Foreign registration ratings · Maine
3 Best Foreign Registration Services in Maine (2026)
1. ME Registered Agent.org: best for adding Maine and nothing else
Service fee $199, state fee on top; agent $99 a year after that
ME Registered Agent.org is rated first: the Maine registration at $199, first agent year included, then $99 yearly.
The plan lists an in-state street address as the registered office and scans papers served there into your account.
On three-year sums it comes out ahead of Mainstay Filing.
What you get
- Foreign registration done for you
- The first year as your registered agent
Pros
- Registered agent service for year one is included
- $99 per year to keep the agent
- A $199 registration amount before the state fee
Trade-offs
- Maine only; your home state needs its own agent
- EIN application billed at $99
2. Mainstay Filing: best for companies registered in more than one state
$199 plus the state fee ($499 due at checkout), then the agent at $149 a year after year one
Mainstay Filing is rated second: $199 plus state fees in any state, first-year registered agent service included.
Year one of agent service costs nothing, and afterward the agent is $149 a year in whichever state.
ME Registered Agent.org is $100 cheaper on the three-year sum, and that lowers Mainstay Filing's cost rating.
What you get
- The registration, prepared and filed for you
- A free first year of registered agent service
- Same-business-day scan and upload for any service of process, no fee
Pros
- $199 service fee, state fee separate
- The same amount in all fifty states
- Same-business-day scans of service of process, no fee
- Registered agent, no charge in year one
Trade-offs
- Agent renewal of $149 is $50 over ME Registered Agent.org
3. Maine Registered Agent.co: best for Maine registrations only
Service fee $199, state fee on top; agent $99 a year after that
Maine Registered Agent.co is rated third: the Maine registration at $199, first agent year included, then $99 yearly.
The plan lists an in-state street address as the registered office and scans papers served there into your account.
On amounts and features alone, ME Registered Agent.org and Maine Registered Agent.co are the same, which makes the order between them a close call.
What you get
- Foreign registration done for you
- First-year registered agent service
Pros
- $199 to register, state fee on top
- The first registered agent year is covered
- Year-two agent amount: $99
Trade-offs
- Maine only; your home state needs its own agent
- EIN application billed at $99
The 3 ratings summarized
| Line | Service | Rating | Service fee | Year two | Best for | Open |
|---|---|---|---|---|---|---|
| 1 | ME Registered Agent.org | 9.6 | $199 | $99/yr | The lowest agent renewal we rank here | Visit ME Registered Agent.orgPartner link. We may earn money if you buy. |
| 2 | Mainstay Filing | 9.1 | $199 | $149/yr | Companies that register in several states | Visit Mainstay FilingPartner link. We may earn money if you buy. |
| 3 | Maine Registered Agent.co | 9.0 | $199 | $99/yr | The lowest agent renewal we rank here | Visit Maine Registered Agent.coPartner link. We may earn money if you buy. |
Maine foreign registration service amounts for 2026: year one, renewal and three-year sum
| Service | Year one | Year two | Year three | Three-year sum | Agent paid for year one |
|---|---|---|---|---|---|
| ME Registered Agent.org | $199 | $99 | $99 | $397 | Included |
| Mainstay Filing | $199 | $149 | $149 | $497 | Free |
| Maine Registered Agent.co | $199 | $99 | $99 | $397 | Included |
How the lines were rated
Formation Rated puts 27% on cost over years one to three, 27% on inclusions per price and the other 46% on renewal price and terms, fit with state rules and price clarity. In Maine the order came down to cost over years one to three.
ME Registered Agent.org sums to $397 across three years, $100 below Mainstay Filing. Both services include year one of agent service, so the renewal amount decided the order.
Each criterion and its weight is listed on How we rank.
Maine foreign LLC registration: amount, form and office
A company from another state registers by lodging the Statement of Foreign Qualification to Conduct Activities (Form MLLC-12) with the Maine Secretary of State, Division of Corporations, UCC and Commissions; the state amount is $250. Maine also needs certificate of existence, issued inside 90 days of the filing.
Registration adds one recurring line: the Annual report for a foreign LLC ($150), due June 1.
Have these ready
- Certificate of existence, issued within 90 days before the filing.
- Home-state legal name, spelled exactly, and the formation date.
- An in-state registered agent; every service rated here can fill the role.
- $250 to the state, paid with the filing.
- The date of the Annual report for a foreign LLC and its $150 fee on your calendar.
What skipping Maine registration costs
An unregistered outside LLC may not sue in Maine courts until it registers (31 MRSA 1629(1)).
Maine foreign registration service: your questions
Is registration compulsory for an outside LLC doing business in Maine?
Yes, once it does business there. An unregistered company cannot bring suit in the state's courts.
What are the costs of foreign registration in Maine?
$250 to the state plus $199 to the service.
What form does Maine use to register a foreign LLC?
the Maine Secretary of State, Division of Corporations, UCC and Commissions handles it; the form's exact title is on the facts line above.
Must the filing include a home-state certificate for Maine?
Yes: certificate of existence, with an issue date within 90 days.
Must a registered agent stay on file after registering?
Yes. A registered agent with a street address in the state stays on record.
Which foreign registration service holds the top rating in Maine?
ME Registered Agent.org, as $199 on top of the state fee to register in Maine, agent at $99 afterward.
Source lines
- Maine Secretary of State (ledger date August 2026)
- Maine Secretary of State (ledger date August 2026)
- Maine report due date (ledger date August 2026)
- 31 M.R.S. sec. 1531 (ledger date August 2026)
- Maine formation fee: Filing fee, official source (ledger date October 2026)
- Maine registered agent statute (ledger date October 2026)
- Maine Secretary of State, foreign entities (ledger date October 2026)
- Form MLLC-12 (ledger date October 2026)
- 31 MRSA § 1622, foreign qualification (ledger date October 2026)
- 31 MRSA § 1623, activities that do not require qualification (ledger date October 2026)
- 31 MRSA § 1629, consequences of not qualifying (ledger date October 2026)
- ME Registered Agent.org, pricing and service pages: amounts read November 12, 2026
- Mainstay Filing, Maine service page: amounts read November 12, 2026
- Maine Registered Agent.co, pricing and service pages: amounts read November 12, 2026