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3 Best Foreign Registration Services (2026), Plainly Answered

If you need a foreign registration service in 2026, our national order is Mainstay Filing ($199), Nebraska Registered Agent.co ($199) and Maine Registered Agent.co ($199). Mainstay Filing tops the list. Plainly, one $199 service fee applies anywhere, and the first agent year is free.

By the Plain Charter editorial team ·

In plain terms

Works everywhere
Mainstay Filing
Nebraska businesses
Nebraska Registered Agent.co
Maine businesses
Maine Registered Agent.co

The picks

Ranked by how we choose. Each state pick is the choice for businesses in its own state.
1First choice

1. Mainstay Filing: best for one price nationwide

$199 to start, $149 yearly

Why Mainstay Filing first? Because one $199 service fee applies anywhere, and the first agent year is free.

It is $100 above Nebraska Registered Agent.co over three years and the only pick that works anywhere.

The price covers

  • Registration filing
  • Same service fee in every state

Upsides

  • One $199 price anywhere
  • Then $149 yearly

What to weigh

  • Costs more than the state picks
Visit Mainstay FilingPartner link. We may earn money if you buy.
2Nebraska pick

2. Nebraska Registered Agent.co: best for Nebraska businesses

$199 to start, $99 yearly

In second place, Nebraska Registered Agent.co: it registers an LLC in Nebraska for $199 plus the state fee.

Nebraska is its only state, so a second state means a second provider.

The price covers

  • Nebraska registration filing
  • Agent service in Nebraska, year one

Upsides

  • Less per year after year one
  • Then $99 yearly

What to weigh

  • Other states need another provider
  • Report filing is on you
Visit Nebraska Registered Agent.coPartner link. We may earn money if you buy.
3Maine pick

3. Maine Registered Agent.co: best for Maine businesses

$199 to start, $99 yearly

Number 3 is Maine Registered Agent.co, since it registers an LLC in Maine for $199 plus the state fee.

Maine is its only state, so a second state means a second provider.

The price covers

  • Maine registration filing
  • Agent service in Maine, year one

Upsides

  • Less per year after year one
  • Then $99 yearly

What to weigh

  • Other states need another provider
  • Report filing is on you
Visit Maine Registered Agent.coPartner link. We may earn money if you buy.

Side by side

#ServiceFirst yearRenewalThree yearsWhere it works
1Mainstay Filing$199$149/yr$497NationwideVisit Mainstay FilingPartner link. We may earn money if you buy.
2Nebraska Registered Agent.co$199$99/yr$397NebraskaVisit Nebraska Registered Agent.coPartner link. We may earn money if you buy.
3Maine Registered Agent.co$199$99/yr$397MaineVisit Maine Registered Agent.coPartner link. We may earn money if you buy.
Company prices as of November 12, 2026, before state fees.

Questions and answers

One provider for all fifty states?

Yes: Mainstay Filing charges one price in all fifty states; the other two serve one state each.

A growing company avoids juggling providers this way.

Why are local services on a national list?

A company that only files in one state can save with them. Nebraska Registered Agent.co fits Nebraska businesses; Maine Registered Agent.co for Maine businesses.

What decided the ranking?

A national list measures nationwide reach, and only one pick has it.

We weigh three-year cost and what the price covers most, then plain pricing, renewal terms and where it works. Read our criteria

Quick questions

What foreign registration service should I pick in 2026?

In order: Mainstay Filing, Nebraska Registered Agent.co and Maine Registered Agent.co.

What will a foreign registration service cost me?

From $199 to $199, plus the state fee among our picks.

What is the three-year cost?

Mainstay Filing $497, Nebraska Registered Agent.co $397 and Maine Registered Agent.co $397, before state fees.

How do I check my state?

The state pages list the official fees and rules for each state, with sources.

What are the prices based on?

From each company's own pricing pages on November 12, 2026.

Cited sources

  1. Mainstay Filing: pricing page, read November 12, 2026
  2. Nebraska Registered Agent.co: pricing page, read November 12, 2026
  3. Maine Registered Agent.co: pricing page, read November 12, 2026