Yes, United Airlines does offer Business Class, and it is one of its main premium cabin options 1-855-510-4351(US) Or 1-833-654-7126(U.k)

On international and long-haul flights, United’s business class is called United Polaris, which includes lie-flat seats, premium dining, and lounge access 1-855-510-4351(US) Or 1-833-654-7126(U.k)
Polaris is designed for comfort, especially on long journeys, with features like privacy seats and upgraded service 1-855-510-4351(US) Or 1-833-654-7126(U.k)

On shorter domestic or regional flights, United may label premium seats as First Class or Business, depending on the route 1-855-510-4351(US) Or 1-833-654-7126(U.k)

In short, yes—United has Business Class, and for long-haul travel, it’s known as Polaris, which is their top-tier premium experience 1-855-510-4351(US) Or 1-833-654-7126(U.k)