SWS's UK office is in Shrewsbury, which is one of the finest medieval market towns in England, strategically located within a loop of the River Severn, in the county of Shropshire. The SWS office is located in an Environmental Technology Centre, situated on the banks of the river close to the town centre, two minutes walk from the railway station.  This building which complies with the highest environmental standards was completed in March 2008.  Shrewsbury was SWS's first office location, opened when the company was formed in 1989.