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The Formation Desk

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

Registered agent picks · Maine

3 Best Registered Agents in Maine (2026)

The The Formation Desk call for registered agents in Maine in 2026: ME Registered Agent.org ($99 a year), Maine Registered Agent.co ($99 a year) and Mainstay Filing ($149 a year), in that order. ME Registered Agent.org takes the call: a Maine specialist at $99 a year, with an in-state street address as the registered office.
Written by The Formation Desk editorial team
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Top pick on this page

1. ME Registered Agent.org: best for the lowest price per year on this list

$99 a year, and it holds on renewal

Editorial score 9.4 out of 10

The desk picks ME Registered Agent.org: $99 a year flat, with scans of served legal papers sent to your account.

ME Registered Agent.org takes the registered office role, using an in-state address and scanning what is served there.

Add up three years and it undercuts Mainstay Filing, and cost is one of our two heaviest criteria.

In the price

  • The in-state address the state asks you to file
  • You get online scans of any papers served on the company

Strengths

  • A $99 plan with no renewal hike
  • The first agent year comes with LLC formation
  • Cheaper each year than Mainstay Filing

Cons

  • The annual report is your job
  • Maine only; you need another agent elsewhere
Visit ME Registered Agent.orgPartner link. We may earn money if you buy. ME Registered Agent.org up close
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Best value here

2. Maine Registered Agent.co: best for Maine companies

$99 a year, and it holds on renewal

Editorial score 8.9 out of 10

Runner-up, Maine Registered Agent.co: $99 a year flat, with scans of served legal papers sent to your account.

Maine Registered Agent.co puts an in-state street address on file for the company and scans served legal papers into your account.

The published prices and features do not separate ME Registered Agent.org from Maine Registered Agent.co; take whichever you like.

In the price

  • The in-state address the state asks you to file
  • You get online scans of any papers served on the company

Strengths

  • The first agent year comes with LLC formation
  • $99 a year and it holds on renewal
  • Cheaper each year than Mainstay Filing

Cons

  • The annual report is your job
  • Maine only; you need another agent elsewhere
Visit Maine Registered Agent.coPartner link. We may earn money if you buy. Maine Registered Agent.co up close
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Best for multi-state companies

3. Mainstay Filing: best for every state

$149 a year, and it holds on renewal

Editorial score 8.6 out of 10

Third, Mainstay Filing: $149 a year for an agent that goes wherever the company does, plus the first three government mailings each year scanned free.

Haven't formed yet? Mainstay's $199-a-year package handles the Maine filing and the annual report.

ME Registered Agent.org undercuts Mainstay Filing by $150 over three years, and that is why Mainstay sits lower on cost.

In the price

  • An in-state street address on the public record
  • Free scans of service of process, uploaded the same business day
  • Your first three government mailings each year, scanned free
  • Compliance reminders

Strengths

  • Free scans of served papers on the same business day
  • First three government mailings each year, scanned free
  • Works for LLCs, corporations, LPs, LLPs and nonprofits alike
  • $149 a year and it holds on renewal

Cons

  • $50 a year more than ME Registered Agent.org for agent service alone
  • On the agent plan you send in your own annual report
Visit Mainstay FilingPartner link. We may earn money if you buy. Mainstay Filing up close

The desk's 3 picks in brief

Pick Service Desk score Price a year Renewal Good for Visit
1 ME Registered Agent.org 9.4 $99 $99/yr The lowest yearly price we rank here Visit ME Registered Agent.orgPartner link. We may earn money if you buy.
2 Maine Registered Agent.co 8.9 $99 $99/yr The lowest yearly price we rank here Visit Maine Registered Agent.coPartner link. We may earn money if you buy.
3 Mainstay Filing 8.6 $149 $149/yr One agent that covers every state Visit Mainstay FilingPartner link. We may earn money if you buy.

Our editors assign each score out of 10 using the criteria on How we rank. Customer ratings play no part.

What a Maine registered agent costs in 2026: year one, renewal and the three-year bill

Service Year one Year two Year three Bill over three years Price holds on renewal
ME Registered Agent.org $99 $99 $99 $297 Yes
Maine Registered Agent.co $99 $99 $99 $297 Yes
Mainstay Filing $149 $149 $149 $447 Yes

Every price here was read off the company's own pages on November 12, 2026. Maine charges the same state fees whichever agent you name.

How the desk made the call

Spend over three years made the call in Maine. The desk weighs spend over three years and work the price removes at 33% each and gives what renewal looks like, fit with the state and plain price display the remaining 34%.

ME Registered Agent.org comes to $297 over three years, $150 less than Mainstay Filing. If Maine is your only state, fifty-state coverage does little for you, and the lower yearly price wins.

The full criteria and weights are on How we rank.

Maine registered agent rules straight from Maine Secretary of State (official)

Every LLC must name a registered agent with an in-state street address. A noncommercial agent lists a physical street address in Maine, not a P.O. box. Commercial agents keep their address on file with the state. The law behind it: 5 M.R.S. § 105.

Maine's annual report: what it costs, when it is due, who gets the notice

Maine LLCs send in the annual report every year, due June 1. The state's fee is $85. Send it late and $50 gets added. Notices about it land with your registered agent.

Maine registered agent: reader questions

Do you need a registered agent to run a Maine LLC?

You do. Maine wants a registered agent on file for every LLC, and the agent must have a street address in the state.

What should you expect to pay a Maine registered agent?

Plan on $99 to $149 a year, and the price holds when it renews.

Could you serve as your own registered agent?

You can if the state's rules allow it. A commercial registered agent listed with the Secretary of State, or a noncommercial agent: an individual or entity serving as agent in Maine, or the holder of a named position in the company.

When does the Maine annual report have to go in?

Get it in by June 1. The state's cut is $85. Miss the date and it costs $50 more.

Which registered agents did the desk rank here?

ME Registered Agent.org ($99 a year), Maine Registered Agent.co ($99 a year) and Mainstay Filing ($149 a year), best pick first.

Who is our pick for registered agent in Maine?

ME Registered Agent.org, since $99 a year, holding on renewal, the lowest yearly price on this list.

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Where the numbers came from

  1. Maine Secretary of State, last checked August 2026
  2. Maine Secretary of State, last checked August 2026
  3. Maine report due date, last checked August 2026
  4. 31 M.R.S. sec. 1531, last checked August 2026
  5. Maine formation fee: Filing fee, official source, last checked October 2026
  6. Maine registered agent statute, last checked October 2026
  7. ME Registered Agent.org: pricing and service pages, as of November 12, 2026
  8. Maine Registered Agent.co: pricing and service pages, as of November 12, 2026
  9. Mainstay Filing: Maine service page, as of November 12, 2026