Since our inception in 1976, SPI has grown into the UK's Largest expanded polystyrene manufacturer. We manufacture and supply a range of EPS insulation products, including Stylite EPS insulation and Stylite Plustherm Enhanced EPS insulation. Our building insulation products are suited to building interiors, exteriors, floors, roofs, civil engineering applications and many more. Our polystyrene packaging division also manufactures and supplies a variety of industries with solutions to their packaging needs.