Skip to content
Filing Verdict

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

Foreign registration verdict · Maine

3 Best Foreign Registration Services in Maine (2026)

Filing Verdict's 2026 verdict on foreign registration services in Maine: Maine Registered Agent.co ($199), ME Registered Agent.org ($199) and Mainstay Filing ($199), in that order. Maine Registered Agent.co takes first place: $199 plus the state fee, with a year of registered agent service included, then $99 a year for the agent.
The Filing Verdict editorial team
Our top pick
Spot 1

1. Maine Registered Agent.co: best for companies adding only Maine

Service fee $199, state fee extra; agent $99 yearly after year one

9.5Editorial score
out of 10

Maine Registered Agent.co wins here: the Maine registration for $199 with the first agent year included, then $99 a year.

The plan gives the company an in-state street address as its registered office, and papers served on the company are scanned to your online account.

Three-year cost is where it pulls ahead of Mainstay Filing.

What you get

  • Filing with the state
  • Year-one registered agent service

What we like

  • Service fee $199, state fee extra
  • Includes the first year as your registered agent
  • Then $99 a year for agent service

Cons

  • Covers Maine only; your home state needs its own agent
  • The EIN application is billed separately ($99)
Visit Maine Registered Agent.coPartner link. We may earn money if you buy. Our full Maine Registered Agent.co verdict
Lower renewal than Mainstay
Spot 2

2. ME Registered Agent.org: best for Maine registrations only

Service fee $199, state fee extra; agent $99 yearly after year one

9.3Editorial score
out of 10

Second place goes to ME Registered Agent.org: the Maine registration for $199 with the first agent year included, then $99 a year.

The plan gives the company an in-state street address as its registered office, and papers served on the company are scanned to your online account.

On price and features Maine Registered Agent.co and ME Registered Agent.org match line for line, which makes this a close call between safe choices.

What you get

  • Filing with the state
  • Year-one registered agent service

What we like

  • Year-two agent cost of $99
  • Files the registration for $199 plus fees
  • The first registered agent year is included

Cons

  • Covers Maine only; your home state needs its own agent
  • The EIN application is billed separately ($99)
Visit ME Registered Agent.orgPartner link. We may earn money if you buy. Our full ME Registered Agent.org verdict
Same price in every state
Spot 3

3. Mainstay Filing: best for companies working in several states

$199 on top of the state fee ($499 due at checkout); the agent is $149 a year from year two

9.2Editorial score
out of 10

Third place goes to Mainstay Filing: $199 plus the state's own fee, with the registered agent free for the first year and one price in every state.

The agent renews at $149 a year after the free first year, in this state or any other.

Over three years Maine Registered Agent.co is $100 cheaper, which puts Mainstay Filing behind it on cost.

What you get

  • The registration, prepared and submitted for you
  • Free registered agent service for the first year
  • Papers served on the company scanned and uploaded the same business day, free

What we like

  • Service fee of $199, plus the state's fee
  • One price in all fifty states
  • Registered agent service free in year one
  • Same-business-day scans of served papers, free

Cons

  • After year one its agent runs $149 a year, $50 above Maine Registered Agent.co
Visit Mainstay FilingPartner link. We may earn money if you buy. Our full Mainstay Filing verdict

The 3 verdicts at a glance

No.ServiceVerdict scoreService feeYear twoBest forVisit
1Maine Registered Agent.co9.5$199$99/yrThe lowest agent renewal here Visit Maine Registered Agent.coPartner link. We may earn money if you buy.
2ME Registered Agent.org9.3$199$99/yrThe lowest agent renewal here Visit ME Registered Agent.orgPartner link. We may earn money if you buy.
3Mainstay Filing9.2$199$149/yrCompanies registered in several states Visit Mainstay FilingPartner link. We may earn money if you buy.
Scores come from Filing Verdict's editors, out of 10, using the criteria explained on How we rank; they are not customer ratings.

Maine foreign registration service prices for 2026: year one, renewals and three years

ServiceYear 1Year 2Year 3Total, 3 yearsAgent covered in year one
Maine Registered Agent.co$199$99$99$397Included
ME Registered Agent.org$199$99$99$397Included
Mainstay Filing$199$149$149$497Free
Prices were read from each company's own pages on November 12, 2026. Maine's $250 registration fee goes on top of every row and is not counted in these totals.

Why Maine Registered Agent.co comes first

Two criteria lead Filing Verdict's method at 35% apiece: total over three years and paperwork the price handles. Renewal behavior, match to the state and up-front pricing share the other 30%, and Maine came down to total over three years.

Maine Registered Agent.co totals $397 over three years, $100 under Mainstay Filing. Year one is covered by both services, so the renewal price decided the order.

The full list of criteria and weights is on How we rank.

Maine foreign LLC registration: the fee, the form and the filing office

The company registers with the Maine Secretary of State, Division of Corporations, UCC and Commissions by filing the Statement of Foreign Qualification to Conduct Activities (Form MLLC-12). The state fee is $250. Maine also asks for certificate of existence, issued within 90 days of filing.

Afterwards the company files the Annual report for a foreign LLC ($150), due June 1.

Before you file: a checklist

  • Certificate of existence, issued within 90 days before you file.
  • The exact legal name from the home state, and the date the company was formed there.
  • A registered agent with a street address in the state; each service on this page can act in that role.
  • The $250 state fee, paid with the filing.
  • A calendar entry for the Annual report for a foreign LLC and its $150 fee.

What skipping Maine registration can cost

Until it registers, an out-of-state LLC cannot bring suit in Maine courts (31 MRSA 1629(1)).

Maine foreign registration service: questions answered

Does Maine require an out-of-state LLC to register?

Yes, once it transacts business there. Until it registers, it cannot bring suit in the state's courts.

What does foreign registration cost in Maine?

The state fee is $250, and the service fee is $199.

Which form does Maine use for foreign registration?

Use the Statement of Foreign Qualification to Conduct Activities (Form MLLC-12), filed with the Maine Secretary of State, Division of Corporations, UCC and Commissions.

Does Maine want a certificate from my home state?

Yes. It asks for certificate of existence, issued within 90 days of filing.

Is a registered agent required once I have registered?

Yes. The company still needs a registered agent here, with a street address in the state.

Which foreign registration service is the best pick in Maine?

Maine Registered Agent.co, because $199 over the state fee to register in Maine, with the agent renewing at $99.

Read next

Sources and dates

  1. Maine Secretary of State, confirmed August 2026
  2. Maine Secretary of State, confirmed August 2026
  3. Maine report due date, confirmed August 2026
  4. 31 M.R.S. sec. 1531, confirmed August 2026
  5. Maine formation fee: Filing fee, official source, confirmed October 2026
  6. Maine registered agent statute, confirmed October 2026
  7. Maine Secretary of State, foreign entities, confirmed October 2026
  8. Form MLLC-12, confirmed October 2026
  9. 31 MRSA § 1622, foreign qualification, confirmed October 2026
  10. 31 MRSA § 1623, activities that do not require qualification, confirmed October 2026
  11. 31 MRSA § 1629, consequences of not qualifying, confirmed October 2026
  12. Checked November 12, 2026: Maine Registered Agent.co, pricing and service pages
  13. Checked November 12, 2026: ME Registered Agent.org, pricing and service pages
  14. Checked November 12, 2026: Mainstay Filing, Maine service page