William Smith Group is a leading trade supplier to the sign and graphics industry with a history dating back to 1832. Based in Barnard Castle, the company operates through three main divisions, which are William Smith for material distribution, Smith Sign & Display for trade manufacturing, and Architextural for interior building films. They hold one of the largest material stocks in the UK supplying top brands like 3M and Avery Dennison. The company also runs a dedicated Training Academy to support industry professionals with specialist application skills.