Verify any Wisconsin business in seconds.
Wisconsin SOS entity data + USDOT/FMCSA carrier records, with an optional OFAC SDN screen — all in one verification packet. Real-time pull from the official WI SOS, normalized into a clean credit-file PDF.
What you get with a Wisconsin lookup
- Wisconsin SOS entity record — name, status, entity type, formation date, registered agent + address, principal office, and officers/managers where the state exposes them.
- USDOT / FMCSA carrier verification — for trucking deals, we pull the carrier's authority status, MC#, fleet size and MCS-150 history, plus the FMCSA SAFER snapshot. Auto-matched to the SOS legal name when applicable.
- OFAC SDN screening — optional: add it to your search to check the company name against the Treasury sanctions list.
- DBA / Fictitious Name finder — a separate tool that points you to the county/town clerk's own search (or the statewide registry) where a DBA is filed in Wisconsin.
- One merged PDF — cover sheet + SOS record + USDOT snapshot + supporting docs, all in a credit-file-ready packet.
How Wisconsin files business entities
Wisconsin files entities through the Department of Financial Institutions (DFI) at wdfi.org — not the Secretary of State, which is unusual. Wisconsin was the first state to require electronic filing of annual reports, mandating online submission in 2016.
Official portal: Wisconsin Department of Financial Institutions (Corporate Records) ↗
How DBAs work in Wisconsin
Wisconsin files Trade Names at the state DFI exclusively — no county-level DBA filing. The same Corporate Records search returns entities and Trade Name registrations together. Trade Name registration is OPTIONAL in Wisconsin, which limits coverage for sole-proprietor lookups.
Credit-underwriting gotchas in Wisconsin
Wisconsin LLCs owe a $25 annual report fee — among the cheapest in the country — due each quarter based on formation date (staggered, similar to Hawaii). Missed reports trigger 'Delinquent' status after 60 days past due, and administrative dissolution after a year. The quarterly stagger means processors expecting a single annual due date often miss the actual deadline for any given Wisconsin entity.
Practical Wisconsin reference
Filing fees: $130 online ($170 paper) LLC formation fee + $25 annual report
Officer visibility: Officers, members, and registered agents are visible on the public Corporate Records detail page. Filed documents are downloadable as PDFs.
Wisconsin DBA / assumed-name search
Wisconsin keeps its assumed-name filings in a statewide registry rather than at the county clerk. A DBA is only a trade name — it carries no owner and no status, which is why it belongs next to the entity record above, not instead of it.
Open the Wisconsin DBA search →✓ Wisconsin is covered
VerifySOS pulls the Wisconsin SOS record for you in real time. Owners/officers are included wherever Wisconsin publishes them on the free public record, on every plan. USDOT/FMCSA carrier records run alongside it, and you can add an OFAC screen.
Verify a Wisconsin business now
Paste a company name above — your first 3 searches are free. No signup, no card. Real Wisconsin SOS data, pulled in real time.
Or browse every state page to see what we cover.