Located in Santa Clara, California, UB was the first large networking company independent of any computer manufacturer.

UB specialized in large enterprise networks connecting computer systems and devices from multiple vendors, which was unusual in the 1980s.

Many UB products initially used the XNS protocol suite, including the flagship Net/One,[7] and later transitioned to TCP/IP as it became an industry standard in the late 1980s.

Before it became the industry standard, the Internet protocol suite TCP/IP was initially a "check box" item needed to qualify on prospective enterprise sales.

Over the next several months, Newbridge laid off the bulk of the Ungermann-Bass employees, and closed the doors of the Santa Clara operation.