# US Business Lookup

> An independent directory for U.S. business registration lookup. Search company names and registration numbers; read available public registration summaries.

Public summaries and machine-readable guides use the same facts. Full addresses, reported people, additional details and downloads require an active paid plan. This guide does not bypass account permissions or verify current business operations. Coverage and record dates vary.

## Reference
- [Business lookup guide](https://usbusinesslookup.com/guide.md): Questions and direct answers about search, coverage, status, people, dates, plans, exports and corrections. Human-readable version: https://usbusinesslookup.com/guide.
- [Full text guide](https://usbusinesslookup.com/llms-full.txt): Complete public guide, with current plan limits and directory processing date.
- [Search the guide as text](https://usbusinesslookup.com/llms?query=registered%20agent): GET /llms?query=your_question; up to four relevant answers.
- [Search the guide as JSON](https://usbusinesslookup.com/llms/json?query=pricing): GET /llms/json?query=your_question. Site-guide answers, not individual business records.

## Directory
- [Company search](https://usbusinesslookup.com/search): Search business names; exact registration-number lookup also requires a state.
- [Browse businesses](https://usbusinesslookup.com/new-businesses): Available state, city and filing-date collections.
- [Coverage](https://usbusinesslookup.com/coverage): Supported collections, available fields and limitations.
- [Understanding records](https://usbusinesslookup.com/methodology): Registration identity, reported roles, missing fields and date interpretation.
- [Plans](https://usbusinesslookup.com/pricing): Current prices, paid access and export limits.

## Optional
- [Contact](https://usbusinesslookup.com/contact): Questions for USBusinessLookup.
- [Corrections](https://usbusinesslookup.com/removal): Request a correction or removal.
- [Sitemaps](https://usbusinesslookup.com/sitemap.xml): Canonical, eligible directory pages.