Place1
Top pick, all statesMainstay Filing
1. Mainstay Filing: best for founders in every state
Annual price $149; renewal price $149
Our mark9.2out of 10
Mainstay Filing is our first pick: one $149 plan that works in every state, renewing at $149, with the first three government mailings each year scanned free.
Over three years it costs $150 more than WA Registered Agent.org in Washington; the difference buys coverage in every state.
What you get
- A physical in-state address in any state
- Service of process scanned the same business day, no fee
- First three government mailings a year scanned free
- Compliance reminders
Why pick it
- One $149 price, any state
- Same price at renewal
- Same-day scanning of legal papers, no fee
Less good
- Costs more than a one-state agent
Place2
Best for WashingtonWA Registered Agent.org
2. WA Registered Agent.org: best for Washington businesses
Annual price $99; renewal price $99
Our mark9.0out of 10
WA Registered Agent.org comes second with $99 a year for a Washington-only company.
Its plans cover Washington only, which is all a Washington-based company needs.
What you get
- Registered office address in Washington
- Served papers scanned to your online account
Why pick it
- $99 a year, the lowest price on this list
- Same price at renewal
- Legal mail scanned and posted online
Less good
- Other states need a separate provider
- Report filing is on you
Place3
Best for ArizonaAZ Registered Agent.org
3. AZ Registered Agent.org: best for Arizona businesses
Annual price $99; renewal price $99
Our mark8.9out of 10
AZ Registered Agent.org comes third with $99 a year for an Arizona-only company.
Its plans cover Arizona only, which is all an Arizona-based company needs.
What you get
- Registered office address in Arizona
- Served papers scanned to your online account
Why pick it
- $99 a year, the lowest price on this list
- Same price at renewal
- Legal mail scanned and posted online
Less good
- Other states need a separate provider
- Report filing is on you
The 3 picks side by side
| Rank | Service | Our score | Annual price | Renewal price | Best for | Link |
|---|
| 1 | Mainstay Filing | 9.2 | $149 | $149/yr | Best for founders in every state | Visit Mainstay FilingPartner link. We may earn money if you buy. |
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| 2 | WA Registered Agent.org | 9.0 | $99 | $99/yr | Best for Washington businesses | Visit WA Registered Agent.orgPartner link. We may earn money if you buy. |
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| 3 | AZ Registered Agent.org | 8.9 | $99 | $99/yr | Best for Arizona businesses | Visit AZ Registered Agent.orgPartner link. We may earn money if you buy. |
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Each score is our editorial judgment out of 10 (see How we rank), not an average of customer ratings.
What each costs over three years (2026 pricing)
| Service | Year one | Year two | Year three | Three-year total |
|---|
| Mainstay Filing | $149 | $149 | $149 | $447 |
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| WA Registered Agent.org | $99 | $99 | $99 | $297 |
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| AZ Registered Agent.org | $99 | $99 | $99 | $297 |
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Service fees as published on each company's own pages, read November 12, 2026. State brands' prices are for their own state. State filing fees vary by state and are paid on top with every service.
How we picked the order
We score every service on three-year cost and what one price covers (30% each), then renewal terms, fit for the state and price clarity. A nationwide reader needs a service that works wherever they file, which is why the fifty-state option leads. WA Registered Agent.org and AZ Registered Agent.org cost less in their own states, which is why they make the list for Washington and Arizona businesses.
One agent per state
A company needs a registered agent in each state where it is formed or registered. Minnesota, New York, Pennsylvania and West Virginia handle the requirement differently; see their state pages. If you may expand, one provider everywhere is simpler. If you will stay put, a local agent can cost less.
Our state lists
For state fees and rules, go to the state's page; each one ranks the services that work there. See all 50 states.
Questions about registered agents
What are the best registered agents in 2026?
Mainstay Filing, WA Registered Agent.org and AZ Registered Agent.org, in that order on our method.
How much does a registered agent cost?
Expect $99 to $149 a year with the services we rank.
Can one service cover every state?
Mainstay Filing does. The state picks cover one state each.
Are state fees included in these prices?
No. Each service adds the state filing fee on top, at cost.
Why are single-state services on a nationwide list?
They cost less at home, which matters for a company that will not expand. WA Registered Agent.org is our pick for Washington businesses; AZ Registered Agent.org for Arizona businesses.
How did you choose the order?
Our How we rank page lists the five criteria and their weights; this list follows them.
Official sources and price pages
- Pricing and service pages of Mainstay Filing, read November 12, 2026
- Pricing and service pages of WA Registered Agent.org, read November 12, 2026
- Pricing and service pages of AZ Registered Agent.org, read November 12, 2026