How to search Oklahoma business entities online

Oklahoma business entity records are searchable through the Secretary of State's Corporation Inquiry portal at sos.ok.gov/corp/corpInquiryFind.aspx. The search page is protected by Cloudflare's Turnstile CAPTCHA, which means 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. You can also 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.

This guide is informational only and is not affiliated with the Oklahoma Secretary of State's office. Verify current procedures at sos.ok.gov — Corp Filing. Source: Oklahoma Secretary of State, verified May 2026.