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Business Basics LabLLC paperwork, measured state by state.

National list

3 Best Foreign Registration Services (2026)

Our 2026 nationwide recommendations, best first: Mainstay Filing ($199), Colorado Registered Agent.co ($199) and Alaska Registered Agent.co ($199). Mainstay Filing leads because $199 placed on each state's own fee, with the first agent year included.

Recorded by the Business Basics Lab staff ·

Best reading

Who we would engage

Measured on the protocol. The two state services suit businesses based in their own states.
Best overall

1. Mainstay Filing: best for one price nationwide

$199 plus the state's own fee, $149 a year thereafter

Mainstay Filing heads the list. The reason: $199 placed on each state's own fee, with the first agent year included.

The additional $100 over three years, set against Colorado Registered Agent.co, buys nationwide reach.

What the price performs

  • The registration is filed for you
  • No agent fee in year one
  • A single service fee in every state

Measured strengths

  • The price does not change from state to state
  • Year two: $149

Measured limits

  • Costs more than a single-state plan
Visit Mainstay FilingPartner link. We may earn money if you buy.
Colorado pick

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

$199 plus the state's own fee, $99 a year thereafter

Colorado Registered Agent.co, number 2: registering an out-of-state LLC with Colorado measures $199 beyond the state fee.

Owners rooted in Colorado get a lower price here.

What the price performs

  • The Colorado registration, filed for you
  • Agent service in Colorado for one year

Measured strengths

  • A $99 renewal
  • Year two: $99

Measured limits

  • Nothing outside Colorado
  • No report filing
Visit Colorado Registered Agent.coPartner link. We may earn money if you buy.
Alaska pick

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

$199 plus the state's own fee, $99 a year thereafter

Alaska Registered Agent.co takes third place. The reason: registering an out-of-state LLC with Alaska measures $199 beyond the state fee.

Owners rooted in Alaska get a lower price here.

What the price performs

  • The Alaska registration, filed for you
  • Agent service in Alaska for one year

Measured strengths

  • A $99 renewal
  • Year two: $99

Measured limits

  • Nothing outside Alaska
  • No report filing
Visit Alaska Registered Agent.coPartner link. We may earn money if you buy.

Compare the services

#ServiceFirst yearFrom year twoThree-year total
1Mainstay Filing$199$149/yr$497Visit Mainstay FilingPartner link. We may earn money if you buy.
2Colorado Registered Agent.co$199$99/yr$397Visit Colorado Registered Agent.coPartner link. We may earn money if you buy.
3Alaska Registered Agent.co$199$99/yr$397Visit Alaska Registered Agent.coPartner link. We may earn money if you buy.
Prices observed November 13, 2026; each service adds the state fee at cost.

What matters most

Compare the price for years two and three, not only year one, and note which state procedures the price takes off your list. If growth beyond one state is likely, coverage deserves substantial weight.

The reasoning

The heaviest criteria are three-year cost and the share of the state paperwork the price covers. A national list serves owners in every state, so the provider that works for all of them reads highest. Places two and three go to Colorado Registered Agent.co and Alaska Registered Agent.co, which cost less if your company is based in Colorado or Alaska.

Sheets for all 50 states

The state sheets treat registering a foreign LLC using each state's official forms and fees. Registering in another state: all 50 states.

Review questions

What are the best foreign registration services in 2026?

Mainstay Filing, Colorado Registered Agent.co and Alaska Registered Agent.co, ranked in that order.

What does a foreign registration service cost?

$199 to $199 before state fees on this list.

Can one service cover every state?

Yes: Mainstay Filing is priced identically in all fifty states, whereas the second and third picks serve only their home states.

Why are one-state services on a national list?

They offer a better price to a company that stays put. Colorado Registered Agent.co is our pick for Colorado businesses; Alaska Registered Agent.co for Alaska businesses.

How did you grade them?

The how-we-grade page lists the five criteria and their weights.

Where do I learn the steps for my state?

In the state sheets: registering in another state, one sheet for each state.

Specimens and records

  1. Entry November 13, 2026: Mainstay Filing, pricing page
  2. Entry November 13, 2026: Colorado Registered Agent.co, pricing page
  3. Entry November 13, 2026: Alaska Registered Agent.co, pricing page