3 Best Foreign Registration Services in Missouri (2026): Prices Tracked
For foreign registration services in Missouri this 2026, the order on the watchlist is Mainstay Filing ($199), MO Registered Agent.org ($199) and Missouri Registered Agent.co ($199). On top of Missouri's $105, three years of service run $397 to $497.
Tracked by the Filing Price Watch editorial team
Ordered by:
Best value first, using our five measures
Missouri price snapshot
Fee paid to the state$105sos.mo.gov (pulled October 2026, noted here)
Year-one prices$199Excludes government fees
Total after 3 years$397 to $497Year one and both renewals
State total, three years$105Same whichever service you use
Break-evenDoes not happenNo service overtakes another
What Missouri services charge
Services are ordered by value, and every price comes from a company page. The $105 state fee is kept outside the prices.
#Ordered byPrice in year 1Price at renewalThree-year spend
1
Number one
1. Mainstay Filing: best for one fee in any state
$199 to register, $149 a year after
Price in year 1$199
Price after year 1$149/yr
Three-year spend$497
In Missouri, Mainstay Filing is the best value because registration in Missouri for $199 plus state fees, with the first agent year paid.
You would save $100 over three years with MO Registered Agent.org and keep more filings on your own plate.
Agent service from year two: $149 a year, in any state.
Price covers
Registration sent to the state office
Registered agent is free in year one
The same fee in every state
Holds up
Registered agent is free in year one
Same fee wherever you register
$199 added to Missouri's fee
Weak spots
A higher agent renewal ($149)
2
Built for Missouri
2. MO Registered Agent.org: best for a lone extra state
$199 to register, $99 a year after
Price in year 1$199
Price after year 1$99/yr
Three-year spend$397
MO Registered Agent.org takes spot 2 because it charges $199 to register and covers a year of agent service, then $99 a year.
Price covers
Registration paperwork filed
A year of agent service to begin with
Holds up
$199 to register
A small $99 renewal
Agent service free in year one
Weak spots
Limited to one state
3
Built for Missouri
3. Missouri Registered Agent.co: best for a nearby provider
$199 to register, $99 a year after
Price in year 1$199
Price after year 1$99/yr
Three-year spend$397
Missouri Registered Agent.co takes spot 3 because it charges $199 to register and covers a year of agent service, then $99 a year.
Its prices are identical to MO Registered Agent.org's.
Each line above links to the state's own page. Summing them gives the three-year state figure, which covers filing, years two and three of reporting and a minimum tax where there is one.
Notes on the ranking
In Missouri, filings covered by the price (29% of the order) was the measure where Mainstay Filing pulled ahead.
Many states for one price beat MO Registered Agent.org's lower renewal.
Missouri foreign LLC registration fee and rules, as written by the state
To register: the Application for Registration of a Foreign Limited Liability Company (Form LLC 4) to the Missouri Secretary of State, Corporations Division, with $105. You must also supply certificate of good standing/existence from the home state dated inside 60 days.
If it never registers: a ban on suing in Missouri courts until it registers (RSMo 347.163.1).
The state says: dor.mo.gov (pulled October 2026, noted here)
State fees and nothing else
Skip the services and Missouri still collects $105 across three years, while you fill out every form. Hiring help costs $397 to $497.
Frequently asked
How much does it cost to register a foreign LLC with Missouri?
$105 at the filing office, and these services add $199.
What do these services cost over three years?
The first year and two renewals total $397 to $497.
What form registers the LLC?
The registration is Application for Registration of a Foreign Limited Liability Company (Form LLC 4), filed with the Missouri Secretary of State, Corporations Division.
Does Missouri ask for a certificate from the home state?
Yes, no more than 60 days old: certificate of good standing/existence from the home state.
What recurring filing comes after registration?
None. Foreign LLCs have no recurring report in this state.
In what year does one service become pricier than another?
Within a decade the totals never swap places.
Which foreign registration service is the best value for Missouri?
Mainstay Filing wins on filings covered by the price, followed by MO Registered Agent.org and Missouri Registered Agent.co.