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The Startup JudgeRankings of registered agents, LLC formation and foreign registration services in all 50 states.

Wisconsin ruling · LLC services

3 Best LLC Services in Wisconsin (2026)

The Startup Judge has ruled on LLC services in Wisconsin for 2026: Mainstay Filing ($199), WI Registered Agent.org ($199) and Wisconsin Registered Agent.co ($199). The ruling favors Mainstay Filing, since $199 a year buys the Wisconsin filing, registered agent service and the annual report, and renewal is $199.
The Startup Judge editorial team
No.1
Number one here

1. Mainstay Filing: best for the formation, the agent and the annual report under one charge

$199 a year plus the state fee ($329 due at checkout)

Score9.2out of 10

First place: Mainstay Filing. The Wisconsin formation, the registered agent and the annual report all fall under one $199 charge.

At renewal Mainstay prepares and files the annual report for you. Wisconsin charges $25 every year for it, due end of the calendar quarter containing the LLC's anniversary date, and lateness adds $25; Mainstay passes the state fee along at cost.

Its three-year total exceeds WI Registered Agent.org's by $200; the broader coverage outweighs that difference in our scoring.

In the price

  • Formation paperwork prepared and lodged
  • A full year as your registered agent
  • Annual report prepared and filed on your behalf
  • EIN application prepared

Why pick it

  • Wisconsin's fee is passed along at cost
  • Renews at $199 with nothing added
  • Covers the EIN application
  • One yearly charge of $199 that covers the annual report

Weak spots

  • Its agent charge after year one is $100 a year above WI Registered Agent.org's
Visit Mainstay FilingPartner link. We may earn money if you buy. The full ruling on Mainstay Filing
No.2
Best for a Wisconsin-only company

2. WI Registered Agent.org: best for a Wisconsin LLC that intends to stay put

$199 to form, then $99 a year for the agent, with the state fee extra

Score8.8out of 10

Second place: WI Registered Agent.org. The formation charge is $199 over the state fee, then $99 annually for the agent.

An in-state street address serves as the registered office, and papers served on the company are scanned into your online account.

The annual report lies outside its published prices, so you file it with Wisconsin every year.

In the price

  • Articles prepared and filed
  • A first year as your registered agent

Why pick it

  • Twelve months as your registered agent come with it
  • Year-two agent charge: $99
  • Formation at $199, with the filing fee extra

Weak spots

  • The annual report is not prepared for you
  • The EIN application carries a separate fee ($99)
No.3
Low renewal

3. Wisconsin Registered Agent.co: best for a filing made only in Wisconsin

$199 to form, then $99 a year for the agent, with the state fee extra

Score8.6out of 10

Third place: Wisconsin Registered Agent.co. The formation charge is $199 over the state fee, then $99 annually for the agent.

An in-state street address serves as the registered office, and papers served on the company are scanned into your online account.

The annual report lies outside its published prices, so you file it with Wisconsin every year.

No difference in price or features separates WI Registered Agent.org from Wisconsin Registered Agent.co; choose whichever you prefer.

In the price

  • Articles prepared and filed
  • Year-one registered agent service

Why pick it

  • Year-one registered agent service is included
  • Afterward, $99 a year keeps the agent
  • Forms the LLC for $199 and the state's fee

Weak spots

  • The annual report is not prepared for you
  • The EIN application carries a separate fee ($99)

The 3 rulings in brief

RankProviderRuling scoreService chargeYear twoSuited toLink
1Mainstay Filing9.2$199$199/yrThe formation, the agent and the annual report under one chargeVisit Mainstay FilingPartner link. We may earn money if you buy.
2WI Registered Agent.org8.8$199$99/yrA Wisconsin business holding down its costsVisit WI Registered Agent.orgPartner link. We may earn money if you buy.
3Wisconsin Registered Agent.co8.6$199$99/yrA Wisconsin business holding down its costsVisit Wisconsin Registered Agent.coPartner link. We may earn money if you buy.
Every mark out of 10 reflects the editorial team's reading of the criteria on How we rank, not any customer rating.

Wisconsin LLC service charges in 2026: year one, renewals and the three-year total

ProviderYear oneYear twoYear threeTotal over three yearsFiles the annual report
Mainstay Filing$199$199$199$597Yes
WI Registered Agent.org$199$99$99$397No
Wisconsin Registered Agent.co$199$99$99$397No
Each charge was taken from the provider's own pages on November 12, 2026. Wisconsin's $130 filing fee is payable in addition to every row below and is not in the totals.

Why Mainstay Filing is placed first

Two criteria carry 31% each in this ranking, charge over three years and work taken off the founder. Renewal conduct, fit with local rules and pricing in plain sight share 38%, and in Wisconsin the decisive one was work taken off the founder.

Wisconsin requires a report every year at a state fee of $25, with $25 added for lateness. Mainstay's price includes the filing and WI Registered Agent.org's does not, and that coverage outweighed WI Registered Agent.org's lower three-year cost.

Each criterion and its weight appear on How we rank.

The Wisconsin LLC filing fee and form (official figures)

To file the Articles of Organization - Limited Liability Company (Form 502) with the Department of Financial Institutions (DFI), budget $130. Each provider on this page adds that state fee at cost to its own charge.

Obligations after the Wisconsin filing is accepted

File the annual report every year; the date is end of the calendar quarter containing the LLC's anniversary date. $25 goes to the state. Filing late adds $25. Every LLC must name a registered agent with an in-state street address.

Questions on Wisconsin LLC services

What does it take, in dollars, to form an LLC in Wisconsin?

The state filing fee is $130; service charges run $199.

What is filed to bring the company into existence?

The Articles of Organization - Limited Liability Company (Form 502), lodged with the Department of Financial Institutions (DFI).

Does a Wisconsin LLC have to name a registered agent on its formation paperwork?

Yes. The company names a registered agent when it forms and keeps one on file afterward, with a street address in Wisconsin.

Which recurring filings follow formation?

One: the annual report, filed every year, due end of the calendar quarter containing the LLC's anniversary date, at a state fee of $25.

Does the quoted price cover the EIN application?

At Mainstay Filing it does; the application sits inside the yearly price. WI Registered Agent.org and Wisconsin Registered Agent.co add $99 for the application. Applying directly with the IRS carries no fee.

Which Wisconsin LLC service does the record favor?

Mainstay Filing, since a single yearly charge of $199 covers the Wisconsin formation, a year as your registered agent and the annual report, then renews at $199.

Keep reading

The record

  1. Wisconsin Department of Financial Institutions, Division of Corporate & Consumer Services, on the record as of August 2026
  2. Wisconsin Department of Financial Institutions, Division of Corporate & Consumer Services, on the record as of August 2026
  3. Wisconsin report due date, on the record as of August 2026
  4. Wis. Stat. § 183.0201, on the record as of August 2026
  5. Wisconsin formation fee: Filing fee, official source, on the record as of October 2026
  6. Wisconsin registered agent statute, on the record as of October 2026
  7. Exhibit: Mainstay Filing, Wisconsin service page, November 12, 2026
  8. Exhibit: WI Registered Agent.org, pricing and service pages, November 12, 2026
  9. Exhibit: Wisconsin Registered Agent.co, pricing and service pages, November 12, 2026