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The Founders Review

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

Foreign registration · New Mexico

3 Best Foreign Registration Services in New Mexico (2026)

The best foreign registration services in New Mexico for 2026 are New Mexico Registered Agent.co ($199), Mainstay Filing ($199) and NM Registered Agent.org ($199), in that order. First place goes to New Mexico Registered Agent.co: $199 plus the state fee with a year of registered agent service included, then $99 a year for the agent.

Written by The Founders Review editorial team

Place1
Our top pick

New Mexico Registered Agent.co

1. New Mexico Registered Agent.co: best for companies adding only New Mexico

$199 plus the state fee; agent $99 a year from year two
Our mark9.2out of 10

New Mexico Registered Agent.co is number one here: the New Mexico registration filed for $199, the first agent year included and $99 a year after.

It provides the in-state registered office address and posts scans of served legal papers online.

Cost decides it: over three years it comes in under Mainstay Filing.

What you get

  • New Mexico registration filed for you
  • A year of registered agent service

Why pick it

  • $199 to register
  • A year of registered agent service included
  • Agent renews at $99

Less good

  • Covers New Mexico only
  • Charges $99 for the EIN application
Place2
Best for expanding companies

Mainstay Filing

2. Mainstay Filing: best for multi-state companies

$199 plus the state fee ($299 due today); agent $149 a year from year two
Our mark8.8out of 10

Number 2 is Mainstay Filing: $199 over the state fee, the first registered agent year included, then $149 a year.

The agent renews at $149, the same price wherever the company registers.

It costs $100 more than New Mexico Registered Agent.co over three years, which is why it sits below it on our cost score.

What you get

  • Registration prepared and filed
  • Your registered agent, free for the first year
  • Service of process scanned the same business day, no fee

Why pick it

  • Service fee $199 plus state fees
  • Service of process scanned the same business day, no fee
  • Registered agent free for the first year
  • One price in every state

Less good

  • Renewal costs $50 more than New Mexico Registered Agent.co
Visit Mainstay FilingPartner link. We may earn money if you buy.Review: Mainstay Filing
Place3
Best for a New Mexico-only company

NM Registered Agent.org

3. NM Registered Agent.org: best for a New Mexico-only registration

$199 plus the state fee; agent $99 a year from year two
Our mark8.6out of 10

Number 3 is NM Registered Agent.org: the New Mexico registration filed for $199, the first agent year included and $99 a year after.

It provides the in-state registered office address and posts scans of served legal papers online.

Same prices and features as New Mexico Registered Agent.co; pick whichever you prefer.

What you get

  • New Mexico registration filed for you
  • A year of registered agent service

Why pick it

  • A year of registered agent service included
  • $199 to register
  • Agent renews at $99

Less good

  • Covers New Mexico only
  • Charges $99 for the EIN application
Visit NM Registered Agent.orgPartner link. We may earn money if you buy.Review: NM Registered Agent.org

The 3 picks side by side

RankServiceOur scoreService feeYear twoBest forLink
1New Mexico Registered Agent.co9.2$199$99/yrLowest agent renewal on this listVisit New Mexico Registered Agent.coPartner link. We may earn money if you buy.
2Mainstay Filing8.8$199$149/yrCompanies registered in several statesVisit Mainstay FilingPartner link. We may earn money if you buy.
3NM Registered Agent.org8.6$199$99/yrLowest agent renewal on this listVisit NM Registered Agent.orgPartner link. We may earn money if you buy.

The Founders Review sets these scores itself from the five criteria on our method page; they are not user ratings.

Annual and renewal prices in New Mexico, 2026

ServiceYear oneYear twoYear threeThree-year totalAgent in year one
New Mexico Registered Agent.co$199$99$99$397Included
Mainstay Filing$199$149$149$497Free
NM Registered Agent.org$199$99$99$397Included

Published prices, read November 12, 2026 on each company's site. Every service adds the $100 state fee, so it is left out above.

How the order was decided

The Founders Review weighs five things, led by three-year cost and what one price covers at 30% each. For New Mexico, three-year cost is what separated first place from second.

Three-year cost: $397 with New Mexico Registered Agent.co, saving $100 against Mainstay Filing. The renewal price after year one was the difference.

The full method is on How we rank.

New Mexico foreign LLC registration (2026)

A company formed in another state registers with the New Mexico Secretary of State, Business Services Division by filing the Foreign LLC Certificate of Registration. The state fee is $100. New Mexico also wants certificate of good standing and compliance, dated within 30 days.

New Mexico has no yearly report for foreign LLCs.

Before you file

  • Certificate of good standing and compliance, issued no more than 30 days before you file.
  • The company's home-state name and formation date.
  • A registered agent with a street address in the state; every service ranked here names itself in that role.
  • The $100 state fee, paid with the filing.

Risks of skipping registration

Its contracts stay valid (NMSA 1978, section 53-19-53(B)). Back fees for the time it operated without registering are due as well.

Common New Mexico questions

Do I need to register my out-of-state LLC in New Mexico?

Yes, if the company transacts business there.

How much does foreign registration cost in New Mexico?

$100 to the state, plus $199 for a service.

Do I need a certificate from my home state?

Yes: certificate of good standing and compliance, dated within 30 days of filing.

Do I need a registered agent after registering?

Yes. Every LLC must name a registered agent with an in-state street address.

Which foreign registration services do you rank here?

New Mexico Registered Agent.co ($199), Mainstay Filing ($199) and NM Registered Agent.org ($199), ranked in that order.

Which foreign registration service is best in New Mexico?

We rank New Mexico Registered Agent.co first for $199 over the state fee to register in New Mexico, with the agent at $99 a year after that.

More from us

Sources

  1. NMSA 1978, § 53-19-7 and § 53-19-8 (checked August 2026): nmonesource.com/nmos/nmsa/en/4400/1/document.do
  2. New Mexico Secretary of State, Business Services (checked October 2026): www.sos.nm.gov/business-services
  3. SOS Enterprise online filing portal (checked October 2026): enterprise.sos.nm.gov
  4. Business Online Filing Help (checked October 2026): api.realfile.rtsclients.com/PublicFiles/ee3072ab0d43456cb15a51f7d82c77
  5. Taxation and Revenue Department, who must register (checked October 2026): www.tax.newmexico.gov/businesses/who-must-register-a-business
  6. New Mexico Statutes Annotated 1978, Limited Liability Company Act (checked November 2026): nmonesource.com/nmos/nmsa/en/item/4400/index.do
  7. Read November 12, 2026: New Mexico Registered Agent.co pricing and service pages
  8. Read November 12, 2026: Mainstay Filing New Mexico service page
  9. Read November 12, 2026: NM Registered Agent.org pricing and service pages