About Us

SOS Business Search is an independent directory built for one purpose: helping people quickly find the official business entity search tool for any U.S. state. We link directly to each state's Secretary of State (or equivalent agency) lookup tool and walk through how to use it, organized by state so you don't have to hunt for the right page.

Every guide covers the details people actually need — which agency runs the search, what you can search by, and where to go for filing fees, licensing, and registered agent requirements. When a state's process has quirks, we call them out plainly so you know what to expect before you start.

We also publish a small set of general reference guides covering common business filing topics — certificates of good standing, LLC dissolution, UCC filings, and registered agents — so you can get a quick answer without leaving the site.

SOS Business Search is not affiliated with, endorsed by, or operated by any state government or Secretary of State office. We're an independent publisher, and our guides are compiled and maintained separately from any official state system. For official business — filing paperwork, paying fees, or checking entity status — please visit the relevant state's official website.

Spot a link or piece of information that looks out of date? We'd like to know — visit our Contact Us page and send us the details.