How to search Nebraska business entities online
Updated August 2026
Quick Answer
Nebraska's business search is at nebraska.gov/sos/corp/corpsearch.cgi, run by the Secretary of State's Corporate Division. Search by name (Starts With, Keyword, or Sounds Like) or account number after passing a reCAPTCHA — note this isn't a formal name-availability check, which requires a separate written request. The portal itself runs on a legacy CGI-based interface — expect a dated look — and filing anything requires a separate eDelivery account rather than the search login.
- Go to nebraska.gov/sos/corp/corpsearch.cgi and pass the reCAPTCHA.
- Search by business name (several match modes) or account number.
- Review the result — for a formal name-availability answer, email sos.corp@nebraska.gov instead.
reCAPTCHA required, and name availability isn't checked through the search
Nebraska's search portal requires completing a reCAPTCHA before each search, which blocks automated or scripted lookups. Separately, the portal is not a formal name availability tool — a name appearing or not appearing in results is not an official determination. To check name availability, you must submit a written request by email, fax, or mail to the Corporate Division.
What the search covers
The database covers all entities registered with the Secretary of State: domestic and foreign business corporations, professional corporations, Nebraska Benefit Corporations, nonprofit corporations, LLCs, professional service LLCs, limited partnerships, limited cooperative associations, LLPs, trade names, trademarks, and service marks.
Search modes
Five name-based modes are available along with an account number lookup:
- Name Starts With — begins-with match
- Keyword — All Words — every word you enter must appear
- Keyword — Any Word — at least one word matches
- Name Sounds Like — phonetic/Soundex matching
- Name Exact Match — requires the full legal name
- Account Number — the Nebraska Secretary of State entity account number
Name availability — a separate process
Nebraska does not provide name availability determinations through the public search portal. To check whether a specific name is available for registration, you must submit a written request by email to sos.corp@nebraska.gov, by fax to (402) 471-3666, or by mail to the Corporate Division. A name appearing or not appearing in search results is not a formal name availability determination.
Accessing filed documents and certificates
Filed documents and Certificates with Seal (Nebraska's equivalent of a Certificate of Good Standing) can be ordered through the authenticated subscriber portal at nebraska.gov/sos/ccorp. New entity formations and other document filings go through the eDelivery system at nebraska.gov/apps-sos-edocs.
Frequently Asked Questions
Why do I need to complete a reCAPTCHA to search Nebraska businesses?
Nebraska's search portal uses a legacy CGI-based interface and requires completing a reCAPTCHA before each search, which blocks automated or scripted lookups. No account is needed to search; filing requires a separate eDelivery account.
Can I check business name availability through Nebraska's search portal?
Not officially. Nebraska doesn't provide name availability determinations through the public search — a name appearing or not appearing in results isn't a formal determination. To check availability, submit a written request by email to sos.corp@nebraska.gov, by fax, or by mail to the Corporate Division.
Can I search Nebraska businesses by account number?
Yes. Along with five name-based modes — including Name Sounds Like (Soundex) and Name Exact Match — the portal supports a direct Account Number lookup using the Nebraska Secretary of State's entity account number.