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1. Mainstay Filing: best for one price across the map
Top of the tally
$199 + state fee, then $149/yr
- First year
- $199
- Later years
- $149/yr
- Three-year tally
- $497
Mainstay Filing tops the whole-country list since the fee is $199 over the state fee in any state, with the first agent year free.
The $100 gap to New Mexico Registered Agent.co over three years buys coverage in every state.
Included lines
- Registration filing
- undefined, year one free
- Same service fee in every state
Gains
- The same $199 anywhere
- $149 in year two and after
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2. New Mexico Registered Agent.co: best for New Mexico companies
New Mexico line
$199 + state fee, then $99/yr
- First year
- $199
- Later years
- $99/yr
- Three-year tally
- $397
Second line: New Mexico Registered Agent.co, because it files New Mexico registrations for $199 and bills $99 a year for the agent after.
Companies based in New Mexico get the lower total here.
Included lines
- New Mexico registration filing
- Agent service in New Mexico, year one
Gains
- Renews lower, at $99
- $99 in year two and after
Minus column
- Covers just New Mexico
- No report filing
3
3. MD Registered Agent.org: best for Maryland companies
Maryland line
$199 + state fee, then $99/yr
- First year
- $199
- Later years
- $99/yr
- Three-year tally
- $397
MD Registered Agent.org is third: it files Maryland registrations for $199 and bills $99 a year for the agent after.
Companies based in Maryland get the lower total here.
Included lines
- Maryland registration filing
- Agent service in Maryland, year one
Gains
- Renews lower, at $99
- $99 in year two and after
Minus column
- Covers just Maryland
- No report filing
Running tally by year
Prices as of November 13, 2026; each column carries one more renewal. State fees are extra. Within ten years no line passes another.
What the columns mean
The first column is what you pay up front. The next is the yearly price after that. The three-year total adds two renewals to year one. A company that could expand should treat reach across states as a cost saver.
Why this order
Cost over three years and paperwork covered carry the most weight, followed by three smaller columns. A national tally rewards reach, and only one row works in all fifty states. New Mexico Registered Agent.co and MD Registered Agent.org are the lower lines for New Mexico and Maryland companies.
Questions about these totals
Which foreign registration services rank best in 2026?
In order: Mainstay Filing, New Mexico Registered Agent.co and MD Registered Agent.org.
What does a foreign registration service cost?
Year one books at $199 to $199, plus the state fee on this table.
What do three years add up to?
At year three the totals stand at Mainstay Filing $497, New Mexico Registered Agent.co $397 and MD Registered Agent.org $397 without state fees.
Can one service cover every state?
Mainstay Filing covers every state; rows two and three do not.
Why do one-state services appear on a national tally?
Staying put? A local row can come out lower. New Mexico Registered Agent.co fits New Mexico companies, and MD Registered Agent.org fits Maryland companies.
How are the rows sorted?
Weighted columns: cost over three years, paperwork per dollar, renewal, break-even and visible pricing.
Record of sources
- Mainstay Filing pricing page (ledger date November 13, 2026)
- New Mexico Registered Agent.co pricing page (ledger date November 13, 2026)
- MD Registered Agent.org pricing page (ledger date November 13, 2026)