3 Best Foreign Registration Services in Oklahoma (2026), Ranked for You
Your 2026 shortlist for foreign registration services in Oklahoma reads Mainstay Filing ($199), OK Registered Agent.org ($199) and Oklahoma Registered Agent.co ($199), in our order. Set aside $300 for Oklahoma to register, and $397 to $497 for services over three years.
Written by the Simple Filing Guide editorial team
Quick guide
Registration fee
$300
Attach a certificate?
Required (60 days maximum age)
Afterward
$25, annual certificate
Our ranking
Mainstay Filing, OK Registered Agent.org then Oklahoma Registered Agent.co
Our Oklahoma shortlist
Ranked best first using the checks described on the method page.
#1Top pick
1. Mainstay Filing: best for registering in many states
$199 plus the state fee, then $149 a year
Mainstay Filing takes the top spot, since the fee is $199 in every state, and the registered agent is included for the first year.
OK Registered Agent.org costs $100 less over three years, provided the company never leaves Oklahoma.
Plan on a free registered agent in year one and $149 a year after, in any state.
Checklist: what is included
Your foreign filing, submitted
Registered agent, included during year one
Priced identically in any state
What works
Agent costs nothing the first year
$199 to file the registration
Fifty states covered
Gaps
Agent renewal of $149 is $50 above OK Registered Agent.org
Across three years the state's total comes to $350. official source sos.ok.gov (October 2026) to check
Where does the registration go?
Send the Application for Registration (Foreign Limited Liability Company) (SOS Form 0081) to the Oklahoma Secretary of State, Business Filing Department.
Add certificate of good standing, existence or fact issued in the past 60 days.
What do I do after the LLC registers?
After registering, expect the annual certificate: $25.
The state sets the deadline at anniversary of the registration date.
Why is the list in this order?
Mainstay Filing is strongest on filing jobs included, and that decides it.
The two heavy checks are total for three years (37%) and filing jobs included (27%); three lighter checks follow.
One company for two states: that is what ranks it first.
Every amount above links to its official source. The last row is our own total of the filing, two reports and any minimum tax, without variable costs like publication.
Also asked
Do I still need an agent in my home state?
Both states apply their own rules, so keep an agent at home too. A provider active in every state, such as Mainstay Filing, can cover both.