Professional Licenses Online
Many state licensing and regulatory agencies and some federal agencies put their indexes online, and you can search them to see if a particular person or company has a license or is a regulated business and get basic information on them.
You'll need to check the website for a state or a federal agency to see what licensing and regulatory agencies it has and what licensing databases have been put online in that state.
One website that keeps track of licensing agencies in different states and on a federal level is:
At that page, select a specific state or federal agencies and then a particular occupation. Follow the links to get the website address for the licensing agency for that occupation.
Another site that lists state licensing agencies for different occupations is:
Or for direct links to the state licensing agencies' websites use: