Teesside mainly associated with the local petrochemical, chemical and steel processing industries. The port is an important piece of logistical infrastructure for the NEPIC cluster of process companies. Teesside continues to be used locally to refer the entire urban area and the name can still be seen in the following uses: It has also been adopted for various other purposes as a synonym for the former county of Cleveland. It is common to see Teesside spelled incorrectly as "Teeside", with a single 's'. Teesside Teesside () is the conurbation in the north east of England around the urban centre of Middlesbrough
Trolleybuses in Teesside initially with cream above. From 1932 some buses had silver roofs, later painted white. In the 1940s and 50s there were 3 cream bands, later reduced to 2. Some wartime buses were utility grey. The Roman capitals fleetname with shading was replaced in 1932 by a block logo. Trolleybuses in Teesside The Teesside trolleybus system once served the conurbation of Teesside, in the North East of England. Opened on , it was unusual in being a completely new system that was not replacing any previously operating tramway network. By the standards of the various now defunct trolleybus systems in the