Taxi top LED displays in the USA are primarily used by taxi companies and ridesharing services such as Uber and Lyft. These displays are typically installed on the roof of the taxi or rideshare vehicle and can be used to display advertisements, promotions, and other information to passengers and passersby.

In addition to taxi companies and ridesharing services, some businesses and organizations may also use taxi top LED displays for advertising purposes, such as promoting events, products, or services. For example, a concert promoter may use taxi top displays to advertise an upcoming show, or a local business may use them to promote a sale or special offer.

It’s worth noting that the use of taxi top LED displays may be subject to regulations and restrictions in certain cities or states, so it’s important to check local laws and guidelines before using these displays for advertising purposes.