3 Best Registered Agents in Wisconsin (2026): The Straight Story
If you need registered agents in Wisconsin in 2026, here's the order we'd go in: WI Registered Agent.org ($99 a year), Wisconsin Registered Agent.co ($99 a year) and Mainstay Filing ($149 a year). Year one's $99 to $149. Three years come to $297 to $447.
Straight from the LLC Straight Talk editorial team
The short of it
The short of it
Do you have to?
Yes, it's the law
What the law calls it
Registered agent
Going rate
$99 to $149 per year
Who we'd use
WI Registered Agent.org, Wisconsin Registered Agent.co then Mainstay Filing
Wisconsin: our ranking
The order comes from our five tests: three-year cost first, then what the price covers.
#1Who we'd call first
1. WI Registered Agent.org: best for an LLC that'll stay in the state
$99 a year, then $99
You get an agent in the state for $99 a year. That's why WI Registered Agent.org is first.
It beats Mainstay Filing on three-year cost, and cost is the biggest test.
What you get
In-state address
Legal papers scanned online
Pluses
Smaller yearly bill than the national pick
$99 a year, flat at renewal
What's not
No coverage outside the state
The annual report stays on your plate
#2Wisconsin specialist
2. Wisconsin Registered Agent.co: best for another in-state choice
$99 a year, then $99
Wisconsin Registered Agent.co takes second place: you get an agent in the state for $99 a year.
Its prices match WI Registered Agent.org exactly, so the order between them's a close call.
What you get
In-state address
Legal papers scanned online
Pluses
$99 a year, flat at renewal
Smaller yearly bill than the national pick
What's not
No coverage outside the state
The annual report stays on your plate
#3Works in all 50 states
3. Mainstay Filing: best for one price in every state
$149 a year, then $149
$149 a year goes with you when the company adds a state. That puts Mainstay Filing third.
A $150 three-year gap to WI Registered Agent.org explains the lower spot.
What you get
An in-state street address on record
Three government letters a year scanned at no cost
Not only for LLCs: corporations, LPs, LLPs and nonprofits too
An in-state street address on record; three government letters a year scanned at no cost; Not only for LLCs: corporations, LPs, LLPs and nonprofits too
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.
A qualifying owner can serve for free.
What's the going rate for an agent?
You're looking at $99 to $149 a year for the services we'd use, $297 to $447 across three years.
No state fee depends on your choice of agent.
Why does the state want one?
It's the LLC's contact in Wisconsin for legal papers and state letters.
There's one filing that keeps coming back: the annual report, yearly, for $25. In the state's own words it's due end of the calendar quarter containing the LLC's anniversary date.
The last row is our math, not the state's: filing fee, plus the reports in years two and three, plus any minimum tax. If a cost has no fixed amount, like a newspaper notice, it's explained above and left out.
More questions
Can I name myself?
Yes, if your address and status match the rule. Lots of owners still pay a service to keep their address private.
Which addresses count?
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.
What's the three-year damage for each?
WI Registered Agent.org comes out at $297; Wisconsin Registered Agent.co comes out at $297; Mainstay Filing comes out at $447
Where do these numbers come from?
State fees come from Wisconsin's official documents, and service fees come from each company's own price page. Both are dated here.
Do I have to use a service?
No. You can file with the state yourself. A service saves you time and can be your agent, but nothing makes you hire one.
Who should I use for a registered agent in Wisconsin?
WI Registered Agent.org, because the service is $99 a year and puts a street address on file. After that, Wisconsin Registered Agent.co and Mainstay Filing.