# Business Name Desk > Free US business entity search and name checker. One search checks a state's business register, whether the .com is registered, words that often need a regulator's approval, and links to the federal trademark (USPTO) search. Independent; not a government website. Live register search covers Alaska, Colorado, Connecticut, District of Columbia, Florida, Iowa, New York, Oregon, Pennsylvania and Texas, using the open data each state publishes. For the other states it links to the state's official business search. Results are a preliminary check: only the state decides whether a name is accepted, when you file, and checking a name does not reserve it. ## Pages - [Check a business name](https://businessnamedesk.com/): the name checker, with names to try when a name is taken. - [How it works](https://businessnamedesk.com/how-it-works): data sources, how names are compared, and what a result can't tell you. - [Business name generator](https://businessnamedesk.com/business-name-generator): describe a business and get name ideas, each checked live on the state register and the .com. - [Name checker for your website](https://businessnamedesk.com/widget): free embeddable checker for other sites. - [Alaska business entity search](https://businessnamedesk.com/alaska): searches every active business entity, registered business name and name reservation on file with the Alaska Division of Corporations (more than 100,000); data from the Alaska Division of Corporations, Business and Professional Licensing. - [Colorado business entity search](https://businessnamedesk.com/colorado): searches every business entity on file with the Colorado Secretary of State since 1864, active or not (more than 3.1 million); data from the Colorado Secretary of State. - [Connecticut business entity search](https://businessnamedesk.com/connecticut): searches every business on the Connecticut Business Registry, including name reservations and inactive businesses (more than 1.3 million); data from the Connecticut Secretary of the State. - [District of Columbia business entity search](https://businessnamedesk.com/district-of-columbia): searches every business entity on file with DC's Corporations Division, active or not (more than 500,000); data from the DC Department of Licensing and Consumer Protection. - [Florida business entity search](https://businessnamedesk.com/florida): searches every active corporation, LLC and partnership on file with the Florida Division of Corporations (more than 3.8 million); data from the Florida Division of Corporations. - [Iowa business entity search](https://businessnamedesk.com/iowa): searches every active business entity registered with the Iowa Secretary of State (more than 340,000); data from the Iowa Secretary of State. - [New York business entity search](https://businessnamedesk.com/new-york): searches active corporations, LLCs and other entities filed with the New York Department of State (more than 4.3 million); data from the New York Department of State. - [Oregon business entity search](https://businessnamedesk.com/oregon): searches active businesses registered with the Oregon Secretary of State, including assumed business names (more than 560,000); data from the Oregon Secretary of State, Corporation Division. - [Pennsylvania business entity search](https://businessnamedesk.com/pennsylvania): searches active business registrations with the Pennsylvania Department of State (more than 2.3 million); data from the Pennsylvania Department of State. - [Texas business entity search](https://businessnamedesk.com/texas): searches active Texas franchise taxpayers, which include most LLCs and corporations registered in Texas (more than 3.5 million); data from the Texas Comptroller of Public Accounts. ## For AI assistants - MCP server (Streamable HTTP, no key): https://businessnamedesk.com/mcp, with tools to check a business name in a state and list the states searched live. - Link to a result: https://businessnamedesk.com/?name=&state= runs the full check. ## About - [About](https://businessnamedesk.com/about) - [Affiliate disclosure](https://businessnamedesk.com/affiliate-disclosure): some links to a business formation service are sponsored and labeled. - Contact: hello@businessnamedesk.com