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Formation Scorecard

Registered agent scorecard · Missouri

3 Best Registered Agents in Missouri (2026)

On the Formation Scorecard 2026 scorecard for registered agents in Missouri the order reads Mainstay Filing ($149 a year), MO Registered Agent.org ($99 a year) and Missouri Registered Agent.co ($99 a year). Mainstay Filing posts the top score: $149 a year with no bump at renewal, and papers served on the company are scanned the same business day for free.
Researched and written by the Formation Scorecard editorial team
Rank #1 Best here

1. Mainstay Filing: best for every state

9.3 Editor score out of 10
$149 a year, no change on renewal

Mainstay Filing leads the card: a $149 agent plan that travels to any state, renewing at $149.

Mainstay's three-year total sits $150 above MO Registered Agent.org's, which the extra coverage earns back in our scoring.

What you get

  • An in-state street address on the public record
  • No-cost scan and upload of served papers within the same business day
  • The first three government mailings each year scanned at no cost
  • Compliance reminders

Strengths

  • Fits LLCs, corporations, LPs, LLPs and nonprofits
  • First three government mailings each year scanned free
  • $149 a year with no renewal step-up
  • Served papers scanned on the day they arrive, free

Watch for

  • Agent service alone costs $50 a year more than MO Registered Agent.org
  • Reports are filed only under the formation package
Visit Mainstay FilingPartner link. We may earn money if you buy. Mainstay Filing: the full write-up
Rank #2 Best yearly price

2. MO Registered Agent.org: best for the lowest yearly rate on this list

9.0 Editor score out of 10
$99 a year, no change on renewal

MO Registered Agent.org takes second spot: $99 a year, flat, with scans of served legal papers delivered online.

MO Registered Agent.org gives the company a registered office street address in the state and scans anything served there to your online account.

What you get

  • A registered office street address in the state
  • Anything served on the company is scanned and made available online

Strengths

  • Undercuts Mainstay Filing on yearly price
  • Can form the LLC and include the first agent year
  • $99 per year, no step-up at renewal

Watch for

  • Limited to Missouri; other states need another agent
Visit MO Registered Agent.orgPartner link. We may earn money if you buy. MO Registered Agent.org: the full write-up
Rank #3 Missouri only

3. Missouri Registered Agent.co: best for Missouri-based companies

8.8 Editor score out of 10
$99 a year, no change on renewal

Missouri Registered Agent.co takes third spot: $99 a year, flat, with scans of served legal papers delivered online.

Under Missouri Registered Agent.co, the registered office sits at an in-state street address, and served legal papers are scanned for you online.

MO Registered Agent.org and Missouri Registered Agent.co post identical prices and plan features, so the points between them are close and either is a sound pick.

What you get

  • A physical address in the state for the registered office
  • Online scans of each legal paper served on the company

Strengths

  • Undercuts Mainstay Filing on yearly price
  • Yearly price of $99 that holds at renewal
  • Offers formation with a free first agent year

Watch for

  • Limited to Missouri; other states need another agent
Visit Missouri Registered Agent.coPartner link. We may earn money if you buy. Missouri Registered Agent.co: the full write-up

The 3 entries on one card

Place Service Card score Yearly cost Renews at Best for Go
1 Mainstay Filing 9.3 $149 $149/yr An agent for every state Visit Mainstay FilingPartner link. We may earn money if you buy.
2 MO Registered Agent.org 9.0 $99 $99/yr The lowest yearly price we rank here Visit MO Registered Agent.orgPartner link. We may earn money if you buy.
3 Missouri Registered Agent.co 8.8 $99 $99/yr The lowest yearly price we rank here Visit Missouri Registered Agent.coPartner link. We may earn money if you buy.

Scores are Formation Scorecard's own marks out of 10, based on the criteria explained on How we rank. Customers do not rate anything here.

Missouri registered agent cost in 2026: first year, renewal and the three-year tally

Service First year Second year Third year Three-year tally Holds its price at renewal
Mainstay Filing $149 $149 $149 $447 Yes
MO Registered Agent.org $99 $99 $99 $297 Yes
Missouri Registered Agent.co $99 $99 $99 $297 Yes

Each price comes from the company's own site, read on November 12, 2026. Missouri charges its own fees the same way whichever agent you name.

Why the order falls this way

The marking scheme gives 25% to cost across three years and 25% to coverage of the price, with renewal terms, state-by-state fit and pricing clarity sharing 50%. For Missouri, coverage of the price made the difference.

The Mainstay agent plan earns more coverage points: papers served on the company are scanned the same business day for free, one price holds in all fifty states and three government mailings a year are scanned at no charge. MO Registered Agent.org wins on cost, so the two finish close.

Every criterion and weight appears on How we rank.

What Missouri Secretary of State requires of a Missouri registered agent (official)

Every LLC must name a registered agent with an in-state street address. The address has to be a physical street address in Missouri. A P.O. box can be listed only together with a street address. Statute: RSMo 347.030.

Missouri and the yearly report question

Missouri has no yearly LLC report to file. The ongoing task is keeping a registered agent on record, and state notices go to that agent's address.

Missouri registered agent: quick questions

Is a Missouri LLC obliged to keep a registered agent?

It is. Missouri wants every LLC to have a registered agent on file, and that agent must hold a street address inside the state.

What is the going yearly rate for a registered agent in Missouri?

Yearly prices span $99 to $149, and each service holds its price when it renews.

Is it allowed to serve as my own registered agent?

Yes, if you satisfy the state's conditions. A Missouri resident, or a corporation authorized in Missouri, whose business office is the registered office.

Which registered agents sit on this card?

Mainstay Filing ($149 a year), MO Registered Agent.org ($99 a year) and Missouri Registered Agent.co ($99 a year), top to bottom.

What does a registered agent actually do?

The registered agent is where lawsuits, subpoenas and state notices are officially delivered. It accepts them for the company and forwards them, and each plan on this card scans them to your online account.

Which Missouri registered agent scores best on value?

Mainstay Filing, since $149 yearly for an agent that fits a company in one state or in fifty, with the first three government mailings each year scanned free.

Related pages

Where the figures come from

  1. RSMo 347.037, as of August 2026
  2. Missouri formation fee: Filing fee, official source, as of October 2026
  3. Missouri registered agent statute, as of October 2026
  4. Read on November 12, 2026: Missouri service page for Mainstay Filing
  5. Read on November 12, 2026: pricing and service pages for MO Registered Agent.org
  6. Read on November 12, 2026: pricing and service pages for Missouri Registered Agent.co