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Formation Rated

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

LLC service ratings · Maine

3 Best LLC Services in Maine (2026)

From the Formation Rated editorial team
Formation Rated's 2026 ratings for LLC services in Maine, highest first: Maine Registered Agent.co ($199), Mainstay Filing ($199) and ME Registered Agent.org ($199). Maine Registered Agent.co holds the top rating: $199 plus the Maine filing fee, first-year registered agent service included, then $99 a year.
Position1
Number one here

1. Maine Registered Agent.co: best for a Maine LLC that will not expand

$199 to form, $99 a year for the agent, state fee extra

Our score9.3out of 10

Maine Registered Agent.co is rated first: Maine formation at $199 beyond the state's amount, first agent year included, then $99 a year for the agent.

The plan lists an in-state street address as the registered office and scans papers served there into your account.

The annual report sits outside its published prices; you file it with Maine yourself every year.

Over three years it sums lower than Mainstay Filing, and cost is one of our two heaviest criteria.

What you get

  • Articles prepared and filed
  • A year of registered agent service at the start

Pros

  • First-year registered agent service is included
  • Agent line of $99 from year two
  • $199 to form, state fee on top

Trade-offs

  • The annual report is not on its price list
  • EIN application billed at $99
Visit Maine Registered Agent.coPartner link. We may earn money if you buy. The Maine Registered Agent.co entry
Position2
Report filing included

2. Mainstay Filing: best for formation, agent and annual report on a single line

$199 a year plus the state fee, $424 due at checkout

Our score9.0out of 10

Mainstay Filing is rated second: $199 a year includes the formation filing, the registered agent and the annual report; renewal is $199.

Mainstay files the annual report at each renewal. The state's line is $85 every year, due June 1, with $50 added if late, and Mainstay passes that fee on at cost.

Maine Registered Agent.co is $200 cheaper on the three-year sum, and that lowers Mainstay Filing's cost rating.

What you get

  • LLC formation filed on your behalf
  • Registered agent service for the whole year
  • Annual report prepared and filed
  • EIN application

Pros

  • Maine's fee goes through at cost
  • One $199 yearly line that includes the annual report
  • EIN application is in the package
  • $199 on renewal with no extras

Trade-offs

  • Agent renews $100 a year above Maine Registered Agent.co
Visit Mainstay FilingPartner link. We may earn money if you buy. The Mainstay Filing entry
Position3
Best local option

3. ME Registered Agent.org: best for staying local in Maine

$199 to form, $99 a year for the agent, state fee extra

Our score8.8out of 10

ME Registered Agent.org is rated third: Maine formation at $199 beyond the state's amount, first agent year included, then $99 a year for the agent.

The plan lists an in-state street address as the registered office and scans papers served there into your account.

The annual report sits outside its published prices; you file it with Maine yourself every year.

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

What you get

  • Articles prepared and filed
  • Registered agent service for year one

Pros

  • $199 service fee and the filing fee
  • A year of registered agent service is in the price
  • $99 per year to keep the agent

Trade-offs

  • The annual report is not on its price list
  • EIN application billed at $99
Visit ME Registered Agent.orgPartner link. We may earn money if you buy. The ME Registered Agent.org entry

The 3 ratings summarized

LineServiceRatingService feeYear twoBest forOpen
1 Maine Registered Agent.co 9.3 $199 $99/yr A Maine-only LLC counting every dollar Visit Maine Registered Agent.coPartner link. We may earn money if you buy.
2 Mainstay Filing 9.0 $199 $199/yr Formation, agent and annual report on one line Visit Mainstay FilingPartner link. We may earn money if you buy.
3 ME Registered Agent.org 8.8 $199 $99/yr A Maine-only LLC counting every dollar Visit ME Registered Agent.orgPartner 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 LLC service amounts for 2026: year one, renewal and three-year sum

ServiceYear oneYear twoYear threeThree-year sumAnnual report filed by them
Maine Registered Agent.co$199$99$99$397No
Mainstay Filing$199$199$199$597Yes
ME Registered Agent.org$199$99$99$397No
Each amount was read from the company's own site on November 12, 2026. Maine's $175 filing fee is paid in addition to each line and sits outside these sums.

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. Cost over years one to three decided Maine.

Maine Registered Agent.co sums to $397 across three years, $200 below Mainstay Filing. Mainstay would also file the annual report, but an owner can file it directly for the state fee alone, so the lower amount decided the rating.

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

Maine LLC formation: official amount and form

Filing the Certificate of Formation (Form MLLC-6) costs $175, paid to the Maine Secretary of State. Each service here passes that amount through at cost, added to its own.

State processing time: 10 to 15 business days (home page).

Ongoing items for a Maine LLC

Plan on the annual report every year; the date is June 1. State amount: $85. Late: $50 extra. Every LLC must name a registered agent with an in-state street address.

Maine LLC service: your questions

What are the total costs to form an LLC in Maine?

$175 to the state plus $199 to the service.

What is the formation document called?

It is the Certificate of Formation (Form MLLC-6), lodged with the Maine Secretary of State.

How long does Maine take to process a new LLC?

The filing office reports: 10 to 15 business days (home page).

Is a registered agent a requirement for a Maine LLC?

Yes. Maine wants a registered agent on file at all times, with a physical street address in the state.

Which filings recur each year for a Maine LLC?

One line item: the annual report, every year, due June 1, fee $85.

Is the EIN application a separate charge?

Mainstay Filing includes it in the yearly price. Maine Registered Agent.co and ME Registered Agent.org charge $99 separately. At the IRS the EIN itself costs nothing.

Which LLC service holds the top rating in Maine?

Maine Registered Agent.co, as $199 to form, state fee on top, then $99 a year for the agent.

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. Processing time, official source (ledger date October 2026)
  8. Maine Registered Agent.co, pricing and service pages: amounts read November 12, 2026
  9. Mainstay Filing, Maine service page: amounts read November 12, 2026
  10. ME Registered Agent.org, pricing and service pages: amounts read November 12, 2026