director information, registered agent details, and document history — costs $5.00 for 1-3 entities. Researchers who regularly pull entity data in volume may want to use the paid bulk data services available from the SOS office.
Search options
Name searches support partial matching. The Advanced Search panel also lets you search by:
- Filing number — the Oklahoma SOS filing identifier
- Registered agent — individual or organization name (requires detail access)
In-person filing deadline
The Oklahoma City office accepts in-person filings until 4:30 p.m. Central Time. Filings received after this cutoff are processed the following business day unless same-day expedited processing is requested. Same-day service costs an additional $50 per filing.
What 'Terminated' or 'Expired' means in Oklahoma
Oklahoma's own FAQ addresses this directly: those two labels mean an LLC or LP isn't in good standing because of a late Annual Certificate. Certificates are due on the entity's formation anniversary each year, with a 60-day grace period — only after that window closes without a filing does the entity actually become inactive and lose good standing.
Fixing it is cheaper than most states charge: Oklahoma's Reinstatement form itself has no fee, though an Annual Certificate is still required, and still costs its normal fee, for every year that's past due.
Frequently Asked Questions
Does Oklahoma's business search require solving a CAPTCHA?
Yes. The Corporation Inquiry search page is protected by Cloudflare's Turnstile CAPTCHA, which blocks automated tools and some scraping approaches. Manual searching works normally once the CAPTCHA is satisfied.
Is full business detail information free on Oklahoma's search?
No. Basic name search results — entity name, type, status, and filing date — are free, but viewing the complete record, including officers, directors, and registered agent details, costs $5.00 for 1-3 entities.
Can I look up an Oklahoma business by its filing number?
Yes. The Advanced Search panel lets you search directly by the Oklahoma Secretary of State's filing number, in addition to name and registered agent (the latter requiring paid detail access).
How long does Oklahoma give a business before an Annual Certificate lapse changes its status?
60 days past the entity's formation anniversary. Only after that grace period closes with no Annual Certificate filed does the entity actually become inactive and lose good standing.
Does Oklahoma charge a fee just to reinstate?
No — the Reinstatement form itself has no fee. You still owe the normal Annual Certificate fee for each year that's past due, though.