Secretary of State WI Business Search

Official Wisconsin Secretary of State business search database. Access the WI SOS business entity database to verify corporations, LLCs, partnerships, and other business registrations in Wisconsin. Free government database with real-time information.

About Wisconsin Secretary of State Business Search

What is the Wisconsin SOS Business Search?

The Wisconsin Secretary of State business search is the official government database that contains information about all business entities registered in Wisconsin. This includes corporations, limited liability companies (LLCs), partnerships, and other business structures operating in WI.

When you search "secretary of state wi business search," you're looking for this official database to verify business registrations, check entity status, and conduct due diligence on Wisconsin businesses.

What Information Can You Find?

  • Business entity name and type (Corporation, LLC, etc.)
  • Registration date and current status
  • Registered agent information
  • Principal office address
  • Officers and directors (for corporations)
  • Annual report filing status

Using Wisconsin DFI corporate search and WIMS UCC

Wisconsin business entities and UCC records are administered by the Department of Financial Institutions (DFI), not the Secretary of State. Corporate records search runs on apps.dfi.wi.gov, while the Uniform Commercial Code search uses the WIMS application on wims.dfi.wi.gov. The map’s two links match those split entry points—use corporate search for charter status and WIMS when you need UCC filings.

SOS information

Wisconsin business entities & Secretary of State workflows

Search corporate records

Search by legal entity name or other fields the form provides, then open the detail view for DFI entity ID, status, registered agent, charter history, and annual-report year indicators. Advanced search and name availability sit on linked pages from the same corporate search area. The help table explains what DFI does and does not index (for example FEINs, trade names, and general partnerships are outside routine corporate search).

  • Corporate search does not replace the WIMS UCC search when you are checking financing statements or liens.

File or manage business entities

Formations, annual reports, and certified copies use DFI business services, online ordering, and filing paths linked from dfi.wi.gov. Follow published fees and instructions before you pay.

UCC information

Financing statements & lien search

UCC search (WIMS)

Open WIMS UCC search and follow the workflow the live application presents for debtor or filing-number lookups, result selection, and any fees or authentication steps required before you view or purchase records. Use DFI’s UCC pages on dfi.wi.gov for forms, filing policy, and division contact when the WIMS screens point you there.

Tips if the site feels confusing

  • apps.dfi.wi.gov corporate search and wims.dfi.wi.gov UCC search are different applications; a clean entity record does not prove the UCC index was searched.
  • DFI publishes what corporate search includes and excludes—read that table before you assume an officer list or DBA appears in the free index.
  • Official fees, certified search products, and filing rules belong to the Wisconsin Department of Financial Institutions and your advisors, not third-party summaries.

Educational overview only. Proof of Good Standing is not a government agency. Confirm fees, forms, and requirements on the Wisconsin Department of Financial Institutions before you file or rely on search results.

Form a business

Starting a business in Wisconsin

Entity search on this page helps you verify names and good standing. When you are ready to form a new LLC, corporation, or nonprofit, use the same next steps we link from Business Lookup: confirm the name on the official register, choose a structure with your CPA or attorney if needed, then file through the state agency (and plan for publication, registered agent, and any industry licenses that apply).

Typical state filing fees

These amounts can change when agencies update their fee schedules. Double-check the current fee list, forms, and deadlines on the official Wisconsin business filing site yourself before you pay or submit anything.

  • LLC filing (state): $130
  • Corporation filing (state): $100
  • Publication / notice: Not modeled as required for LLCs in this table.
  • Ongoing reports: Annual report (LLC): $25 included in our first-year calculator total.
  • Franchise tax applies to corporations

Next steps

Form an LLC

Liability protection with lighter admin than a typical corporation.

Start your LLC