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Researched and written by the Launchwise Review editorial team
Launchwise Review

Rankings of registered agents, LLC formation and foreign registration services in all 50 states.

Launch guide · Wisconsin · registered agent

3 Best Registered Agents in Wisconsin (2026)

Researched and written by the Launchwise Review editorial team
For a 2026 launch in Wisconsin, Launchwise Review grades registered agents this way: Mainstay Filing ($149 a year), WI Registered Agent.org ($99 a year) and Wisconsin Registered Agent.co ($99 a year). Mainstay Filing earns the top grade here: one agent plan at $149 a year that works in every state, renewing at $149.
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Number one here

1. Mainstay Filing: best for all fifty states

$149 a year, flat

Our mark 9.5 out of 10

Top grade, Mainstay Filing: the price stays $149 a year if you stay put or expand, and your first three government letters each year are scanned free.

Launching a new company? The $199 yearly package also takes care of the Wisconsin filing and the annual report.

It runs $150 above WI Registered Agent.org across three years; the extra paperwork it handles is worth that to us.

In the price

  • A registered office street address in any state you need
  • Papers served on the company scanned and uploaded the same business day, no charge
  • Your first three government letters each year, scanned free
  • Compliance reminders

Pros

  • Papers served on the company are scanned the same business day, free
  • $149 a year and it does not rise
  • Your first three government letters each year are scanned free
  • Works for LLCs, corporations, LPs, LLPs and nonprofits

Less good

  • The agent plan alone costs $50 a year more than WI Registered Agent.org
  • Report filing belongs to the formation package, not the agent plan
Visit Mainstay FilingPartner link. We may earn money if you buy.
Read the Mainstay Filing launch review
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Best local option

2. WI Registered Agent.org: best for the smallest annual bill we rank here

$99 a year, flat

Our mark 9.2 out of 10

Next up is WI Registered Agent.org: a Wisconsin specialist at $99 a year, supplying an in-state street address for the registered office.

With WI Registered Agent.org, the registered office sits at a real in-state address and served papers show up in your account as scans.

In the price

  • A state street address on file as the registered office
  • Scans of legal papers served on the company wait in your account

Pros

  • Forms LLCs too, with a free first agent year
  • Yearly price under Mainstay Filing's
  • You pay $99 a year, renewals included

Less good

  • You still file the annual report
  • Made for Wisconsin; other states need their own agent
Visit WI Registered Agent.orgPartner link. We may earn money if you buy.
Read the WI Registered Agent.org launch review
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Wisconsin only

3. Wisconsin Registered Agent.co: best for Wisconsin specialists

$99 a year, flat

Our mark 9.1 out of 10

Rounding out the list is Wisconsin Registered Agent.co: a Wisconsin specialist at $99 a year, supplying an in-state street address for the registered office.

Wisconsin Registered Agent.co puts its in-state street address on file as the company's registered office and scans served legal papers to you.

Nothing in the published price or features separates WI Registered Agent.org from Wisconsin Registered Agent.co; go with whichever you like.

In the price

  • The in-state address the state asks for
  • Papers served on the company are scanned and sent to your account

Pros

  • Forms LLCs too, with a free first agent year
  • You pay $99 a year, renewals included
  • Mainstay Filing charges more each year

Less good

  • You still file the annual report
  • Made for Wisconsin; other states need their own agent
Visit Wisconsin Registered Agent.coPartner link. We may earn money if you buy.
Read the Wisconsin Registered Agent.co launch review

The 3 grades at a glance

Place Company Launch grade Per year At renewal Best fit Go
1 Mainstay Filing 9.5 $149 $149/yr An agent for every state you may enter Visit Mainstay FilingPartner link. We may earn money if you buy.
2 WI Registered Agent.org 9.2 $99 $99/yr The lowest yearly price among the picks we rank here Visit WI Registered Agent.orgPartner link. We may earn money if you buy.
3 Wisconsin Registered Agent.co 9.1 $99 $99/yr The lowest yearly price among the picks we rank here Visit Wisconsin Registered Agent.coPartner link. We may earn money if you buy.
Each grade out of 10 reflects our editors' reading of the weighted criteria on How we rank, not a customer rating.

Wisconsin registered agent cost in 2026: first year, renewals, three-year total

Company Year 1 Year 2 Year 3 Three years, total Renewal price matches
Mainstay Filing $149 $149 $149 $447 Yes
WI Registered Agent.org $99 $99 $99 $297 Yes
Wisconsin Registered Agent.co $99 $99 $99 $297 Yes
Prices were copied from each company's own pages on November 12, 2026. Wisconsin's own fees do not change with your choice of agent.

What drove the grades

Launchwise Review puts 26% on cost to launch and stay and 26% on launch paperwork handled, then spreads 48% over renewal behavior, state match and price transparency. For Wisconsin, the call came down to launch paperwork handled.

Mainstay's plan covers more ground: papers served on the company are scanned the same business day at no charge, the price is the same in all fifty states, and three government letters a year are scanned free. WI Registered Agent.org costs less, and the grades are close.

Every criterion and weight is listed on How we rank.

Wisconsin registered agent rules, straight from the Department of Financial Institutions (DFI)

Every LLC must name a registered agent with an in-state street address. The address has to be an actual physical location with a street address in Wisconsin, not solely a P.O. box, mailbox service or answering service. Law behind it: Wis. Stat. § 183.0115.

Wisconsin annual report: date and fee

Put the annual report on your Wisconsin calendar every year. Count on a $25 state charge, with the deadline at end of the calendar quarter containing the LLC's anniversary date. Miss it and $25 gets added. Your registered agent receives the state's notices about it.

Quick answers about Wisconsin registered agents

Do I have to line up a registered agent before launching a Wisconsin LLC?

Yes. Put a registered agent with a physical Wisconsin address on the paperwork, because the state will not accept an LLC without one.

What should I budget each year for a Wisconsin registered agent?

Expect $99 to $149 a year, and each company keeps its price at renewal.

Could I just serve as my own registered agent?

Often yes, if you meet the state's conditions. A Wisconsin resident, or a business entity formed in Wisconsin or authorized there, whose business office is the registered office. The agent needs an email address and has to consent.

When does the Wisconsin annual report come due?

Put end of the calendar quarter containing the LLC's anniversary date on your calendar. The state asks $25, and a late filing adds $25.

Which registered agents are graded on this page?

Mainstay Filing ($149 a year), WI Registered Agent.org ($99 a year) and Wisconsin Registered Agent.co ($99 a year), top grade first.

Which Wisconsin registered agent should a new company pick first?

Mainstay Filing, because $149 a year, still $149 at renewal, and papers served on the company are scanned the same business day at no charge.

Read next

Sources and dates

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