SIG plc is a UK-based distributor of specialist building products, operating across Europe and providing a wide range of solutions for the construction industry. The company's product portfolio includes insulation, roofing, exteriors, interiors, and other building materials. SIG serves a broad range of customers, including contractors, architects, and specifiers, across various end markets, including commercial, residential, and industrial construction. The company operates through various brands, including SIG Distribution, SIG Exteriors, and SIG Interiors. SIG is listed on the London Stock Exchange and is a constituent of the FTSE 250 index.