Wisconsin business entity search
Wisconsin's Corporate Records Search lists tradenames (DBAs), sole proprietors and LLC members among the information the department does not hold.
Check a name against Wisconsin's naming rules
- Type a business name above and press Check name. Its ending and any restricted words show here.
Get the matching domain name
Type a business name to check its .com, .net, .org and .us.
"Not registered" is the registry's answer at this moment. It is not a promise that the name can be bought at the standard price, since some unregistered names are reserved or sold at a premium. The buttons open Spaceship, a domain registrar, where the price is shown.
See an example check
Example: a check of "Blue Heron Bakery LLC" against Wisconsin's rules.
- Ends with "LLC", an ending Wisconsin lists for an LLC.
- No ending from Wisconsin's list for a corporation was found at the end of this name.
This checks the ending and the restricted words Wisconsin publishes. It does not tell you whether another company already holds the name. Only the state's own search can show that.
A private website, not a government site. Every state entry links to that state's official search.
Wisconsin's own search
- Run by
- Wisconsin Department of Financial Institutions
- Called
- Corporate Records Search
- Search by
- entity names, registered agent names
The state's search is the record that counts. State Business Entity Search is not a government site.
The Department of Financial Institutions keeps the register, and articles of organization cost $130 under Wisconsin Statutes 183.0122.
Wisconsin filing fees for a new business name
| Filing | State fee | Details |
|---|---|---|
| Form an LLC in Wisconsin | $130 | Articles of organization. Source: Wisconsin Statutes chapter 183, Uniform Limited Liability Company Law. |
| Form a corporation in Wisconsin | $100 | Articles of incorporation. Source: Wisconsin Statutes chapter 180, Business Corporations. |
| Reserve a name in Wisconsin | $15 | Held for 120 days. Source: Wisconsin Statutes chapter 183, Uniform Limited Liability Company Law. |
| Annual report for a Wisconsin LLC | $25 | Every year. In the calendar quarter in which the anniversary of the LLC's registration falls: March 31, June 30, September 30 or December 31. Source: Wisconsin Statutes chapter 183, Uniform Limited Liability Company Law. |
Name endings Wisconsin accepts
For an LLC (Wisconsin Statutes 183.0112)
For a corporation (Wisconsin Statutes 180.0401)
How the Wisconsin Corporate Records Search works
Wisconsin names are checked in the Corporate Records Search, which the Department of Financial Institutions runs. Its FAQ calls the system the Corporate Registration Information System, or CRIS. A result can show the legal entity name, entity type, registered agent, registered office, status and the year of the latest annual report.
The department's search tips say to type the entity name without an ending such as LLC or Corp. A common word such as "american" can match hundreds of records, and the system will not return all of them. Add words to narrow the search.
The Advanced Search offers three match choices: the exact phrase, all of the words, or names that start with the words. It also searches registered agent names, and those are entered exactly as they appear on the filed document.
What the Wisconsin register leaves out
The search lists what the department does not record: FEIN, LLC member names, telephone numbers, sole proprietors, tradenames (DBAs), trademarks and owners. A clear result therefore says nothing about a trade name held by a sole proprietor.
Phone checks carry the same limit. The Corporation Bureau will search for you, but the department calls verbal results tentative because the pool of names changes daily.
What makes a Wisconsin LLC name distinguishable
Wisconsin Statutes 183.0112 requires an LLC name to be distinguishable on the department's records. The comparison covers existing entities, limited liability partnerships, names registered to do business in the state, and reserved or registered names. Words that show the type of entity, such as Inc., Ltd. and LLC, are not taken into account. The same goes for a variation of those abbreviations that differs only in capitalization or punctuation.
A company may still apply for authorization to use a name that is not distinguishable. The application costs $10. The department grants it when the holder of the existing name consents in writing and promises to change its own name. A final court judgment establishing the applicant's right to the name also works.
