LLC Review Desk's 2026 picks for registered agents in Maine, favorite first, are ME Registered Agent.org ($99 a year), Mainstay Filing ($149 a year) and Maine Registered Agent.co ($99 a year). ME Registered Agent.org is our favorite, because it's $99 a year, and the price stays put at renewal, the smallest yearly price among these picks.
By the LLC Review Desk editorial team
Position 1
Our top pick
1. ME Registered Agent.org: best for the smallest yearly price on this list
$99 a year, the same each year
Our score
9.3out of 10
9.3 out of 10
Our favorite is ME Registered Agent.org, because it focuses on Maine at $99 a year and gives you an in-state street address for the registered office.
ME Registered Agent.org lists its own in-state street address as your company's registered office and scans served legal papers for you.
Over three years it costs less than Mainstay Filing, and cost is one of our two biggest criteria.
In the price
A state street address listed as your registered office
The company's served papers show up in your account as scans
3. Maine Registered Agent.co: best for Maine specialists
$99 a year, the same each year
Our score
8.8out of 10
8.8 out of 10
In third place is Maine Registered Agent.co, because it focuses on Maine at $99 a year and gives you an in-state street address for the registered office.
Maine Registered Agent.co takes care of the registered office with a street address in the state and scans everything served there.
Price and features don't set ME Registered Agent.org apart from Maine Registered Agent.co; pick the one you like.
In the price
An in-state address on the public record
Served documents get scanned and sit in your online account
Every score out of 10 is our editors' call, made with the weighted criteria on How we rank, not a customer rating.
What Maine registered agents cost in 2026: year one, renewals and three years
Service
First year
Second year
Third year
Three-year total
Same price when you renew
ME Registered Agent.org
$99
$99
$99
$297
Yes
Mainstay Filing
$149
$149
$149
$447
Yes
Maine Registered Agent.co
$99
$99
$99
$297
Yes
We took each price from the company's own pages on November 12, 2026. Maine's own fees stay the same no matter which agent you choose.
How we scored these
LLC Review Desk gives three-year cost 29% and filings in the price 29%, then divides 42% among renewal price, state fit and up-front totals. For Maine, it came down to three-year cost.
ME Registered Agent.org comes to $297 over three years, which is $150 less than Mainstay Filing. If you only need an agent in Maine, fifty-state reach doesn't help much, so the lower yearly price won.
You can read every criterion and weight on How we rank.
What Maine says about the registered agent (via Maine Secretary of State)
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: 5 M.R.S. § 105.
The Maine annual report: when and how much
Here's the schedule: the annual report is due every year in Maine, by June 1. It costs $85. If you're late, add $50. Reminders from the state go to your registered agent.
Your questions about Maine registered agents
Do I really need a registered agent for a Maine LLC?
You do. Maine won't accept an LLC without a registered agent who has a street address in the state, and that name goes on the public record.
What do Maine registered agents usually cost per year?
Plan on $99 to $149 a year, and each service keeps its price when you renew.
Can I be my own registered agent?
Sometimes, if you meet the state's rules. 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 do I have to send in the Maine annual report?
Mark June 1 on your calendar. The state's charge is $85, and sending it late tacks on $50.
Which registered agents did we review here?
ME Registered Agent.org ($99 a year), Mainstay Filing ($149 a year) and Maine Registered Agent.co ($99 a year), with our favorite first.
Who is the best registered agent for Maine?
ME Registered Agent.org, because you pay a flat $99 a year, and papers served on the company are scanned into your account.