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Filing Verdict

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

Foreign registration verdict · Missouri

3 Best Foreign Registration Services in Missouri (2026)

Filing Verdict's 2026 verdict on foreign registration services in Missouri: Missouri Registered Agent.co ($199), MO Registered Agent.org ($199) and Mainstay Filing ($199), in that order. Missouri Registered Agent.co takes first place: $199 plus the state fee, with a year of registered agent service included, then $99 a year for the agent.
The Filing Verdict editorial team
Our top pick in Missouri
Spot 1

1. Missouri Registered Agent.co: best for companies adding only Missouri

$199 service fee, state fee added; $99 a year from year two

9.1Editorial score
out of 10

Missouri Registered Agent.co wins here: the Missouri registration for $199 with the first agent year included, then $99 a year.

The plan gives the company an in-state street address as its registered office, and papers served on the company are scanned to your online account.

The three-year total beats Mainstay Filing's, and that cost advantage carries real weight in our method.

What you get

  • The registration filing
  • One year of registered agent service

What we like

  • First-year registered agent service comes with it
  • Then $99 a year for agent service
  • $199 to register, plus the state's fee

Cons

  • Covers Missouri only; your home state needs its own agent
  • The EIN application is billed separately ($99)
Visit Missouri Registered Agent.coPartner link. We may earn money if you buy. Our full Missouri Registered Agent.co verdict
Best local option
Spot 2

2. MO Registered Agent.org: best for Missouri registrations only

$199 on top of the state fee; the agent is $99 a year from year two

8.8Editorial score
out of 10

Second place goes to MO Registered Agent.org: the Missouri registration for $199 with the first agent year included, then $99 a year.

The plan gives the company an in-state street address as its registered office, and papers served on the company are scanned to your online account.

Nothing in the published prices or features divides Missouri Registered Agent.co from MO Registered Agent.org; pick either.

What you get

  • The registration filing
  • One year of registered agent service

What we like

  • A year of registered agent service is part of the price
  • $99 per year keeps the agent from year two
  • Service fee $199, state fee extra

Cons

  • Covers Missouri only; your home state needs its own agent
  • The EIN application is billed separately ($99)
Visit MO Registered Agent.orgPartner link. We may earn money if you buy. Our full MO Registered Agent.org verdict
Fifty-state coverage
Spot 3

3. Mainstay Filing: best for companies working in several states

Service fee $199, $304 due at checkout with the state fee; agent $149 yearly after year one

8.6Editorial score
out of 10

Third place goes to Mainstay Filing: $199 plus the state's own fee, with the registered agent free for the first year and one price in every state.

After the free first year the agent is $149 a year, whichever state you register in.

Over three years Missouri Registered Agent.co is $100 cheaper, which puts Mainstay Filing behind it on cost.

What you get

  • Foreign registration paperwork prepared and filed
  • A registered agent at no charge for the first year
  • Any legal papers served on the company are scanned the same business day for free

What we like

  • Registered agent service free in year one
  • One price in all fifty states
  • Service fee of $199, plus the state's fee
  • Same-business-day scans of served papers, free

Cons

  • After year one its agent runs $149 a year, $50 above Missouri Registered Agent.co
Visit Mainstay FilingPartner link. We may earn money if you buy. Our full Mainstay Filing verdict

The 3 verdicts at a glance

No.ServiceVerdict scoreService feeYear twoBest forVisit
1Missouri Registered Agent.co9.1$199$99/yrThe lowest agent renewal here Visit Missouri Registered Agent.coPartner link. We may earn money if you buy.
2MO Registered Agent.org8.8$199$99/yrThe lowest agent renewal here Visit MO Registered Agent.orgPartner link. We may earn money if you buy.
3Mainstay Filing8.6$199$149/yrCompanies registered in several states Visit Mainstay FilingPartner link. We may earn money if you buy.
The marks out of 10 are editorial: Filing Verdict sets them from the criteria on How we rank, and customers do not rate anything here.

Missouri foreign registration service prices for 2026: year one, renewals and three years

ServiceYear 1Year 2Year 3Total, 3 yearsAgent covered in year one
Missouri Registered Agent.co$199$99$99$397Included
MO Registered Agent.org$199$99$99$397Included
Mainstay Filing$199$149$149$497Free
Prices were read from each company's own pages on November 12, 2026. Missouri's $105 registration fee goes on top of every row and is not counted in these totals.

What settled the order

Filing Verdict gives total over three years and paperwork the price handles 35% each, and renewal behavior, match to the state and up-front pricing split the rest. In Missouri the order was settled by total over three years.

Missouri Registered Agent.co totals $397 over three years, $100 under Mainstay Filing. Year one is covered by both services, so the renewal price decided the order.

The full list of criteria and weights is on How we rank.

Missouri foreign LLC registration: the fee, the form and the filing office

The company registers with the Missouri Secretary of State, Corporations Division by filing the Application for Registration of a Foreign Limited Liability Company (Form LLC 4). The state fee is $105. Missouri also asks for certificate of good standing/existence from the home state, issued within 60 days of filing.

Missouri has no yearly report for foreign LLCs.

Before you file: a checklist

  • Certificate of good standing/existence from the home state, issued within 60 days before you file.
  • The exact legal name from the home state, and the date the company was formed there.
  • A registered agent with a street address in the state; each service on this page can act in that role.
  • The $105 state fee, paid with the filing.

What skipping Missouri registration can cost

Until it registers, an out-of-state LLC cannot bring suit in Missouri courts (RSMo 347.163.1). Contracts it signs stay valid (RSMo 347.163.2).

Missouri foreign registration service: questions answered

Does Missouri require an out-of-state LLC to register?

Yes, once it transacts business there. Until it registers, it cannot bring suit in the state's courts.

What does foreign registration cost in Missouri?

The state fee is $105, and the service fee is $199.

Which form does Missouri use for foreign registration?

Use the Application for Registration of a Foreign Limited Liability Company (Form LLC 4), filed with the Missouri Secretary of State, Corporations Division.

Does Missouri want a certificate from my home state?

Yes. It asks for certificate of good standing/existence from the home state, issued within 60 days of filing.

Is a registered agent required once I have registered?

Yes. The company still needs a registered agent here, with a street address in the state.

Which foreign registration service is the best pick in Missouri?

Missouri Registered Agent.co, because $199 over the state fee to register in Missouri, with the agent renewing at $99.

More from us

Sources and dates

  1. RSMo 347.037, confirmed August 2026
  2. Missouri formation fee: Filing fee, official source, confirmed October 2026
  3. Missouri registered agent statute, confirmed October 2026
  4. Missouri Secretary of State, Corporations, confirmed October 2026
  5. Form LLC 4, foreign LLC registration, confirmed October 2026
  6. RSMo 347.153, registration of foreign LLCs, confirmed October 2026
  7. RSMo 347.163, transacting business and penalties, confirmed October 2026
  8. Missouri Department of Revenue, business registration, confirmed October 2026
  9. Checked November 12, 2026: Missouri Registered Agent.co, pricing and service pages
  10. Checked November 12, 2026: MO Registered Agent.org, pricing and service pages
  11. Checked November 12, 2026: Mainstay Filing, Missouri service page