An LLC name may not state or imply a purpose regulated under another Wisconsin statute. The exception covers an LLC whose purpose that statute does not prohibit and which accepts all of its limitations.
Reserving a Wisconsin LLC name
Wisconsin Statutes 183.0113 lets a person reserve a name for a 120-day period, and the reservation can be renewed from time to time. The fee is $15 for the application and $15 for each renewal under section 183.0122.
Reserved names show up in the register itself, since the Advanced Search entity types include Short Term Name Reservation and Long Term Name Reservation/Registration.
What Wisconsin charges after formation
Section 183.0122 sets articles of organization at $130, which matches the online fee on the department's schedule. The same schedule lists $170 for a paper filing. Expedited service adds $100 per transaction, and the department acts on it by the close of business the following business day.
Every LLC files an annual report, which costs $25 under the statute and $40 on paper. The report falls due in the calendar quarter of the anniversary of registration, in each year after the registration year. An LLC that misses it shows as delinquent until it files a current report and pays the back fees.
Checking and claiming a name in Wisconsin
- Search the name in the Corporate Records Search without its ending, then add or drop words as the search tips suggest.
- Open the Advanced Search and set the entity status and name filters to include entities no longer in existence and old names.
- Reserve the name for $15 if you need 120 days to finish the paperwork.
- File the articles of organization for $130 online, using a name with an ending from the endings each state accepts.
- Wait for written confirmation that the filing was accepted, since the department says no name should be assumed usable until then.
The LLC cost calculator adds these fees to the rest of a formation budget. A trade name used by a sole proprietor is covered in the fictitious business name guide.
Wisconsin name search questions
Does the Wisconsin Corporate Records Search show tradenames?
No. The department lists tradenames (DBAs) among the information it does not hold in the search. A sole proprietor registers a business name by filing a registration of Tradename with the department.
How long does a Wisconsin LLC name reservation last?
120 days under Wisconsin Statutes 183.0113, and the reservation can be renewed from time to time. The application and each renewal cost $15 under section 183.0122.
How reliable is a phone check of a Wisconsin business name?
The department calls verbal results tentative. Its FAQ says the pool of names changes daily and its operators do not have all information in front of them.
When is the Wisconsin LLC annual report due?
In the calendar quarter of the anniversary of registration, so the due date is March 31, June 30, September 30 or December 31. The first report falls in the year after the LLC registers.
Can a Wisconsin LLC name use Ltd. or Co.?
Yes, inside the required phrase. Section 183.0112 lets Limited be abbreviated as Ltd. and company as Co. The name must still contain limited liability company, limited company, LLC or LC.
After the Wisconsin name check
- LLC cost calculatorWisconsin filing and report fees added up
- Business name rules by stateWisconsin's endings beside other states
- Oklahoma business entity searchOklahoma Secretary of State
- Arkansas business entity searchArkansas Secretary of State
- Nebraska business entity searchNebraska Secretary of State
- Company domain nameWhat a domain is, who registers it, how renewal works and what the official pages say about email.
- LLC name examplesInvented names that meet, and miss, the ending rules in Delaware, Florida, Texas and California.
8 official Wisconsin sources
- Wisconsin Department of Financial Institutions, Search Corporate Records, retrieved November 13, 2026.
- Wisconsin Department of Financial Institutions, Advanced Search, retrieved November 13, 2026.
- Wisconsin Department of Financial Institutions, Search Tips, retrieved November 13, 2026.
- Wisconsin Department of Financial Institutions, business entity FAQ, retrieved November 13, 2026.
- Wisconsin Department of Financial Institutions, corporation fees, retrieved November 13, 2026.
- Wisconsin Department of Financial Institutions, Business Entity Data Services, retrieved November 13, 2026.
- Wisconsin Statutes chapter 183, Uniform Limited Liability Company Law, retrieved November 13, 2026.
- Wisconsin Statutes chapter 180, Business Corporations, retrieved November 13, 2026.