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Formation Rated

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

Registered agent ratings · Maine

3 Best Registered Agents in Maine (2026)

From the Formation Rated editorial team
Formation Rated's 2026 ratings for registered agents in Maine, highest first: Mainstay Filing ($149 a year), ME Registered Agent.org ($99 a year) and Maine Registered Agent.co ($99 a year). Mainstay Filing holds the top rating: $149 a year, level on renewal, with papers served on the company scanned the same business day at no fee.
Position1
Our top pick

1. Mainstay Filing: best for any state

$149 a year, level on renewal

Our score9.4out of 10

Mainstay Filing is rated first: $149 for a plan that applies in every state, $149 on renewal.

Company not formed yet? Mainstay's $199-a-year package puts the Maine filing and the annual report on one line.

On three-year sums Mainstay is $150 above ME Registered Agent.org; the wider coverage justifies that gap in the rating.

What you get

  • A registered office address in whichever state you need
  • Papers served on the company scanned and uploaded within the business day, free of charge
  • The first three government mailings a year, scanned at no charge
  • Compliance reminders

Pros

  • Same-business-day scans of service of process, no fee
  • $149 a year, level on renewal
  • Government mail scanned free, first three pieces a year
  • Accepts LLCs, corporations, LPs, LLPs and nonprofits

Trade-offs

  • Agent alone is $50 a year above ME Registered Agent.org
  • Filing the annual report requires the formation package
Visit Mainstay FilingPartner link. We may earn money if you buy. The Mainstay Filing entry
Position2
Best local option

2. ME Registered Agent.org: best for the lowest yearly amount on this list

$99 a year, level on renewal

Our score9.2out of 10

ME Registered Agent.org is rated second: $99 a year, flat, with online scans of legal papers served.

ME Registered Agent.org provides the registered office address inside the state and uploads scans of whatever is served there.

What you get

  • A street address in the state for the registered office
  • Online scans of whatever is served on the company

Pros

  • Less per year than Mainstay Filing
  • The first agent year is included when it forms your LLC
  • $99 per year and the same at renewal

Trade-offs

  • The annual report remains your own filing
  • Maine only; other states need another agent
Visit ME Registered Agent.orgPartner link. We may earn money if you buy. The ME Registered Agent.org entry
Position3
Maine-focused

3. Maine Registered Agent.co: best for businesses in Maine

$99 a year, level on renewal

Our score9.0out of 10

Maine Registered Agent.co is rated third: $99 a year, flat, with online scans of legal papers served.

Maine Registered Agent.co supplies the state street address for the registered office and posts scans of served papers to your account.

Nothing in the published amounts or features separates ME Registered Agent.org from Maine Registered Agent.co; take either.

What you get

  • The in-state address the state requires on file
  • Each paper served on the company is scanned into your account

Pros

  • Less per year than Mainstay Filing
  • $99 a year, level on renewal
  • The first agent year is included when it forms your LLC

Trade-offs

  • The annual report remains your own filing
  • Maine only; other states need another agent
Visit Maine Registered Agent.coPartner link. We may earn money if you buy. The Maine Registered Agent.co entry

The 3 ratings summarized

LineServiceRatingYearly amountRenewal amountBest forOpen
1 Mainstay Filing 9.4 $149 $149/yr A single agent in any state Visit Mainstay FilingPartner link. We may earn money if you buy.
2 ME Registered Agent.org 9.2 $99 $99/yr The lowest yearly price we rank here Visit ME Registered Agent.orgPartner link. We may earn money if you buy.
3 Maine Registered Agent.co 9.0 $99 $99/yr The lowest yearly price we rank here Visit Maine Registered Agent.coPartner link. We may earn money if you buy.
Every rating out of 10 here is an editorial judgment from the criteria explained on How we rank, not an average of customer ratings.

Maine registered agent amounts for 2026: year one, renewal and three-year sum

ServiceYear oneYear twoYear threeThree-year sumSame amount on renewal
Mainstay Filing$149$149$149$447Yes
ME Registered Agent.org$99$99$99$297Yes
Maine Registered Agent.co$99$99$99$297Yes
Each amount was read from the company's own site on November 12, 2026. Maine's own fees are identical for every agent named.

How the lines were rated

Weights: 27% cost over years one to three, 27% inclusions per price, 46% shared by renewal price and terms, fit with state rules and price clarity. Inclusions per price decided Maine.

Mainstay's agent plan rates higher on coverage: served papers are scanned the same business day at no fee, one amount applies in all fifty states and three government mailings a year are scanned free. ME Registered Agent.org is the cheaper line, and the gap is narrow.

Each criterion and its weight is listed on How we rank.

Maine registered agent requirements per 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. Authority cited: 5 M.R.S. § 105.

The Maine annual report: amount, date and agent

Maine LLCs owe the annual report every year, due June 1. Amount: $85. Late filing adds $50. The state sends notices about it to your registered agent.

Maine registered agent: your questions

Does a Maine LLC need to appoint a registered agent?

It does. Maine treats a registered agent as a standing requirement, and the agent needs a street address within the state.

What is the yearly price of a registered agent in Maine?

Yearly amounts run $99 to $149, and each holds on renewal.

Is it permitted to be your own registered agent?

Yes, when the state's conditions are met. 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.

On what date is the Maine annual report due?

Due June 1. Fee: $85. Late penalty: $50.

Which registered agents are rated on this page?

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

Which Maine registered agent has the best value rating?

Mainstay Filing, as $149 yearly for an agent that stays with the company if it moves or expands, plus free scans of the first three government mailings each year.

Source lines

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