Skip to content
Formation Scorecard

Foreign registration scorecard · Wisconsin

3 Best Foreign Registration Services in Wisconsin (2026)

On the Formation Scorecard 2026 scorecard for foreign registration services in Wisconsin the order reads Mainstay Filing ($199), Wisconsin Registered Agent.co ($199) and WI Registered Agent.org ($199). Mainstay Filing posts the top score: $199 on top of the state's fee, with a free first year as your registered agent and the same price in every state.
Researched and written by the Formation Scorecard editorial team
Rank #1 Best here

1. Mainstay Filing: best for companies spread across states

9.1 Editor score out of 10
$199 service fee, $299 due at checkout including the state fee; agent $149 yearly from year two

Mainstay Filing leads the card: it files the Wisconsin registration for $199 and acts as your registered agent, free for year one and $149 a year after.

The agent is free in year one and $149 a year after that, wherever the company registers.

Mainstay's three-year total sits $100 above Wisconsin Registered Agent.co's, which the extra coverage earns back in our scoring.

What you get

  • Registration prepared and submitted
  • The first registered agent year at no charge
  • No-cost scan and upload of served papers within the same business day

Strengths

  • $199 service fee, with the state fee on top
  • Same price across all fifty states
  • Served papers scanned on the day they arrive, free
  • Registered agent free for year one

Watch for

  • Agent renewal of $149 is $50 more than Wisconsin Registered Agent.co charges
Visit Mainstay FilingPartner link. We may earn money if you buy. Mainstay Filing: the full write-up
Rank #2 Best value here

2. Wisconsin Registered Agent.co: best for companies that add just Wisconsin

8.6 Editor score out of 10
$199 service fee plus the state fee; agent $99 yearly from year two

Wisconsin Registered Agent.co takes second spot: the Wisconsin registration at $199, first agent year included, then $99 a year.

The plan puts the company at an in-state street address and scans papers served on it to your online account.

What you get

  • Foreign registration done for you
  • Year-one registered agent service included

Strengths

  • Agent at $99 a year from year two
  • A $199 service fee before the state's
  • First-year registered agent service included

Watch for

  • Limited to Wisconsin; your home state still needs an agent
  • $99 extra for the EIN application
Visit Wisconsin Registered Agent.coPartner link. We may earn money if you buy. Wisconsin Registered Agent.co: the full write-up
Rank #3 Best for a Wisconsin-only company

3. WI Registered Agent.org: best for registrations in Wisconsin only

8.5 Editor score out of 10
$199 on top of the state fee, then the agent at $99 a year from year two

WI Registered Agent.org takes third spot: the Wisconsin registration at $199, first agent year included, then $99 a year.

The plan puts the company at an in-state street address and scans papers served on it to your online account.

The published prices and features do not separate Wisconsin Registered Agent.co from WI Registered Agent.org; choose whichever you like.

What you get

  • Foreign registration done for you
  • Year-one registered agent service included

Strengths

  • $99 per year for the agent after the first
  • Files the registration for $199 plus the state fee
  • Registered agent service for year one is in the price

Watch for

  • Limited to Wisconsin; your home state still needs an agent
  • $99 extra for the EIN application
Visit WI Registered Agent.orgPartner link. We may earn money if you buy. WI Registered Agent.org: the full write-up

The 3 entries on one card

Place Service Card score Service fee Year two Best for Go
1 Mainstay Filing 9.1 $199 $149/yr Companies spread over several states Visit Mainstay FilingPartner link. We may earn money if you buy.
2 Wisconsin Registered Agent.co 8.6 $199 $99/yr The lowest agent renewal we rank here Visit Wisconsin Registered Agent.coPartner link. We may earn money if you buy.
3 WI Registered Agent.org 8.5 $199 $99/yr The lowest agent renewal we rank here Visit WI Registered Agent.orgPartner link. We may earn money if you buy.

The marks out of 10 come from our editors and follow the weights on How we rank; none of them is a customer rating.

Wisconsin foreign registration service cost in 2026: first year, renewal and the three-year tally

Service First year Second year Third year Three-year tally Agent paid in year one
Mainstay Filing $199 $149 $149 $497 Free
Wisconsin Registered Agent.co $199 $99 $99 $397 Included
WI Registered Agent.org $199 $99 $99 $397 Included

Each price comes from the company's own site, read on November 12, 2026. Add Wisconsin's $100 registration fee to each row; the tally above leaves it out.

What broke the tie

Points here: 25% for cost across three years, 25% for coverage of the price and 50% across renewal terms, state-by-state fit and pricing clarity. Wisconsin came down to coverage of the price.

A foreign registration touches two states, so a single provider at one price in both earned the most coverage points, ahead of Wisconsin Registered Agent.co.

Every criterion and weight appears on How we rank.

Foreign LLC registration in Wisconsin: fee, form and filing office

An outside company registers by sending the Foreign Registration Statement, Limited Liability Company (Form 521) to the Wisconsin Department of Financial Institutions, Division of Corporate and Consumer Services, with a $100 state fee.

Once registered, the company files the annual report ($65), due March 31.

Gather these before filing

  • The company name exactly as the home state has it, plus the date it was formed.
  • An in-state registered agent; any service on this card can fill that role.
  • The state fee of $100, sent in with the filing.
  • A calendar date for the annual report and its $65 fee.

The price of ignoring Wisconsin registration

Its contracts remain valid (Wis. Stat. 183.0902(3)).

Wisconsin foreign registration service: quick questions

Does Wisconsin make an outside LLC register before operating?

Yes, when the company does business there.

What will foreign registration run in Wisconsin?

Expect $100 for the state plus $199 for the service.

What is the registration form called in Wisconsin?

The form goes to the Wisconsin Department of Financial Institutions, Division of Corporate and Consumer Services; its exact name is in the facts above.

Does a registered company still need a registered agent?

Yes, a registered agent with an in-state street address has to stay on file.

Which foreign registration services sit on this card?

Mainstay Filing ($199), Wisconsin Registered Agent.co ($199) and WI Registered Agent.org ($199), top to bottom.

Which foreign registration service leads the card for Wisconsin?

Mainstay Filing, since $199 plus state fees in any state, year-one registered agent service included.

More from us

Where the figures come from

  1. Wisconsin Department of Financial Institutions, Division of Corporate & Consumer Services, as of August 2026
  2. Wisconsin Department of Financial Institutions, Division of Corporate & Consumer Services, as of August 2026
  3. Wisconsin report due date, as of August 2026
  4. Wis. Stat. § 183.0201, as of August 2026
  5. Wisconsin formation fee: Filing fee, official source, as of October 2026
  6. Wisconsin registered agent statute, as of October 2026
  7. DFI Form 521, foreign registration statement for an LLC, as of October 2026
  8. DFI file online, as of October 2026
  9. Wis. Stat. ss. 183.0902 and 183.0905, as of October 2026
  10. DFI Form 524, withdrawal of registration, as of October 2026
  11. Wis. Stat. 183.0902, registration to do business in this state, as of November 2026
  12. Read on November 12, 2026: Wisconsin service page for Mainstay Filing
  13. Read on November 12, 2026: pricing and service pages for Wisconsin Registered Agent.co
  14. Read on November 12, 2026: pricing and service pages for WI Registered Agent.org