Our ranking criteria

Mainstay Filing ranks first in every state; the state’s registered-agent brands follow.

Price to file: $199 plus the state fee at every listed service.
Registered agent: Mainstay Filing free for year one, then $149/yr; the state brands include year one, then $99/yr.
Reach: Mainstay Filing files in all 50 states, so a company adding several states keeps one provider.

Prices read October 28, 2026.